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SERVICE MANUAL
The mechanism deck was changed from MG-250C-137 to MG-250D-137.
At the same time, MAIN and JACK boards were been changed.
This supplement contains only a new type mechanism deck and boards.
SUPPLEMENT-1
File this supplement with the service manual.
Subject: Mechanism Deck Modification (MG-250D-137)

TABLE OF CONTENTS

1.
2.
3.
and Schematic Diagrams ................................................ 5
3-2. Printed Wiring Boards - RF Section - .......................... 6
3-3. Schematic Diagram - RF Section - ............................... 7
-MAIN Board (Component Side) - ............................... 10
-MAIN Board (Conductor Side) - ................................. 11
3-8. Printed Wiring Boards - JACK Boards - ...................... 12
4.
5.
CDX-525RF
(ECN-CSA00838)
.................... 2
......................................................... 3
................................................ 12
............................... 17
US Model
Canadian Model
AEP Model
UK Model
E Model

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Summary of Contents for Sony CDX-525RF

  • Page 1: Table Of Contents

    CDX-525RF US Model Canadian Model SERVICE MANUAL AEP Model UK Model E Model SUPPLEMENT-1 File this supplement with the service manual. Subject: Mechanism Deck Modification (MG-250D-137) (ECN-CSA00838) The mechanism deck was changed from MG-250C-137 to MG-250D-137. At the same time, MAIN and JACK boards were been changed.
  • Page 2: New/Former Discrimination

    NEW/FORMER DISCRIMINATION 7Y187A C: MG-250C-137 (Former type) D: MG-250D-137 (New type)
  • Page 3: Disassembly

    DISASSEMBLY Note: Follow the disassembly procedure in the numerical order given. MECHANISM DECK (MG-250D-137) 4 mechanism deck (MG-250D-137) 2 tension spring (FL) 2 tension spring (FL) 1 two dampers (250) firament tape 3 jack flexible board (CNJ901) 1 two dampers (250) MAIN BOARD 1 main flexible board (CNJ12)
  • Page 4 RF BOARD 1 OP flexible board 3 two screws (CNJ11) (PTT2 × 4) 3 two screws (PS2 × 4) 7 RF board 5 connector (CNP53) 2 Break the soldering 6 Break the soldering of lead. of motor (M102) lead. CHUCKING MOTOR ASS’Y (M103) 2 two screws (PTT2 ×...
  • Page 5: Diagrams

    DIAGRAMS 3-1. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS Note on Printed Wiring Board: Note on Schematic Diagram: • X : parts extracted from the component side. • All capacitors are in µF unless otherwise noted. pF: µµF • Y : parts extracted from the conductor side. 50 WV or less are not indicated except for electrolytics •...
  • Page 6: Printed Wiring Boards - Rf Section

    CDX-525RF 3-2. PRINTED WIRING BOARDS – RF Section – RF BOARD (COMPONENT SIDE) RF BOARD (CONDUCTOR SIDE) • Semiconductor Location Ref. No. Location IC11 IC51 CNJ12 IC52 IC51 RV14 M101 (SPINDLE) CNP53 (VC) MAIN (FE0) BOARD (RF) (Page 10) TP (GND)
  • Page 7: Schematic Diagram - Rf Section

    CDX-525RF 3-3. SCHEMATIC DIAGRAM – RF Section – (Page 8) The components identified by mark 0 or dotted Les composants identifiés par une marque 0 sont line with mark 0 are critical for safety. critiques pour la sécurité. Ne les remplacer que Replace only with part number specified.
  • Page 8: Schematic Diagram - Main Section (1/2)

    CDX-525RF 3-4. SCHEMATIC DIAGRAM – MAIN Section (1/2) – (Page 7)
  • Page 9: Schematic Diagram - Main Section (2/2)

    CDX-525RF 3-5. SCHEMATIC DIAGRAM – MAIN Section (2/2) –...
  • Page 10: Printed Wiring Boards -Main Board (Component Side)

    CDX-525RF 3-6. PRINTED WIRING BOARDS – MAIN Board (Component Side) – • Semiconductor MAIN BOARD (COMPONENT SIDE) Location Ref. No. Location R213 D201 C105 R212 D202 C107 R103 C104 D203 R102 R101 C103 R104 C806 D204 R106 C102 C124 R105...
  • Page 11: Printed Wiring Board -Main Board (Conductor Side)

    CDX-525RF 3-7. PRINTED WIRING BOARD – MAIN Board (Conductor Side) – • Semiconductor MAIN BOARD (CONDUCTOR SIDE) Location Ref. No. Location IC201 G-10 IC203 E-10 Q201 D-10 C409 (CHASSIS) C401 C404 SW302 C201 C405 MAGAZINE IN/OUT DETECT C411 C202 C407...
  • Page 12: Printed Wiring Boards - Jack Boards

    CDX-525RF 3-8. PRINTED WIRING BOARDS – JACK Board – EXPLODED VIEWS NOTE: • Items marked “*” are not stocked since they • -XX and -X mean standardized parts, so they The components identified by mark 0 or dotted line with mark may have some difference from the original are seldom required for routine service.
  • Page 13 (2) MECHANISM DECK SECTION-1 (MG-250D-137) Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark X-3375-497-1 CHASSIS (U) SUB ASSY 3-011-997-01 SPRING (STOPPER. LOWER) 3-024-161-01 SPRING (SUT)
  • Page 14 (3) MECHANISM DECK SECTION-2 (MG-250D-137) M104 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-024-170-01 SPRING (SB), TENSION X-3378-136-1 CHASSIS (D.D) SUB ASSY * 102 3-024-172-01 BRACKET (EVM) M104 A-3301-123-A ELJ MOTOR ASSY (ELEVATOR)
  • Page 15 (4) MECHANISM DECK SECTION-3 (MG-250D-137) M103 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark * 151 3-024-150-01 RETAINER (CHM) 3-010-252-01 ROLLER (CRE) * 152 X-3378-080-1 BRACKET (CHM. D) ASSY 3-010-268-01 SPRING (DH), TENSION 3-010-270-01 COVER (CHM) * 161 A-3290-194-I MAIN ASSY, CHASSIS (EVY) 3-321-813-01 WASHER, COTTER POLYETHYLENE...
  • Page 16 (5) MECHANISM DECK SECTION-4 (MG-250D-137) not supplied M101 not supplied M102 The components identified by Les composants identifiés par une mark 0 or dotted line with marque 0 sont critiques pour la mark 0 are critical for safety. sécurité. Replace only with part num- Ne les remplacer que par une pièce ber specified.
  • Page 17: Electrical Parts List

    JACK MAIN ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in the • Items marked “*” are not stocked since they The components identified by mark 0 or dotted line with mark are seldom required for routine service. parts list may be different from the parts speci- 0 are critical for safety.
  • Page 18 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark D204 8-719-422-64 DIODE MA8062-M-TX R202 1-216-049-11 RES-CHIP 1/10W D205 8-719-038-48 DIODE 1SS319 (TE85R) R203 1-216-089-00 RES-CHIP 1/10W R204 1-216-097-00 RES-CHIP 100K 1/10W D206 8-719-988-61 DIODE 1SS355TE-17 D207 8-719-422-62 DIODE MA8062-L-TX R205 1-216-077-00 RES-CHIP...
  • Page 19 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-107-826-11 CERAMIC CHIP 0.1uF 1-216-837-11 METAL CHIP 1/16W 1-164-227-11 CERAMIC CHIP 0.022uF 1-216-841-11 METAL CHIP 1/16W 1-111-253-11 TANTALUM CHIP 100uF 6.3V 1-216-857-11 METAL CHIP 1/16W 1-163-038-00 CERAMIC CHIP 0.1uF 1-216-851-11 METAL CHIP 330K...
  • Page 20 CDX-525RF Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-664-104-11 SW BOARD ********* < SWITCH > 1-529-565-11 SWITCH, PUSH (1 KEY) (LIMIT) ************************************************************** MISCELLANEOUS ************** 1-664-626-11 OP FLEXIBLE BOARD 0 211 8-820-010-06 OPTICAL PICK-UP KSS-521A/K1RP M101...

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