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Sony CDX-C6850R Service Manual
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Sony CDX-C6850R Service Manual

Fm/mw/lw compact disc player
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3 7 63 1515 0
SERVICE MANUAL
TE
L 13942296513
CD player section
System
Compact disc digital audio
system
Signal-to-noise ratio
90 dB
Frequency response
10 – 20,000 Hz
Wow and flutter
Below measurable limit
Tuner section
FM
Tuning range
87.5 – 108.0 MHz
Aerial terminal
External aerial connector
Intermediate frequency 10.7 MHz
Usable sensitivity
10 dBf
Selectivity
75 dB at 400 kHz
Signal-to-noise ratio
65 dB (stereo),
68 dB (mono)
Harmonic distortion at 1 kHz
0.7% (stereo),
0.5% (mono)
Separation
35 dB at 1 kHz
Frequency response
30 – 15,000 Hz
MW/LW
Tuning range
MW: 531 – 1,602 kHz
LW: 153 – 281 kHz
Aerial terminal
External aerial connector
Intermediate frequency 10.71 MHz / 450 kHz
MW: 30 µV
Sensitivity
LW: 50 µV
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MICROFILM
http://www.xiaoyu163.com
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http://www.xiaoyu163.com
CDX-C6850R
2 9
8
Model Name Using Similar Mechanism
CD Drive Mechanism Type
Optical Pick-up Name
SPECIFICATIONS
Q Q
3
6 7
1 3
1 5
Power amplifier section
Outputs
Speaker impedance
Maximum power output 40 W × 4 (at 4 ohms)
General
Outputs
Tone controls
Power requirements
Dimensions
Mounting dimension
Mass
Supplied accessories
Design and specifications are subject to change without
notice.
FM/MW/LW COMPACT DISC PLAYER
co
.
– 1 –
9 4
2 8
AEP Model
UK Model
CDX-C570R/C580R
MG-363T-121
KSS-521A
0 5
8
2 9
9 4
2 8
Speaker outputs
(sure seal connectors)
4 – 8 ohms
Line outputs (2)
Power aerial relay control
lead
Power amplifier control
lead
Telephone ATT control
lead
Bass ±8 dB at 100 Hz
Treble ±8 dB at 10 kHz
12 V DC car battery
(negative ground)
Approx. 178 × 50 × 185 mm
(w/h/d)
Approx. 182 × 53 × 162 mm
(w/h/d)
Approx. 1.2 kg
Rotary commander (RM-X4S) (1)
Parts for installation and
connections (1 set)
Front panel case (1)
m
9 9
9 9

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  • Page 1 CDX-C6850R 3 7 63 1515 0 SERVICE MANUAL AEP Model UK Model Model Name Using Similar Mechanism CDX-C570R/C580R CD Drive Mechanism Type MG-363T-121 Optical Pick-up Name KSS-521A SPECIFICATIONS L 13942296513 CD player section Power amplifier section System Compact disc digital audio...
  • Page 2 COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK ! 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: Table Of Contents

    http://www.xiaoyu163.com 3 7 63 1515 0 TABLE OF CONTENTS 1. GENERAL Location of controls ..............4 Getting Started ................. 4 Setting the clock ..............4 CD Player ................5 Radio ..................5 RDS ..................6 Other Functions ............... 7 CD/MD Unit ................8 Connections ................
  • Page 4 http://www.xiaoyu163.com SECTION 1 GENERAL 3 7 63 1515 0 This section is extracted from instruction manual. L 13942296513 u163 – 4 – http://www.xiaoyu163.com...
  • Page 5 http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 – 5 – http://www.xiaoyu163.com...
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  • Page 11 http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 – 11 – http://www.xiaoyu163.com...

  • Page 12: Cover

    http://www.xiaoyu163.com SECTION 2 DISASSEMBLY 3 7 63 1515 0 Note : Follow the disassembly procedure in the numerical order given. 2-1. COVER 1 claw 4 cover 3 claws 2 claw L 13942296513 2-2. FRONT PANEL ASSY 3 Push the bearing (L). 2 Push the bearing (R).

  • Page 13: Sub Panel Assy

    http://www.xiaoyu163.com 3 7 63 1515 0 2-3. SUB PANEL ASSY 4 claws 6 CNP800 2 PTT 2.6x6 5 claw 1 PTT 2.6x6 7 sub panel assy 3 PTT 2.6x6 L 13942296513 2-4. CD MECHANISM BLOCK 2 PTT 2.6x6 5 PTT 2.6x6 7 bracket (M/D) 1 PTT 2.6x6 4 CD mechanism block...

  • Page 14: Main Board

    http://www.xiaoyu163.com 3 7 63 1515 0 2-5. MAIN BOARD 8 MAIN board 6 ground point screws (PTT 2.6x6) 7 ground point screw 1 CNP401 (PTT 2.6x6) 3 cord (with connector) 2 PTT 2.6x8 5 PTT 2.6x8 4 PTT 2.6x8 L 13942296513 2-6.

  • Page 15: Chassis (T) Sub Assy

    http://www.xiaoyu163.com 3 7 63 1515 0 2-7. CHASSIS (T) SUB ASSY 5 chassis (T) sub assy 1 P 2x3 2 P 2x3 3 P 2x3 4 claw L 13942296513 2-8. LEVER ASSY 5 guide (disc) 6 lever (R) assy 3 tension spring (LR) 7 lever (L) assy 1 PS 2x4 2 DISC IN SW board...

  • Page 16: Servo Board

    http://www.xiaoyu163.com 3 7 63 1515 0 2-9. SERVO BOARD 6 PS 2x4 5 PS 2x4 2 CN2 1 CN3 3 P 2x3 7 SERVO board 4 loading motor assy L 13942296513 2-10. ROLLER ASSY • When installing, take note of the positions arm (roller) and washers.

  • Page 17: Chassis (Op) (O/S) Assy

    http://www.xiaoyu163.com 3 7 63 1515 0 2-11. CHASSIS (OP) (O/S) ASSY 7 chassis (OP) (O/S) assy 8 compression spring (FL) 1 tension spring (angle) 9 compression spring (FL) 2 tension spring (KR1) 5 Fit lever (D) in the direction of the arrow. 6 Turn loading ring in the direction of the arrow.

  • Page 18: Electrical Adjustments

    http://www.xiaoyu163.com SECTION 3 ELECTRICAL ADJUSTMENTS 3 7 63 1515 0 0 dB = 1 µV TUNER SECTION FM Auto Scan/Stop Level Adjustment Setting : SOURCE button : FM Cautions during repair When the tuner unit is defective, replace it by a new one because its internal block is difficult to repair.
  • Page 19 http://www.xiaoyu163.com 3 7 63 1515 0 FM Stereo Separation Adjustment (WIDE) FM Stereo Separation Adjustment (NARROW) Setting : Setting : SOURCE button : FM1 SOURCE button : FM1 FM RF signal FM RF signal generator generator level meter level meter antenna antenna terminal...
  • Page 20 http://www.xiaoyu163.com 3 7 63 1515 0 FM RDS S-Meter Adjustment MW Auto Scan/Stop Level Adjustment Setting : Setting : SOURCE button : FM SOURCE n MODE button : MW 30 Ω 15 pF FM RF signal generator antenna 65 pF terminal 0.01 µ...

  • Page 21: Cd Section

    http://www.xiaoyu163.com 3 7 6 3 1 5 1 5 0 Focus Gain Adjustment (Coarse adjustment) Adjustment Location : tuner unit (TU601) CD SECTION This adjustment is not required unless the following parts are replaced: • Optical pick-up Note: • 1. CD Block basically constructed to operate without adjustment. Therefore, check each item in order given.

  • Page 22: Diagrams

    CDX-C6850R SECTION 4 DIAGRAMS 3 7 6 3 1 5 1 5 0 4-1. BLOCK DIAGRAM — CD SECTION — OPTICAL PICK-UP RF AMP, SERVO CONTROL DIGITAL SIGNAL PROESSOR D/A CONVERTER KSS-521A IC702 RF 0 PCMD V OUTL CD L-CH...

  • Page 23: Block Diagram -Tuner Section

    CDX-C6850R 3 7 6 3 1 5 1 5 0 4-2. BLOCK DIAGRAM — TUNER SECTION — PJ400 –1 ELECTRONIC R-CH (Page 24) BUS AUDIO IN VOLUME IC401 –2 PJ400 –3 SECTION OUT FL FRONT –4 TUNER UNIT CD L-CH...

  • Page 24: Block Diagram -Display Section

    CDX-C6850R 3 7 6 3 1 5 1 5 0 4-3. BLOCK DIAGRAM — DISPLAY SECTION — SYSTEM CONTROL LCD DRIVE IC801 (3/3) IC501 RESET RESET BU5V IC902 LCD501 S900 RESET COLOR VLC5 GREEN 1 SELECT LED501-505, Q504,506 S901...

  • Page 25: Circuit Boards Location

    http://www.xiaoyu163.com 3 7 6 3 1 5 1 5 0 • Waveforms (MODE:PLAY) 4-4. CIRCUIT BOARDS LOCATION THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.) for schematic diagram: DISC IN SW board •...

  • Page 26: Printed Wiring Boards -Cd Mechanism Section

    CDX-C6850R 3 7 6 3 1 5 1 5 0 4-5. PRINTED WIRING BOARDS — CD MECHANISM SECTION — • Semiconductor Location Ref. No. Location 1 3 9 4 2 2 9 6 5 1 3 (Page 37) M902...

  • Page 27: Schematic Diagram -Cd Mechanism Section

    CDX-C6850R 3 7 6 3 1 5 1 5 0 4-6. SCHEMATIC DIAGRAM — CD MECHANISM SECTION — • Refer to page 30 for Waveforms. • Refer to page 51 for IC Block Diagrams. 1 3 9 4 2 2 9 6 5 1 3...

  • Page 28: Printed Wiring Board -Main Section

    CDX-C6850R 3 7 6 3 1 5 1 5 0 4-7. PRINTED WIRING BOARD — MAIN SECTION — • Semiconductor Location Ref. No. Location Ref. No. Location (D402) IC602 D403 IC603 (D404) (IC702) F-11 IC703 (D405) (D406) IC801 (D407)
  • Page 29 CDX-C6850R 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 (Page 31) (Page 46) – 37 – – 38 – http://www.xiaoyu163.com...
  • Page 30 CDX-C6850R 4-8. SCHEMATIC DIAGRAM — MAIN SECTION (1/3) — • Refer to page 53 for IC Block Diagrams. 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w...

  • Page 31: Schematic Diagram -Main Section (2/3)

    CDX-C6850R 3 7 6 3 1 5 1 5 0 4-9. SCHEMATIC DIAGRAM — MAIN SECTION (2/3) — • Refer to page 51 for IC Block Diagrams. (Page 39) 1 3 9 4 2 2 9 6 5 1 3...

  • Page 32: Schematic Diagram -Main Section (3/3)

    CDX-C6850R 3 7 6 3 1 5 1 5 0 4-10. SCHEMATIC DIAGRAM — MAIN SECTION (3/3) — • Refer to page 53 for IC Block Diagrams. 4-11. SCHEMATIC DIAGRAM — RELAY SECTION — (Page 40) (Page 49) 1 3 9 4 2 2 9 6 5 1 3...

  • Page 33: Printed Wiring Board -Relay Section

    CDX-C6850R 3 7 6 3 1 5 1 5 0 4-12. PRINTED WIRING BOARD — RELAY SECTION — (Page 37) 1 3 9 4 2 2 9 6 5 1 3 (Page 48) w w w u 1 6 3 –...

  • Page 34: Printed Wiring Board -Display Section

    CDX-C6850R 3 7 6 3 1 5 1 5 0 4-13. PRINTED WIRING BOARD — DISPLAY SECTION — 1 3 9 4 2 2 9 6 5 1 3 • Semiconductor Location Ref. No. Location Ref. No. Location D501...

  • Page 35: Schematic Diagram -Display Section

    CDX-C6850R 3 7 6 3 1 5 1 5 0 4-14. SCHEMATIC DIAGRAM — DISPLAY SECTION — (Page 44) 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 Note: • Voltage is dc with respect to ground under no-signal (detuned) condition.
  • Page 36 http://www.xiaoyu163.com 3 7 6 3 1 5 1 5 0 IC2 CXA1782BQ • IC Block Diagrams IC1 CXD2507AQ IC602 SAA6588T-118 27 26 25 IIC-BUS PSWN SLAVE TRANSCEIVER SERVO AUTO SEQUENCER DATA SIGNAL PAUSE INTERFACE QUALITY DETECTOR REGISTER XRST AFIN DETECTOR SENS SUB CODE MUTE...
  • Page 37 http://www.xiaoyu163.com 3 7 63 1515 0 IC401 TDA7462 SE3L SE3R MUTE PAUSE PAUSE DETECT FRONT INPUT TREBLE/ OUT FL LOUDNESS VOICE BANDPASS VOLUME FADER GAIN & SOFT BASS CONTROL CONTROL SE1L AUTO MUTE CONTROL CIRCUIT CIRCUIT SE1R ZERO CIRCUIT FRONT MD–...
  • Page 38 http://www.xiaoyu163.com 3 7 63 1515 0 IC601 TDA7427AD1TR LPOUT VDD1 VDD2 LP FM SWITCH CHARGE PHASE 11 BIT PROG LP1/LP2 GND AM PUMP COMP COUNTER LP HC LP AM SWITCH SWITCH SWM/DIR SWM/DIR V REF AM IN SWITCH AM/FM INLOCK 6 BIT PROG PRE COUNTER DETECTOR...

  • Page 39: Ic Pin Description

    http://www.xiaoyu163.com 3 7 63 1515 0 4-15. IC PIN DESCRIPTION • IC801 MB90574APMT-G-198-BND (SYSTEM CONTROL) Pin No. Pin Name Pin Description LD ON Laser ON/OFF control output Focus OK signal detection input XLAT25 CD signal processing latch output DATA25 CD signal serial data output XRST Reset output to CD signal processor IC.
  • Page 40 http://www.xiaoyu163.com 3 7 63 1515 0 Pin No. Pin Name Pin Description AMP ON Power amplifier power control output TXT ON Reset output to CD-TEXT decoder IC. VOL ATT Electric volume mute control output — Not used. (Open) System attenuate control output RC IN1 Rotary commander shift key input 1 TU ATT...
  • Page 41 http://www.xiaoyu163.com 3 7 63 1515 0 Pin No. Pin Name Pin Description ANT REM ANT REMOTE power control output — Not used. (Open) CTL2 — Not used in this set. CD LD Loading motor control output (Loading direction) CD EJ Loading motor control output (Eject direction) L SW Sled limit switch detection input...

  • Page 42: Exploded Views

    http://www.xiaoyu163.com SECTION 5 EXPLODED VIEWS 3 7 63 1515 0 NOTE: • The mechanical parts with no reference • Color Indication of Appearance Parts The components identified by number in the exploded views are not supplied. Example : mark ! or dotted line with mark. •...

  • Page 43: Front Panel Section

    http://www.xiaoyu163.com 3 7 63 1515 0 5-2. FRONT PANEL SECTION not supplied (DISPLAY board) LCD501 L 13942296513 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-030-944-01 LEVER (SEEK/AMS) 3-030-901-01 RING 3-030-950-01 BUTTON (OPEN) * 61 3-030-888-01 PLATE (LCD), GROUND 3-032-321-01 SPRING (OPEN) * 62 3-032-199-01 SHEET (ESD)

  • Page 44: Cd Mechanism Section (1)

    http://www.xiaoyu163.com 3 7 63 1515 0 5-3. CD MECHANISM SECTION (1) (MG-363T-121) L 13942296513 M903 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark * 101 1-659-836-11 DISC IN SW BOARD 3-931-902-04 ARM (ROLLER) * 102 A-3291-816-B CHASSIS (T) SUB ASSY 3-936-756-01 ROLLER (D) 3-931-909-01 SPRING (LR), TENSION 3-321-393-01 WASHER, STOPPER...

  • Page 45: Cd Mechanism Section (2)

    http://www.xiaoyu163.com 3 7 63 1515 0 5-4. CD MECHANISM SECTION (2) (MG-363T-121) L 13942296513 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-931-893-01 ARM, CHUCKING A-3277-802-C CHASSIS (M) ASSY 3-931-897-01 DAMPER (T) 3-939-883-01 SPRING (TR), TENSION 3-931-879-02 LEVER (D) 3-931-881-01 LEVER (LOCK) * 154...

  • Page 46: Cd Mechanism Section (3)

    http://www.xiaoyu163.com 3 7 63 1515 0 5-5. CD MECHANISM SECTION (3) (MG-363T-121) M901 M902 L 13942296513 The components identified by mark ! or dotted line with mark. ! are critical for safety. Replace only with part number specified. Ref. No. Part No.

  • Page 47: Electrical Parts List

    http://www.xiaoyu163.com SECTION 6 DISC IN SW DISPLAY ELECTRICAL PARTS LIST 3 7 63 1515 0 NOTE: • Due to standardization, replacements in • Items marked “*” are not stocked since The components identified by the parts list may be different from the they are seldom required for routine service.
  • Page 48 http://www.xiaoyu163.com DISPLAY LIMIT SW LOAD SW MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R531 1-216-043-00 METAL CHIP 1/10W 1-659-835-12 LIMIT SW BOARD R532 1-216-045-00 METAL CHIP 1/10W *************** R533 1-216-045-00 METAL CHIP 1/10W R534...
  • Page 49 http://www.xiaoyu163.com MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C404 1-163-809-11 CERAMIC CHIP 0.047uF C647 1-163-021-11 CERAMIC CHIP 0.01uF C406 1-124-234-00 ELECT 22uF C648 1-163-251-11 CERAMIC CHIP 100PF C407 1-164-346-11 CERAMIC CHIP C649 1-163-021-11 CERAMIC CHIP 0.01uF...
  • Page 50 http://www.xiaoyu163.com MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C950 1-163-021-11 CERAMIC CHIP 0.01uF D902 8-719-200-82 DIODE 11ES2 D903 8-719-049-38 DIODE 1N5404TU < JACK > D904 8-719-200-82 DIODE 11ES2 D909 8-719-056-83 DIODE UDZ-TE-17-6.8B CNJ600 1-764-808-21 JACK (ANT) D910...
  • Page 51 http://www.xiaoyu163.com MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < JACK > < RESISTOR > PJ400 1-774-700-21 JACK, PIN 6P (BUS AUDIO IN,LINE OUT) R101 1-216-057-00 METAL CHIP 2.2K 1/10W R102 1-216-073-00 METAL CHIP 1/10W...
  • Page 52 http://www.xiaoyu163.com MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R612 1-216-073-00 METAL CHIP 1/10W R810 1-216-025-00 RES,CHIP 1/10W R613 1-216-073-00 METAL CHIP 1/10W R812 1-216-097-00 RES,CHIP 100K 1/10W R614 1-216-295-00 SHORT R813 1-216-049-11 RES,CHIP 1/10W...
  • Page 53 http://www.xiaoyu163.com MAIN RELAY SERVO 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R918 1-216-073-00 METAL CHIP 1/10W A-3309-694-A SERVO BOARD, COMPLETE R919 1-216-073-00 METAL CHIP 1/10W *********************** R920 1-216-097-00 RES,CHIP 100K 1/10W R925 1-216-097-00 RES,CHIP...
  • Page 54 http://www.xiaoyu163.com SERVO 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < JUMPER RESISTOR > JR54 1-216-296-00 SHORT JR55 1-216-296-00 SHORT JR01 1-216-296-00 SHORT JR56 1-216-296-00 SHORT JR03 1-216-296-00 SHORT JR57 1-216-296-00 SHORT JR04 1-216-296-00 SHORT JR58...
  • Page 55 http://www.xiaoyu163.com SERVO 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-216-073-00 METAL CHIP 1/10W MISCELLANEOUS 1-216-295-00 SHORT *************** 1-216-101-00 METAL CHIP 150K 1/10W 1-216-097-00 RES,CHIP 100K 1/10W 1-790-375-11 CORD (WITH CONNECTOR) (SUB OUT) 1-216-097-00 RES,CHIP 100K 1/10W...
  • Page 56 CDX-C6850R 3 7 63 1515 0 Ref. No. Part No. Description Remark PARTS FOR INSTALLATION AND CONNECTIONS *************************************** 3-011-653-11 FRAME 3-386-828-01 SCREW, FITTING * 253 3-358-697-01 BUSHING X-3376-976-1 COLLAR ASSY 3-934-325-01 SCREW, +K (5X8) TAPPING 1-465-459-21 ADAPTOR, ANTENNA 3-027-138-01 SPRING, FITTING...

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