Sony CDX-GT81UW Service Manual
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- Operating instructions manual (48 pages) ,
- Installation/connections (2 pages) ,
- Limited warranty (1 page)
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CDX-GT81UW/GT860U
SERVICE MANUAL
Ver. 1.1 2007.03
• The tuner and CD sections have no adjustments.
AUDIO POWER SPECIFICATIONS (CDX-GT81UW)
POWER OUTPUT AND TOTAL HARMONIC DISTORTION
23.2 watts per channel minimum continuous average power into
4 ohms, 4 channels driven from 20 Hz to 20 kHz with no more
than 5% total harmonic distortion.
CD player section
Signal-to-noise ratio
120 dB
Frequency response
10 – 20,000 Hz
Wow and flutter
Below measurable limit
Tuner section
FM
Tuning range
CDX-GT81UW:
87.5 – 107.9 MHz
CDX-GT860U:
87.5 – 108.0 MHz (at 50 kHz step)
87.5 – 107.9 MHz (at 200 kHz step)
FM tuning interval
CDX-GT860U:
50 kHz/200 kHz switchable
Antenna terminal
External antenna connector
Intermediate frequency 10.7 MHz/450 kHz
Usable sensitivity
9 dBf
Sony Corporation
9-887-514-02
eVehicle Division
2007C04-1
Published by Sony Techno Create Corporation
© 2007.03
(Photo: CDX-GT81UW)
Model Name Using Similar Mechanism
CD Drive Mechanism Type
Optical Pick-up Name
SPECIFICATIONS
Selectivity
Signal-to-noise ratio
Harmonic distortion at 1 kHz
Separation
Frequency response
AM
Tuning range
AM tuning interval
Antenna terminal
Intermediate frequency 10.7 MHz/450 kHz
Sensitivity
FM/AM COMPACT DISC PLAYER
US Model
CDX-GT81UW
E Model
CDX-GT860U
CDX-GT41UW/GT410U/
GT460U/GT460US
MG-101U-188//Q
DAX-25A
75 dB at 400 kHz
67 dB (stereo), 69 dB (mono)
0.5% (stereo), 0.3% (mono)
35 dB at 1 kHz
30 – 15,000 Hz
CDX-GT81UW:
530 – 1,710 kHz
CDX-GT860U:
531 – 1,602 kHz (at 9 kHz step)
530 – 1,710 kHz (at 10 kHz step)
CDX-GT860U:
9 kHz/10 kHz switchable
External antenna connector
30 µV
– Continued on next page –
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Related Manuals for Sony CDX-GT81UW
Summary of Contents for Sony CDX-GT81UW
- Page 1 Antenna terminal External antenna connector Usable sensitivity 9 dBf Intermediate frequency 10.7 MHz/450 kHz 30 µV Sensitivity – Continued on next page – FM/AM COMPACT DISC PLAYER Sony Corporation 9-887-514-02 eVehicle Division 2007C04-1 Published by Sony Techno Create Corporation © 2007.03...
- Page 2 COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
- Page 3 CDX-GT81UW/GT860U • This compact disc player is classified as a CLASS 1 LASER UNLEADED SOLDER product. The CLASS 1 LASER PRODUCT label is located on the Boards requiring use of unleaded solder are printed with the lead- exterior. free mark (LF) indicating the solder contains no lead.
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Page 4: Table Of Contents
CDX-GT81UW/GT860U Ver. 1.1 TABLE OF CONTENTS SERVICE NOTE ............5 GENERAL Location of Controls ............6 Connections ..............7 DISASSEMBLY 3-1. Base Panel Assy ............... 12 3-2. Sub Panel Assy ..............12 3-3. CD Mechanism Block ............. 13 3-4. Driving Section (DB-F07) ..........13 3-5. -
Page 5: Service Note
CDX-GT81UW/GT860U SECTION 1 SERVICE NOTE EXTENSION CABLE AND SERVICE POSITION When repairing or servicing this set, connect the jig (extension cable) as shown below. • Connect the MAIN board (CNP301) and the SERVO board (CN2) with the extension cable (Part No. J-2502-076-1). -
Page 6: General
CDX-GT81UW/GT860U SECTION 2 GENERAL This section is extracted from instruction manual. • LOCATION OF CONTROLS • CDX-GT81UW Location of controls and basic operations Main unit K USB terminal 9 wf SOUND button To enter sound setting. (front panel release) button 5... -
Page 7: Connections
CDX-GT81UW/GT860U • CONNECTIONS • CDX-GT81UW Connection example Notes (2- A ) • Be sure to connect the ground (earth) lead before connecting the amplifi er. AUDIO OUT • The alarm will only sound if the built-in amplifi er is used. - Page 8 CDX-GT81UW/GT860U Source selector (not supplied) Supplied with the CD/MD changer Selector de fuente Suministrado con el cambiador de CD/MD (no suministrado) XA-C40 BUS AUDIO IN AUDIO OUT REMOTE FRONT SUB OUT (MONO) AUDIO AUDIO AUDIO RCA pin cord (not supplied)
- Page 9 CDX-GT81UW/GT860U • CDX-GT860U Connection example Notes (2- A ) • Be sure to connect the ground (earth) lead before connecting the amplifi er. AUDIO OUT • The alarm will only sound if the built-in amplifi er is used. FRONT Tip (2- B - ) For connecting two or more CD/MD changers, the source selector XA-C40 (not supplied) is necessary.
- Page 10 CDX-GT81UW/GT860U Source selector (not supplied) Selector de fuente Supplied with the CD/MD changer (no suminidtrado) Suministrado con el cambiador de CD/MD XA-C40 BUS AUDIO IN AUDIO OUT REMOTE FRONT SUB OUT (MONO) AUDIO AUDIO RCA pin cord (not supplied) AUDIO...
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Page 11: Disassembly
CDX-GT81UW/GT860U Ver. 1.1 SECTION 3 DISASSEMBLY Note: This set can be disassemble according to the following sequence. 3-1. BASE PANEL ASSY (Page 12) 3-2. SUB PANEL ASSY (Page 12) 3-3. CD MECHANISM BLOCK (Page 13) 3-4. DRIVING SECTION (DB-F07) 3-6. -
Page 12: Base Panel Assy
CDX-GT81UW/GT860U Note: Follow the disassembly procedure in the numerical order given. 3-1. BASE PANEL ASSY 2 two screws (panel F) 5 bracket (PWB) 8 base panel assy 1 two screws (panel F) 6 FLEXIBLE board (36 core) (CN905) (Take care not to pull the... -
Page 13: Cd Mechanism Block
CDX-GT81UW/GT860U 3-3. CD MECHANISM BLOCK 8 CD mechanism block 6 two screws (+PTT 2.6 × 4) 5 CN802 (3P) 7 bracket (CD) 2 screw (+PTT 2.6 × 6) 4 CNP301 1 screw (+PTT 2.6 × 6) 3-4. DRIVING SECTION (DB-F07) 3 screw (+PTT 2.6 ×... -
Page 14: Main Board
CDX-GT81UW/GT860U 3-5. MAIN BOARD 9 two screws 8 screw (+P 2.6 × 8) 2 two screws 6 screw (+PTT 2.6 × 10) (+PTT 2.6 × 8) (+PTT 2.6 × 8) 0 two screws (+PTT 2.6 × 12) qd heat sink... -
Page 15: Chassis (T) Sub Assy
CDX-GT81UW/GT860U 3-7. CHASSIS (T) SUB ASSY 2 two precision screws 1 two precision screws (+P 1.7 × 2.2) (+P 1.7 × 2.2) 4 chassis (T) sub assy 3 claw 3-8. ROLLER ARM ASSY 5 roller arm assy 4 gear (RA1) -
Page 16: Chassis (Op) Assy
CDX-GT81UW/GT860U Ver. 1.1 3-9. CHASSIS (OP) ASSY 6 chassis (OP) assy 1 tension spring (KF) 7 coil spring (damper) (natural) 8 coil spring (damper) (green) 4 slider (R) 3 lever (D) 2 gear (LE1) -
Page 17: Diagnosis Function
CDX-GT81UW/GT860U SECTION 4 DIAGNOSIS FUNCTION Description of the Diagnostics function: 4. Contents of each display mode 4-1. Reset count display mode 1. Setting the Diag display mode DIAG With the power off, press the [4] button, [5] button, and [4] button on the set body or the remote control (for more than 2 seconds) in turn. - Page 18 CDX-GT81UW/GT860U 4-4. Operating hours display mode The display mode is switched by each rotation of [4/GP/ALBM+] or [3/GP/ALBM--] keys during the CD error information display mode. DIAG XXXX CD error info history 1 (latest) Error description plus error details display...
- Page 19 CDX-GT81UW/GT860U 4-6. OFFSET/FAILURE error display mode 4-7. USB error information display mode 4-7-1. Error description DIAG DIAG XXXXX Error information Indication Description Operating hours DEVICE ERROR Error description Error description FILE ERROR (0: OFFSET, 1: FAILURE) (in hexadecimal (NO MUSIC)
- Page 20 CDX-GT81UW/GT860U The display mode is switched by each rotation of [2/GP/ALBM+] or [1/GP/ALBM--] keys during the CD error information display mode. USB error info history 1 (latest) Error description plus error details display DIAG USB error info history 1 (latest)
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Page 21: Diagrams
CDX-GT81UW/GT860U SECTION 5 DIAGRAMS 5-1. BLOCK DIAGRAM — MAIN SECTION — ELECTRONIC VOLUME SIGNAL AMP PJ401 (1/2) IC401 IC402 PJ401 (2/2) AUDIO OUTR1 OUT(RL) AUDIO OUT BUS-RCH OUTR2 R-CH REAR MUTE R-CH 1 BUS-LCH Q181 BUS-RCH 2 BUS-RCH OUTF1 OUT(FL) -
Page 22: Block Diagram -Display Section
CDX-GT81UW/GT860U 5-2. BLOCK DIAGRAM — DISPLAY SECTION — FL900 VACUUM DISPLAY CONTROL FLUORESCENT DISPLAYS IC901 85 KEY 1 KEY 2 MATRIX LAT TA2 OUT SYSTEM CONTROL VDD1 FL VDD+3.3V LSW901 (1/2)–915 (1/2) IC303 (2/2) S903,904, VDD2 FL VDD+55V 906 (2/2) - Page 23 CDX-GT81UW/GT860U • NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS • WAVEFORMS — MAIN Board — — DISPLAY Board — THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is IC303 8 (XCIN) IC901 qd (XIN) printed in each block.)
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Page 24: Printed Wiring Boards -Main Section
CDX-GT81UW/GT860U 5-3. PRINTED WIRING BOARDS — MAIN SECTION — : Uses unleaded solder. • Semiconductor Location Ref. No. Location Ref. No. Location D101 B-10 IC110 E-10 (D102) (IC201) (D103) (IC301) (D104) E-10 IC302 (D105) E-10 IC303 D106 IC401 D108 IC402... - Page 25 CDX-GT81UW/GT860U PJ401 CNJ101 CNP102 (REMOTE IN) (BUS CONTROL IN) R505 C232 C227 CNP102 C228 C188 C205 FB111 F901 C210 C215 C211 C242 C142 C288 C178 C278 IC201 D112 JR607 CNP101 R242 C112 R142 R185 R285 D110 D102 R175 R275 D103...
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Page 26: Schematic Diagram -Main Section (1/4)
CDX-GT81UW/GT860U 5-4. SCHEMATIC DIAGRAM — MAIN SECTION (1/4) — • Refer to page 33 for IC Block Diagrams. TUX501 Q501 L503 R485 IC470 R504 R501 C502 C501 D501 PJ501 IC B/D IC B/D R484 C513 C475 R505 IC402 FB502 IC401... -
Page 27: Schematic Diagram -Main Section (2/4)
CDX-GT81UW/GT860U 5-5. SCHEMATIC DIAGRAM — MAIN SECTION (2/4) — • Refer to page 35 for IC Block Diagrams. PJ401 C210 C228 C205 C227 CN401 C215 FB402 C278 C178 C142 C242 IC B/D D111 C442 C188 C288 D110 R402 C443 R142... -
Page 28: Schematic Diagram -Main Section (3/4)
CDX-GT81UW/GT860U • Refer to page 23 for Waveforms. • Refer to page 33 for IC Block Diagrams. 5-6. SCHEMATIC DIAGRAM — MAIN SECTION (3/4) — • Refer to page 37 for IC Pin Description of IC303. (Page 26) (Page 27) -
Page 29: Schematic Diagram -Main Section (4/4)
CDX-GT81UW/GT860U 5-7. SCHEMATIC DIAGRAM — MAIN SECTION (4/4) — • Refer to page 34 for IC Block Diagrams. (Page 27) IC601 IC602 L603 FB601 L601 CN802 C610 C607 (2/2) R606 R607 C611 CN101 C601 C605 R619 R601 L602 C612 CN801... -
Page 30: Printed Wiring Boards -Display Section
CDX-GT81UW/GT860U 5-8. PRINTED WIRING BOARDS — DISPLAY SECTION — : Uses unleaded solder. LSW915 S904 LSW915 LSW901 LED926 LSW906 LSW905 LSW902 LED923 LSW904 LSW903 LSW912 LSW911 LSW910 LSW909 LSW908 LSW907 LSW913 LSW914 S903 • Semiconductor Location Ref. No. Location Ref. No. -
Page 31: Printed Wiring Board -Base Panel Section
CDX-GT81UW/GT860U 5-9. PRINTED WIRING BOARD — BASE PANEL SECTION — : Uses unleaded solder. S902 S901 CN904 (NOSE DET) RESET (Page 24) MAIN BOARD CN801 DISPLAY BOARD CN902 (Page 30) CDX-GT81UW/GT860U... -
Page 32: Schematic Diagram -Display Section
CDX-GT81UW/GT860U • Refer to page 23 for Waveforms. 5-10. SCHEMATIC DIAGRAM — DISPLAY SECTION — • Refer to page 40 for IC Pin Description of IC901. R982 IC903 LSW915(1/2) R981 R920 R921 R922 R923 R924 R925 R926 R927 R928 R929... -
Page 33: Ic Block Diagrams
CDX-GT81UW/GT860U • IC BLOCK DIAGRAMS IC401 BD3442FS-E2 (MAIN Board (1/4)) BUS-L 32 FIL VCC2 100k 31 GND BUS-R INPUT INPUT VOLUME1 TREBLE VOLUME2 100k SELECTOR GAIN /MUTE /BASS TU-L 3 30 SDA /MIDDLE 100k LOGIC 29 SCL TU-R 28 MUTE... - Page 34 CDX-GT81UW/GT860U IC402 NJM2792V (MAIN Board (1/4)) GND (L) LIFT AMP CIN (L) COUT (L) OUT (RL) OUT (FL) FL– RL– SIGNAL AMP SIGNAL AMP FRONT-LEFT REAR-LEFT FRONT-RIGHT REAR-RIGHT SIGNAL AMP SIGNAL AMP FR– RR– OUT (FR) OUT (RR) COUT (R)
- Page 35 CDX-GT81UW/GT860U IC201 TDA8588AJ/N2/R1 (MAIN Board (2/4)) OUT-FL– C BUS OUT-FL+ OUT-RL– PGND3 OUT-RL+ IN-RL IN-FL S-GND PROTECTION/ DIAGNOSTIC IN-FR IN-RR AC_GND OUT-RR+ PGND2 OUT-RR– OUT-FR+ STANDBY/ MUTE OUT-FR– CHIP DETECT/ PGND1 DIAGNOSTIC BATTERY TEMPERATURE DIAG DETECTION PROTECTION ENABLE LOGIC SW2(ANT-REM)
- Page 36 CDX-GT81UW/GT860U IC620 NJM2377M (TE2) (MAIN Board (4/4)) 30µA VREF U.VLO S.C.P ER.AMP 0.52V IC110 BA8271F-E2 (MAIN Board (4/4)) BUS ON BUS ON SWITCH RESET RESET SWITCH BUS ON CLK IN BATTERY BATT BU IN SWITCH VREF DATA IN DATA DATA OUT...
- Page 37 DST SEL0 Destination setting pin 0 FSW IN D/D converter oscillator frequency count control signal input UNI SO SONY bus serial data signal output UNI SI SONY bus serial data signal input UNI CKO SONY bus serial clock signal output BYTE Connect to ground.
- Page 38 CDX-GT81UW/GT860U Pin No. Pin Name Pin Description OPEN REQ CD mechanism open request signal input EJECT OK CD mechanism eject control signal output P MONITOR P-SNSR process monitor signal output CD ON CD servo power supply on/off control signal input...
- Page 39 CDX-GT81UW/GT860U Pin No. Pin Name Pin Description VREF — Reference voltage pin for A/D converter AVCC — Power supply pin (+3.3 V) DISP SI/RX Communication signal input from display IC DISP SO/TX Communication signal output to display IC DISP CKO...
- Page 40 CDX-GT81UW/GT860U IC901 M30876FJBA01GP (DISPLAY CONTROL) (DISPLAY BOARD) Pin No. Pin Name Pin Description SYS CE Main chip enable signal input Not used in this set. (Open) FL DAT3 Vacuum fluorescent displays serial data signal output 3 Not used in this set. (Open)
- Page 41 CDX-GT81UW/GT860U Pin No. Pin Name Pin Description ILL RED Illumination (red) change control signal output Dimmer control signal output AVSS — Ground pin Not used in this set. (Open) VREF — Reference voltage power supply pin (+3.3 V) AVCC —...
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Page 42: Exploded Views
CDX-GT81UW/GT860U SECTION 6 EXPLODED VIEWS NOTE: • The mechanical parts with no reference • -XX and -X mean standardized parts, so The components identified by mark 0 or dotted line with mark number in the exploded views are not supplied. -
Page 43: Main Board Section
CDX-GT81UW/GT860U 6-2. MAIN BOARD SECTION not supplied TUX501 not supplied not supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark A-1225-595-A MAIN BOARD, COMPLETE (GT81UW) TUX501 A-3220-961-B TUNER UNIT (TUX-032) A-1225-597-A MAIN BOARD, COMPLETE (GT860U) 7-685-792-09 SCREW +PTT 2.6X6 (S) 1-872-512-11 FLEXIBLE BOARD 7-685-793-09 SCREW +PTT 2.6X8 (S) -
Page 44: Front Panel Section
CDX-GT81UW/GT860U 6-3. FRONT PANEL SECTION not supplied (DISPLAY board) not supplied FL900 not supplied not supplied CN903 not supplied not supplied not supplied not supplied not supplied not supplied (AUX board) Ref. No. Part No. Description Remark Ref. No. Part No. -
Page 45: Cd Mechanism Section (Mg-101U-188//Q)
CDX-GT81UW/GT860U Ver. 1.1 6-4. CD MECHANISM SECTION (MG-101U-188//Q) NOTE: Refer to SUPPLEMENT-1 for disassembly of OPTICAL PICK-UP. not supplied not supplied not supplied not supplied not supplied not supplied not supplied not supplied not supplied not supplied not supplied not supplied Ref. -
Page 46: Electrical Parts List
CDX-GT81UW/GT860U SECTION 7 BASE PANEL DISPLAY ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in • Items marked “*” are not stocked since The components identified by mark 0 or dotted line with mark the parts list may be different from the they are seldom required for routine service. - Page 47 CDX-GT81UW/GT860U DISPLAY Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < IC > R909 1-216-820-11 METAL CHIP 1/10W R910 1-216-821-11 METAL CHIP 1/10W IC901 6-710-864-01 IC M30876FJBA01GP R911 1-216-820-11 METAL CHIP 1/10W IC903 6-600-163-01 IC RS-770 (IR)
- Page 48 CDX-GT81UW/GT860U DISPLAY MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < SWITCH > C221 1-126-933-11 ELECT 100uF C223 1-126-964-11 ELECT 10uF S903 1-786-653-21 SWITCH, TACTILE (SOURCE) C225 1-165-908-11 CERAMIC CHIP S904 1-786-653-21 SWITCH, TACTILE (MODE)
- Page 49 CDX-GT81UW/GT860U MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C423 1-136-159-00 FILM 0.033uF C708 1-107-826-11 CERAMIC CHIP 0.1uF C424 1-136-159-00 FILM 0.033uF C709 1-107-826-11 CERAMIC CHIP 0.1uF C425 1-124-717-85 ELECT C426 1-124-717-85 ELECT < CONNECTOR >...
- Page 50 CDX-GT81UW/GT860U MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark D640 6-501-193-01 DIODE 1SS355WTE-17 L304 1-216-296-11 SHORT CHIP D703 6-500-334-01 DIODE MC2836-T112-1 L402 1-216-296-11 SHORT CHIP D814 8-719-057-80 DIODE MA8180-M-TX L502 1-216-296-11 SHORT CHIP D815 8-719-057-80 DIODE MA8180-M-TX...
- Page 51 CDX-GT81UW/GT860U MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R111 1-216-841-11 METAL CHIP 1/10W R335 1-216-839-11 METAL CHIP 1/10W R112 1-216-821-11 METAL CHIP 1/10W R336 1-216-845-11 METAL CHIP 100K 1/10W R113 1-216-864-11 SHORT CHIP R337...
- Page 52 CDX-GT81UW/GT860U MAIN SERVO SUB PANEL Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R432 1-216-837-11 METAL CHIP 1/10W R703 1-216-821-11 METAL CHIP 1/10W R433 1-216-839-11 METAL CHIP 1/10W R704 1-216-864-11 SHORT CHIP R434 1-216-837-11 METAL CHIP...
- Page 53 CDX-GT81UW/GT860U Ref. No. Part No. Description Remark ACCESSORIES ************ 1-479-077-23 REMOTE COMMANDER (RM-X152) (GT81UW) 1-479-077-63 REMOTE COMMANDER (RM-X156) (GT860U) 2-548-729-01 LID, BATTERY CASE (for RM-X152/X156) 2-898-878-11 MANUAL, INSTRUCTION (ENGLISH,SPANISH) (GT81UW) 2-898-878-21 MANUAL, INSTRUCTION (ENGLISH,SPANISH, SIMPLIFIED CHINESE) (GT860U) 2-898-923-11 MANUAL, INSTRUCTION, INSTALL (ENGLISH,...
- Page 54 CDX-GT81UW/GT860U MEMO...
- Page 55 CDX-GT81UW/GT860U US Model CDX-GT81UW E Model SERVICE MANUAL CDX-GT860U Ver. 1.1 2007.03 SUPPLEMENT-1 File this supplement with the service manual. Subject: Notes for removal of the OPTICAL PICK-UP added. DISASSEMBLY 1. CHUCKING ARM SUB ASSY 3 chucking arm sub assy 1 spring Note: Have this portion receive the chassis.
- Page 56 CDX-GT81UW/GT860U 2. SLED MOTOR ASSY 2 three serration screws (M 2 × 3) 3 sled mtor assy 1 spring turn table spring stand Note: Never remove these parts since they were adjusted. stand Note: Place the stand with care not to touch the turn table.
- Page 57 CDX-GT81UW/GT860U 3. OPTICAL PICK-UP SECTION 2 optical pick-up section Note: Be careful not to touch the lens and hologram terminal when removing the optical pick-up section. 4. OPTICAL PICK-UP 1 pan tapping screw (M 1.4 × 2.5) 2 leaf spring (sub guide)
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Page 58: Revision History
CDX-GT81UW/GT860U REVISION HISTORY Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper on the revised page allows you to jump to the next revised page. Ver. Date Description of Revision 2007.01 2007.03...