ORDER NO.

CRT3569

DEH-P680MP/XN/UC

MULTI-CD CONTROL HIGH POWER CD/MP3/WMA/AAC PLAYER WITH FM/AM TUNER

DEH-P680MP

DEH-P6800MP DEH-P6850MP

Model No.

CX-3164

/XN/UC

/XN/UC /XN/ES
This service manual should be used together with the following manual(s):

Order No.

CRT3583

Mech.Module

S10.5COMP1

Remarks

CD Mech. Module:Circuit Description, Mech. Description, Disassembly
For details, refer to "Important Check Points for Good Servicing".
PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan
PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A. PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936

PIONEER CORPORATION 2005

K-ZZA.NOV. 2005 Printed in Japan

SAFETY INFORMATION

CAUTION
This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer. 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 This product contains lead in solder and certain electrical parts contain chemicals which are known to the state of California to cause cancer, birth defects or other reproductive harm. Health & Safety Code Section 25249.6 - Proposition 65

- Service Precaution

1. You should conform to the regulations governing the product (safety, radio and noise, and other regulations), and should keep the safety during servicing by following the safety instructions described in this manual. 2. Before disassembling the unit, be sure to turn off the power. Unplugging and plugging the connectors during power-on mode may damage the ICs inside the unit. 3. To protect the pickup unit from electrostatic discharge during servicing, take an appropriate treatment (shorting-solder) by referring to "the DISASSEMBLY" 4. After replacing the pickup unit, be sure to check the grating.
[Important Check Points for Good Servicing]
In this manual, procedures that must be performed during repairs are marked with the below symbol. Please be sure to confirm and follow these procedures.

1. Product safety

Please conform to product regulations (such as safety and radiation regulations), and maintain a safe servicing environment by following the safety instructions described in this manual. 1 Use specified parts for repair. Use genuine parts. Be sure to use important parts for safety. 2 Do not perform modifications without proper instructions. Please follow the specified safety methods when modification(addition/change of parts) is required due to interferences such as radio/TV interference and foreign noise. 3 Make sure the soldering of repaired locations is properly performed. When you solder while repairing, please be sure that there are no cold solder and other debris. Soldering should be finished with the proper quantity. (Refer to the example) 4 Make sure the screws are tightly fastened. Please be sure that all screws are fastened, and that there are no loose screws. 5 Make sure each connectors are correctly inserted. Please be sure that all connectors are inserted, and that there are no imperfect insertion. 6 Make sure the wiring cables are set to their original state. Please replace the wiring and cables to the original state after repairs. In addition, be sure that there are no pinched wires, etc. 7 Make sure screws and soldering scraps do not remain inside the product. Please check that neither solder debris nor screws remain inside the product. 8 There should be no semi-broken wires, scratches, melting, etc. on the coating of the power cord. Damaged power cords may lead to fire accidents, so please be sure that there are no damages. If you find a damaged power cord, please exchange it with a suitable one. 9 There should be no spark traces or similar marks on the power plug. When spark traces or similar marks are found on the power supply plug, please check the connection and advise on secure connections and suitable usage. Please exchange the power cord if necessary. 0 Safe environment should be secured during servicing. When you perform repairs, please pay attention to static electricity, furniture, household articles, etc. in order to prevent injuries. Please pay attention to your surroundings and repair safely.

2. Adjustments

To keep the original performance of the products, optimum adjustments and confirmation of characteristics within specification. Adjustments should be performed in accordance with the procedures/instructions described in this manual.
3. Lubricants, Glues, and Replacement parts
Use grease and adhesives that are equal to the specified substance. Make sure the proper amount is applied.

4. Cleaning

For parts that require cleaning, such as optical pickups, tape deck heads, lenses and mirrors used in projection monitors, proper cleaning should be performed to restore their performances.
5. Shipping mode and Shipping screws
To protect products from damages or failures during transit, the shipping mode should be set or the shipping screws should be installed before shipment. Please be sure to follow this method especially if it is specified in this manual.

CONTENTS

SAFETY INFORMATION..... 2 1. SPECIFICATIONS..... 5 2. EXPLODED VIEWS AND PARTS LIST... 8 2.1 PACKING..... 8 2.2 EXTERIOR..... 10 2.3 CD MECHANISM MODULE.... 14 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM... 16 3.1 BLOCK DIAGRAM..... 16 3.2 TUNER AMP UNIT(GUIDE PAGE).... 18 3.3 KEYBOARD UNIT.... 24 3.4 CD MECHANISM MODULE.... 26 4. PCB CONNECTION DIAGRAM.... 36 4.1 TUNER AMP UNIT..... 36 4.2 CD CORE UNIT(S10. 5COMP1).... 40 4.3 KEYBOARD UNIT.... 42 5. ELECTRICAL PARTS LIST.... 43 6. ADJUSTMENT..... 53 6.1 CD ADJUSTMENT..... 53 6.2 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT.. 55 6.3 ERROR MODE..... 57 6.4 FREQUENCY CHECK FOR CLOCK... 58 7. GENERAL INFORMATION..... 59 7.1 DIAGNOSIS..... 59 7.1.1 DISASSEMBLY..... 59 7.1.2 CONNECTOR FUNCTION DESCRIPTION... 63 7.2 IC..... 64 7.3 OPERATIONAL FLOW CHART.... 75 8. OPERATIONS.... 76

1. SPECIFICATIONS

2. EXPLODED VIEWS AND PARTS LIST
NOTES : Parts marked by " * " are generally unavailable because they are not in our Master Spare Parts List.
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. Screw adjacent to mark on the product are used for disassembly. For the applying amount of lubricants or glue, follow the instructions in this manual. (In the case of no amount instructions,apply as you think it appropriate.)

Part No. CNV7753 CNV7754 CNV7755 CWS1389 CSN1051 CSN1052 CXC2199 CXC6623 CXC6624 JFZ20P020FTC
XBL7003 YE15FTC See Contrast table(2) CBA1871 CBA1935 CBH2530 CKS5273 CNV6962 CNV6967 CNV8048 XBA7002 XNC7019 XNP7026 XXA7426 See Contrast table(2) BPZ20P080FTB XAC7128 XAC7130 XNV7027 CKS5272 CKS5545 CNM8673 MXS8231 GP1UX31RK XKN7001 XNC7009 XNM7118 XNV7023 XNV7029 XXA7377 XXA7379 XXA7380 XXA7381 See Contrast table(2) XXA7428 PAL007B CTH1280 See Contrast table(2) See Contrast table(2) DSP-201M-S00B
(2) CONTRAST TABLE DEH-P680MP/XN/UC , DEH-P6800MP/XN/UC and DEH-P6850MP/XN/ES are constructed the same except for the following:
Panel Tuner Amp Unit Connector(CN161) Holder Panel Unit Detachable Assy Sub Grille Assy Screw Holder
XNS7145 XWM7116 CKS4124 XNC7022 XXA7408 XXA7413 XXA7420 Not used Not used
XNS7144 XWM7115 CKS4124 XNC7022 XXA7407 XXA7412 XXA7419 BMZ40P140FTC CNV7619
XNS7144 XWM7114 Not used XNC7012 XXA7407 XXA7411 XXA7418 Not used Not used

2.3 CD MECHANISM MODULE

CD MECHANISM MODULE SECTION PARTS LIST
Mark No. Mark No. 49 Description CD Core Unit(S10.5COMP1) Connector(CN101) Connector(CN901) Screw Screw Screw(M2 x 3) Screw(M2 x 4) Washer Spring Spring Spring Spring Spring Spring Spring Spring Spring Spring Spring Spring Spring Spring Spring Spring Arm Frame Bracket Arm Lever Arm Bracket Arm Lever Holder Gear Gear Gear Gear Gear Gear Rack Arm Roller Gear Guide Gear Guide Arm Part No. CWX3176 CKS4182 CKS5284 BMZ20P025FTC BSZ20P040FTC CBA1511 CBA1835 CBF1038 CBH2609 CBH2612 CBH2614 CBH2616 CBH2617 CBH2620 CBH2855 CBH2937 CBH2735 CBH2854 CBH2642 CBH2856 CBH2857 CBH2860 CBH2861 CBL1686 CND1909 CND2582 CND2583 CND2584 CND2585 CND2586 CND2587 CND2588 CND2589 CNV7201 CNV7207 CNV7208 CNV7209 CNV7210 CNV7211 CNV7212 CNV7214 CNV7216 CNV7218 CNV7219 CNV7361 CNV7595 CNV7799 CNVRack Roller Holder Arm Guide Arm Arm Arm Clamper Arm Guide Arm Collar Motor Unit(M2) Arm Unit Chassis Unit Gear Unit Frame Unit Motor Unit(M1) Screw Unit Screw Screw Washer Pickup Unit(P10.5)(Service) Screw Description Part No. CNV8342 CNV8343 CNV8344 CNV8345 CNV8347 CNV8348 CNV8349 CNV8350 CNV8365 CNV8386 CNV8396 CNV8413 CNV8938 CXC4026 CXC4027 CXC4028 CXC4029 CXC4031 CXC4166 CXC6359 JFZ20P020FTC JGZ17P022FTC YE20FTC CXX1942 IMS26P030FTC
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

9 FIN 0 RFOK 6 SIN
200 mV/div 500 ms/div ! TE 2 V/div @ FE 2 V/div
500 mV/div 200 ms/div @ FE 500 mV/div 9 FIN ! TE 8 TIN
500 mV/div 20 ms/div 500 mV/div 500 mV/div 500 mV/div
12 cm CD-DA Source On setup operation
Source On setup operation

CD-DA Play operation

@ FE 9 FIN ! TE 8 TIN

# MDX 6 SIN

2 V/div 50 ms/div # MDX 200 mV/div 6 SIN
2 V/div 5 s/div 500 mV/div
CD-ROM play operation(Regular track Jump)
Spindle waveform during play operation
Spindle waveform during play operation (Wider)

9 FIN @ FE

500 mV/div 200 ms/div ! TE 500 mV/div $ RFAGC
500 mV/div 2 ms/div 500 mV/div

$ RFAGC ! TE 8 TIN

500 s/div 1 V/div 500 mV/div 500 mV/div

Focus Search waveform

Track Open waveform

1 Track Jump waveform

Ref.: REFO Mode: TEST
1 V/div 500 s/div $ RFAGC 500 mV/div ! TE 500 mV/div 8 TIN
1 V/div 1 ms/div 500 mV/div 500 mV/div
1 V/div 2 ms/div 500 mV/div 500 mV/div

4 Tracks Jump waveform

10 Tracks Jump waveform

32 Tracks Jump waveform

Ref.: REFO

Mode: TEST

$ RFAGC ! TE 7 CIN 6 SIN
200 ms/div % LOUT 1 V/div 1 V/div ^ ROUT 500 mV/div 2 V/div

1 V/div 1 V/div

200 s/div 1 DSCSNS 5 V/div 2 8SNS 5 V/div 3 12SNS 5 V/div

12 cm CD Eject operation

Search operation(Outter to Inner)

Analog audio waveform

Ref.: REFO Mode: Normal Ref.: AGND Mode: Normal Ref.: GND Mode: Normal
1 DSCSNS 5 V/div 5 CLCONT 5 V/div 4 LOEJ 5 V/div

8 cm CD Eject operation

500 ms/div 6 SIN 7 CIN 8 TIN
1 V/div 500 ms/div 500 mV/div 500 mV/div
CD-DA CD-ROM mode change(Band key)
1 V/div 500 ms/div $ RFAGC 500 mV/div 8 TIN 500 mV/div ! TE 9 FIN
1 V/div 1 V/div 1 V/div 1 V/div

500 s/div

CD-ROM CD-DA mode change(Band key)
Black dot(800 m) during play

4.1 TUNER AMP UNIT

4. PCB CONNECTION DIAGRAM

NOTE FOR PCB DIAGRAMS

1.The parts mounted on this PCB include all necessary parts for several destination. For further information for respective destinations, be sure to check with the schematic diagram. 2.Viewpoint of PCB diagrams

CORD ASSY

Connector

Capacitor

SIDE A

P.C.Board Chip Part

SIDE B

36 DEH-P680MP/XN/UC

SIDE A WIRED REMOTE CONTROL RCA ANTENNA JACK

38 DEH-P680MP/XN/UC

4.2 CD CORE UNIT(S10. 5COMP1)
SIDE A PICKUP UNIT(P10.5)(SERVICE)

REFO1 E

M2 LOADING /CARRIAGE MOTOR

M1 SPINDLE MOTOR

40 DEH-P680MP/XN/UC

DSCSNS

4.3 KEYBOARD UNIT

23 IC1871

CN1802

DISPLAY

VOL/SEL

SOURCE

42 DEH-P680MP/XN/UC

BAND CLOCK

5. ELECTRICAL PARTS LIST
NOTE: Parts whose parts numbers are omitted are subject to being not supplied. The part numbers shown below indicate chip components. Chip Resistor RS1/_S___J,RS1/__S___J Chip Capacitor (except for CQS..) CKS.., CCS.., CSZS.. 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. Meaning of the figures and others in the parentheses in the parts list. Example) IC 301 is on the point (face A, 91 of x-axis, and 111 of y-axis) of the corresponding PC board. IC 301 (A, 91, 111) IC NJM2068V
Circuit Symbol and No. Part No.
Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q D D D D D D D D D D D

Circuit Symbol and No.

(B,32,110) Transistor (B,32,107) Transistor (A,96,62) Transistor (A,87,57) Transistor (A,63,71) Transistor (B,67,82) Transistor (A,149,110) Transistor (B,128,125) Transistor (B,142,121) Transistor (A,49,65) Transistor (B,121,123) Transistor (A,129,116) Transistor (B,150,40) Transistor (A,16,56) Transistor (B,32,57) Transistor (A,151,39) Transistor (B,138,29) Transistor (A,72,23) Transistor (B,66,13) Transistor (B,124,37) Transistor (B,125,33) Transistor (B,82,12) Transistor (A,28,38) Transistor (B,30,38) Transistor (A,16,69) Transistor (B,16,82) Transistor (A,90,116) Transistor (A,80,125) Transistor (A,71,104) Transistor (A,57,87) Diode (A,125,75) Diode (A,65,104) Diode (A,61,104) Diode (A,35,87) Diode (A,52,62) Diode (A,129,98) Diode (A,27,59) Diode (A,141,19) Diode (A,151,15) Diode (A,147,15) Diode
2SA1576 DTC114EU DTC114EU UMD2N 2SD1767 UMD2N IMH3A IMH3A IMH3A 2SC4081 DTC124EU UMD2N 2SC3052-12 2SD2396 UMD2N 2SD1760F5 UMD3N 2SD1767 UMD2N 2SA1576 DTC114EU DTC114EU 2SD1760F5 UMD2N 2SD2396 UMD2N UMX1N DTC114EU 2SA1576 HZS12L(B1) RB706F-40 S5688G S5688G HZS9L(A2) DAN202U 1SS133 HZS9L(A1) HZS7L(A3) 1SS133 1SS133
Unit Number : XWM7116(P680MP/XN/UC) Unit Number : XWM7114 (P6850MP/XN/ES) Unit Name : Tuner Amp Unit Unit Number : XWM7115 (P6800MP/XN/UC) Unit Name : Tuner Amp Unit Unit Number : Unit Name : Keyboard Unit Unit Number : CWS1389 Unit Name : Switch Unit Unit Number : CWX3176 Unit Name : CD Core Unit (S10.5COMP1)

RS1/16S221J RS1/16S181J RS1/16S221J RS1/16S271J RS1/16S221J RS1/16S221J RS1/16S222J RS1/16S101J RS1/16S101J RS1/16S101J RS1/16S101J RAB4C101J RAB4C101J RAB4C101J RAB4C101J RAB4C101J RAB4C101J RAB4C101J RAB4C101J RS1/16S101J RS1/16S101J RS1/16S101J RS1/16S101J RS1/16S101J RS1/16S473J RS1/16S473J RAB4C473J RS1/16S101J RS1/16S101J RS1/16S101J RS1/16S473J RS1/16S154J RS1/16S104J RS1/16S103J RS1/16S183J RS1/16S563J RS1/16S333J RS1/16S392J RS1/16S102J RS1/16S102J RS1/16S102J RS1/16S102J RS1/16S152J
(B,21,95) IC PEG144A (A,22,147) IC(P680MP/XN/UC) PD8153A (A,22,147) IC(P6800MP/XN/UC) PD8154A (A,22,147) IC(P6850MP/XN/ES) PD8154A (B,20,126) Transistor 2SC4617 (B,25,120) Transistor 2SC2411K (A,8,20) LED SML412BC5T(NP) (A,8,7) LED SML412BC5T(NP) (A,10,33) LED (A,21,26) LED (A,33,33) LED (A,35,20) LED (A,35,7) LED (A,21,10) LED (A,21,72) LED (A,4,55) LED (A,39,55) LED (A,21,38) LED (A,38,156) LED (B,8,68) Diode (A,36,99) Inductor (B,14,145) Inductor (A,27,125) Inductor SML412BC5T(NP) SML412BC5T(NP) SML412BC5T(NP) SML412BC5T(NP) SML412BC5T(NP) SML412BC5T(NP) SML412BC5T(NP) SML412BC5T(NP) SML412BC5T(NP) SML412BC5T(NP) SML412BC5T(NP) 1SS355 CTF1617 CTF1617 CTF1617
IC 1871 Q 1881 Q 1882 D 1811 D 1812 D D D D D

D D D D D D D L L L

TH1881 X 1841 S 1801 S 1802 S 1803 S S S S S 1808
(B,24,128) Thermistor CCX1037 (B,24,79) Ceramic Resonator 16.000MHz CSS1616 (A,37,159) Push Switch CSG1155 (A,38,148) Push Switch CSG1155 (A,4,22) Push Switch CSG1155 (A,7,33) Push Switch (A,4,7) Push Switch (A,21,30) Push Switch (A,36,33) Push Switch (A,38,7) Push Switch CSG1155 CSG1155 CSG1155 CSG1155 CSG1155

S 1809 S 1810 VR1881

(A,38,22) Push Switch CSG1155 (A,21,55) Switch(VOL/SEL) CSX1065 (B,29,119) Semi-xed6.8k CCP1228
R R R R R R R R R R R R R R R R R R R R (A,8,114) (A,13,107) (B,22,41) (B,9,60) (B,11,50) (B,9,50) (B,19,38) (B,30,63) (B,28,63) (B,17,83) (B,16,82) (B,11,70) (B,14,19) (B,8,19) (B,14,25) (B,8,25) (B,23,15) (B,23,9) (B,16,15) (B,16,8) (B,14,34) RS1/16S222J RS1/16S222J RS1/16S104J RS1/16S332J RS1/16S103J RS1/16S333J RS1/16S103J RS1/16S222J RS1/16S103J RS1/16S101J RS1/16S103J RS1/16S2R2J RS1/16S181J RS1/16S221J RS1/16S181J RS1/16S221J RS1/16S181J RS1/16S221J RS1/16S181J RS1/16S221J RS1/16S181J
C C C C C C C C C C C C C C C 1824 (B,8,74) (A,10,20) (A,10,7) (A,12,33) (A,21,25) (A,31,34) (A,33,20) (A,33,7) (A,21,12) (A,18,71) (A,4,52) (A,38,60) (A,16,38) (A,37,154) (B,31,67) CKSYF106Z10 CKSRYF104Z25 CKSRYF104Z25 CKSRYF104Z25 CKSRYF104Z25 CKSRYF104Z25 CKSRYF104Z25 CKSRYF104Z25 CKSRYF104Z25 CKSRYF104Z25 CKSRYF104Z25 CKSRYF104Z25 CKSRYF104Z25 CKSRYF104Z25 CKSRYB473K25

S 904 S 905

(B,42,87) Switch(12EJ) (B,28,88) Switch(8EJ)
R R R R R R R R R R R R R R R R R R R R (B,61,92) (B,63,92) (B,63,89) (A,52,73) (B,44,57) (A,38,62) (A,37,62) (A,46,79) (A,46,81) (A,44,81) (A,45,81) (B,52,78) (B,52,77) (A,44,75) (A,46,72) (A,44,72) (A,46,75) (B,26,63) (B,26,62) (B,26,69) RS1/10SR2R4J RS1/10SR2R4J RS1/10SR2R7J RS1/16SS102J RS1/16SS102J RS1/16SS473J RS1/16SS473J RS1/16SS472J RS1/16SS472J RS1/16SS103J RS1/16SS103J RS1/16SS103J RS1/16SS393J RS1/16SS562J RS1/16SS122J RS1/16SS472J RS1/16SS122J RS1/16SS333J RS1/16SS333J RS1/16SS333J

C 246 C 250 C 251

CKSSYB104K10 CKSRYB102K50 CKSRYB102K50

C 303 C 304

CKSSYB472K25 CKSSYB103K16 CKSSYB104K10 CKSRYB105K10 CCSRCH102J50 CCSRCH102J50 CKSSYB104K10 CKSSYB103K16 CKSSYB104K10 CKSSYB104K10 CKSSYB104K10 CKSQYB475K6R3 CKSSYB471K50 CKSSYB103K16
(A,18,20) (A,17,17) (A,34,15) (A,17,30) (B,25,50) (B,26,51) (B,25,47) (B,28,42) (B,34,43) (A,36,57) (A,24,41) (B,29,45) (B,14,54) (B,14,62)

C C C C C C C C C C

714 722

C 903 C 907

Miscellaneous Parts List
M 1 M 2 Pickup Unit(P10.5)(Service) CXX1942 Motor Unit(SPINDLE) CXC4166 Motor Unit(LOADING/CARRIAGE) CXC4026

6. ADJUSTMENT

6.1 CD ADJUSTMENT
1) Cautions on adjustments In this product the single voltage (3.3V) is used for the regulator. The reference voltage is the REFO1 (1.65V) instead of the GND. If you should mistakenly short the REFO1 with the GND during adjustment, accurate voltage will not be obtained, and the servos misoperation will apply excessive shock to the pickup. To avoid such problems: a. Do not mix up the REFO1 with the GND when connecting the (-) probe of measuring instruments. Especially on an oscilloscope, avoid connecting the (-) probe for CH1 to the GND. b. In many cases, measuring instruments have the same potential as that for the (-) probe. Be sure to set the measuring instruments to the floating state. c. If you have mistakenly connected the REFO1 to the GND, turn off the regulator or the power immediately. Before mounting and removing filters or leads for adjustment, be sure to turn off the regulator. For stable circuit operation, keep the mechanism operating for about one minute or more after the regulator is turned on. In the test mode, any software protections will not work. Avoid applying any mechanical or electrical shock to the mechanism during adjustment. The RFI and RFO signals with a wide frequency range are easy to oscillate. When observing the signals, insert a resistor of 1k ohms in series. The load and eject operation is not guarantied with the mechanism upside down. If the mechanism is blocked due to mistaken eject operation, reset the product or turn off and on the ACC to restore it. 2) Test mode This mode is used to adjust the CD mechanism module. To enter the test mode. While pressing the 4 and 6 keys at the same time, reset. To exit from the test mode. Turn off the ACC and back up. Notes: a. During ejection, do not press any other keys than the EJECT key until the loaded disc is ejected. b. If you have pressed the () key or () key during focus search, turn off the power immediately to protect the actuator from damage caused by the lens stuck. c. For the TR jump modes except 100TR, the track jump operation will continue even if the key is released. d. For the CRG move and 100TR jump modes, the tracking loop will be closed at the same time when the key is released. e. When the power is turned off and on, the jump mode is reset to the single TR (91), the RF amp gain is set to 0dB, and the auto-adjustment values are reset to the default settings.

[Key] Contents Display

[4] + [6] + Reset or [4] + [6] + BU + ACC Test Mode In
[CD] or [SOURCE] Source On TRK MIN SEC
Note)Test mode should use the key of remote control.
[BAND] Power On (T.Offset is adjusted) TRK MIN SEC
[3] Power On (T.Offset is not adjusted) TRK MIN SEC
[2] RF AMP *1 Gain switching TRK MIN SEC
[4] SPINDLE *9 Speed switching TRK MIN SEC

[BAND] Power Off

[3] Focus Close S curve check TRK MIN SEC

[6] Focus Mode switching

[>] CRG +

[<] CRG -

[2] Self-adjusting switching *3 MIN SEC

TRK MIN SEC

Tracking Servo Close
[5] Gop Mode *10 Gop Mode switching TRK MIN SEC

00 or 99

*or 99
[BAND] Power Off TRK MIN SEC
[1] T.Close & AGC Applicable servomechanism TRK MIN SEC
[6] T.Close Applicable servomechanism TRK MIN SEC
[3] RF AGC / RF AGC coefficient display TRK MIN SEC
[2] T.Balance adjustment / T.BAL coefficient display TRK MIN SEC

?tr ?min ?sec

8X 8X 8X or 9X 9X 9X
[1] F,T,RF AGC *7 F.Bias display switching TRK MIN SEC
[3] F,T AGC / F.Bias RF AGC TRK MIN SEC

[>] CRG/TR Jump +

[<] CRG/TR Jump -

[2] Tracking Open

CRG/TR jump value switching TRK MIN SEC

TRK MIN SEC TRK MIN

?tr ?min ?sec *6
[BAND] Power Off TRK MIN SEC [2] Tracking Open

MIN SEC

+ 6 dB 06MIN06SEC06

+ 12 dB 12MIN12SEC12

*2) Focus Close S Curve check setting F EQ measurement setting TRK TRK TRK 00MIN00SEC00 01MIN01SEC01 02MIN02SEC02 (TRK99MIN99SEC99)
*3) F.Offset Display RF.Offset T.Offset Display Switch to the order of the original display
[Key] [BAND] [>] [<] [1] [2] [3]
Operation Test Mode Power On/Off CRG + / TR Jump + (Direction of the external surface) CRG - / TR Jump (Direction of the internal surface) T. CLS & AGC & Applicable servomechanism / AGC,AGC display setting RF Gain switching / Offset adjustment display / T.Balance adjustment / T. Open F. Close,S Curve / Rough Servo and RF AGC / F,T,RF AGC SPDL 1X/2X switching As for the double speed(2x), audio output cannot be supported. Error Rate measurement ON : ERR 30Counts Start BER display data[%] F. Mode switching / Tracking Close / CRGTR Jump Switching

Mechanism CD On Mech Error

System

Power Supply NG
6.4 FREQUENCY CHECK FOR CLOCK

- PCL output

In the normal operation mode (with the detachable panel installed, the ACC switched ON, the standby mode cancelled), shift the TESTIN terminal (IC601 Pin 86) to H. The clock signal is output from the PCL terminal (IC601 Pin 37). The frequency of the clock signal is 625.0kHz that is one 32th of the fundamental frequency. The clock signal should be 625.0kHz. If the clock signal is out of the range, the X'tal (X601) should be replaced with new one.

7. GENERAL INFORMATION

7.1 DIAGNOSIS

7.1.1 DISASSEMBLY

- Removing the Case (not shown)

1. Remove the Case.

- Removing the CD Mechanism Module (Fig.1)

CD Mechanism Module

Remove the four screws.
Disconnect the connector and then remove the CD Mechanism Module.
- Removing the Grille Assy (Fig.2)
Disconnect the connector and then remove the Grille Assy.

Grille Assy

- Removing the Tuner Amp Unit (Fig.3)

Remove the two screws.

Straighten the tabs at three locations indicated. Remove the screw and then remove the Tuner Amp Unit.

Tuner Amp Unit

- How to hold the Mechanism Unit
1. Hold the Upper and Lower Frames. 2. Do not hold the front portion of the Upper Frame, because it is not very solid.
Do not squeeze this area.
- Removing the Upper and Lower Frames
1. With a disc inserted and clamped in the mechanism, remove the two Springs (A), the six Springs (B), and the four Screws. 2. Turn the Upper Frame using the part "a" as a pivot, and remove the Upper Frame. 3. While lifting the Carriage Mechanism, remove it from the three Dampers. Caution: When assembling, be sure to apply some alcohol to the Dampers and assemble the mechanism in a clamped state.

B B a Upper Frame

B B A Damper Damper A Carriage Mechanism Lower Frame

- How to remove the CD Core Unit
1. Apply Shorting Solder to the flexible cable of the Pickup, and disconnect it from the connector. 2. Unsolder the four leads, and loosen the Screw. 3. Remove the CD Core Unit. Caution: When assembling the CD Core Unit, assemble it with the SW in a clamped state so as not to damage it.

Shorting Solder

CD Core Unit Solder
- How to remove the Pickup Unit
1. Make the system in the carriage mechanism mode, and have it clamped. 2. Remove the CD Core Unit and remove the leads from the Inner Holder. 3. Remove the Poly Washer, Change Arm, and Pickup Lock Arm. 4. While releasing from the hook of the Inner Holder, lift the end of the Feed Screw. Caution: When assembling, move the Planet Gear to the load/eject position before setting the Feed Screw in the Inner Holder. Assemble the sub unit side of the Pickup, taking the plate (Chassis) in-between. When treating the leads of the Load Carriage Motor Assy, do not make them loose over the Feed Screw.
Poly Washer Pickup Lock Arm Inner Holder Feed Screw

Change Arm

Planet Gear Pickup Rack

Chassis

Pickup
7.1.2 CONNECTOR FUNCTION DESCRIPTION

ANTENNA JACK REAR OUTPUT

SUBWOOFER OUTPUT FRONT OUTPUT
WIRED REMOTE CONTROL (P680MP,P6800MP)
B.UP GND ACC NC ILM B.REM NC TEL RLFLRL+ FL+ RRFRRR+ FR+
1. BUS+ 2. GND 3. GND 4. NC 5. BUS6. GND 7. BUS L+ 8. ASENB 9. BUS R+ 10. BUS R11. BUS L-

7.2 IC

UPD63763CGJ PE5505A NJM2886DL3-33 Pin No. 3 4-8 9-22 23,38 39-69
PEG142A PEG143A S-1200B33-M5 I/O

PAL007B PML016A PEG144A

PD8153A PD8154A HA12241FP

GP1UX31RK

- Pin Functions (UPD63763CGJ)
Pin Name D.VDD D1.GND reset AB12-8 AD7-0 cs ASTB read write wait INTQ IFMODE0,1 D1.VDD DA.VDD ROUT DA.GND REGC DA.GND LOUT DA.VDD X.VDD XTAL xtal X.GND VDDREG15 PWMSW0 TEST3-1 PWMSW1 TESTEN D1.GND DIN DOUT SCKIN SCKO LRCKIN LRCK xtalen D1.VDD RFCK/HOLD WFCK/MIRR PLCK/RFOK LOCK/RFOK C1D1/C8M/(RA13) C1D2/C16M/(RA12) C2D1/RMUTE C2D2/LMUTE C2D3/SHOCK D1.GND C33M (rcs) RA11 (CKE) ras cas)(LDQM) cas!(UDQM) Function and Operation Power supply for digital circuits Ground for 1.6 V digital circuits Input of reset Address bus 12-8 from the microcomputer Address/data bus 7-0 to the microcomputer Chip selection Address strobe Control signals(read) Control signals(write) Control signals(wait) Interruption signals to the external microcomputer Switching the microcomputer I/F 0, 1 Power supply for 1.6 V digital circuits Power supply for DAC Output of audio for the right channel Ground for DAC Connected to the capacitor for band gap Ground for DAC Output of audio for the left channel Power supply for DAC Power supply for the crystal oscillator Connected to the crystal oscillator(16.9344 MHz) Connected to the crystal oscillator(16.9344 MHz) Ground for the crystal oscillator Control of 1.6 V regulator Setup 0 for PWM output(SD, MD) Connected to Ground Setup 1 for PWM output(FD, TD) Connected to Ground Ground for 1.6 V digital circuits Input of audio data Output of audio data Clock input for audio data Clock output for audio data Input of LRCK for audio data Output LRCK for audio data Permission to oscillate 16.9344 MHz Power supply for 1.6 V digital circuits Output of RFCK/HOLD signal Output of WFCK/MIRR signal Output of PLCK/Output of RFOK Output of LRCK/Output of RFOK Information on error correction/C8M : 8 MHz Information on error correction/C16M : 16 MHz Information on error correction/Mute for Rch Information on error correction/Mute for Lch Information on error correction/Detection of vibration Ground for 1.6 V digital circuits Output of 33.8688 MHz(CLK for SDRAM) DRAM cs Output of DRAM address 11 Output of DRAM CKE Output of DRAM ras Output of DRAM lower cas(LDQM) Output of DRAM upper cas(UDQM)

I/O I/O O O O O O

I I I O I I I I I O O
Function and Operation ROM correction : Data input/output EVOL : Strobe output EVOL : Data output EVOL : Clock output IPBUS : Driver power supply control output IPBUS : Slave ACC sense output Illumination sense input Not Used Model select input Not Used MUTE output Test program input Jack sense Battery indicator Key data input Level indicator Detach sense input Reset of CD output Not Used AD translation power supply input terminal TUNER : Signal level input AD translation reference voltage AD translation power supply input terminal PBUS input PBUS output PBUS clock output

*PEG142A,*PEG143A 50

S-1200B33-M5

5 SHORT CIRCUIT PROTECT

ON/OFF CIRCUIT

REFERENCE VOLTAGE

ON/OFF

*PAL007B

*PML016A

sw_vcc

- Pin Layout

Protector; Over voltage

amp_vcc

TAB 2 P-GND2

Stand-by Circuit

Reference

OUT24 STBY 5 OUT2+

Offset Detection

Protector; Thermal

6 VCC 7

OUT18 P-GND1

9 OUT1+ 10 SVR 11 IN1

IN2 S-GND IN13

OUT3+ IN3 AC-GND 18

Protector; Short circuit
P-GND3 OUT3VCC OUT4+ MUTE OUT4P-GND4 SWITCH 23
stby Protector; Over current limit

Mute circuit

IN4-_L IN4+_L IN3_L IN2_L IN1_L

IN1_R IN2_R IN3_R

- Block Diagram

Soft step Blocks (

S.S. M.S.S. M.S.

SA_out Isolator Isolator

SA_clk Auto Zero Gain Adjuster Input Selector
Spectrum Analyzer & Level Meter

EQ1 Primary Volume

IN4+_R IN4-_R ASL HPF

Front_L

Rear_R

Tout_FL SVin_FL

Tout_RL SVin_RL

Front_R

SVin_PreL Tout_PreL

PRE/SW_L

Tout_PreR SVin_PreR

SVin_RR Tout_RR

SVin_FR Tout_FR

PRE/SW_R

HPF Anti-Alias Filter TRE BASS LPF Phase inv. BASS Digital

MIC_in

Anti-Rad. Filter
Anti-Rad. Filter Anti-Rad. Filter Block Supply & Reference Secondary Volume Secondary Volume Secondary Volume mute mute mute

DC_filter

MIC Amp

Noise_DET_out

CLK DATA STB MUTE

Secondary Volume

DO O DGND NC VDD_3.3 NC NC NC NC AUDIOGND L ch O R ch O
AM antenna input high impedance AMANT pin is connected with an all antenna by way of 4.7H. (LAU type inductor) A series circuit including an inductor and a resistor is connected with RF ground for the countermeasure against the hum of power transmission line. Ground of antenna block Input of FM antenna 75 Surge absorber(DSP-201M-S00B) is necessary. The power supply for analog block. D.C 8.4V 0.3V Output of FM/AM signals level Chip enable for EEPROM Low active Not used Chip enable for AFRF High active Clock Data input Not used Ground of oscillator block Power supply for EEPROM pin 13 is connected with a power supply of micro computer. Data output Ground of digital block Not used The power supply for digital block. 3.3V 0.2V Not used Not used Not used Not used Ground of audio block FM stereo L-ch signal output or AM audio output FM stereo R-ch signal output or AM audio output
7.3 OPERATIONAL FLOW CHART

Power ON

VCC=5V Pin 14
bsens Pin 73 bsens=L asens Pin 72 asens=L DSENS Pin 91 2V<DSENS<4.5V ASENBOH Pin 80
Starts communication with Grille microcomputer.
SWVDDH Pin 38 Source keys operative
300ms In case of the above signal, the communication with Grille microcomputer may fail. If the time interval is not 300msec, the oscillator may be defective.

Source ON

SYSPWH Pin 1
Completes power-on operation. (After that, proceed to each source operation)

8. OPERATIONS

- Jigs List
Name Test Disc L.P.F. Jig No. TCD-782 Remarks Checking the g g grating g Checking the g g grating (Two pieces) g( )

- Grease List

Name Grease Grease Jig No. GEM1024 GEM1045 Remarks CD Mechanism Module CD Mechanism Module
Before shipping out the product, be sure to clean the following portions by using the prescribed cleaning tools: Portions to be cleaned CD pickup lenses Cleaning tools g Cleaning liquid : GEM1004 Cleaning paper : GED-008 gp p