Service Manual

STEREO CD RECEIVER

ORDER NO.

RRV1946
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Type Model Power Requirement XC-L7

KUXJ/CA

Remarks

AC120V

CONTENTS
1. SAFETY INFORMATION.. 2 2. EXPLODED VIEWS AND PARTS LIST. 3 3. SCHEMATIC DIAGRAM.. 10 4. PCB CONNECTION DIAGRAM. 26 5. PCB PARTS LIST.. 38 6. ADJUSTMENT.. 43 7. GENERAL INFORMATION.. 50 7.1 PARTS... 50 7.1.1 IC... 50 7.1.2 DISPLAY.. 54 7.2 DIAGNOSIS.. 55 7.2.1 DISASSEMBLY.. 55 7.2.2 PCB LOCATIONS.. 58 7.3 BLOCK DIAGRAM.. 59 8. PANEL FACILITIES AND SPECIFICATIONS. 60
PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
PIONEER ELECTRONICS SERVICE, INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A. PIONEER ELECTRONIC (EUROPE) N.V. Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 501 Orchard Road, #10-00 Lane Crawford Place, Singapore 0923
C PIONEER ELECTRONIC CORPORATION 1998
T - ZZK APR. 1998 Printed in Japan

1. SAFETY INFORMATION

This service manual is intended for qualified service technicians ; it is not meant for the casual do-ityourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair complex products such as those covered by this manual. Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty. If you are not qualified to perform the repair of this product properly and safely, you should not risk trying to do so and refer the repair to a qualified service technician.
WARNING Lead in solder used in this product is listed by the California Health and Welfare agency as a known reproductive toxicant which may cause birth defects or other reproductive harm (California Health & Safety Code, Section 25249.5). When servicing or handling circuit boards and other components which contain lead in solder, avoid unprotected skin contact with the solder. Also, when soldering do not inhale any smoke or fumes produced.
NOTICE (FOR CANADIAN MODEL ONLY) Fuse symbols (fast operating fuse) and/or be of identical designation.
(slow operating fuse) on PCB indicate that replacement parts must
REMARQUE (POUR MODLE CANADIEN SEULEMENT) Les symboles de fusible (fusible de type rapide) et/ou de remplacement doivent avoir la mme dsignation.
(fusible de type lent) sur CCI indiquent que les pices

(FOR USA MODEL ONLY)

1. SAFETY PRECAUTIONS
The following check should be performed for the continued protection of the customer and service technician.
ANY MEASUREMENTS NOT WITHIN THE LIMITS OUTLINED ABOVE ARE INDICATIVE OF A POTENTIAL SHOCK HAZARD AND MUST BE CORRECTED BEFORE RETURNING THE APPLIANCE TO THE CUSTOMER.

LEAKAGE CURRENT CHECK

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" are generally unavailable because they are not in our Master Spare Parts List. mark found on some component parts indicates the importance of the safety factor of the part. The 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

Lithium Battery 13 19(1/2)

18(4/4) 18(3/4) 7

19(2/2)

18(1/4) 18(2/4)

PACKING PARTS LIST

Mark No.

NSP NSP NSP 11 12

Description

Remote Control Unit Holder Display Unit Cord (10P Mini-DIN Cable) Power Cord FM Antenna Vinyl Bag Operating Instructions (English/French) Caution SG Warranty Card AM Loop Antenna Remote Control Unit (CU-XC004) Battery Case

Part No.

AAH7008 ADE7014 ADG1152 ADH7004 AHG7031 ARE7169 ARR7013 ARY1051 ATB7007 AXD7145 AZE7116

NSP NSP NSP 23 24

Lithium Battery (CR2025) Polyethylene Bag Protect Sheet Silica Gel Pad FCD (PS) Pad RCD (PS) Packing Case Vinyl Bag Polyethylene Bag Mirror Mat Sheet DISPLAY UNIT DU-L7
VEM1009 Z21-038 AEH7004 AEN7001 AHA7175 AHA7182 AHD7622 AHG7036 CEG1116 Z23-007

NSP NSP NSP

2.2 MAIN SECTION (XC-L7)

11 G 2 43

3 37(2/2)

43 37(1/2)

32 Refer to "2.4 SINGLE MECHANISM ASSY" 16

C D E F A B C 48 26

D 38 6

MAIN SECTION PARTS LIST

15 NSP 30
CD MAIN Unit CD KEYB1 Unit CD KEYB2 Unit POWER AMP Unit POWER AF Unit POWER HP Unit POWER TRANS Unit POWER SPTB Unit FM/AM Tuner Module Lead Card(33P) Lead Card(5P) Power Transformer(T1) DC Fan Motor Fuse(FU1, 2A) Single Mechanism Assy Leg Front Leg Top Barrier Side Barrier M Barrier Rear Panel Bottom Plate CD Angle Fan Plate Earth Plate Heat Sink Top Plate Tray Sheet Cord Clamper
AWU7147 AWZ8985 AWZ8986 AWZ8990 AWZ8991 AWU7006 AWU7148 AWU7149 AXQ7065 ADD7065 ADD7066 ATS7216 AXM7003 REK1078 RXA1672 AEB7090 AEB7102 AEC7122 AEC7104 AEC7121 ANC7694 ANF7007 ANG7151 ANG7153 ANG7168 ANH7066 ANK7034 AWL7027 RNH-184

45 NSP NSP 50 51

Rivet Tray Panel CD Black Line Bottom Base CD Top Panel Bonnet Button Assy Screw Screw Screw Screw Screw Screw Screw Screw Screw Spacer A Screw Screw Name Label 65 Label
VEC1178 AAN7170 AAP7033 AMA7003 AMB7523 ANE7168 AWL7024 BBZ30P080FMC IBZ30P150FCC BBZ30P300FZK BBZ40P060FMC BPZ30P060FZK BPZ30P080FZK BPZ30P180FZK PMZ30P060FZK VBZ30P080FZK AEB7085 BBZ30P080FCC BPZ30P060FCU ARW7039 ORW1069

NSP NSP

2.3 DISPLAY UNIT DU-L7
DISPLAY SECTION PARTS LIST
CD FLDP Unit CD CNB Unit CD DPKEY Unit Leg Display Button Top Button Window FL Filter Display Panel Rear Cover
AWU7003 AWZ8988 AWZ8989 AEB7090 AAD7409 AAD7430 AAK7461 AEC7117 AMB7458 AMC7013

Screw Screw

BPZ30P100FZK PMZ30P060FZK
2.4 SINGLE MECHANISM ASSY
SINGLE MECHANISM ASSY PARTS LIST
Lever Switch(S601) Screw Rubber Belt Motor Pulley Tray Black V Float Base Drive Gear 2 Gear Pulley Clamper Base Clamp Cam DC Motor/0.75W Float Rubber B Float Rubber G Screw Screw Screw Pinion Gear DC Motor (CARRIAGE) D.C. Motor Assy (SPINDLE) Carriage Base Disc Holder Screw Screw Gear 3 Gear 2 Washer Pick Up Assy-S Guide Bar Gear 1 Gear Stopper
DSK1003 PBA1048 PEB1193 PNW1634 PNW2455 PNW2032 PNW2369 PNW2034 PNW2375 PNW2364 PXM1010 REB1287 REB1288 BPZ26P080FMC Z39 - 019 PMZ26P040FMC PNW2055 PXM1027 PEA1235 PNW2699 PNW1608 JFZ20P030FNI JFZ17P025FZK PNW2054 PNW2053 WT12D032D025 PEA1291 PLA1094 PNW2052 PNB1303

35 NSP NSP 46

Screw PWB Holder Screw Earth Lead Unit Screw Mechanism Board Assy Clamp Magnet Yoke H Rubber Clamper S
BPZ20P060FMC PNW2057 BPZ26P100FMC PDF1104 BBZ26P060FMC PWX1192 PMF1014 PNB1216 PEB1249 PNW1609
Loading Base PNW2376 D.C. Motor Assy (CARRIAGE)PEA1246 Servo Mechanism Assy SL AXA7017 Binder Z09 - 056 Connector Assy (4P) RDE1043 Connector Assy (5P) PDE1239
How to install the disc table
1 Use nipper or other tool to cut the three sections
marked A figure 1. Then remove the spacer.
2 While supporting the spindle motor shaft with
the stopper, put spacer on top of the motor base (angled so it doesn't touch section B ), and stick the disc table on top (takes about 9 kg pressure). Take off the spacer.

PWB Holder

(Pressure of about 9kg)

3.1mm 0.05mm

Disc Table 6.9mm

Spacer

Spacer Setting PCB Position Carriage Spindle Motor Base

3. SCHEMATIC DIAGRAM

3.1 OVERALL CONNECTION DIAGRAM

CN6201

FM/AM TUNER MODULE (AXQ7065)
D CD KEYB1 UNIT (AWZ8985)

CD KEYB2 UNIT (AWZ8986)

C ( C 1/2 , C 2/2 )

CD MAIN UNIT (AWU7147)

POWER HP UNIT (AWU7006)

POWER AF UNIT (AWZ8991)

POWER SPTB UNIT (AWU7149)

AKE7001 CN3841

K POWER AMP UNIT (AWZ8990)

5569-02A1 CN3842

DC FAN MOTOR AXM7003
Note : When ordering service parts, be sure to refer to "EXPLODED VIEWS AND PARTS LIST" or "PCB PARTS LIST".

CD CNB UNIT (AWZ8988)

DISPLAY UNIT DU-L7
CD FLDP UNIT (AWU7003) CD DPKEY UNIT (AWZ8989)
SINGLE MECHANISM ASSY (RXA1672) SERVO MECHANISM ASSY SL (AXA7017)

PICKUP ASSY (PEA1291)

CN1202 173981-4
MECHANISM BOARD ASSY (PWX1192)
M LOADING MOTOR CLAMP SW S601
POWER TRANSFORMER ATS7216

AC 120V 60Hz

REK1078 (2A) AKP7027 (7A 125V)

AC POWER CORD ADG1152

(7A 125V)
POWER TRANS UNIT (AWU7148)
XC-L7 3.2 FM/AM TUNER MODULE

MIX AMP RF AMP

BUFFER

IF AMP

FM +B SW

AM RF TUNING BLOCK

AF AMP

CN3611

REGULATOR

3.3 PICKUP ASSY

(FS) (TS) (TS) (FS) (TS) (FS) (FS) (TS)

CN1101

(FS) (FS)

(FS) (TS) (TS) (FS) (TS)

(FS) (TS)

(FS) (TS) (FS) (FS) (TS)

(FS) (TS) (NC)

(CD) (CD)

SIGNAL ROUTE

(CD) (FS) (TS)

:CD AUDIO SIGNAL ROUTE : FOCUS SERVO LOOP LINE : TRACKING SERVO LOOP LINE
WAVEFORMS OF CD MAIN UNIT
Note: The encircled numbers denote measuring points in the schematic diagram.
1 50T-JUMP: After switching to the pause mode, press the manual search key. 2 FOCUS-IN: Press the play key without loading a disc.
TP1- Pin 1 : PLAY MODE (RF)

H : 500nsec/div

5 IC1201- Pin 3 :

H : 1msec/div

PLAY MODE (FODR)
Pin 3 : 8 IC1202- SEARCH TRACK MODE (CADR)

H : 200msec/div 5Vp-p

19 IC1301- Pin 52 :

PLAY MODE (1kHz) (PCMD)

0.5Vp-p 1.2Vp-p

2 TP1- Pin 1 :

TRACK SEARCH MODE (RF)

H : 200sec/div 1.2Vp-p

6 IC1201- Pin 1 :

PLAY MODE (TRDR)

9 IC1101- Pin 32 : PLAY MODE (EFM)

H : 500nsec/div 3Vp-p

23 TRACK SEARCH MODE
Upper:TP1-Pin1(RF) Lower:IC1101-Pin 29 (MIRR)

H : 200sec/div 1Vp-p

0.5Vp-p

4.5Vp-p

3 TP1- Pin 6 :

PLAY MODE (FOER)

H : 10msec/div 0.2Vp-p

50T-JUMP(1) MODE (TRDR)

1.5Vp-p

24 PLAY MODE

Upper:TP1-Pin1(RF) Lower:IC1101-Pin 30 (DFCT)

H : 200sec/div

TP1- Pin 2 : PLAY MODE (TRER)

H : 10msec/div 1Vp-p

7 IC1202- Pin 4 :

H : 50msec/div

PLAY MODE (SPDR)

33 IC1301- Pin 27 :

H : 2sec/div

PLAY MODE (MDP)

Pin 2 : 4 TP1- JUMP(1)MODE 50T(TRER)

H : 1msec/div 3.5Vp-p

TRACK SEARCH MODE (SPDR)

6.2Vp-p

16 IC1301- Pin 54 :

PLAY MODE (1kHz) (BCLK)

53 IC1301- Pin 38 :

PLAY MODE (PCO)

H : 10sec/div 5Vp-p
5 IC1201- Pin 3 : MODE FOCUS-IN(2)

(FODR)

H : 200msec/div 1.8Vp-p
IC1202- Pin 3 : PLAY MODE (CADR)

H : 2sec/div 0.3Vp-p

18 IC1301- Pin 50 :

H : 10sec/div

PLAY MODE (1kHz) (LRCK)
3.4 MECHANISM BOARD ASSY AND CD MAIN UNIT(1/2)
SERVO MECHANISM ASSY SL (AXA7017)

(FS) (TS) (CD)

S610 DC MOTOR ASSY (SPINDLE) PEA1235

-14V 4

(TS) (TS) (CM)

(CM) (SM)

(SM) (CM)

TRACKING DRIVE

DC MOTOR ASSY (CARRIAGE) PEA1246
SINGLE MECHANISM ASSY (RXA1672)

CARRIAGE DRIVE

CD MAIN UNIT (1/2) (AWU7147)

B C 1/2

: SPINDLE MOTOR ROUTE :CD AUDIO SIGNAL ROUTE (CM) : CARRIAGE MOTOR ROUTE : FOCUS SERVO LOOP LINE : TRACKING SERVO LOOP LINE

(TS) (FS)

(FS) (CD)

(TS) (TS)

0.01 YB

C1322 0.01

XC-L7 3.5 CD MAIN (2/2), CD KEYB1 AND CD KEYB2 UNITS

IC6101 PD4843B

SYSTEM CONTROL

NO CONNECTION

(REC OUT)
(TX) (TX) (AUX) (REC OUT) DC 4.5V

DC 4.5V

STBY : 0V ON : -12V

(CD) STBY : 0V ON : 12V

CN3002

CN3001

SIGNAL ROUTE : LCH AUDIO SIGNAL ROUTE

CN5703

ATX1012 L114

: AUX AUDIO SIGNAL ROUTE

: DECK PB SIGNAL ROUTE

: DECK REC SIGNAL ROUTE

GND DISP
: TUNER AUDIO SIGNAL ROUTE

: CD AUDIO SIGNAL ROUTE

S6201,S6202 : RSG1034
D CD KEYB1 UNIT (AWZ8985) C 2/2
CD MAIN UNIT (2/2) (AWU7147)

S6203 - S6207 : RSG1034

CD KEYB1 UNIT S6201 : S6202 : STANDBY/ON CD KEYB2 UNIT S6203 : S6204 : S6205 : S6206 : S6207 :

Ever : 0V

TC POWER CONTROL
CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE NO. ICP-N20, MFD BY ROHM CO., LTD. FOR IC3901 AND IC3902.

C3901 1/50

5V (AUX)

HP POWER CONTROL

C 2/2 D E
XC-L7 3.6 CD FLDP, CD CNB AND CD DPKEY UNITS

CN6801

C5711 0.047

100/6.3

G CD CNB UNIT (AWZ8988)

C5704 0.22 C5710 0.047

REMOTE RECEIVER UNIT

CD FLDP UNIT (AWU7003)

C5712 0.047
CD FLDP UNIT S5755 : CHARACTER S5756 : MENU S5757 : CANCEL ( ) S5758 : ( ) S5759 : + ( ) S5760 : SET FM/AM/STATION CD DPKEY UNIT S5751 : STANDBY/ON S5752 : FUNCTION (PLAY) S5753 : VOLUME S5754 :

DC -22V

C5721 1/50

C5722 1/50

H CD DPKEY UNIT (AWZ8989)
XC-L7 3.7 POWER AF AND POWER HP UNITS

CN6102

(AUX) (CD) (PB) (TX)

(AUX) (TX) (CD)

DC 0V DC 4.5V

DC4.5V 5V

CN6103
FUNCTION VR TONE SUBWOOFER LEVEL CONT.

VRIC VCC

HP AMP

AL 0.22 / 50

VRIC Vref
0.047 4.7k AL 0.22 / 50 SIGNAL ROUTE
: TUNER AUDIO SIGNAL ROUTE : CD AUDIO SIGNAL ROUTE

: LCH AUDIO SIGNAL ROUTE

(AUX) (PB) (REC OUT) (CD)
: AUX AUDIO SIGNAL ROUTE : DECK PB SIGNAL ROUTE : DECK REC SIGNAL ROUTE
: H.P AUDIO SIGNAL ROUTE : SUBWOOFER OUTPUT
XC-L7 3.8 POWER AMP, POWER TRANS AND POWER SPTB UNITS

AC POWER CORD

T1 POWER TRANSFORMER ATS7216

C13,C14 : 4700 / 35

-29V REK1078 (2A 125V)

H1,H2 : AKR1003

C1,C2 : 10000p/250
IC2,IC3 : AEK7017 (3.5A 125V) 2.2M

C21 100/35

NOTE FOR FUSE REPLACEMENT CAUTION - FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE WITH SAME TYPE AND RATINGS ONLY.
CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. 49103.5 MFD, BY LITTELFUSE INK. FOR IC2 AND IC3 (AEK7017).
DISPLAY at Connect : -24V Not Connect : 0V
CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. 491.750 MFD, BY LITTELFUSE INK. FOR IC32 (AEK7007). CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. 491.500 MFD, BY LITTELFUSE INK. FOR IC51 (AEK7005). CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. 491.315 MFD, BY LITTELFUSE INK. FOR IC61 (AEK7003).
IC32 : AEK7007 (750mA125V)
AEK7003 (315mA125V) STANDBY : 0V POWER ON : 12V 14V -14V 5.6V AEK7005 (500mA125V)
STANDBY : 0V POWER ON : 5.6V
DISPLAY at Connect : -30V Not Connect : 0V
STANDBY : 0V POWER ON : 5V

CD 5V GENERATOR

STANDBY : 0V POWER ON : -12V

12V TRACKING GENERATOR

STANDBY : 5V POWER ON :0V

CN6101

POWER AMP UNIT(AWZ8990)
: AUX AUDIO SIGNAL ROUTE : SUBWOOFER OUTPUT

FAN DRIVE

ASR7007
ASR7007 STANDBY : 0V POWER ON : -29V ASR7007

SATELITE SP AMP

STK401-030

10 / 50

10 / 50 ZA

YB 0.047

SATELITE AMP STANDBY CONTROL

RY3331 (3/3) ASR7007

SUBWOOFER AMP

RY3431 (3/3) ASR7007

OVER LOAD DET. SUBWOOFER AMP STANDBY CONTROL

DC DET.

AKEATH-ATH-059

ATH-059

FAN MOTOR
M POWER SPTB UNIT (AWU7149)
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

C CN3611

A FM/AM TUNER MODULE

VR6201 Q6204 Q6203

IC6201

Q6201 Q6202 IC6202
Q6301 Q6303 Q6302 Q6403 Q6214 Q6402 Q6404 Q6205

Q6304 Q6306

(ANP7159-B)
XC-L7 4.2 MECHANISM BOARD ASSY AND CD MAIN UNIT

B MECHANISM

SPINDLE MOTOR

BOARD ASSY

LOADING MOTOR, CLAMP SW

VR1101

(PNP1239-C)

INSIDE

CARRIAGE MOTOR

VR1102

PICKUP ASSY

IC1201 IC1202

CD MAIN UNIT

IC3901 IC3902 A

(ANP7209-C)

I CN3002 SIDE A

IC3601 Q3601

C CD MAIN UNIT

Q3905 Q6102

Q3903 Q6101 Q3904

IC6101

IC1101 IC3601

IC1301 Q1342

Q1541 Q1544 Q6001 Q6004

XC-L7 4.3 CD KEYB1, CD KEYB2, CD FLDP, CD CNB AND CD DPKEY UNITS

CD CNB UNIT

H CD DPKEY UNIT

D CD KEYB1 UNIT

C CN6202

CD KEYB2 UNIT

CD FLDP UNIT

D E F G H

H CD DPKEY
D CD KEYB1 UNIT F CD FLDP UNIT

D (ANP7209-C)

D E F H
XC-L7 4.4 POWER AF, POWER HP, POWER AMP, POWER TRANS AND POWER SPTB UNITS

L POWER TRANS UNIT J POWER

HP UNIT

IC3301

Q3751 IC61 IC51 IC32 Q21

C CN6101

C CN6103

I POWER AF UNIT

C CN6102

M POWER SPTB UNIT K POWER AMP UNIT
IC53 Q61 Q52 IC31 IC62 Q71 Q72

Q53 Q62 Q73

(ANP7210-B)

IC3201

IC3011 IC3041 Q3532 IC3071 IC3501 Q3531 Q3533

M POWER SPTB UNIT

K POWER AMP UNIT

L POWER TRANS UNIT J

POWER HP UNIT
Q3393 Q3392 Q3712 Q3381 Q3711 Q3701 Q3731 Q3741 Q3752

Q3391 Q3383 Q3721 Q3722

5. PCB PARTS LIST
NOTES: Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List. mark found on some component parts indicates the importance of the safety factor of the part. The 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%). 560 = = 561... RD1/4PU 1 J 47k = = 473... RD1/4PU 3 J 0.5 = R50... RN2H K 1 = 1R0... RS1P K Ex.2 When there are 3 effective digits (such as in high precision metal film resistors). 5.62k = = 5621.. RN1/4PC F
ATF-155 ATF7008 ATF7011 LAU2R2J

LIST OF ASSEMBLIES

FM/AM TUNER MODULE NSP NSP MECHANISM BOARD ASSY MOTH ASSY CD MAIN UNIT CD KEYB1 UNIT CD KEYB2 UNIT CD FLDP UNIT CD CNB UNIT CD DPKEY UNIT POWER ASSY POWER AF UNIT POWER HP UNIT POWER AMP UNIT POWER TRANS UNIT POWER SPTB UNIT AXQ7065 PWX1192 AWM7386 AWU7147 AWZ8985 AWZ8986 AWU7003 AWZ8988 AWZ8989 AWM7387 AWZ8991 AWU7006 AWZ8990 AWU7148 AWU7149
F6401 F6206 F6202 L6206, L6208, L6403

TRANSFORMERS

T6201 T6401 ATB7008 ATE7002

CAPACITORS

C6208 C6212, C6274, C6275, C6408 C6221, C6222, C6416 C6271 C6415 C6406 C6401, C6419 C6407 C6410 C6413 C6414 C6405 C6234, C6235 C6245 C6224 CCSQCH100D50 CCSQCH101J50 CCSQCH150J50 CCSQCH200J50 CCSQCH330J50 CCSQCH331J50 CCSQCH5R0C50 CCSQCK1R0C50 CCSQCK2R0C50 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

SEMICONDUCTORS

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

AM antenna terminal YELLOW BLACK AXX7041 FM antenna terminal Pin 20 VR6201 T6401 L6401 IC6201 T6201

Fig. 2 Adjustment Point

6.3 CD SECTION

6.3.1 PREPARATIONS

Jigs and Measuring Instruments
8-cm DISC (With at least about 20 minutes recording)

CD TEST DISC (YEDS-7)

Precise screwdriver

screwdriver (small)

screwdriver (medium)
39 k 0.001F Dual-trace oscilloscope (10 : 1 probe)
Ball point hexagon wrench (size: 1.5mm) GGK1002

screwdriver (large)

Low-frequency oscillator
Low pass filter (39 k + 0.001F)
Necessary Adjustment Points

Exchange PICKUP

Adjustment Points
1, 2, 3, 4, 5, 6 Page 47 to 49

Exchange CD MAIN UNIT

Exchange SERVO MECH ASSY

Exchange SPINDLE MOTOR

Page 9

Adjustment Locations

(REAR)
W6102 TEST MODE Short Point W6103
ADJUSTMENT SCREW (Radial tilt direction)
ADJUSTMENT SCREW (Tangential tilt direction)

TP1 (CN1102)

(FRONT)

TEST MODE : PLAY

TEST DISC: YEDS-7

CN1102

VR1102 (FOCUS GAIN) VR1101 (TRACK GAIN)
6. FE 5. FIN 4. VC 3. TIN 2. TE 1. RF
outwards inwards Pickup Move Laser diode: LIGHTS UP Focus servo: CLOSE Spindle motor: START Spindle servo: CLOSE
OPEN CLOSE Tracking servo:

Check and Adjustment

1. Focus Offset Check

Test mode None disc

DC voltage 0 50mV

If not = repair

CH1 (X)

CH2 (Y)

Player
Oscilloscope DC Mode V : 5mV/div H : 10mSec/div

Probe(10:1)

2. Tracking Error Balance Check
Test mode FOCUS servo CLOSE CLOSE SPDL servo TRKG servo OPEN

TEST DISC

A GND LEVEL B If not = repair

CH1 (X) CH2 (Y)

YEDS-7 R=35mm

Player Low pass filter

Oscilloscope DC Mode V : 50mV/div H : 5mSec/div

39k 0.001F

3. Pickup
Test mode FOCUS servo SPDL servo TRKG servo

8cm DISC

Radial/
Tangential Direction Tilt Adjustment

GGK1002

CLOSE CLOSE CLOSE

Remove lock tight.

Eye pattern

OK (Smooth)

Oscilloscope AC Mode V : 20mV/div H : 200nSec/div

4. RF Level Check

Test mode FOCUS servo CLOSE SPDL servo CLOSE TRKG servo CLOSE

1.2Vp-p 0.2V

Oscilloscope AC Mode V : 50mV/div H : 10mSec/div
5. Focus Servo Loop Gain Adjustment
Test mode FOCUS servo CLOSE CLOSE SPDL servo CLOSE TRKG servo

Lissajous Waveform

Oscilloscope X-Y Mode X : 20mV/div Y : 5mV/div
Low-frequency oscillator 1.2kHz 1Vp-p

FE FIN VC

6. Tracking Servo Loop Gain Adjustment
Test mode FOCUS servo CLOSE CLOSE SPDL servo TRKG servo CLOSE
Oscilloscope X-Y Mode X : 50mV/div Y : 20mV/div

Player TP1 (CN1102)

TIN TE VC

Probe(10:1) Probe(10:1)

0.001F

Low pass filter

100k 39k
Low frequency oscillator 1.2kHz 2Vp-p

7. GENERAL INFORMATION

7.1 PARTS

7.1.1 IC

The information shown in the list is basic information and may not correspond exactly to that shown in the schematic diagrams.
7 CXD2529Q (CD MAIN UNIT : IC1301)
DIGITAL SIGNAL PROCESSING for CD Pin Arrangement (Top view)
SYSM VDD VSS EXCK SBSO SCOR WFCK EMPHI EMPH DOUT C4M FSTT XTSL MNT0 MNT1 MNT3 XROF C2PO RFCK GFS XPCK XUGF GTOP VDD VSS BCKI BCK PCMDI PCMD LRCKI
NC AVSS AVDD AOUT1 AIN1 LOUT1 AVSS XVDD XTAI XTAO XVSS AVSS LOUT2 AIN2 AOUT2 AVDD AVSS NC NC XRST
LRCK WDCK ASYE ASYO ASYI BIAS RF AVDD CLTV AVSS FILI FILO PCO VCTL V16M VCKI VPCO1 VPCO2 TES1 TES0

Block Diagram

XTSL VPCO1 VPCO2 VCKI EMPHI LRCKI PCMDI BCKI SYSM

RFCK C2PO WDCK LRCK PCMD

GTOP XUGF GFS EMPH WFCK

MNT3 MNT1 MNT0

V16M VCTL
FSTT 69 C4M 70 RF 44 ASYI ASYO ASYE BIAS XPCK FILO FILI PCO CLTV
VDD VSS LMUT RMUT TES2 CKOUT SQCK SQSO SENS DATA XLAT CLOK SEIN CNIN DATO XLTO CLKO SPOA SPOB SPOC SPOD XLON FOK VDD VSS MON MDP MDS LOCK PWMI

Clock Generator

OSC EFM Demodurator
Error Corrector D/A Interface
Serial-In Interface Over Sampling Digital Filter Timing Logic
4 RMUT 3 LMUT 89 XTAI 90 XTAO 6 CKOUT

Asymmetry Corrector

16k RAM Sub Code Processor

Digital OUT

3rd-Order Noise Shaper PWM PWM

Digital PLL

FOK 23 SEIN 13 CNIN 14

Servo Auto Sequencer

CPU Interface

Digital CLV

MON MDP MDS LOCK XROF PWMI

DATO XLTO CLKO

SPOA-D

SENS DATA XLAT CLOK

XLON SCOR SBSO EXCK SQSO SQCK

Pin Function

No. 53 Pin Name VDD VSS LMUT RMUT TES2 CKOUT SQCK SQSO SENS DATA XLAT CLOK SEIN CNIN DATO XLTO CLKO SPOA SPOB SPOC SPOD XLON FOK VDD VSS MON MDP MDS LOCK PWMI TES0 TES1 VPCO2 VPCO1 VCKI V16M VCTL PCO FILO FILI AVSS CLTV AVDD RF BIAS ASYI ASYO ASYE WDCK LRCK LRCKI PCMD PCMDI I/O O O O O I O O I I I I I O O O I I I I O I O O O O I I O O I O I O O I I I I I O I O O I O I Power supply (+5V) GND Left-channel zero detection flag Right-channel zero detection flag TEST output pin;normally open Master clock frequency-divider output SQSO readout clock input Sub Q 80-bit serial output SENS output to CPU Serial data input from CPU Latch input from CPU SENS input from SSP Track jump count signal input Serial data output to SSP Serial data latch output to SSP Latched at the falling edge Serial data transfer clock output to SSP Microcomputer extended interface (input A) Microcomputer extended interface (input B) Microcomputer extended interface (input C) Microcomputer extended interface (input D) Microcomputer extended interface (output) Focus OK input GND Spindle motor on/off control output Spindle motor servo control GFS is sampled at 460Hz;when GFS is high, this pin outputs a high signal If GFS is low eight consecutive samples, this pin outputs low Spindle motor external control input TEST pin;normally GND Wide-band EFM PLL charge pump output Charge pump output for wide-band EFM PLL VCO2 oscillation input for the wide-band EFM PLL VCO2 oscillation output for the wide-band EFM PLL VCO2 control voltage input for the wide-band EFM PLL Master PLL charge pump output Master PLL (slave=digital PLL) filter output Master PLL filter input Analog GND Master VCO control voltage input Analog power supply (+5V) EFM signal input Constant current input of the asymmetry circuit Asymmetry comparator voltage input EFM full-swing output (low=VSS, high=VDD) Low:asymmetry circuit off;high:asymmetry circuit on D/A interface D/A interface LR clock input D/A interface D/A interface Serial data output (two's complement, MSB first) Serial data input (two's complement, MSB first) Word clock f=2fs LR clock output f=fs Turned on/off by FCSW of address E Used for SENS output and the servo auto sequencer Power supply (+5V) Serial data is latched at the falling edge Serial data transfer clock input from CPU Selects and outputs XTAI 1, 1/2, 1/4 or low only Function

7 PD4843B (CD MAIN UNIT : IC6101)
SYSTEM CONTROL UCOM Pin Function
No. 9 Mark P15/ANI5 P16/ANI6 P17/ANI7 AVss P130 P131 AVREF1 P70/SI2 P71/SO2 Pin Name S.THERMO J/EX S.CLK S.DAT1 S.DAT0 FLCE FLDATA FLCLK SQSO CDDAT CDCLK H.P.SW D.REQ D.DAT I/O I I I I O O O O I O O I O I Function A/D input for Sub-thermistor Destination switch input H:J, L:EX System bus CLOCK Ground of A/D converter System bus DATA IN System bus DATA OUT Reference voltage input of D/A FL driver CE FL driver DATA FL driver CLOCK CD SQSO (CXD2529Q) CD DATA (CXD2529Q) CD CLOCK (CXD2529Q) Headphone switch Display data CS Display data DATA No. Mark Pin Name ROMUTE LOMUTE XCLMP XOPEN XINSD LOIN LOOUT XCDPOW SPCONT XPOWON FLPOW I/O I I I I I O O O O O O O O I O I Function MUTE request of CD R ch O MUTE request of CD L ch O CD clamp switch input CD open switch input CD slider inside switch CD tray IN CD tray OUT Not used Speaker relay control POWER ON/OFF FL POWER ON/OFF Fan control HI/LOW Not used Unit checker TEST MODE TUNER MUTE / IF COUNT TUNER DATA OUT (LC72131MD) (PLL frequency synthesizer for elect ronic tuning) TUNER CLOCK (LC72131MD) (PLL frequency synthesizer for elect ronic tuning) TUNER DATA IN (LC72131MD) (PLL frequency synthesizer for elect ronic tuning) TUNER CE RESET input of microprocessor Remote control input AC pulse input CD SCOR RDS IC CLOCK RDS IC DATA RDS DATA QUALITY 41 P65/WR 42 P66/WAIT 43 P67/ASTB 44 P30/TOP31/TOP32/TOP33/TIP34/TIP35/PCL 50 P36/BUZ 51 P37
10 P72/SCKP20/SIP21/SOP22/SCKP23/STB 15 P24/BUSY 16 P25/SI0
52 P120/RTP0 FANDRV 53 P121/RTPP122/RTP2 TESTU 55 P123/RTP3 TXMUTE 56 P124/RTP4 TXD.O.

17 P26/SO0

Not used

57 P125/RTP5 PLLCLK

18 P27/SCKP40/ADP41/ADP42/ADP43/ADP44/ADP45/ADP46/ADP47/ADP50/AP51/AP52/AP53/AP54/AP55/AVSS 34 P56/AP57/APPPPP64/RD
D.CLK HPPOW VRDATA VRCLK XLEDTX XLEDCD CDMUTEL CDMUTER XCDLA GFS CDSEN CDSHUT XMUTE XLDON XTCPOW XRDSFM CDRES
I O O O O O O O O O O O O O I I O O O O O O
Display data CLOCK Not used Not used Not used Not used Not used Power supply for headphone H:ON, L:OFF Volume IC (M62419FP) DATA Volume IC (M62419FP) CLOCK TUNER LED control H:lights-out, L:light CD LED control H:lights-out, L:light Mute control of CD analog output (Lch) Mute control of CD analog output (Rch) CD LATCH (CXD2529Q) CD GFS input (CXD2529Q) Ground CD SENSE input (CXD2529Q) CD XTAL ON/OFF H:XTAL OFF, L:XTAL ON System MUTE H:MUTE OFF, L:MUTE ON CD laser diode ON/OFF H:OFF, L:ON TAPE power supply ON/OFF H:OFF, L:ON RDS IC power supply ON/OFF CD RESET (CXD2529Q)

REC OUT Power Supply for TC System BUS

No Connection

Other CH TC+

HEAD PHONE

T1 POWER TRANSFORMER 15 14

UCOM IC6101 E+5.6

Q62 12V

UNREG+ +

12 D31 AC INLET 11 L1 FU1 CN1 AC POWER CORD
IC31 (NJM78M56FA) CD+5 Q73
UNREG Q23 30V VFDP FLAC 9 8

MAIN BLOCK

Pickup Assy
Focus, Tracking Spindle, Carriage, Loading 71 86
CD AUDIO SIGNAL TX AUDIO SIGNAL
IC1101 (CXA1372BQ) Servo Controller
IC1301 (CXD2529Q) Decoder
IC1201 (LA6517) IC1202 (LA6520) Drive Amp.

IC6101 (PD4843B) CPU

AUX AUDIO SIGNAL AMP AUDIO SIGNAL

AUX IN

DIGITAL OUT

POWER AMP UNIT

Power Supply

Key Button

IC5701 (LC75712E) FL Driver

CD KEYB1 UNIT

V5701 (AAV7051) FL TUBE
8. PANEL FACILITIES AND SPECIFICATIONS

PANEL FACILITIES

STEREO CD RECEIVER XC-L7 DISPLAY UNIT DU-L7

STANDBY/ON

FM/AM/STATION

PHONES

STEREO CD RECEIVER XC-L7
1 POWER, STANDBY/ON switch 2 FM/AM/station button 3 Tuner indicator 4 CD tray button
1 CHARACTER/Timer button 2 MENU button

buttons

Roles of common operation buttons vary depending on the input function currently selected.
4 CANCEL/Stop button button 5 REMOTE SENSOR 6 VOLUME (UP), (DOWN) buttons 7 FUNCTION button 8 POWER STANDBY/ON switch
Roles of common operation buttons vary depending on the input function currently selected, as follows: During Tuner Operation
1 : Frequency and station (down) button. 4
: Frequency and station + (up) button.
[DISPLAY SECTION] 9 Lights when station is tuned. 0 Lights when receiving a stereo broadcast. - Shows station frequencies and main operating conditions. = Lights during monaural mode. ~ Lights during setting and operation of the sleep timer. ! Lights during wake-up timer setting mode; flashes during operation. @ Lights during setting and operation of the wake-up timer.

During CD Operation

1 : Fast reverse/track search button. 4
: Fast forward/track search button.
7 Playback indicator 8 CD Play/Pause button 9 CD tray Open/Close button (0) 0 CD stop button (7). - PHONES jack
For use with headphones equipped with a stereo miniplug. When headphones are connected, sound to the speakers is disabled.

REMOTE SENSOR

FUNCTION (PLAY)

VOLUME

@ ! ~ =
DISPLAY UNIT DU-L7: Roles of common operation buttons vary depending on the input function currently selected, as follows: During Tuner Operation

NOTE: Specifications and design subject to possible modification without notice, due to improvements.

Accessories 1

DIRECT PLAY MENU

4 SET

* The remote control unit is supplied already mounted inside in its holder. 1 Remote control unit x 5 : AXD7145 (CU-XC004) Remote control unit holder x 1 : AAH7008 Lithium battery (CR2025) x 1 : VEM1009 FM antenna x 1 : ADH7004 AM loop antenna (shown assembled) x 1 : ATB0 Power cord x 1 : ADG1152 Display unit cord (10p mini-DIN cable) x 1 : ADE7014 Operating instructions x 1 Warranty card x 1