SERVICE MANUAL

CD RECEIVER
KD-AR870J,KD-G820J,KD-G821E, KD-G821EX,KD-G821EY,KD-G821EU, KD-G824UI,KD-G825U,KD-G825UN, KD-G825UH,KD-G825UT,KD-G827EE
Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)

TABLE OF CONTENTS

5 PRECAUTIONS. 1-7 SPECIFIC SERVICE INSTRUCTIONS. 1-10 DISASSEMBLY. 1-11 ADJUSTMENT. 1-15 TROUBLESHOOTING. 1-16
COPYRIGHT 2006 Victor Company of Japan, Limited

No.MA249 2006/2

SPECIFICATION

KD-AR870/KD-G820

AUDIO AMPLIFIER SECTION Power Output Signal to Noise Ratio Load Impedance Tone Control Range Low Mid High Frequency Response Line-In Level/Impedance KD-AR870 KD-G820 Output Impedance Subwoofer-Out Level/Impedance Other Terminals Frequency Range FM AM FM Tuner Usable Sensitivity 50 dB Quieting Sensitivity Frequency Response Stereo Separation AM Tuner Sensitivity Selectivity Type Signal Detection System Number of Channels Frequency Response Dynamic Range Signal-to-Noise Ratio Wow and Flutter MP3 Decoding Format WMA (Windows Media Audio) Decoding Playable USB memory Format Storage Playable Audio Format Max. Current Power Requirement Grounding System Allowable Operating Temperature Dimensions (W H D) Mass (approx.) Installation Size (approx.) Panel Size (approx.) Operating Voltage Line-Out Level/Impedance KD-ARW RMS 4 Channels at 4 and [< or =] 1% THD+N 80 dBA (reference: 1 W into 4 ) 4 (4 to 8 allowance) 12 dB (60 Hz, 80 Hz, 100 Hz, 200 Hz) 12 dB (500 Hz, 1 kHz, 1.5 kHz, 2.5 kHz) 12 dB (10 kHz, 12.5 kHz, 15 kHz,17.5 kHz) 40 Hz to Hz 1.5V/20k load 5.0 V/20 k load (full scale) 4.0 V/20 k load (full scale) 1 k 2.0 V/20 k load (full scale) CD changer, LINE IN (for KD-AR870) TUNER SECTION 87.5 MHz to 107.9 MHz (with channel interval set to 100 kHz or 200 kHz) 87.5 MHz to 108.0 MHz (with channel interval set to 50 kHz) 530 kHz to kHz (with channel interval set to 10 kHz) 531 kHz to kHz (with channel interval set to 9 kHz) 11.3 dBf (1.0 V/75 ) 16.3 dBf (1.8 V/75 ) 40 Hz to Hz 35 dB 20 V 35 dB CD PLAYER/USB MEMORY SECTION Compact disc player Non-contact optical pickup (semiconductor laser) 2 channels (stereo) 5 Hz to Hz 96 dB 98 dB Less than measurable limit MPEG1/2 Audio Layer 3 Max. Bit Rate : 320 kbps Max. Bit Rate : 192 kbps FAT 12/16/32 Less than 4 GB (1 partition type) MP3/WMA Less than 500 mA GENERAL DC 14.4 V (11 V to 16 V allowance) Negative ground 0C to +40C (32F to 104F) 182 mm 52 mm 152 mm (7-3/16" 2-1/16" 6") 188 mm 58 mm 11 mm (7-7/16" 2-5/16" 7/16") 1.4 kg (3.1 lbs) (excluding accessories)
Alternate Channel Selectivity (400 kHz) 65 dB

1-2 (No.MA249)

KD-G821
AUDIO AMPLIFIER SECTION Maximum Power Output Front Rear Continuous Power Output (RMS) Front Rear Load Impedance Tone Control Range Low Mid High Frequency Response Signal-to-Noise Ratio Line-Out Level/Impedance Output Impedance Subwoofer-Out Level/Impedance Other Terminals Frequency Range FM AM FM Tuner Usable Sensitivity 50 dB Quieting Sensitivity Frequency Response Stereo Separation MW Tuner LW Tuner Type Signal Detection System Number of Channels Frequency Response Dynamic Range Signal-to-Noise Ratio Wow and Flutter MP3 Decoding Format WMA (Windows Media Audio) Decoding Format Playable USB memory Format Storage Playable Audio Format Max. Current Power Requirement Grounding System Allowable Operating Temperature Dimensions (W H D) Mass (approx.) Installation Size (approx.) Panel Size (approx.) Operating Voltage Sensitivity Selectivity Sensitivity 50 W per channel 50 W per channel 19 W per channel into 4 , 40 Hz to Hz at no more than 0.8% total harmonic distortion. 19 W per channel into 4 , 40 Hz to Hz at no more than 0.8% total harmonic distortion. 4 (4 to 8 allowance) 12 dB (60 Hz, 80 Hz, 100 Hz, 200 Hz) 12 dB (500 Hz, 1 kHz, 1.5 kHz, 2.5 kHz) 12 dB (10 kHz, 12.5 kHz, 15 kHz, 17.5 kHz) 40 Hz to Hz 70 dB 5.0 V/20 k load (full scale) 1 k 2.0 V/20 k load (full scale) CD changer, Steering wheel remote input TUNER SECTION 87.5 MHz to 108.0 MHz (MW) 522 kHz to kHz (LW) 144 kHz to 279 kHz 11.3 dBf (1.0 V/75 ) 16.3 dBf (1.8 V/75 ) 40 Hz to Hz 30 dB 20 V 35 dB 50 V CD PLAYER/USB MEMORY SECTION Compact disc player Non-contact optical pickup (semiconductor laser) 2 channels (stereo) 5 Hz to Hz 96 dB 98 dB Less than measurable limit MPEG1/2 Audio Layer 3 Max. Bit Rate : 320 kbps Max. Bit Rate : 192 kbps FAT 12/16/32 Less than 4 GB (1 partition type) MP3/WMA Less than 500 mA GENERAL DC 14.4 V (11 V to 16 V allowance) Negative ground 0C to +40C 182 mm 52 mm 152 mm 188 mm 58 mm 11 mm 1.4 kg (excluding accessories)

(No.MA249)1-3

KD-G824
AUDIO AMPLIFIER SECTION Maximum Power Output Front Rear Continuous Power Output (RMS) Front Rear Load Impedance Tone Control Range Low Mid High Frequency Response Signal-to-Noise Ratio Line-Out Level/Impedance Output Impedance Subwoofer-Out Level/Impedance Other Terminal Frequency Range FM Tuner FM AM Usable Sensitivity 50 dB Quieting Sensitivity Frequency Response Stereo Separation AM Tuner Sensitivity Selectivity Type Signal Detection System Number of Channels Frequency Response Dynamic Range Signal-to-Noise Ratio Wow and Flutter MP3 Decoding Format WMA (Windows Media Audio) Decoding Playable USB memory Format Storage Playable Audio Format Max. Current Power Requirement Grounding System Allowable Operating Temperature Dimensions (W H D) Mass (approx.) Installation Size (approx.) Panel Size (approx.) Operating Voltage 50 W per channel 50 W per channel 19 W per channel into 4 , 40 Hz to Hz at no more than 0.8% total harmonic distortion. 19 W per channel into 4 , 40 Hz to Hz at no more than 0.8% total harmonic distortion. 4 (4 to 8 allowance) 12 dB (60 Hz, 80 Hz, 100 Hz, 200 Hz) 12 dB (500 Hz, 1 kHz, 1.5 kHz, 2.5 kHz) 12 dB (10 kHz, 12.5 kHz, 15 kHz, 17.5 kHz) 40 Hz to Hz 70 dB 5.0 V/20 k load (full scale) 1 k 2.0 V/20 k load (full scale) CD changer TUNER SECTION 87.5 MHz to 108.0 MHz 531 kHz to kHz 11.3 dBf (1.0 V/75 ) 16.3 dBf (1.8 V/75 ) 40 Hz to Hz 30 dB 20 V 35 dB CD PLAYER/USB MEMORY SECTION Compact disc player Non-contact optical pickup (semiconductor laser) 2 channels (stereo) 5 Hz to Hz 96 dB 98 dB Less than measurable limit MPEG1/2 Audio Layer 3 Max. Bit Rate : 320 kbps Max. Bit Rate : 192 kbps FAT 12/16/32 Less than 4 GB (1 partition type) MP3/WMA Less than 500 mA GENERAL DC 14.4 V (11 V to 16 V allowance) Negative ground 0C to +40C 182 mm 52 mm 152 mm 188 mm 58 mm 11 mm 1.4 kg (excluding accessories)

1-4 (No.MA249)

KD-G825

(No.MA249)1-5

KD-G827
AUDIO AMPLIFIER SECTION Maximum Power Output Front Rear Continuous Power Output (RMS) Front Rear Load Impedance Tone Control Range Low Mid High Frequency Response Signal-to-Noise Ratio Line-Out Level/Impedance Output Impedance Subwoofer-Out Level/Impedance Other Terminal Frequency Range FM1/FM2 FM3 AM FM Tuner Usable Sensitivity 50 dB Quieting Sensitivity Frequency Response Stereo Separation MW Tuner LW Tuner Type Signal Detection System Number of Channels Frequency Response Dynamic Range Signal-to-Noise Ratio Wow and Flutter MP3 Decoding Format WMA (Windows Media Audio) Decoding Format Playable USB memory Format Storage Playable Audio Format Max. Current Power Requirement Grounding System Allowable Operating Temperature Dimensions (W H D) Mass (approx.) Installation Size (approx.) Panel Size (approx.) Operating Voltage Sensitivity Selectivity Sensitivity 50 W per channel 50 W per channel 19 W per channel into 4 , 40 Hz to Hz at no more than 0.8% total harmonic distortion. 19 W per channel into 4 , 40 Hz to Hz at no more than 0.8% total harmonic distortion. 4 (4 to 8 allowance) 12 dB (60 Hz, 80 Hz, 100 Hz, 200 Hz) 12 dB (500 Hz, 1 kHz, 1.5 kHz, 2.5 kHz) 12 dB (10 kHz, 12.5 kHz, 15 kHz, 17.5 kHz) 40 Hz to Hz 70 dB 5.0 V/20 k load (full scale) 1 k 2.0 V/20 k load (full scale) CD changer TUNER SECTION 87.5 MHz to 108.0 MHz 65.00 MHz to 74.00 MHz (MW) 522 kHz to kHz (LW) 144 kHz to 279 kHz 11.3 dBf (1.0 V/75 ) 16.3 dBf (1.8 V/75 ) 40 Hz to Hz 30 dB 20 V 35 dB 50 V CD PLAYER/USB MEMORY SECTION Compact disc player Non-contact optical pickup (semiconductor laser) 2 channels (stereo) 5 Hz to Hz 96 dB 98 dB Less than measurable limit MPEG1/2 Audio Layer 3 Max. Bit Rate : 320 kbps Max. Bit Rate : 192 kbps FAT 12/16/32 Less than 4 GB (1 partition type) MP3/WMA Less than 500 mA GENERAL DC 14.4 V (11 V to 16 V allowance) Negative ground 0C to +40C 182 mm 52 mm 152 mm 188 mm 58 mm 11 mm 1.4 kg (excluding accessories)

Design and specifications are subject to change without notice. Microsoft and Windows Media are either registered trademarks or trademarks of Microsoft Corporation in the United States and/ or other countries. iPod is a trademark of Apple Computer, Inc., registered in the U.S. and other countries. 1-6 (No.MA249)

SECTION 1 PRECAUTIONS

1.1 Safety Precautions
Burrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of preforming repair of this system.
Please use enough caution not to see the beam directly or touch it in case of an adjustment or operation check.

(No.MA249)1-7

Preventing static electricity
Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged, can destroy the laser diode in the traverse unit (optical pickup). Take care to prevent this when performing repairs. 1.2.1 Grounding to prevent damage by static electricity Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as laser products. Be careful to use proper grounding in the area where repairs are being performed. (1) Ground the workbench Ground the workbench by laying conductive material (such as a conductive sheet) or an iron plate over it before placing the traverse unit (optical pickup) on it. (2) Ground yourself Use an anti-static wrist strap to release any static electricity built up in your body.
(caption) Anti-static wrist strap
(3) Handling the optical pickup In order to maintain quality during transport and before installation, both sides of the laser diode on the replacement optical pickup are shorted. After replacement, return the shorted parts to their original condition. (Refer to the text.) Do not use a tester to check the condition of the laser diode in the optical pickup. The tester's internal power source can easily destroy the laser diode. 1.3 Handling the traverse unit (optical pickup) (1) Do not subject the traverse unit (optical pickup) to strong shocks, as it is a sensitive, complex unit. (2) Cut off the shorted part of the flexible cable using nippers, etc. after replacing the optical pickup. For specific details, refer to the replacement procedure in the text. Remove the anti-static pin when replacing the traverse unit. Be careful not to take too long a time when attaching it to the connector. (3) Handle the flexible cable carefully as it may break when subjected to strong force. (4) It is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it. 1.4 Attention when traverse unit is decomposed *Please refer to "Disassembly method" in the text for the pickup unit. Apply solder to the short land before the flexible wire is disconnected from the connector on the pickup unit. (If the flexible wire is disconnected without applying solder, the pickup may be destroyed by static electricity.) In the assembly, be sure to remove solder from the short land after connecting the flexible wire.

Top chassis

Volume knob

Fig.10

Rear cover Fig.11 f Rear cover f

Fig.12

Switch board

Fig.13

CD mechanism section
For the CD mechanism, please refer the mechanism manual TN2001-1118 (No.MY004). 1-14 (No.MA249)

SECTION 4 ADJUSTMENT

4.1 Adjustment method Standard measuring conditions Power supply voltage Load impedance Output Level KD-ARXXX KD-GXXX DC14.4V(11 to 16V) 20K(2 Speakers connection) Line out 4.0V (Vol. MAX) Line out 2.5V (Vol. MAX) Test instruments required for adjustment (1) Digital oscilloscope (100MHz) (2) Electric voltmeter (3) Digital tester (4) Tracking offset meter (5) Test Disc JVC :CTS-1000 (6) Extension cable for check EXTSH002-22P 1 Standard volume position Balance and Bass &Treble volume : lndication"0" Loudness : OFF How to connect the extension cable for adjusting Caution: Be sure to attach the heat sink and rear bracket onto the power amplifier IC and regulator IC respectively, before supply the power. If voltage is applied without attaching these parts, the power amplifier IC and regulator IC will be destroyed by heat.
Dummy load Exclusive dummy load should be used for AM,and FM. For FM dummy load,there is a loss of 6dB between SSG output and antenna input.The loss of 6dB need not be considered since direct reading of figures are applied in this working standard.

EXTSH002-22P

Side panel Rear bracket

(No.MA249)1-15

SECTION 5 TROUBLESHOOTING

5.1 Feed section

YES Is 4V present at both sides of the feed motor? NO

Check the feed motor.

YES Check the connections Is the voltage output at between the feed motor pin 4 and pin 5 of IC501? and IC501. NO Is the power supply YES Is the voltage input at pin YES present at pin 3, pin of IC501? and pin 21 of IC501? NO Check the connections of CD8V power supply. NO Is the voltage output at pin 12 of IC541? NO Is the power supply present at pins 8,16,25, YES 28,32,53,71 and pin 90 of IC541? NO Check the connections of CD8V power supply.

5.2 Focus section

Check IC501.
YES Check the connections between IC501 and IC541.

Check IC541.

When the lens is moving: 4V Does the S-search waveform appear at IC501 pins 8 and 9? NO Is the voltage input at pin YES 15 of IC501? NO Is the power supply present at pin 3, pin 12 and pin 21 of IC501? NO Check the connections of CD8V power supply. Is the voltage output at pin 9 of IC541? NO YES Check the connections between IC501 and IC541. YES Check IC501. YES Check the pickup and its connections.

Is the power supply present at pins 8,16,25, YES 28,32,53,71 and pin 90 of IC541? NO Check the connections of CD8V power supply.

1-16 (No.MA249)

Spindle section

Is the disk rotated?

YES Does the RF signal appear YES Is the RF waveform at pin 83 of IC541 distorted? at pin 83 of IC541?
NO YES Check the spindle motor Is the voltage output at and its wiring. pin 6 and pin 7 of IC501?
YES Proceed to the Tracking section.
Check the circuits in the vicinity of IC541 or the pickup.
NO Is the voltage input at pin YES 17 of IC501? Is the power supply present at pin 3, pin 12 and pin 21 of IC501?

YES Check IC501.

Check the connections of CD8V power supply. NO Is the voltage output at pin 13 of IC541? NO Is the power supply present at pins 8,16,25, YES 28,32,53,71 and pin 90 of IC541? NO Check the connections of CD8V power supply.

5.4 Tracking section

When the disc is rotated at first:
Replace IC541 or repair Approx. 1.2V YES the malfunction connection point.
Is the tracking error signal output at pin 6 of IC541?
NO Check the pickup and its connections.

(No.MA249)1-17

Signal processing section
Is the sound output from YES Normal both channels (L, R)? NO No sound from either channel. NO Compare the L-ch and R-ch to locate the defective point. NO Is 9V present at pin 13 of IC901? NO Check IC901 and its peripheral circuits.
5.6 Maintenance of laser pickup 5.7
Is 9V present at pin 24 of IC161?
Is the audio signal YES (including sampling YES Is the audio signal output output components) at pin 18 and pin 19 of output to pins 1 and 7 of IC161 during playback? IC581 during playback? NO Check IC581 and its peripheral circuits. NO Check IC161 and its peripheral circuits.
YES Check the connections between pin 24 of IC161 and pin 13 of IC901.
YES Check the power amplifier IC301.
Replacement of laser pickup
(1) Cleaning the pick up lens Before you replace the pick up, please try to clean the lens with a alcohol soaked cotton swab. (2) Life of the laser diode When the life of the laser diode has expired, the following symptoms will appear. The level of RF output (EFM output: amplitude of eye pattern) will be low.
Turn off the power switch and disconnect the power cord.
Replace the pickup with a normal one. (Refer to "Removing the pickup unit" on the previous page.)
Is RF output 1.3 0.4Vp-p?
NO Replace it. Plug the power cord in and turn the power on. At this time, check that the laser emits for about seconds and the objective lens moves up and down. Note: Do not observe the laser beam directly.

YES OK

(3) Semi-fixed resistor on the APC PC board The semi-fixed resistor on the APC printed circuit board which is attached to the pickup is used to adjust the laser power.Since this adjustment should be performed to match the characteristics of the whole optical block, do not touch the semi-fixed resistor. If the laser power is lower than the specified value, the laser diode is almost worn out, and the laser pickup should be replaced. If the semi-fixed resistor is adjusted while the pickup is functioning normally, the laser pickup may be damaged due to excessive current.

Play a disc.

Check the eye-pattern at RF test point or ARF test point.

Finish.

1-18 (No.MA249)
16P CORD DIAGRAM (for KD-AR870)
YL 16 OR/WH 15 NC 14 BR 13
BK RD BL Black Red Blue White Brown GN VI GY YL OR Green Violet Gray Yellow Orange

5 BL/WH

WH/BK 12

GN/BK 11

VI/BK 10

GY/BK 9

16 YL 8 BK 7 RD 15 OR/WH

MEMORY GND ACC ILL

REMOTE
ION! CAUT REMOTE OUTPUT ONLY
3 GN 11 GN/BK 2 VI 10 VI/BK 4 WH 12 WH/BK 1 GY 9 GY/BK
RL+ RLRR+ RRFL+ FLFR+ FR-

RR FR FL RL

Rear Right Front Right Front Left Rear Left Telephone muting
Remote out ACC Line Memory Backup Battery + Ground Illuminations Control

MEMORY

GND ILL

(No.MA249)1-19

16 PIN CORD DIAGRAM (for KD-G820)
YL 16 OR/WH 15 NC 14 NC 13

BK RD BL

GN VI GY
Green Violet Gray Yellow Orange

Red Blue White

16 YL 8 BK 7 RD 15 OR/WH 5 BL/WH
MEMORY GND ACC ILL REMOTE

Rear Front Front Rear

Right Right Left Left
REMOTE ACC MEMORY GND ILL
Remote out ACC Line Backup Battery +

Memory Ground

Illuminations Control

1-20 (No.MA249)

5.PIN CORD DIAGRAM (for KD-G821,KD-G827)

BK RD NC

BK RD BL WH
Black Red Blue White Brown

GN VI GY YL OR

OR/WH 15

NC 14 BR 13

WH/BK 12 GN/BK 11 VI/BK GY/BK

WH GN VI GY

BL/WH OR/WH
RD 7 RD 16 YL 15 OR/WH 8 BK 6 BL/WH 13 BR ACC MEMORY ILL GND REMOTE TEL

RD 7 YL 2

3 GN 11 GN/BK 2 VI 10 VI/BK 4 WH

12 WH/BK 1 GY 9 GY/BK

1 VI 3 GY RR FR FL RL REMOTE ILL Rear Right Front Right Front Left Rear Left Remote Illuminations Control ANT ACC TEL GND Auto Antenna ACC Line Telephone Muting Ground 5 WH 7 GN

VI/BK GY/BK WH/BK GN/BK

MEMORY Memory Backup Battery+

(No.MA249)1-21

5.PIN CORD DIAGRAM (for KD-G824,KD-G825)

BK RD BL BL/WH YL

OR/WH 15 NC BR 14 13

Black Red Blue

Green Violet Gray

WH White

WH/BK 12 GN/BK VI/BK GY/BK 9

Yellow

Orange
16 YL 8 BK 7 RD 15 OR/WH 13 BR 3 GN 11 GN/BK 2 VI 10 VI/BK 4 WH 12 WH/BK 1 GY 9 GY/BK 5 BL/WH
MEMORY GND ACC ILL TEL RL+ RLRR+ RRFL+ FLFR+ FRREMOTE

RR FR FL RL REMOTE TEL

1-22 (No.MA249)

ANT ACC ILL GND MEMORY

POWER ANTENNA

Auto ACC

Antenna Line Control
Illuminations Ground Memory
Remote out Telephone muting

Backup

Battery+

(No.MA249)1-23

Victor Company of Japan, Limited Mobile Entertainment Business Group Mobile Entertainment Category 10-1,1chome,Ohwatari-machi,Maebashi-city,Gumma-ken, 371-8543,Japan

(No.MA249)

Printed in Japan VPT

SCHEMATIC DIAGRAMS

KD-AR870J,KD-G820J,KD-G821E,KD-G821EX KD-G821EY,KD-G821EU,KD-G824UI,KD-G825U KD-G825UN,KD-G825UH,KD-G827EE

CD-ROM No.SML200602

Contents
Block diagram Standard schematic diagrams Printed circuit boards 2-1 2-3 2-19 to 21

COPYRIGHT

2006 Victor Company of Japan, Limited.

No.MA249SCH 2006/2

Safety precaution
! Burrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of preforming repair of this system.

< MEMO >

Block diagram

CD servo control section

IC581 CD LPF

CD.L CD.R

Main amplifier sec

OUTL, OUTR

IC503 24BIt DAC

DACMS, DACMC, DACMD

BCK LRCK DATA

IC501 CLOCK GEN.

FMO, DMO TRO, FOO

IC501 CD DRIVER

FEED+, FEEDSPINDLE+, SPINDLETRACKING+, TRACKINGFOCUS+, FOCUS-, VREF LM0,LM1

IC541 D.SERVO & DSP

DBUS0 to 3 DBUCK, /DCCE /DRST, DREQ SFSY, SRAMSTB VF1, VF2, VT1, VT2 MD, LD, VREF

F531 NAD0031-004X

R533 D532 D533

C521 4.7/16

IC521 BH18LB1WG-W

K531 NQR0201-004X

CN532 QGB1004K1-16

R454 10

IC451 AK4385ET-X

4.7K R471 4.7K

R473 22k

C471 3300P R475

4.7K R474 C472 470P

R478 200

C473 470P

C475 47/10 1K R479

C454 47/10

0.47 C531

C522 0.1/16

R476 R477

22k 4.7K

STATICGND

0.1/16 1.2K R470 C474

C455 0.1/16

C465 47/10

R463 22k

0.047 C453 R453

C451 330p

4.7K R464

1K R469

1.2K R460

0.1/16 C464

IC452 NJM4565V-X

R461 4.7K R462 4.7K

200 R465 C461 3300P

0.1/16

0 C452
C463 470P RR467 R466 4.7K 22k

C457 47/10

R455 A9V 10 R-CH

0TFI021A

C442 22/6.3
C449 XD15 XD14 XD13 XD12 C446 XD11 XD10 XD9 XD8 0.1 C447 XA20 SD_CLK SD_CKE XA9 XA8 XA7 XA6 XA5 XA4 0.1/16 C445

Q401 RT1N141C-X

D600 SML-310LT/MN/-X

IC442 K4S161622H-UC60

R425 10K

K441 NQR0502-001X

CN600 QGA1501C6-02
XD0 XD1 XD2 XD3 XD4 XD5 XD6 XD7 XA21 WE XA15 XA16 SD_CS XA13 XA10 XA0 XA1 XA2 XA3
XD15 XD7 XD14 XD6 XD13 XD5 XD12 XD4 XD11 XD3 XD10 XD2 XD9 XD1 XD8 XD0 R448 OE 47K NOR_CS 0.1/16 XA0 C441

C443 0.1/16

C444 0.1/16

R484 10K

C481 0.1/16

UART_TX

UART_RX

IC482 SN74AHCT1G08V-X

IC481 SN74LVC2G07V-X

R483 10K

UART_RX1 TRST1
Main section (for KD-G821)
IC161 TDA7419-X ! TU1 QAU0451-001 C165 0.47 C164 0.47 RC16 10/16

R168 R167 R166 R164 R165

C161 R81 12K 12K TU.L TU.R C183 C181 C163 R91

L1 4.7u

R71 IC71
C171 1/50 R73 R75 2.2K 0 33P CH.L C192 1/50 CH.R Q191 RT1N141C-X R195 RRDSSCK USBL C172 1/50 RR193 2.2k

2K 10/16

CN702 QGB1004J2-16X

X71 QAX0263-001Z C76 33P

USBRX USBTX USBRST L706 47u RUSB_M USBL
/RST LM0 SW2 SW1 PSW CD_8V CD.L GND 9V CD.R VDD_5V IC701 UPD784218AGC326
CD_ON SRAMSTB BUS0 BUS1 BUS2 BUS3 BUCK /CCE REQ DACMC DACMD DACMS SFSY R772 R773 R790 47K R774 BUCK /CCE /RST R779 BUS0 BUS1 BUS2 BUS3 AMPSW R785 USBRST R786 VDD 47K 10K R780 R781 R782 R783 R100 1K

R332 R331

C192 C385

Q881 R881 C881 PP1 C543 C532 R535A C533 R541 R542 R545 C545 C544 R307 R527

Q581 R528 Q582 C306 C316

C386 C366 C362

R386 C381

R551 R548 C572 C573 C565

C365 C363

R383 C2 C4 C94 C92 C82 C84

R382 R163 C163

Q782 D781
C1 R361 R360 C361 C372 R392 C181 C171 C191

C173 C3

R168 R167 C183
C722 R768 R165 R164 D161 D162

C781 C516 B305

C319 D782 C942 R941

R787 R701 D709

C182 C162 R599

R772 R773 R774

CN501 C502

R91 C91 C81

C161 Q192 R758

R761 R763

R502 R503

Q571 VREF

C575 C538

R74 R775

C504 R505 R504

C78 C76 C77

R714 R713
C707 R767 C709 R786 R779 R785 R784

R10 C7

C72 C724 D715

R765 R702 C713

X701 R596 R595 R597 C715 C716

Q5002 B502

R583 B501 R593
R517 C580 C733 C556 R560 R547

R725 R723

R740 R742

C714 R704 X702

R720 R721 TD
R5006 C596 R5016 C593 C590

C547 B504

C723 VSS C719 C914

C5004 Q5001

R808 R810 R809 R805

D701 R789

C529 C526

C5003 C528

R576 R575 R579 R574 R572

C915 C706 R841 C841

R804 R807 R806

R5003 C5002

D705 D704 D703 D702

R803 R802 R801

D707 D708

S703 BZ841

R533 R534 R535

R456 R457

C422 C424 C423

R453 R458 R460 R462 R461

R468 R455 R454 R4007 R4010

C410 C411 C412

R448 R449 R452

Q429 R469

R451 R466

C409 C414 C415

Q424 Q425

C426 R498

T1-5 T1-6 D436 D437

D446 D447

D428 C457 D438 R4003

R4005 R4004 C421

R4026 R4025

C418 C417 L401

R447 R446

D421 D422

D434 D435

R435 R432

C458 T1-9 C401 R4002

C404 C407

R437 R438 R439 R440 R441

C431 C433 C436

C435 C437 C439 C441 C445 C446 C447

C403 R407

C438 C440 C443

R443 R442 C406 C405

C448 C449 C450 C430 C434 C442

R444 R445 R465

D423 D424

SBD SBT RST

Q428 T1-4 Q430

Q412 Q413

R4008 R4006

R434 R450 C420

R573 R571 R570

C522 R525

R540 R539 R537 R536

R585 R586

R363 R362 R368

R546 C551 C548

R367 R366 R2

R380 R381

USB board

(USB board)

R443 R444 IC521 C522 C521 R441 R435

X402 RA401 L401

R532 R533 R422

R403 C404

R469 R479 R460 R470 C465 C475

reverse side (USB board)

R468 R467 R466
R455 C457 R453 R419 R420 IC451 C463

C415 C416

K441 IC442

C414 R414 R454

C410 C411 C412 C413 R405 R404 R415 R416

C452 R452 C453 R451 C451

C444 C443

C447 R409

C449 L531 C446

C407 R411 C408 C409 C406

R418 R417

(Connector board)

D601 D600 R407 R406 C419 C420
C448 C474 R473 R474 C455 C472

R401 R402 R408

C471 R475 R478 R477 R476 R445 CN532

C482 IC481 C473

R436 R432 R433 R399 R398

R471 R472

K531 R531
D533 C531 R446 IC482 R439 R440

IC452 C456

R461 R462

R410 C440

C461 C464 R465 R463 R464 C462

R482 R484 R483 R425

Victor Company of Japan, Limited Mobile Entertainment Business Group Mobile Entertainment Category 10-1,1chome,Ohwatari-machi,Maebashi-city,Gumma-ken,371-8543,Japan

(No.MA249SCH)

PARTS LIST
KD-AR870J,KD-G820J,KD-G821E,KD-G821EX KD-G821EY,KD-G821EU,KD-G824UI,KD-G825U KD-G825UN,KD-G825UH,KD-G825UT,KD-G827EE
* All printed circuit boards and its assemblies are not available as service parts. * Please refer to the mechanism manual (model TN2001-1118, No.MY004) for the CD mechanism.
- Contents Exploded view of general assembly and parts list (Block No.M1) Electrical parts list (Block No.01~09) Packing materials and accessories parts list (Block No.M3)

3- 2 3- 6 3-28

Exploded view of general assembly and parts list

Block No. M 1 M M

Switch board USB boa

KD-AR870

KD-G821 7

c b G b F

General Assembly

Block No. [M][1][M][M]

Symbol No. Part No. GE10153-001A GE32125-001A QYSDST2604ZA GE40235-001A GE40235-004A QYSDST2604ZA QYSDST2606ZA QYSDST2610ZA QYSDSF2006ZA QYSDST2004ZA QYSDST2610ZA QYSDST2604ZA FSYH4036-100 GE32144-001A GE32173-001A GE32173-002A GE32136-001A GE32136-002A GE40202-015A GE32116-001A GE32117-001A GE32118-002A GE32119-001A GE32120-001A GE32121-001A GE40154-001A QZW0108-002 GE40202-014A GE40301-001A GE40303-003A GE40304-001A GE40305-001A GE40156-001A QYSDSF2008ZA VKZ4777-010 GE10150-018A GE10150-024A GE10150-025A GE10150-026A GE10150-027A GE10150-028A GE32143-018A GE32143-009A GE32143-010A GE40314-001A GE32135-001A GE20193-001A GE20193-002A GE32137-002A GE32137-001A GE32134-001A GE32133-001A GE32138-001A GE32138-002A GE32139-001A GE40202-016A VKZ4777-010 GE10151-001A VKZ4777-010 VKZ4777-011 GE32140-002A GE32142-001A GE32141-002A GE40313-001A GE40321-001A LV40846-036A LV40848-034A LV43084-001A LV43912-001A GE32127-001A Part Name TOP CHASSIS SIDE PANEL TAP SCREW SCREW SCREW TAP SCREW TAP SCREW TAP SCREW TAP SCREW TAP SCREW TAP SCREW TAP SCREW SHEET F.CHASSIS ASSY FRONT COVER ASS FRONT COVER ASS EJECT BUTTON EJECT BUTTON COMP.SPRING LOCK LEVER GUID LOCK LEVER(L) DETACH LEVER LOCK LEVER (TOP LOCK LEVER(R) OPEN LEVER GEAR OIL DAMPER COMPRESSION SPRING T.SPRING T.SPRING T.SPRING T.SPRING BLIND TAP SCREW MINI SCREW FRONT PANEL FRONT PANEL FRONT PANEL FRONT PANEL FRONT PANEL FRONT PANEL FINDER ASSY FINDER ASSY FINDER ASSY VOLUME KNOB ASS BAND DISP BTN PRESET BUTTON PRESET BUTTON UP/DOWN BTN UP/DOWN BTN SRC BUTTON RIM COVER DETACH BTN TOP DETACH BTN TOP DETACH BTN BASE COMP.SPRING MINI SCREW REAR COVER MINI SCREW MINI SCREW LCD CASE LENS LENS CASE LIGHTING SHEET SHEET SPACER(F) SPACER(P) DOUBLE FACE SHEET BOTTOM COVER Description Local

Description 1k 1/16W J 100k 1/16W J 100k 1/16W J 2.2k 1/16W J 2.2k 1/16W J 100k 1/16W J 10k 1/16W J 10k 1/16W J 15k 1/16W J 1k 1/16W J 1k 1/16W J 47k 1/16W J 47k 1/16W J 1.5k 1/16W J 1.5k 1/16W J 1.5k 1/16W J 10k 1/16W J 330 1/16W J 47k 1/16W J 470k 1/16W J 47k 1/16W J 47k 1/16W J 390 1/16W J 390 1/16W J 390 1/16W J 560 1/16W J 560 1/16W J 560 1/16W J 390 1/16W J 390 1/16W J 390 1/16W J 390 1/16W J 390 1/16W J 390 1/16W J 560 1/16W J 560 1/16W J 560 1/16W J 390 1/16W J 390 1/16W J 390 1/16W J 0 1/16W J 470 1/16W J 470k 1/16W J 100k 1/16W J 1k 1/16W J 1k 1/16W J 47k 1/16W J 47k 1/16W J 1k 1/16W J 68 1/16W J 68 1/16W J 0 1/16W J 0 1/16W J 68 1/16W J 68 1/16W J 100 1/8W J 300 1/16W J 270 1/16W J 10k 1/16W J 330 10k 47uH K FFC/FPC (1-35)
Symbol No. S404 S405 S406 S407 S408 S409 S410 S411 S412 S413 S414 S415 S416 TH401 X401
Part No. NSW0206-001X NSW0206-001X NSW0206-001X NSW0206-001X NSW0206-001X NSW0206-001X NSW0206-001X NSW0206-001X NSW0206-001X NSW0206-001X NSW0206-001X NSW0206-001X NSW0206-001X NAD0028-103X NAX0652-001X
Part Name SWITCH SWITCH SWITCH SWITCH SWITCH SWITCH SWITCH SWITCH SWITCH SWITCH SWITCH SWITCH SWITCH N THERMISTOR RESONATOR
USB board (KD-GAR870,G820,G824,G825)

Block No. [0][7]

Symbol No. C402 C403 C404 C406 C407 C408 C409 C410 C411 C412 C413 C414 C415 C416 C417 C418 C419 C420 C440 C441 C442 C443 C444 C445 C446 C447 C448 C449 C451 C453 C454 C455 C456 C457 C461 C462 C463 C464 C465 C471 C472 C473 C474 C475 C481 C482 C521 C522 C531 R398 Part No. NCB31CK-104X NCB31CK-104X NCB31CK-104X NCB31CK-104X NDC31HJ-270X NDC31HJ-270X NCB31CK-104X NCB31CK-104X NDC31HJ-331X NCB31CK-104X NCB31CK-104X NCB31CK-104X NCB31CK-104X NCB31CK-104X NCB31CK-104X NCB31CK-104X NCB31CK-104X NCB31CK-104X NCB31AK-154X NCB31CK-104X NBE20JM-226X NCB31CK-104X NCB31CK-104X NCB31CK-104X NCB31CK-104X NCB31CK-104X NBE20JM-226X NCB31CK-104X NCB31HK-331X NCB31CK-473X NBE41AM-476X NCB31CK-104X NCB31CK-104X NBE41AM-476X NCB31HK-332X NCS31HJ-471X NCS31HJ-471X NCB31CK-104X NBE41AM-476X NCB31HK-332X NCS31HJ-471X NCS31HJ-471X NCB31CK-104X NBE41AM-476X NCB31CK-104X NCB31CK-104X NBE21CM-475X NCB31CK-104X NCB31AK-474X NRSA63J-0R0X Part Name C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR TA E CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR TA E CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR TA E CAPACITOR C CAPACITOR C CAPACITOR TA E CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR TA E CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR TA E CAPACITOR C CAPACITOR C CAPACITOR TA E CAPACITOR C CAPACITOR C CAPACITOR MG RESISTOR Description 0.1uF 16V K 0.1uF 16V K 0.1uF 16V K 0.1uF 16V K 27pF 50V J 27pF 50V J 0.1uF 16V K 0.1uF 16V K 330pF 50V J 0.1uF 16V K 0.1uF 16V K 0.1uF 16V K 0.1uF 16V K 0.1uF 16V K 0.1uF 16V K 0.1uF 16V K 0.1uF 16V K 0.1uF 16V K 0.15uF 10V K 0.1uF 16V K 22uF 6.3V M 0.1uF 16V K 0.1uF 16V K 0.1uF 16V K 0.1uF 16V K 0.1uF 16V K 22uF 6.3V M 0.1uF 16V K 330pF 50V K 0.047uF 16V K 47uF 10V M 0.1uF 16V K 0.1uF 16V K 47uF 10V M 3300pF 50V K 470pF 50V J 470pF 50V J 0.1uF 16V K 47uF 10V M 3300pF 50V K 470pF 50V J 470pF 50V J 0.1uF 16V K 47uF 10V M 0.1uF 16V K 0.1uF 16V K 4.7uF 16V M 0.1uF 16V K 0.47uF 10V K 0 1/16W J Local

Symbol No. R399 R401 R402 R403 R404 R405 R406 R407 R408 R409 R410 R411 R412 R414 R415 R416 R417 R418 R420 R421 R425 R426 R435 R436 R437 R441 R444 R446 R447 R448 R451 R452 R453 R454 R455 R460 R461 R462 R463 R464 R465 R466 R467 R468 R469 R470 R471 R472 R473 R474 R475 R476 R477 R478 R479 R482 R483 R484 R532 R533 RA401 L401 L531 CN531 CN532 CN600 F531 K441 X402
Part No. NRSA63J-0R0X NRSA63J-0R0X NRSA63J-0R0X NRSA63J-0R0X NRSA63J-472X NRSA63J-472X NRSA63J-472X NRSA63J-0R0X NRSA63J-0R0X NRSA63J-102X NRSA63J-0R0X NRSA63J-152X NRSA63J-105X NRSA63J-0R0X NRSA63J-0R0X NRSA63J-0R0X NRSA63J-0R0X NRSA63J-0R0X NRSA63J-104X NRSA63J-472X NRSA63J-103X NRSA63J-0R0X NRSA63J-472X NRSA63J-472X NRSA63J-472X NRSA63J-102X NRSA63J-0R0X NRSA63J-472X NRSA63J-0R0X NRSA63J-473X NRSA63J-473X NRSA63J-0R0X NRSA63J-4R7X NRSA63J-100X NRSA63J-100X NRSA63J-122X NRSA63J-472X NRSA63J-472X NRSA63J-223X NRSA63J-472X NRSA63J-201X NRSA63J-223X NRSA63J-472X NRSA63J-201X NRSA63J-102X NRSA63J-122X NRSA63J-472X NRSA63J-472X NRSA63J-223X NRSA63J-472X NRSA63J-201X NRSA63J-223X NRSA63J-472X NRSA63J-201X NRSA63J-102X NRSA63J-103X NRSA63J-103X NRSA63J-103X NRSA63J-153X NRSA63J-153X NRZ0065-472X NQL38DK-330X NQR0536-001X QNZ0855-001 QGB1004K1-16 QGA1501C6-02 NAD0031-004X NQR0502-001X NAX0832-001X
Part Name MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR COIL CHOKE COIL USB CONNECTOR CONNECTOR CONNECTOR N THERMISTOR FERRITE BEADS CRYSTAL