Measure leakage current to a known earth ground (water pipe, conduit, etc.) by connecting a leakage current tester such as Simpson Model 229-2 or equivalent between the earth ground and all exposed metal parts of the appliance (input/output terminals, screwheads, metal overlays, control shaft, etc.). Plug the AC line cord of the appliance directly into a 120V AC 60Hz outlet and turn the AC power switch on. Any current measured must not exceed 0.5mA.

2. PRODUCT SAFETY NOTICE

Many electrical and mechanical parts in the appliance have special safety related characteristics. These are often not evident from visual inspection nor the protection afforded by them necessarily can be obtained by using replacement components rated for voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in this Service Manual. Electrical components having such features are identified by marking with a on the schematics and on the parts list in this Service Manual. The use of a substitute replacement component which does not have the same safety characteristics as the PIONEER recommended replacement one, shown in the parts list in this Service Manual, may create shock, fire, or other hazards. Product Safety is continuously under review and new instructions are issued from time to time. For the latest information, always consult the current PIONEER Service Manual. A subscription to, or additional copies of, PIONEER Service Manual may be obtained at a nominal charge from PIONEER.
Device under test Test all exposed metal surfaces
Reading should Leakage not be above current 0.5mA tester
Also test with plug reversed (Using AC adapter plug as required)

Earth ground

AC Leakage Test
2. EXPLODED VIEWS AND PARTS LIST

NOTES:

Parts marked by "NSP" and can not be supplied. The mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation. Screws adjacent to mark on the product are used for disassembly.

2.1 PACKING

9(1/2) KUCXJ Type Only 12

S EL PE

V LO EK CF SS LP SI D CS XU A AB.P S

CS CS ID

ID C EL RA

OP W RE

KUCXJ Type Only

NO M NO O ITA TS

ER OM ET UC X0R 52 NU TI C NO RT LO

DBDXJ Type Only 15 16

ID ER EP TA

AR DN MO

9(2/2) 8(1/2)

8(2/2)

(1) PACKING PARTS LIST

Mark No.

Description
FM Antenna Operating Instructions (English/French) AM Loop Antenna Remote Control Unit (CU-XR054) Battery Cover Dry Cell Battery (R6P, AA) Catalog Bag (0.340) Front Pad

Part No.

ADH7004 See Contrast table (2) XTB3001 XZN3046 AZA7204 VEM-013 Z21-038 XHA3003
Rear Pad Packing Case Packing Sheet Warranty Card Power Cord Polyethylene Bag Operating Instructions (Chinese/portuguese) Operating Instructions (English/Spanish)
XHA3004 See Contrast table (2) AHG7049 See Contrast table (2) See Contrast table (2) AHG7033 See Contrast table (2) See Contrast table (2)

NSP NSP

(2) CONTRAST TABLE
XR-A550MD/KUCXJ and DBDXJ are constructed the same except for the following :

Symbol and Description

Operating Instructions (English/French) Packing Case Warranty Card Power Cord Operating Instructions (Chinese/Portuguese) Operating Instructions (English/Spanish)

KUCXJ Type

XRE3021 XHD3078 ARY7023 ADG7022 Not used Not used

Part No. DBDXJ Type

Not used XHD3079 Not used ADG1158 XRC3011 XRE3022

Remarks

2.2 EXTERIOR (1/2)

14 KUCXJ Type Only

11 Note : Attatch on the same numbers three 12
Refer to "2.5 $M MECHA CD DIGITAL ASSY
(1) EXTERIOR (1/2) PARTS LIST

NSP 19 20

22P F.F.C/30V $M MECHA CD DIGITAL Assy Volume Knob FL Cover A FL Cover C Tray Cap Display Panel Bonnet Case Screw Pioneer Badge Screw Disc Label Jog Knob Assy 65 Label Screw Cushion Rubber Tray Cap Assy
XDD3018 XXA3006 XAA3005 See Contrast table (2) XAK3071 XAK3075 See Contrast table (2) XZN3001 BPZ30P100FZK XAM3001 VBT30P080FZK XAX3127 XXG3023 See Contrast table (2) BCZ30P080FZK

XEB3002 XXG3031

FL Cover A Display Panel 65 Label
Part No. KUCXJ Type DBDXJ Type
XAK3093 XAK3057 ARW7050 XAK3026 XAK3064 Not used

2.3 EXTERIOR (2/2)

19 KUCXJ Type Only 19 22

DBDXJ Type Only 33 21

Refer to "2.7 MD MECHANISM ASSY". 19 5
Refer to "2.4 FRONT PANEL SECTION".
(1) EXTERIOR (2/2) PARTS LIST
AF Assy SECONDARY Assy PRIMARY Assy FM/AM TUNER MODULE Power Transformer (T1) DC Fan Motor Fuse (FU1) Chassis MD Mechanism Assy MD Bracket R PCB Bracket MD Bracket L Heat Sink Wire Clip Rear Panel
See Contrast table (2) See Contrast table (2) See Contrast table (2) AXQ7065 See Contrast table (2) AXM7003 See Contrast table (2) XNA3002 AXA7054 XNG3011 XNG3006 XNG3010 XNH3003 XEC3002 See Contrast table (2)

30 NSP 33

MD MAIN Assy Fan Plate Push Rivet Screw M3 Plastic Screw Screw Cord Clamper MD SUB Assy Screw Connector Assy 9P Connector Assy 3P Separation Sheet Screw SUB TRANS Assy Binder PCB Spacer Fuse Caution Label Fuse (FU2, FU3 : T1.6A)
See Contrast table (2) ANG7153 AEC7149 VBZ30P080FZK XBB3001 ASZ40P060FMC RNH-184 See Contrast table (2) BPZ30P100FZK XDE3008 XDE3024 XEC3010 BBZ30P300FMC See Contrast table (2) ZCA-SKB90BK AEC7080 See Contrast table (2) See Contrast table (2)

AA.GND BUCKUP

CON 3.2V

TP1412

C1810 1
L3CLK L3MODE L3DATA GND VCC EEPK EEPD EPCS EEPRO

SYSD5 SYSD4

TP1413 TP1414 TP1415 CR1476 1K EEPK EEPD EPCS R1474 PRO 1K

R1475 1K

L3CLK L3MODE L3DATA

R1715 1K 1 R1716 3.3K

C1706 10/16

TP1710

C1743 47/4 C1703 47/4 AA.GND R1710 30K L1702 10H TP1702 L1701 10H

C1700 0.01

R1713 39K R1701 1M
R1714 39K R1702 680K C1712 47/4

TP1711

L3CLK L3MODE

LDON TP1416

R1478 10K
Q1701 2SC2412KR C1707 10/16

ICNJM431U

Q1820 2SA1162G SYD0 SYD1 SYD2 SYD3

C1806 10

SYWR SYSD7 SYSD6
VREF3.2V TP1802 C1807 220/4
Q1807 2SA1314C RRRR1808 27K

JC121 0.047

Q1821 RNC2 1

R1827 270

PDOWN 2 R1939 1K R1456 1K

TP1501

BUCKUP

R1947 47

MD FLEXIBLE PCB

SYWR SYD7 SYD6 SYD5 SYD4

Q1822 RNC1 3

IC1801 XC62EP32

TP1803 Q1804 2SA1162G Q1806 RNCR1810 1K 2 1

RRR1811 27K C1704 1

R1461 10K R1459 10K
LOADIN RESET Q1451 RNCR3.3K 1 TP1505 STID DSCK TP1506 SERCH TP1507 KDATA TP1508 MDDATA TP1509 DSTB TP1510 C1904 0.33 R1463 10K C1425 0.047 D.GND
TP1502 TP1503 TP1504 R1454 1K R1458 6.8K R1460 6.8K R1462 6.8K RRTP1511 TP1512

TP1801

C1803 10

Q1801 2SA1314C

R1801 1.8K

C1802 100/10

R1473 100K C1405 0.1 PCNT0

R1804 220K R1805 100K

C1801 2.2 P.GND
TP1515 CLR190 4.7H R1995 2.2K RR1707 4.3K R1708 4.3K R1735 47K RR1734 47K CJ172 C1722 220P 100P (CH) (CH) R1994 2.2K C1729 220P C1724 100P (CH) JCL1950 JC196 1H 00 TP1518 TP1516 TP1517 TP1519 TP1520 TP1521 TP1522 TP1523 TP1524 JC170 00

3 Q1803 RN1406 1

3 Q1802 RN1406
PDOWN 1 BUCKUP LOAD SW RESET MD-ST DSCK SERCH KDATA MDDATA DSTB D.GND D.GND D.GND D.GND DVDD DVDD AVCC L IN AA.GND R IN AD.GND L OUT AA.GND R OUT 24

WAVEFORMS

PLAY STATUS

Stopped NORM: 100M S/s

PIT PLAY
1997 / 08 / 04 09:30:15 500ns/div Filter SMOOTH OFF BW FULL Offset CH1 CH2 CH3 CH4 --0.000V 0.000V 0.000V

Stopped NORM: 1M S/s

1997 / 08 / 04 13:35:24
CH2 2V DC 10:1 CH3 200mV CH4 5V AC 10:1 DC 10:1 1ms/div

CH1 500mV AC 10:1

CH1 2V DC 10:1
Filter SMOOTH OFF BW FULL CH1 CH2 CH3 CH4 Offset 0.000V 0.000V --0.000V

TP(EFMMON)

Record Len Main 500 Zoom 10 Detay 0.000s Hold Off MIN Trigger NORMAL EDGE CH1

TP1218 (TEMON)

Record Len Main 10K Zoom 100 Detay 0.000 00s

TP1217 (TOTMON)

Hold Off
MIN Trigger AUTO EDGE CH2

TP1212 (TCRS)

Stopped NORM: 2M S/s

GROOVE PLAY

1997 / 08 / 04 11:43:05 CH2 500mV AC 10:1 500us/div Filter SMOOTH OFF BW FULL Offset CH1 CH2 CH3 CH4 ----0.000V 0.000V

1994 / 08 / 04 13:37:11

CH2 2V DC 10:1 CH3 200mV AC 10:1 CH4 5V DC 10:1 1ms/div

TP1103 (T+)

Record Len Main 10K Zoom 100 Detay 0.000 000s

TP1218

TP1101 (T-)
MIN Trigger NORMAL EDGE CH1

TP1217

TP1212

Stopped NORM: 50M S/s

1997 / 08 / 04 11:56:15 CH2 2V DC 10:1 20us/div Filter SMOOTH OFF BW FULL CH1 CH2 CH3 CH4 Offset 0.000V 0.000V 0.000V 0.000V

POWER OFF

Stopped NORM: 500 S/s
CH1 2V DC 10:1 CH2 2V DC 10:1 CH3 2V DC 10:1

STANDBY

1997 / 08 / 04 12:58:01

CH4 2V DC 10:1 2s/div

CH1 1V DC 10:1
Filter SMOOTH OFF BW FULL CH1 CH2 CH3 CH4 Offset 0.000V 0.000V 0.000V 0.000V

TP1138 (ADLPFO)

TP1216 (FEMON) TP1218
Record Len Main 10K Zoom 100 Detay 0.0s
Record Len Main 10K Zoom 100 Detay 0.00s

TP1137 (WBO)

Hold Off MIN Trigger AUTO EDGE CH1

POWER ON

1997 / 08 / 04 11:55:38 20us/div Filter SMOOTH OFF BW FULL CH1 CH2 CH3 CH4 Offset 0.000V 0.000V 0.000V 0.000V

Stopped NORM: 1k S/s

1997 / 08 / 04 13:57:22

CH4 5V DC 10:1 1s/div

CH2 2V DC 10:1

CH1 2V AC 10:1

CH2 2V AC 10:1

CH3 5V AC 10:1

Filter SMOOTH OFF BW FULL Offset CH1 CH2 CH3 CH4 ------0.000V

TP1102 (F+)

TP1137
Hold Off MIN Trigger NORMAL EDGE CH1

13 DSENSE

Hold Off MIN Trigger AUTO EDGE CH2

1997 / 08 / 04 14:19:52

CH2 2V DC 10:1 CH3 5V DC 10:1 CH4 5V DC 10:1 1s/div

Q8252 Q8251

B CD ASSY

(ANP7144-E)

IC8201

IC8101 C

IC8301

4.4 PWB-A

PWB-A (MD MAIN ASSY)

MD Flexible Board

G CN4002

CN1 C1251 C1252 R1251
Q1251 Q1820 Q1252 Q1253 Q1254 Q1822 Q1821 Q1451 Q1403 Q1404 IC1251 Q1804 Q1806

R1735 R1733

R1708 R1995

R1459 C1425

Q1253 Q1254

Q1404 Q1451

R1 R1252

R1807 R1806

ICJ1921 14

IC1916

IC1916 IC1701 IC1907 Q1701

1 R1717

QR1714 C1700 C1717

C1954 C1951 C1964

IC1907

IC1906

RED M BLK
R1715 C1702 R1702 L1702 C1720 IC1202

14 C1992

IC1990

IC1906 IC1202 IC1990

CN1602

R1255 R1269

D1990 8

L1203 C1210

C1145 R1166
RR1263 C1610 R1262 R1261 C26 25

IC1201 Q1601

XL1201

R1612 R1609

M902 MD SLED MOTOR

1 CN1603 2

L1102 R1668 L1601 L1201 R1100
are waveform Nos. on pages 25 and 26.

TP1524 JC170

JC171 C1803 TP1518 TP1516 TP1504JC121 R1947 TP1522 TP1520 TP1519 TP1502 TP1512 TP1503 TP1517 JC196 TP1521 TP1501 R1805 Q1807 IC1801 R4 TP1908 TP1252 TP1907 TP1905

G CN4101

TP1523

TP1511

1 C1805

5 R1821

R1801 C1802 C1801 R1802
R1809 C1806 TP1802 R1808 TP1901 C1913 R1927 CN1904
TP1910 TP1906 TP1909 TP1251

Q1807 IC1801 Q1801

C1807 Q1802 TP1515 Q1803
TP1509 TP1507 C1715 C1713 TP1508 R1424 TP1803 TP1713 TP1510 TP1506 TP1404 TP1456 TP1455 R1422 R1423 R1430
TP1902 TP1255 TP1405 R1429 R1401 R1404 C1402

R1974 TP1911

TP1505

1 TP1260

4 TP1904

Q1802 Q1803

TP1278 C1710 C1707 TP1701 TP1710 TP1712 C1703 R1478 C1712 CTP1416 81

TP1457

RTPR1420 C1423 TP5 75
IC1802 IC1401 Q1402 IC1402 Q1401
R1473 TP1711 TP1990 C1743 TP1702 TPTP1415 CR1476 RIC1401 15

IC1802 R1716

TP1413
Q1402 R1412 R1413 C1407 C1991

R1427 R1425

TP1601

IC1402

C1421 C1422

R1474 TPTP1214 TP1215

C1412 J1405 R1408 Q1401 C1403
TP1280 R1416 R1414 TP1279

F CN1901

Test Mode Menu

LCD Check
Changes the LCD pattern according to key input and checks for defects in the LCD.

LED Check

Turn on and off the LED in order according to key input.
Auto Recording/Palyback Check
Outputs a request for function changeover to AUX with a bus. REC is executed in analog after 1 second. Stops recording after 3 seconds and outputs a request for function changeover to MD with a bus. After 1 second, the recorded portion will be played back for 3 seconds without confirming that the function has switched to MD. When the S.M. JOG key is turned counterclockwise, digital input is activated and the same operations as above will be performed. When the S.M. JOG key is turned clockwise, the function is switched to CD (1) and only signal ON/OFF will be confirmed digitally.
6.4.2 Test Mode 2 6.4.2.1 Preparations

Test Disc

Part Number

TGYS1 GGF1277 GGF1276

High refective disc TGYS1 (SONY)[for playback] Low refective disc Recording minidisc Transparent disc for adjustment head
Extension Cable (Refer to Fig.7)
5 Extension board for servicing 2-pin extension connector for servicing 6-pin extension connector for servicing 5-pin flat cable for servicing 28-pin flat cable for servicing
GGF1320 GGD1108 GGD1181 GGD1182 GGD1180

6.4.2.2 Test Mode

Short the TEST 2 terminal while the power is ON.

TEST MODE 2 (FRONT)

Fig.1 Test Mode Short Point
Microcomputer Version Display (1 sec)
(1 second when EJECT is completed.)

[tsm????e??]

EEPROM protect data version (from 01) Microcomputer ROM version (from 01) Model code
When this is displayed, it is called "Test Mode Stop status." In "Test Mode Stop status" and "EJECT status": Operation will switch to the mechanism forced EJECT direction while button is pressed. Operation will switch to the mechanism forced LOAD direction while 1 button is pressed. In each Menu status: The mechanism slide outer track feed will operate while the S.M. JOG key is turned clockwise. The mechanism slide inner track feed will operate while the S.M. JOG key is turned counterclockwise. To move according to the adjusted value set in Test Mode, Press the PRESET key in Test Mode Stop status. The adjusted value will be written to EEPROM and the AUTO Adjustment Disabled Mode will be engaged. Notes) Canceling the AUTO Adjustment Disabled Mode will stop the power supply. (If a receiver is connected, disconnect the receiver power cord.) When a setting is changed in Test Mode and the unit is moved according to that setting, the mechanism may not operate if the set value is faulty. When changing a set value, therefore, make a note of the original value. In Test Mode the companion may be not only the SX-R9 but also the power jig. When the TEST2 terminal has been shorted without a bus being received even once after RESET, the bus data will be ignored and POWER ON status determined, and the unit will operate independently. When the TEST2 terminal is shorted again under these conditions, the normal operation will be restored.

Test Mode 2 Menu

1. AUTO Preliminary Adjustment Mode 2. AUTO Adjustment Mode Executes AUTO Preliminary Adjustment. (After adjustment, Grating Adjustment Mode is engaged.) Outputs adjusted value. Executes AUTO Adjustment. Outputs adjusted value. Executes continuous playback (error rate display, jump test) Displays measured values, set values, and calculated values. Changes set value manually (in Servo OFF status). Displays set value (after calculation). Changes set value manually (in Servo OFF status). Executes RF side manual adjustment. Executes focus/tracking signal ATT manual adjustment. Executes focus/tracking signal offset adjustment. Executes focus/tracking signal ATT manual adjustment. Manually changes all digital servo coefficients, etc. Turns each servo ON independently. Measures temperature detector terminal voltage and standard value. Executes continuous playback from designated address. Measures C1 error rate and ADIP error rate. Executes continuous recording from designated address. Changes recording laser output (and also changes servo gain to match laser output). Measures point where INNER switch is turned ON. To (EEPROM set) TEMP setting To (EEPROM set) CONTROL setting Laser power setting (Rec/Play power)
3. RESULT Preliminary Mode 4. RESULT Mode (this adjustment) 5. MANUAL Preliminary Adjustment Mode
6. MANUAL Adjustment Mode 7. EEPROM Setting Mode
8. TEST-PLAY Mode 9. TEST-REC Mode 10. INNER Mode 11. EJECT Mode
1. AUTO Preliminary Adjustment Mode (Low-Reflectance Disc Only)

Step No.

Step 1 Step 2 Step 3

Setting Method

Test mode STOP state Press the MENU button once. Press the ` button once.
AUTO Preliminary Adjustment Menu Slide moves to innermost track and AUTO Preliminary Adjustment is engaged. During AUTO Adjustment, will change as follows. HAo = RFg = SAg = SBg = PTG = PCH = GTG = GCH = RCG = SEG = RFG = SAG = HAO = HEO = TCO = LAO If adjustment is OK, go to step 4. If adjustment is NG, go to step 5.

Display

[ tsm????e?? ] [ _AUT_YOBI_ ] [ : _ _ _ _ _ _ ]
End of Adjustment Step 4 Grating adjustment, adjusted value output Press the STOP button. Adjusted value output Press the STOP button.
[ _COMPLETE_ ] Step 2 [ Can't_ADJ. ] Step 2 AUTO Preliminary Adjustment Menu

8. TEST-PLAY Mode

Test mode STOP state Press the ENTER button. Press the DELITE button. Press the ` button. Continuous playback (pit) Continuous playback (groove) Press the DELETE button. Continuous playback (groove) Press the STOP button. TEST-PLAY Menu
[ tsm????e?? ] [ TEST_ PLAY_ ] [ ADRES _ 0050 ]
ADRES setting (displays standard address initial setting) Sets Search output to "H" during Search operation and returns to "L" at start of playback. (Address + C1 error display) (Address + C1 error display) (Address + ADIP error display) TEST-PLAY Menu

Step 4 Step 5 Step 6

[ s &&&& c ???? ] [ a &&&& c ???? ] [ a &&&& a ???? ] [ TEST_PLAY_ ]
&&&&: Address, ????: Error rate, 555: Number of Jumps If the STOP (7) button is pressed while the TEST-PLAY Menu is displayed, operation moves to Test Mode STOP status. If the ` button is pressed while the TEST-PLAY Menu is displayed, continuous playback will commence from the pickup point at that time. Each time the ENTER button is pressed in Address Setting Mode, the address will change as follows: 0050 = 03C0 = 0700 = 08A0 = 0050 =. Each time the DELETE button is pressed in Address Setting Mode, the digits will change as follows with the S.M. JOG button. 0050 = 0050 = 0050 = 0050 =. In Address Setting Mode, the designated address digits can be changed +01H / 01H with the S.M. JOG and DELETE buttons (0 F). If the S.M. JOG button is turned and held down, the data will change in 100ms cycles. If the DISP/CHARA button is pressed in Continuous Play Mode, the number of Jumps will change as follows: 1 Jump = 10 Jumps = 400 Jumps = 1 Jump =. After the number of Jumps is displayed for 1 second, the Address display will be restored [ 555TR_JUMP ] If the S.M. JOG button is turned in Continuous Play Mode, the designated number of Jumps will be executed in FWD/REV directions. If the S.M. JOG button is turned and held down, the data will change in 100ms cycles.
Each time the DELETE button is pressed in Continuous Play Mode, the display will change as follows: Pit part: Continuous playback (SUBQ address display + C1 error display) is unchanged. [ s &&&& c ???? ] Groove part: Continuous playback (ADIP address display + C1 error display) [ a &&&& c ???? ] Continuous playback (ADIP address display + ADIP error display) [ a &&&& a ???? ] Continuous playback (ADIP address display + C1 error display) [ a &&&& c ???? ]

Spin Settings

Item display SPG SPG-in SPG-mid SPG-out SP1 SP2 SP3 SP4 SP5 S PDLIM ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? Set value 20H B8H 76H 50H 10H 87H E3H E3H 10H 78H
(6) Press the MENU button 7 times. [ EEPROM_SET ] (7) Perform the operation shown in the "EEPROM Setting Mode Transition Diagram," compare the "EEPROM Content Table" and the display, and set the "EEPROM Content Table" with the FADE-OUT button and the FADE-IN button. (8) Set the temperature standard value. (See "Temperature Standard Value Setting Method.") (9) Set all settings the same as those in the "EEPROM Content Table." (10) Execute AUTO Preliminary Adjustment and AUTO Adjustment. (11) Cancel the ICpin and 2 pin short. (12) Press the PRESET button and write to EEPROM.
2. Temperature Standard Value Setting Method (Must be set with room temperature of 21C 29C.)
(1) Test Mode STOP status. [ tsm????e?? ] (2) Because of the ambient temperature, apply a temperature correction in accordance with the following table.

Tracking Settings

Item display TG TF1 TF2 SVCNT4 TRBLVo TRBLVt TRKLVo TRKLVt TDPWo TDPWt SLCTo SLCTt SLCTm TCRSCIP COTLVP COTLV r WAITm ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? Set value 45H 70H E0H 01H 53H 60H 4CH 38H 89H 1AH 00H 40H 53H 16H 14H 28H FFH
Example) When the measured temperature is 73H and the ambient temperature 22C, Temperature set value = 73H - 01H = 72H. When there is a discrepancy between two measured temperature values, set the lower value. (If the measured values are 73H and 72H, for example, use 72H.)

Slide Settings

(3) (4) (5) (6) Press the MENU button 7 times. [ EEPROM_SET ] Press the ` button once.. [ _ _Focus_ _ _ ] Press the MENU button 4 times. [ _ _ _ Temp_ _ _ ] Press the ` button.. [ TEMP_ ??_ ] ??: Measured value, : Set value (7) Set the temperature set value to the value determined above, using the /1 buttons. (8) Press the ` button.. [ _ _ _ Temp_ _ _ ]
Item display SLG SL2 SLDLIM SLDLEV SLKLVk SLKLVt SLKLVm ?? ?? ?? ?? ?? ?? ?? Set value 35H 27H 65H 16H 55H 3AH 55H
EEPROM Setting Mode Transition Diagram

t s m ???? e??

MENU 7

Test Mode STOP status

E E P R O M_S E T EEPROM Setting Menu `
EJECT status _ _E J E C T _ _ _

_ _F o c u s _ _ _ `

MENU X5
_S p i n d l e_ _ FG_ _ _ _ _ _
_T r a c k i n g _ TG_ _ _ _ _ _
_ _ _S l e d_ _ _ S L G_ _ _ _ _ S L 2_ _ _ _ _

MD REC

_ _ _T e m p _ _ _ T E M P_??_ `
_C o n t r o l _ _ C O N T R L 1 _

MENU MD REC

FL Display Pin Assignment 53 1

Grid Assignment

B16 B8

B8 B24

B17 s t u w

S1 Dp2

L12 L10 L8 L6

R8 R6 R4

R10 R12
L4 L2 f g L11 LS L9 L7 L5 L3 L1 e r

j k m n p c Dp1 b

R11 RS

(2G to 9G)

Pin Connection
Pin No. 27 Connection F2 F2 NP NP NX 1G 2G 3G 4G 5G 6G 7G 8G 9G 10G 11G 12G 13G 14G NX NX P1 P2 P3 P4 P5 P6 Pin No. 2 1
Connection P7 P8 P9 P10 P11 P12 P13 P14 P15 P16 P17 P18 P19 P20 P21 P22 P23 P24 P25 P26 P27 NX NP NP F1 F1 NOTE 1) F1, F2.. Filament 2) NP. No pin 3) NX. No extend pin 4) DL.. Datum Line 5) 1G to 14G.. Grid 6) Field of vision is a minimum of 25.8 from the lower side.
Anode Connection 1G P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 P12 P13 P14 P15 P16 P17 P18 P19 P20 P21 P22 P23 P24 P25 P26 P27 2G 3G to 6G 7G a1 a2 h j k b f g m c e r p n d1 d2 s t u w Dp1 a1 a2 h j k b f g m c e r p n d1 d2 Dp1 a1 a2 h j k b f g m c e r p n d1 d2 Dp1 Dp2 8G a1 a2 h j k b f g m c e r p n d1 d2 Dp1 9G a1 a2 h j k b f g m c e r p n d1 d2 10G 11G L1 L2 L3 L4 L5 L6 L7 L8 L9 L10 L11 L12 LS B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11 B12 B13 B14 B15 B16 B17 B18 B19 B20 B21 B22 B23 B24 S1 (EQ) (SURR.) (P.BASS) 12G B1 B2 B3 B4 B5 B6 B7 B8 13G 14G B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11 B12 B13 B14 B15 B16 B17 B18 B19 B20 B21 B22 B23 B24 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 RS

XR-A550MD 7.2 DIAGNOSIS

7.2.1 DISASSEMBLY $M MECHANISM CD

Bonnet Case

Tray Cap

Main Cam

Note: The loading tray can be pulled out when the main cam is in this position. (The Lock Lever should be in the notch of the Main Cam.)

Unhook

Fitting

Lock Lever

$M Mechanism CD

FRONT PANEL

1 Unhook

2 Unhook

FM/AM TUNER MODULE AF Assy

Front Panel

DISPLAY Assy SUB TRANS Assy
MD MAIN Assy PRIMARY Assy SECONDARY Assy MD SUB Assy
$M MECHANISM CD ADDITIONAL TO JOB
Mechanism Base (Bottom View)

Front Side

Clamper Holder

1 Clamper Holder 2 Hook

Servo Base
Servo Mechanism Assy 1 Hook Hook Servo Base

Actuater

1 Hook
FITTING THE PULLEY INTO THE CARRIAGE MOTOR
For replacement of the carriage motor, fit the motor pulley by using the servicing pulley press-in station located on the loading tray, as shown in the figure on the right.
Carriage Motor Motor Pulley
Servicing pulley press-in station

Loading Tray

MD MECHANISM ASSY

MD MAIN ASSY

MD Mechanism Assy

Top Cover

Refer to "MD MECHANISM SECTION".

Bottom Cover

MD MECHANISM SECTION
Removing the Magnetic Head (Fig.1)
(1) Remove a Screw (A1). CAUTION: Take adequate caution not to damage the Magnetic Head during reinstallation.

(A1) 1 1.75mm

Slider Lever Roller Arm Lever
Removing the Cartridge Holder (Fig.2)
(1) Open the roller arm lever in the direction of the arrow, and lower the clamper lever until it reaches the unit rear. (2) Apply +5V to the red wire side of the loading motor blue connector, and push the rack gear in the direction of the arrow, moving it until the cam plate lever starts to clatter. (3) Remove the screw (B1) 1 and spring (B2) 1 holding the holder arm in place, and remove the cartridge holder, sliding it out to the left.
Cartridge Holder (B1) 1 1.75mm
Clamper Lever Loading motor
Rack Gear Holder Arm Cam Plate Lever (B2) 1
(E1) 1 1.73mm (E1) 1 1.79.5mm
Removing the MD MECHANISM SWITCH Assy (Fig.3)
(1) Remove the two Screws (E1). Remove the MD MECHA SW Assy.

MD MECHANISM SWITCH ASSY

Removing the Slide and Loading Motors (Fig.4)
(1) Remove the four Screws (D1) to remove the Slide and Loading Motors. CAUTION: Be careful not to damage the Gears. (Damaged Gears may cause abnormal noise during searching.)

(D1) 2 1.7 2mm

Loading Motor Slide Motor
Removing the Spindle Motor (Fig.5)
(1) Remove the three Screws (C1) to remove the Spindle Motor. CAUTION : Be careful not to damage the Gears. (Damaged Gears may cause abnormal noise during searching.)

Turn Table

(C1) 3 1.7 2.5mm

(F1) 3 1.7 9.5mm

Removing the Light Pickup (Fig.6)
(1) Remove the three Screws (F1). CAUTION: Be careful not to damage the Gears. (Damaged Gears may cause abnormal noise during searching.)

Light Pickup

7.2.2 DETAILS OF ERROR DISPLAY

Error Display

Can't REC

Details of Error

DEFECT occurred 10 times continuously during REC-PLAY. Recordable cluster became 0 since DEFECT occurred during REC-PLAY. Address is unreadable. REC state can not be set for 20 seconds even after try again. Determined as follows according to the channel status of the signals input from D-IN during REC-PAUSE or REC-PLAY. 1. Other than audio 2. Other than consumer use 3. Copy NG due to inversion of COPY bit of CD The following occurred for digital signal input from D-IN during REC-PAUSE, REC-PLAY, or CD FUNC playback 1. Digital IN PLL unlocked. 2. Locked at other than FS = 32, 44.1 and 48 kHz. No area for registering music number and character information during REC-PLAY (music name, disc number, etc.)

UTOC W ERR

Fault occurred during rewriting of UTOC rewriting, and rewriting could not be performed correctly. Inserted a disc but could not bring in FOCUS.

BLANK MD

After reading UTOC, total number of TNO and NAME characters was 0. Focus execution error, etc. occurred due to shock during RECPLAY.

DEFECT

UTOC W ERROR
UTOC read was correct but could not be rewrite it.

EEPROM ERROR

The EEPROM data are incorrect.
Detail of Mechanism Error

MECHA ERROR

Never completes EJECT. Never moves HEAD UP. Never moves HEAD DOWN. The set microcomputer and MD mechanism microcomputer are not communicating properly.

7.2.3 TROUBLESHOOTING

MD does not Operate
MD may not operate if the objective lens of the Light Pickup is soiled. Clean the objective lens, then check playback operation. If the symptom still persists, check the points according to the flowchart below. If dust or foreign matter has deposited on the Pickup Lens, the system may skip tracks or may not display TOC (content of song titles). Confirm that the lens is clean before making adjustment. If the lens is soiled, perform as follows: Switch the power of the unit OFF. Apply a small amount of isopropyl alcohol to the lens cleaning paper and clean the lens carefully. Be careful not to damage the lens. Do not touch the lens directly with your hand.
By pressing the power button on the remote control or on the receiver unit, can you turn the MD unit power ON and obtain a normal display on the MD LCD? YES Is disc loaded correctly? YES Does the system play back when the MD PLAY/PAUSE button is pressed? YES Is audio output correct? YES Is recording/playback operations correct? NO Check according to "RECORDING/PLAYBACK OPERATIONS". NO Check according to "AUDIO PLAYBACK CIRCUIT". NO Check according to "THE SYSTEM DOES NOT PLAYBACK". NO Check according to "DISC LOADING IS INCORRECT".
Check according to "POWER OF MD DOES NOT TURN ON".
Power of MD does not turn on
When disc is inserted, the power turn ON? NO Is +5 +6V supplied to Pins 15 and 16 of CN1902? YES Are pulses supplied to Pin 5 of CN1902 when the reset power turned ON? YES Is Pin 62 of IC1401 set to +3.2V? NO NO Is a pulse of 8.4672MHz applied to Pin 15 of IC1401? YES Are pulses output from Pin 34 of IC1401? YES Check CN1902 and the substrate of the MD MAIN PCB Assy. NO Check IC1401. Check IC1201. YES Check IC1401. NO Check the substrate of the MD MAIN Assy and CN1902. NO Check the substrate of the MD MAIN Assy and CN1902. YES Check the remote controller and the substrate of the MD MAIN Assy.

The system does not record from the starting address. NO Does RF waveform appear for TP1274 or Pin 1 of IC1201 when the disc is played back after recording ? NO Are recording levels of Pins 3, 26 and 39 of IC1401 and Pins 9 and 19 of CN1101 different from playback levels YES Does RF pattern appear for Pin 50 of IC1201 ? YES Check IC1251, Q1251 to 1254 and CN1252. NO Check IC1201 for defective soldering. NO Check IC1401 and CN1101 and surrounding portions. YES YES Is the disc recording enabled ?
Do input waveforms appear for Pins 18 and 20 of CN1902 during AUX input recording in Normal mode ? NO YES Check the substrate of the MD MAIN PCB Assy. NO
Are input waveforms supplied to Pins 3 to 5 of IC1701? YES Check Pins 70 to 73 of IC1201 and IC1701 and surrounding portions.
Check connection between IC1701 and CN1902.
The focus servo does not function
Is waveform of Pin 27 and 28 of IC1101 correct at the focus gain rough adjustment step in Test mode? YES Is Pin 81 of IC1201 changes from "H" to "L"? Does pulse waveform appear for Pin 82 of IC1201? YES Does pulse waveform duty of Pins 18 and 19 of IC1201 change? YES Do waveforms change at Pins 12 to 15 of IC1601? YES Do waveforms of Pins 2 and 4 of CN1101 change? YES OK NO Check pickup assy and CN1101. NO Check soldering and parts of IC1601. NO NO Check waveforms of Pins 8 and 9 of IC1201 and soldering. NO Check waveforms of Pins 9 and 10 of IC1101 and soldering.
Check soldering and parts of IC1201.
The disc motor does not rotate
Do waveforms appear for Pins 24 and 25 of IC1201 at the focus gain rough adjustment step in Test mode? YES Do waveforms appear for Pins 34 and 35 of IC1601 and Pins 1 and 2 of CN1603? YES Replace the DISC MOTOR Assy. NO Check soldering of the substrate of the DISC MOTOR ASSY of IC1601 and CN1601. NO Check soldering and parts of Pins 24 and 25 of IC1201 and the circuits around IC1201.
The tracking servo does not function
Do waveforms appear for Pins 8 and 9 of IC1601, and Pins 1 and 3 of CN1101 at the tracking gain adjustment step in Test mode? YES Replace the Light Pickup. NO Check soldering of Pins 20 and 21 of IC1201, IC1601 and CN1101.
The slide servo does not function
Does the pickup move toward the outer and inner circumference in Test mode? NO Do Pins 22 and 23 of IC1201 change when the pickup moves toward the outer and inner circumference in Test mode? YES Do Pins 28 and 29 of IC1601 and Pins 1 and 2 of CN1602 change when the pickup moves toward the outer and inner circumference in Test mode? YES Does voltage of positive (+) and negative (-) terminals of the Slide Motor change when the pickup moves toward the outer and inner circumference in Test mode? YES Replace the Slide Motor. NO Check soldering connecting to the Slide Motor. Check for disconnection. NO NO Check waveforms of Pins 22 and 23 of IC1201. Check parts around IC1201. Check soldering of IC1201. YES Check waveforms of Pins 22 and 23 of IC1201. Check parts around IC1201. Check soldering of IC1201.

9 Note : Hook Tray cap on top of loading tray and then insert the bottom three hooks. 21 Note : Attatch on the same numbers three. 12
XR-VS18 only Refer to "2.5 $M MECHANISM VCD". 6

13, 14 XR-VS77 only 16

3 XR-VS77 only 7
(1) EXTERIOR (1/2) PARTS LIST

NSP 15 NSP 20 21

16P F.F.C/30V $M Mechanism VCD Volume Knob FL Cover A FL Cover B Tray Cap Display Panel Bonnet Case Screw Pioneer Badge Screw Disc Label Jog Knob Assy Jog Knob Screw Cord Clamper Cord Stopper Push Rivet Cushion Rubber Mic Knob Screw
XDD3006 XXA3007 See Contrast table (2) See Contrast table (2) See Contrast table (2) See Contrast table (2) See Contrast table (2) See Contrast table (2) BPZ30P100FZK AZN3049 VBZ30P080FZK XAX3127 See Contrast table (2) See Contrast table (2) BCZ30P060FZK See Contrast table (2) See Contrast table (2) See Contrast table (2) XEB3002 See Contrast table (2) VBT30P080FZK

Symbol and Description

Volume Knob FL Cover A FL Cover B Tray Cap Display Panel Bonnet Case Jog Knob Assy Jog Knob Cord Clamper Cord Stopper

XR-VS77 /DBDXJ

XAA3005 XAK3026 XAK3036 XZN3047 XAK3045 XZN3039 XXG3024 Not used RNH-184 Not used Not used XAB3004
XAA3005 XAK3026 XAK3036 XZN3047 XAK3045 XZN3039 XXG3024 Not used RNH-184 Not used Not used XAB3004 XAA3007 Not used Not used XZN3048 XAK3052 XZN3045 Not used XAA3009 Not used DNF1128 AEC7138 XAB3006
XAA3007 Not used Not used XZN3048 XAK3052 XZN3045 Not used XAA3009 Not used DNF1128 AEC7138 XAB3006
18 Push Rivet 20 Mic Knob

2.3 EXTERIOR (2/2)

XR-VS77 only 15

24 XR-VS77 only 24 14

32 XR-VSonly XR-VSonly 4

DLXJ/NC Type only

26 Except DLXJ/NC Type XR-VS55 only XR-VS77 only
Refer to "2.4 FRONT PANEL SECTION".
(1) EXTERIOR (2/2) PARTS LIST
AF Assy SECONDARY Assy PRIMARY Assy FM/AM TUNER MODULE T1 Power Transformer FU2, FU3 Fuse FU1 Fuse Chassis PCB Bracket Heat Sink Wire Clip Rear Panel
See Contrast table (2) See Contrast table (2) XWZ3048 AXQ7065 See Contrast table (2) See Contrast table (2) See Contrast table (2) XNA3001

NSP NSP 32 33

SUPPORT Assy Screw Screw Binder Screw Caution Label Name Label ICP Label ICP Label SUB TRANS Assy Fuse Card Fuse Card Locking Spacer Card Spacer
XNP3008 VBZ30P080FZK ASZ40P060FMC ZCA-SKB90BK BPZ30P100FZK See Contrast table (2) See Contrast table (2) See Contrast table (2) See Contrast table (2) XWZ3049 See Contrast table (2) See Contrast table (2) See Contrast table (2) See Contrast table (2)

XNG3006 See Contrast table (2) XEC3002 See Contrast table (2)

NSP NSP

XWZ3102 XWZ3103 XTS3015 AEK1057 Not used AEK1060 Not used XNH3002 XNC3006 PRW1018 Not used XAX3120 XAX3121 AAX2357 AAX7099 Not used Not used XWZ3068 XWZ3069 XTS3012 Not used AEK1056 Not used AEK1059 XNH3003 XNC3008 Not used XAL3023 Not used Not used Not used Not used XEC3009 XEC3008

NSP 31

AF Assy SECONDARY Assy T1 Power Transformer FU2, FU3 Fuse (T2A) FU2, FU3 Fuse (T1.6A) FU1 Fuse (T4A) FU1 Fuse (T3.15A) Heat Sink Rear Panel Caution Label Name Label ICP Label ICP Label Fuse Card Fuse Card
XWZ3102 XWZ3103 XTS3015 AEK1057 Not used AEK1060 Not used XNH3002 XNC3006 Not used XAL3008 XAX3120 XAX3121 AAX2357 AAX7099 Not used Not used
XWZ3068 XWZ3069 XTS3012 Not used AEK1056 Not used AEK1059 XNH3003 XNC3008 PRW1018 Not used Not used Not used Not used Not used XEC3009 XEC3008
32 Locking Spacer 33 Card Spacer

2.4 FRONT PANEL SECTION

23 XR-VS55 only 34 XR-VS77 only XR-VS77 only 34(2/2) XR-VS55 only 38 XR-VS77 only 25 17
XR-VS77 only XR-VS55 only 25 34(1/2) 35

5 XR-VS55 only 32

12 Refer to "2.7 and 2.8 MECHANISM UNIT".
(1) FRONT PANEL SECTION PARTS LIST
DISPLAY Assy CD SW LED Assy Connector Assy 2P Connector Assy 3P Cord With Plug Flexible Cable Flexible Cable 40P Connector Assy 3P Connector Assy 5P GND Plate A Mechanism Unit Door Spring L Door Spring R Latch Spring L Latch Spring R Screw Latch Mold L Latch Mold R GND Plate B
See Contrast table (2) See Contrast table (2)
Damper Assy Front Panel Assy Function Button CD Button CD Lens Deck Lens L Deck Lens R Jog Lens Door Pocket L Door Pocket R Front Panel Sub Panel A Power Button Play Button S.C. Button TIMER Button Binder
AXA7052 See Contrast table (2) See Contrast table (2) See Contrast table (2) See Contrast table (2) XZN3035 XZN3036 See Contrast table (2) See Contrast table (2) See Contrast table (2) See Contrast table (2) See Contrast table (2) See Contrast table (2) See Contrast table (2) See Contrast table (2) See Contrast table (2) See Contrast table (2)
NSP See Contrast table (2) See Contrast table (2) DE007VE0 See Contrast table (2) XDD3005 See Contrast table (2) See Contrast table (2) XNG3004 See Contrast table (2) XBH3001 XBH3002 ABH7130 ABH7131 BPZ30P100FZK XMR3001 XMR3002 XNG3005

1 Mech.

MECHANISM UNIT PARTS LIST
Plate HD BLK (Mech. ) Plate HD BLK (Mech. ) Motor Main BLK (Mech. only) PCB Control BLK Clutch Assy BLK Main Belt Joint Belt 113 (Mech. only) Clutch Assy BLK Roller Pinch BLK R Roller Pinch BLK L F/R Belt Plate Base BLK Plate Base BLK
F513-811 F513-819 F525-324 F567-621 F522-037 FF17G-31 FF19D-21 F522-045 F514-129 F514-130 FF18W-12 F512-127 F512-128
2.8 MECHANISM UNIT (XR-VS55)

Mech. Only 2

9 Mech. Mech. Only Mech. Only

13 Mech. Only Mech.

Plate HD BLK (Mech. ) Plate HD BLK (Mech. ) Motor Main BLK (Mech. only) PCB Control BLK Clutch Assy BLK Main Belt Clutch Assy BLK (Mech. ) Clutch Assy BLK (Mech. )
F513-811 F513-825 F525-324 F567-622 F522-037 FF17G-31 F522-045 F522-038
Roller Pinch BLK R (Mech. ) F514-129 Roller Pinch BLK R (Mech. ) F514-131 Roller Pinch BLK L (Mech. only) F514-130 F/R Belt FF18W-12 Plate Base BLK (Mech. only) F512-127 Plate Base BLK (Mech. only) F512-128

3. SCHEMATIC DIAGRAM

3.1 OVERALL WIRING DIAGRAM

CD SW LED ASSY (XWZ3086)

XR-VS77 ONLY
FM/AM TUNER MODULE (AXQ7065)

CN6201

E E 1/3, E 2/3, E 3/3
AF ASSY (XR-VS77 : XWZ3102) (XR-VS55 : XWZ3068)

VCD SURVO ASSY (XWX3003)

SW ASSY MOTOR (XWZ3081) ASSY (XWZ3080)
SERVO MECHANISM ASSY (AXA7039)

TRADE ASSY (XWZ3082)

Note : When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST".
DISPLAY ASSY (XR-VS77 : XWZ3104) (XR-VS55 : XWZ3070)

AEK7071

B XR-VS77 ONLY
SECONDARY ASSY (XR-VS77 : XWZ3103) (XR-VS55 : XWZ3069)

PRIMARY ASSY (XWZ3048)

SUB TRANS ASSY (XWZ3049)

3.2 FM/AM TUNER MODULE

MIX AMP RF AMP

1T378A

BUFFER

IF AMP

FM +B SW
MW RF TUNING BLOCK AKX7041

AF AMP

REGULATOR

CN3051

XR-VS77, XR-VS55 3.3 VCD SURVO, MOTOR, SW and TRADE ASSEMBLIES

B 1/2 DA DB

SW ASSY (XWZ3081)

B 1/2 (XWX3003)

Note: The encircled numbers denote measuring point in the schematic diagram.

VCD SURVO ASSY (1/2)

SIGNAL ROUTE
CN1003- Pin 3 : PLAY MODE (RF)
H : 500nsec/div 2.0Vp-p VREF

2 CN1003- Pin 2 :

12k(XR-VS77) 15k(XR-VS55)

SPEAKER

820(XR-VS77) 1.5k(XR-VS55)
3300/50(XR-VS77) 2200/50(XR-VS55)
2SA965(XR-VS77) 2SA1837(XR-VS55) IC11, IC12 AEK7021(XR-VS77) AEK7019(XR-VS55)
IC21, IC22 AEK7046(XR-VS77) AEK7053(XR-VS55) 100/100(XR-VS77) 220/63(XR-VS55) 5.6k(XR-VS77) 2.2k(XR-VS55)

T1 POWER TRANSFORMER

E 3/3 F
3.7 PRIMARY and SUB TRANS ASSEMBLIES

H3 H4 AKR7001

POWER TRANSFORMER XR-VS77 : AEK1057 (T2A) XR-VS55 : AEK1056 (T1.6A)

E 3/3 CN81

10000pF/AC250V
NOTE FOR FUSE REPLACEMENT CAUTION - FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE WITH SAME TYPE AND RATINGS ONLY.
XR-VS77 : AEK1060 (T4A) XR-VS55 : AEK1059 (T3.15A)
XR-VS77, XR-VS55 3.8 DISPLAY and CD SW LED ASSEMBLIES

SLP6118C51H

XR-VS77 ONLY XR-VS55 ONLY XR-VS77 ONLY

1k(XR-VS77) 0(XR-VS55)

V5621 FL TUBE XAV3004(XR-VS77) XAV3003(XR-VS55)

CN5501 52045-4045

E 2/3 CN5101
HLEM19S-1(XR-VS77) HLEM17S-1(XR-VS55)

DECK MECH

SLP9118C51H
XR-VS77 ONLY XR-VS77 ONLY

1SS183

DISPLAY ASSY S5911 : DISPLAY S5912 : TIMER S5913 : ENTER S5914 : P. BASS S5915 : ZOOM SURROUND S5916 : BASS BLASTER S5917 : EQUALIZER S5918 : PRESET S5919 : STANDBY/ON S5920 : TUNING - S5921 : TUNING + S5922 : STOP S5923 : PLAY/PAUSE
S5924 : REC/STOP S5925 : FREQ/STATION S5926 : DOLBY NR ON/OFF S5927 : ASES/COPY S5928 : AUX S5929 : TAPE / S5930 : TUNER/BAND S5931 : CD S5932 : DISC 1 SELECT S5933 : DISC 2 SELECT S5934 : DISC 3 SELECT S5935 : DISC CHANGE S5936 : OPEN/CLOSE
S5937 : OPEN/CLOSE S5938 : DISC CHANGE S5939 : DISC 3 SELECT S5940 : DISC 2 SELECT S5941 : DISC 1 SELECT
4. PCB CONNECTION DIAGRAM

NOTE FOR PCB DIAGRAMS :

1. Part numbers in PCB diagrams match those in the schematic diagrams. 2. A comparison between the main parts of PCB and schematic diagrams is shown below.
Symbol In PCB Diagrams Symbol In Schematic Diagrams B C E B C E Part Name
3. The parts mounted on this PCB include all necessary parts for several destinations. For further information for respective destinations, be sure to check with the schematic diagram. 4. View point of PCB diagrams.

Connector

Transistor

Capacitor

B C E B B C E D D G S G S D G S C E B C E

SIDE A

Transistor with resistor

Field effect transistor

P.C.Board

Chip Part

SIDE B

Resistor array

3-terminal regulator

4.1 FM/AM TUNER MODULE

E CN3051

A FM/AM TUNER MODULE

VR6201 Q6204 Q6203

IC6201

Q6201 Q6202 IC6202
Q6301 Q6303 Q6302 Q6403 Q6214 Q6402 Q6404 Q6205

Q6304 Q6306

(ANP7159-B)
XR-VS77, XR-VS55 4.2 VCD SURVO, MOTOR, SW and TRADE ASSEMBLIES

TRADE ASSY

SERVO MECHANISM ASSY

SW ASSY

LOADING MOTOR

MOTOR ASSY

B (XNP3011-A)

VCD SURVO ASSY

E CN1053
Q1351 Q1352 Q1353 Q1354 IC1001 IC1401 IC1301

IC1201 Q1101 IC1701

PICKUP ASSY

IC1501 IC1752

(XNP3010-A)

B C DA DB

B VCD SURVO ASSY

IC1754 IC1755

IC1101 IC1751
XR-VS77, XR-VS55 4.3 AF ASSY

MECHANISM UNIT

A CN6201

AF ASSY

VR2302 VR230 VR2802 VR280

Q71 Q31 IC32 IC51

Q2803 Q2804 Q2801 IC42 Q3352 Q3351

B CN1004

I CN5501
MECHANISM UNIT MECHANISM UNIT
(XNP3008-C) D VR2302 VR2301 VR2802 VRIC3301 VR2303 IC2301 VR2306 Q52 Q51

(XNP3008-C)

IC5891 Q53 IC5892 Q2802 Q2306 Q2105

Q3608 Q3601

IC2101 Q2301 Q2204 Q2203 Q2 Q3603 Q2302 IC2201 IC3301 Q3314 Q3313 Q3312 Q331
IC5691 IC2101 Q2201 Q2202 Q5751 Q5752 Q2204 Q2203 Q2103 IC5751 IC3951 IC2201 Q3353 Q3354 Q2805 Q2807 IC42 IC51 Q3312 Q3311 Q3351 Q3352
IC3001 IC3101 IC3103 Q3101 Q3102 Q31
XR-VS77, XR-VS55 4.4 SECONDARY and PRIMARY ASSEMBLIES

SECONDARY ASSY

IC11 IC31 IC12 IC41 IC21 IC22

POWER TRANSFORMER (T1)

(XNP3012-B)

G PRIMARY ASSY

XR-VS77, XR-VS55 4.5 SUB TRANS ASSY

H SUB TRANS ASSY

E CN81

NEUTRAL

XR-VS77, XR-VS55 4.6 DISPLAY and CD SW LED ASSEMBLIES

I DISPLAY

CN5101

CD SW LED ASSY

(XNP3012-B) D

Q2903 Q2901 Q2906

Q2908 Q2907 B Q5605 IC5601

IC5501 Q2910 Q2911

Q5801 Q5502 Q5501 Q5821 IC5631

Q5601 Q5604 IC3901

IC3931
Mark No. Description Part No. Mark No. Description Part No.

5. PCB PARTS LIST

Parts marked by "NSP" and can not be supplied. The mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation. When ordering resistors, first convert resistance values into code form as shown in the following examples.

Ex.1 When there are 2 effective digits (any digit apart from 0), such as 560 ohm and 47k ohm (tolerance is shown by J=5%, and K=10%). 561... RD1/4PU 1 J 560 473... RD1/4PU 3 J 47k 0.5 R50... RN2H R K 1 1R0... RS1P 1 R 0 K Ex.2 When there are 3 effective digits (such as in high precision metal film resistors). 5621.. RN1/4PC F 5.62k
LIST OF HOLE PCB ASSEMBLIES
Part No. Mark Symbol and Description XR-VS77 DBDXJ, DLXJ/NC
FM/AM TUNER MODULE VCD SURBO ASSY NSP $M MECHA PCB ASSY MOTOR ASSY SW ASSY TRADE ASSY MAIN ASSY AF ASSY SECONDARY ASSY COMPLEX ASSY PRIMARY ASSY SUB TRANS ASSY DISPLAY ASSY CD SW LED ASSY AXQ7065 XWX3003 XWX3004 XWZ3080 XWZ3081 XWZ3082 XWM3057 XWZ3102 XWZ3103 XWM3058 XWZ3048 XWZ3049 XWZ3104 XWZ3086

XR-VS55 DBDXJ, DLXJ/NC

AXQ7065 XWX3003 XWX3004 XWZ3080 XWZ3081 XWZ3082 XWM3040 XWZ3068 XWZ3069 XWM3041 XWZ3048 XWZ3049 XWZ3070 Not used
ATF155 ATF7008 ATF7011 LAU2R2J

FM/AM TUNER MODULE

IC6201 IC6202 Q6402 Q6203 Q6201, Q6202 Q6214, Q6403 Q6404 Q6401 Q6204 Q6205 D6202 D6401, D6402 LA1832ML LC72131MD 2SC2223 2SC2705 2SC2712 2SC2714 2SK302 3SK194 DTA124ES DTC124EK 1SS254 1T378A

SEMICONDUCTORS

F6401 FM BAND PASS FILTER F6206 FM CERAMIC DISCRIMINATOR F6202 AM CERAMIC FILTER L6206, L6208, L6403

TRANSFORMERS

T6201 T6401 AM IF TRANS. FM CONNECT TRANS. ATB7008 ATE7002

CAPACITORS

C6208 C6212, C6274, C6275, C6408 C6412 C6221, C6222, C6416 C6271 C6415 C6406 C6401, C6419 C6407 C6410 CCSQCH100D50 CCSQCH101J50 CCSQCH102J50 CCSQCH150J50 CCSQCH200J50 CCSQCH330J50 CCSQCH331J50 CCSQCH5R0C50 CCSQCK1R0C50 CCSQCK2R0C50

COILS AND FILTERS

L6404 L6401 L6402 F6204 F6203 FM COIL FM RF COIL FM RF COIL FM CERAMIC FILTER FM CERAMIC FILTER ATC1003 ATC1020 ATC1021 ATF107 ATF119
Mark No. Description Part No.
CCSQRH180J50 CCSQRH8R0D50 CCSQTH150J50 CEAL1R0M50 CEAL470M16 CEAT100M50 CEAT101M16 CEAT1R0M50 CEAT220M25 CEAT2R2M50 CEAT3R3M50 CEAT470M10 CEAT470M16 CEAT4R7M50 CEJA470M16 CFTLA103J50 CKSQYB102K50 CKSQYB103K50 CKSQYB103K50 CKSQYB103K50 CKSQYB153K50 CKSQYB223K50 CKSQYB472K50 CKSQYB473K50 CKSQYB821K50 CKSQYF103Z50 CKSQYF223Z50 CKSQYF473Z50
DTF1064 DTF1066 DTF1067 DTF1069 LCTB1R8K2125 LCTB2R7K2125 LFA100J LFA220J
C6413 C6414 C6405 C6234, C6235 C6245 C6224 C6243 C6231 C6227 C6214, C6236 C6262 C6219 C6244 C6249, C6250, C6265, C6266 C6258 C6215 C6211, C6254, C6403, C6417 C6201, C6205, C6210, C6237, C6276 C6278, C6280, C6281, C6402, C6409 C6418 C6251, C6252 C6203, C6259 C6228 C6209 C6230 C6218, C6223, C6255 C6220, C6226, C6242, C6256 C6225

AF ASSY (XWZ3068)

IC2101, IC3951, IC5691 IC5891 IC2301 IC3001 IC42, IC51 IC32 IC3301 Q3354, Q3601, Q3621 Q71 Q51, Q52 Q2803, Q2804 Q2102, Q2201, Q2202, Q3353, Q3603 Q3605Q3608, Q53 Q3081 Q31 Q2203, Q2204, Q2805, Q3311, Q3312 Q2301, Q2302 Q3313 Q2104, Q2105, Q3314 Q2103, Q2306 Q3351 Q3352 D3301, D3302 D2301D2306, D3351D3354 D3361, D3362, D3601, D3603, D3604 D3621, D3622, D3625, D3626, D5891 D73 D2102, D2103, D3051 D3355, D3356 D3357, D3358 D3083 D35, D36 D3359, D3360 D74 D3363, D3364 D2001 D48, D53 D75 D72, D76 BA4558FHT BU4094BCF HA12211NT LC75394NED NJM7805FA NJM7812FA STK407050B 2SA1037K 2SA1837 2SB1237X 2SC1815 2SC2412K 2SC2412K 2SD1858X 2SD2012 2SD2114K 2SK368 DTA124EK DTC124EK DTC143EK IRFI9Z34G IRFIZ34G 1SR139100 1SS133 1SS133 1SS133 1SS133 1SS355 20E2FC MTZJ10C MTZJ11C MTZJ15C MTZJ18B MTZJ33C MTZJ39C MTZJ6.2A MTZJ6.8C MTZJ8.2B S5688G
R2812 R2809 R54 R52 R72 R3333, R3334 R3353, R3354 R73 R3081 R3317, R3318 R3991, R3992 R3601, R3602 VR2303VR2306 (10k) VR2301, VR2302 (100k) VR2801, VR2802 (220k) Other Resistors RD1/2LMF270J RD1/2LMF4R7J RD1/2PM181J RD1/2PM221J RD1/2PM562J RD1/4LMF100J RD1/4PU101J RD1/4PU103J RD1/4PU221J RD1/4PU683J RS2LMF331J RS3LMFR22J VCP1156 VCP1162 VCP1164 RS1/10S J
L3331, L3332 L2801 L3991 L2301, L2302 ATH133 ATX7002 LAU4R7J LTA822J
CN1053 CN5101 CN81 CN3331 15P CABLE HOLDER 16P FFC CONNECTOR 40P FFC CONNECTOR

4P JUMPER CONNECTOR

RY521470410 AKE7001 B2BPHKS B3BPHKR B3BPHKS KM200IB14 VKB1060 XKN3001

ASR7008

C2303, C2304 (270pF) C2335C2338 C2301, C2302 C3047C3049 C3319, C3320 C3317, C3318 C3621 C3313, C3314 C73 C2810, C3045, C3046, C3081, C3091 ACG7024 CCCCH270J50 CCSQCH100D50 CCSQCH101J50 CCSQCH3R0C50 CEANP220M35 CEANP2R2M2A CEANP2R2M50 CEAT100M2A CEAT100M50

4P SPEAKER TERMINAL

CN2302 KR CONNECTOR CN2303 KR CONNECTOR CN2301 KR CONNECTOR 3P CN3051 14P PLUG JA3001, JA3441 2P PIN JACK CN3991 HEADPHONE JACK
CEAT100M50 CEAT100M50 CEAT101M16 CEAT101M50 CEAT1R0M50 CEAT1R0M50 CEAT220M50 CEAT220M50 CEAT221M16 CEAT221M63 CEAT222M25 CEAT222M35 CEAT2R2M50 CEAT2R2M50 CEAT2R2M50 CEAT330M16 CEATR10M50 CEATR47M50 CFTLA334J50 CFTLA474J50 CKSQYB102K50 CKSQYB103K50 CKSQYB103K50 CKSQYB104K25 CKSQYB122K50 CKSQYB222K50 CKSQYB273K50 CKSQYB332K50 CKSQYB392K50 CKSQYB472K50 CKSQYB681K50 CKSQYB682K50 CKSQYB683K25 CKSQYF104Z50 CQHA822J2A CQMBA223J50

CN3991

HEADPHONE JACK

XKN3001

C33, C35, C3602, C3953, C43 C52 C2002, C2316 C3303, C3304 C2312, C2313, C32, C3311, C3312 C42 C2106, C2214, C2215, C2321, C2322 C53, C72 C2001, C3601 C71 C41 C31 C2212, C2213, C2319, C2320 C3005C3010, C3015C3018 C3037C3040, C3082 C2804, C2805 C3021, C3022 C3041, C3042, C3325 C3027, C3028 C3023, C3024 C2307, C2308 C1992, C1993, C2315, C2317, C2318 C3053, C3098 C3099, C5891 C3033, C3034 C3315, C3316 C2323, C2326, C3029, C3030 C2808, C2809 C2333, C2334 C2807 C2331, C2332, C3013, C3014 C3019, C3020, C3031, C3032 C3025, C3026 C3331C3333 C2801 C2806

Playback Adjustment (Decks I and II)
(1) Head Azimuth Adjustment (2) Playback Level Adjustment
Recording Adjustment (Deck I)
(1) Bias Oscillation Frequency Adjustment (2) Recording Bias Adjustment (3) Recording Level Adjustment. (4) ALC Operation Check
* As the reference recording level is 250nwb/m for STD-331E, the recording level will be higher by 4 dB for STD-331B (160nwb/m). When adjusting, pay carefull attention to the type of tape used.
Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation. DOLBY and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation.

0 dB 30s 315Hz

0 dB: 315 Hz, 250 nwb/m 30s 6.3kHz 30s 10kHz 30s 315Hz 10s.... 10s 20 dB 12.5 6.14kHz kHz 10kHz 8kHz kHz 4kHz 2kHz 1kHz Hz Hz Hz 63Hz 40Hz 10s
Fig. 4 STD-331E Test Tape

Playback Adjustment

(1) Head Azimuth Adjustment
Step 1 Mode PLAY Input Signal/ Test Tape STD-331E test tape (Playback: 10kHz, -20dB)
Do not switch between forward and reverse operation with the screwdriver inserted.
Adjusting Points Deck I Deck II Head azimuth adjustment screw (Fig. 5) Measurement Points Adjustment Value Remarks After adjustment, apply silicon bond to the head azimuth adjustment screw. TAPE TEST Max. playback POINT (L, Rch) signal level (AF Assy)
(2) Playback Level Adjustment
Step Mode Input Signal/ Test Tape
Since this adjustment determines playback Dolby NR level, perform it carefully.
Adjusting Points Deck I Deck II Measurement Points Adjustment Value Remarks STD-331E test tape (Playback: 315Hz,0dB) VR2303(Lch) VR2304(Rch) TAPE TEST POINT (L, Rch) VR2305(Lch) (AF Assy) VR2306(Rch)

3.7dBV

PLAY BACK

250 3dB 10k 3dB 12.5k

RECORDING
REV Azimuth Adjustment Screw
FWD Azimuth Adjustment Screw
Fig. 5 Head Azimuth Adjustment Screw
Fig. 6 Frequency Characteristics

Recording Adjustment

(1) Bias Oscillation Frequency Adjustment
Step Mode Input Signal/ Test Tape Load the STD-632 test tape and set the recording mode. Adjusting Points Deck II DECK I L2801 (AF Assy) Measurement Points Between A point in Fig.7 and GND. Adjustment Value Oscillation frequency to be 105.0kHz 2kHz. Remarks If the REC/STOP button for four seconds while the power is in STAND BY mode, the frequency will decrease 2 to 3 kHz.
(2) Recording Bias Adjustment

Step Mode

Since this adjustment affects recording bias, prevent distortion from increasing due to underbias.
Input Signal/Test Tape Input a 315Hz signal to the AUX terminal and set the input selector to AUX. Adjusting Points Deck II DECK I Deck II DECK I Input signal level VR2801(Lch) VR2802(Rch) Measurement Points TAPE TEST POINT (L, Rch) (AF Assy) TAPE TEST POINT (L, Rch) (AF Assy) Adjustment Value Remarks

HA12211NT (AF ASSY : IC2301)
REC Equalizer and PB Equalizer System IC

Block Diagram

REC IN

TAPE(R) TAPE(L) RECSEL

from logic

AUX(R)

to Dolby

PBOUT(L) PBOUT(R)

AUX(L)

PBCAL A(R) PBCAL

B A 139k

A B 10k

2.7k 2.26k 1.12k

RECOUT(L)

RECOUT(R)

RECRETURN

PBIN 5
No. 9 Pin Name VCC RECOUT (L) RECOUT (R) PB-IN B (L) PB-IN B (R) VREF PB-IN A (L) PB-IN A (R) VCC pin REC-EQ output Function No. Pin Name Function Feed back input for gain adjustment PB output 16 PB-Cal B (R) 17 PB-Cal B (L) 18 PB OUT (R) 19 PB OUT (L) 20 A/B 21 HSP 22 Acr 23 Bcr 24 REC-SEL 25 IREF 26 AUX (R) 27 AUX (L) 28 TAPE (R) 29 TAPE (L) 30 GND GND pin REC-EQ input Mode control input Equalizer reference current input Mode control input
REC-RETURN REC return PB B deck input Reference voltage PB A deck input PB EQ feed back NAB output Feed back input for gain adjustment
10 PB-NF (L) 11 PB-NF (R) 12 PB-EQ (L) 13 PB-EQ (R) 14 PB-Cal A (L) 15 PB-Cal A (R)
LC75394NED (AF ASSY : IC3001)

Electrical Volume IC

Pin Name
LF4C3 LF4C2 LF4C1 LF3C3 LF3C2 LF3C1 LF2C3 LF2C2 LF2C1 LF1C3 LF1C2 LF1C1 LTIN LSELO LINVIN1 L4 L3 NC L2 NC L1 VSS CL DI CE VSS AVSS R1 NC R2 NC R3

Function

F4 band control block of L ch External capacitor connection pin
R4 RINVIN1 RSELO RTIN RF1C1 RF1C2 RF1C3 RF2C1 RF2C2 RF2C3 RF3C1 RF3C2 RF3C3 RF4C1 RF4C2 RF4C3 RF5 RVref RINVIN2 RTOUT RVRIN NC RVROUT Vref VDD LVROUT NC LVRIN LTOUT LINVIN2 LVref LF5 F5 band control block Signal input
Inverting input of OP amp. for input gain setting Input selector output Tone control input pin that is drived with low-impedance F1 band control block of R ch External capacitor connection pin
F3 band control block of L ch External capacitor connection pin
F2 band control block of L ch External capacitor connection pin
F2 band control block of R ch External capacitor connection pin
F1 band control block of L ch External capacitor connection pin Tone control input pin that is drived with low-impedance Input selector output Inverting input of OP amp. for input gain setting Signal input Non connection Signal input Non connection Signal input Ground of internal logic system Serial data and clock input for control Chip enable pin H: Enable data transfer

12 ADDRESS DECODER ADDRESS BUFFER 21 OUTPUT BUFFER 13 D7 D6 D5 D4 D3 D2 D1 D0 MEMORY MATRIX (131,072 x 8bit)

COLUMN SELECTOR

CE BUFFER

TIMING GENERATOR

SENSE AMP

OE OE1/OE1 /D.C.

OE BUFFER 32 Vcc 16 GND
LC78632 (VCD ASSY : IC1201)
Compact Disc Signal Processing and Servo control for Video Compact Disc player.
No. Pin symbol VPDO PD02 PD01 AVSS FR AVDD ISET TAI EFMO VSS EFMIN TEST1 CLV+ CLVV/P TEST2 TEST3 P4 HFL TES PCK FSEQ TOFF TGL THLD TEST4 VDD JP+ JPSLD+ SLDEMPH P5 LRCKO DFOLO DACKO CONT1 P0/DFCK P1/DFIN P2 I/O O O O Description Test output pin. Double-speed and quad-speed mode playback PLL charge pump output. Mlust be left open if unused. Nomal-speed pit c1ock playback PLL charge pump output pin. Analog system ground pin. Normally to be connected to 0V. Resistor connection pin to set the built-in VCO frequency range. Analog system ground pin. Resistor connection pin to set PD01 and PD02 output current. Test input pin. A pull-down resister is built-in. Mlust be connected to VSS. EFM signal output pin. Digital system ground pin. Normal be connected to 0V. EFM signal input pin. Test input pin. A pull-down resister is built-in. Must be connected to VSS.

I O I I O O

Spindle servo control output pin. CLV+ outputs a high-level for acceleration, and CLV-outputs a high level for deceleration. Rough servo/phase control automatic switching monitor output pin. A high-level output indicates rough servo, O and a low-level output indicates phase control. I Test input pin. A pull-down resister is built-in. Must be connected to VSS. I Test input pin. A pull-down resister is built-in. Must be connected to VSS. I/0 port, which should either be set to the output and opened or set to the input and connected to VOD or VSS I/O when not used. I Track detection signal input pin. This is a Schmitt input. I Tracking error signal input pin. This is a Schmitt input. O EFM data plyback bit clock monitor pin. 0utput pin 4.3218MHz when the phase is locked. Sync signal detection output pin. "H" when the sync signal detected from the EFM signal agrees with the O internally generated sync signal. O Tracking off output pin. O Tracking gain switching output pin. Increase the gain when low. Tracking hold output. I Test input pin. A pull-down resister is built-in. Must be connected to VSS. Digital system power supply pin. O Tmck jump output pin. JP+ output a high level both for acceleration during out jumps and for deceleration durng inward direction jumps. Jp-outputs a high level both for acceleration during inward direction jumps and for O deceleration during outward jumps. O Sled output. This pin can be set to 1 of 4 levels by commands sent from the system control microprocessor. O O De-emphasis monitor pin. A high level indicates playback of a De-emphasis disk. I/O port, which should either be set to the output and opened or set to the input and connected to VDD or VSS I/O when not used. O Digital filter outputs : LR clock output pin. O Digital filter outputs : LR data output pin. The digital filter can be turned with the DFOFF command. O Digital filter outputs : But clock output pin. O Output port. I/0 port or DF bit clock input pin, which should either be set to the output and opened or set to the input and I/O connected to VDD or VSS when not used. I/O port or DF data input pin, which should either be set to the output and opened or set to the input and I/O connected to VDD or VSS when not used. I/O port, which also acts as an input for On/Off changeover of the de-emphasis filter in the anti-shock mode and I/O should either be set to the output and opened or set to the input and connected to VDD or VSS when not used.

No. 79 80

Pin symbol P3/DFLR LRSY CK2 R0MXA C2F MUTEL LVDD LCHP LCHN LVSS XVSS XOUT XIN XVDD RVSS RCHN RCHP RVDD MUTER SBSY EFLG PW SFSY SBCK DOUT FSX WRQ RWC SQOUT COIN CQCK RES TESTF CONT2 16M 4.2M TEST5 CS DEFI VCOC
Description Port output or DFclock input pin, which should either be set to the output and opened or set to the input and I/0 connected to VDD or VSS when not used. O ROMXA : LR clock output pin. O ROMXA : Bit clock output pin. The polarity can be inverted with the CK2CON command. ROMXA : Interpolated data output pin. Data that has not been interpolated can be output by issuing the ROMXA O command. O ROMXA : C2 flag output pin. O 1-bit DAC : Left channel mute output pin. 1-bit DAC : Left channel power supply pin. O 1-bit DAC : Left channel P output pin. O 1-bit DAC : Left channel N output pin. 1-bit DAC : Left channel ground pin. Must be connected to 0V. Crystal oscillator ground. Must be connected to 0V. Connections for a 16.9344MHz crystal oscillator element pin. Use a 33.8688MHz crystal oscillator for quadO speed playback. Spindle servo control output pin. CLV+outputs a high-level for acceleration, and CLV-outputs a high level for I deceleration. Crystal oscillator power supply pin. 1-bit DAC : Right channel ground pin. Must be connected to 0V. O 1-bit DAC : Right channel N output pin. O 1-bit DAC : Right channel P output pin. 1-bit DAC : Right channel power supply pin. O 1-bit DAC : Right channel mute output pin. O Subcode clock synchronization signal output pin. O Cl and C2 error correction state monitor. O Subcode P,Q,R,S,T,U and W output pin. O Subcode frame synchronization signal output pin. This signal falls when the subcode are in standby stase. I Subcode readout clock input pin. This is a Schmitt input. This pin must be connected to 0V if unused. O Digital output pin. O output pin for the 7.35kHz synchronization signal divided from the crystal oscillator. O Subcode Q output standby output pin. I Read/write control input pin. O Subcode Q output pin. I Command input pin from control microprocessor. Input for both the commad input acquisition clock and the SQOUT pin subcode readout clock input pin. This is I Schmitt input. I Chip reset input pin. This pin must be set low briefly after power is first applied. O Test output pin. O Output port. O 16.9344MHz output pin. O 4.2336MHz output pin. I Test input pin. A pull-down resistor is built-in. Must be connected to 0V. Chip select input pin.A pull-down resistor is built-in. Be sure to connect to VSS to select DSP when not I controlled. I Defect detection signal input pin. Be sure to use this pin. If not. connect the pin to VSS. I Test input pin. Must be connected to VSS.

~ ! @ # $

STANDBY indicator STANDBY/ON switch TUNING PREV button TUNING + NEXT button STOP/RETURN (7) button

% ^ & * ( ) _ +

PLAY/PAUSE SELECT 2 3, MEMORY button REC/STOP button FREQ/STATION button ASES/COPY button TAPE I Eject button (0) TAPE I cassette door Volume control (VOLUME) DISPLAY button TIMER/CLOCK ADJ button ENTER button SOUND MORPHING JOG dial PHONES jack (Headphones) TAPE II Eject button (0) TAPE II cassette door PRESET button EQUALIZER button ZOOM SURROUND button P.BASS (DEMO) button MIC MAIN SUB jacks MIC LEVEL knob ECHO LEVEL knob

7 XR-VS77

0 = ~ ! @ # $ % _ +

PREV NEXT RETURN SELECT

^ & * ) (
1 DISC-1 indicator 2 DISC-2 indicator 3 DISC-3 indicator 4 DISC-1 select button 5 DISC-2 select button 6 DISC-3 select button 7 DISC CHANGE button 8 OPEN/CLOSE button 9 Display 0 CD disc tray - CD Function button & indicator = TUNER/BAND Function button & indicator ~ TAPE I/II Function button & indicator ! AUX Function button & indicator @ STANDBY indicator # STANDBY/ON switch $ TUNING PREV button % TUNING + NEXT button ^ STOP/RETURN (7) button & PLAY/PAUSE SELECT , MEMORY button * REC/STOP button ( FREQ/STATION button ) ASES/COPY button

_ +

TAPE I Eject button (0) TAPE I cassette door Dolby* NR ON/OFF button Volume control (VOLUME) DISPLAY button ENTER button SOUND MORPHING JOG dial TIMER/CLOCK ADJ button PHONES jack (Headphones) TAPE II Eject button (0) TAPE II cassette door BASS BLASTER button & indicator PRESET button & indicator EQUALIZER button & indicator ZOOM SURROUND button & indicator P.BASS (DEMO) button & indicator TIMER indicator
MIC MAIN SUB jacks MIC LEVEL knob ECHO LEVEL knob
* Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation. DOLBY and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation.

7 For model XR-VS55

~ ! # = @

7 For model XR-VS77

6 $ = ~ 9 ^

Display section

= ~ ! @ #
Indicates audio level. Lights when the selected function is CD. Lights when the selected function is TAPE. Indicates CD and TAPE play status. Displays timer function indications. Indicates CD function status. Lights during recording. Lights during ASES operation. Lights during Sleep Timer operation. Indicates tuner operation status. Displays a wide range of operation status indications. Indicates Video CD function status. Indicates Karaoke function status. Lights when BEAT CUT 2 is selected. Indicates tuner reception status. Indicates SOUND MORPHING status.

# DISPLAY button $ VOLUME 5 (up), (down) buttons % Used both as Numerical key-pad and various

functions.

When using for radio station tuning: Pressing these buttons tunes the unit to the frequencies stored in memory. Examples: Station 5 Station 13 Station 20 When using for the CD player: Pressing these buttons lets you directly select the tracks you want from the program you entered. Examples: 3rd track 99th track

SPECIFICATIONS

Amplifier section <XR-VS55> [FRONT]
Continuous Power Output (RMS)... 70 W + 70 W (1 kHz, T.H.D. 10%, 6 ) Peak Music Power Output.. 1,400 W

CD section

Type.. Compact disc digital audio system Wow and Flutter.. Limit of measurement (0.001 % W.PEAK) or less (EIAJ)

Cassette deck section

Systems... 4 track, 2-channel stereo Heads.. Recording/playback head x 1 Playback head x 1 Erasing head x 1 Motor... DC servo motor x 1 Tape type.. TYPE I (Normal) tape Dimensions XR-VS55, XR-VS77. 270 (W) x 300 (H) x 336 (D) mm Weight (without package) XR-VS55... 7.6 kg XR-VS77... 8 kg

<XR-VS77> [FRONT]

Continuous Power Output (RMS).. 100 W + 100 W (1 kHz, T.H.D. 10%, 6 ) Peak Music Power Output.. 2,000 W

FM/AM Tuner section

FM tuner section Frequency Range... 87.5 MHz to 108 MHz Antenna input... 75 unbalanced AM tuner section Frequency Range With 9 kHz step.. 531 kHz to 1,602 kHz With 10 kHz step.. 530 kHz to 1,700 kHz Antenna... Loop antenna Miscellaneous Power Requirements. AC 110 127, 220 230, 240 V, 50/60 Hz Power Consumption XR-VS55/DBDXJ.. 390 W DLXJ.. 90 W DAMXJ... 380 W XR-VS77/DBDXJ.. 640 W DLXJ... 160 W DAMXJ... 640 W Power Consumption in Standby mode.. 1 W

Accessories

Operating instructions... 1 Remote control unit.. 1 FM antenna... 1 AM loop antenna... 1 Size AA/R6P dry cell batteries.. 2 Video cord... 1 Power cord... 1
NOTE: Specifications and design subject to possible modification without notice due to improvement.
Remote control unit x 1 : XZN3009 (CU-XR051) FM antenna x 1 : ADH7004 AM loop antenna x 1 : XTB3001 Video cord x 1 : VDE1034 AA/R6P dry cell batteries x 2 Power Cord x 1 : ADG1158 (DBDXJ type) ADG1154 (DLXJ/NC type)