Table of Contents
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WM-GX510/GX512
SERVICE MANUAL
Ver 1.1 2002. 01
530-1.710 kHz (For "USA" indication)
Sony Corporation
9-960-475-12
2002A1600-1
Personal Audio Company
© 2002.1
Published by Sony Engineering Corporation
Photo : WM-GX512
Model Name Using Similar Mechanism
Tape Transport Mechanism Type
SPECIFICATIONS
RADIO CASSETTE CODER
— 1 —
AEP Model
WM-GX510
E Model
WM-GX510/GX512
Tourist Model
WM-GX512
WM-GX614
MF-WMGX614-112
– Continued on next page –
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Table of Contents
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Summarization of Contents
SERVICE MANUAL
SPECIFICATIONS
Provides technical details about the radio and tape sections.
SECTION 1 GENERAL
FUNCTION OF CONTROL
Details the function of various buttons and controls on the device.
Receiving Stations Outside Your Country
Instructions for tuning radio stations in different geographical regions.
SECTION 2 SERVICE NOTE
[Service Mode]
Procedure to enter and use the service mode for mechanism operation.
[Rotation system]
Rotation system during PLAY.
Illustrates the mechanical components involved during tape playback.
Rotation system during REW.
Illustrates the mechanical components involved during tape rewinding.
Rotation system during FF.
Illustrates the mechanical components involved during tape fast-forwarding.
SECTION 3 DISASSEMBLY
3-1. BRACKET ASSEMBLY AND CASSETTE HOLDER ASSEMBLY
Step-by-step guide for disassembling the bracket and cassette holder.
3-2. TUNER BOARD
Instructions for removing and handling the tuner board.
3-3. MAIN BOARD AND SUB BOARD
Detailed steps for disassembling the main and sub boards.
SECTION 4 MECHANICAL ADJUSTMENT
[Torque Measurement]
Details torque specifications for various tape transport modes.
[Tape Speed Adjustment]
Procedure for adjusting tape speed using a test tape and frequency counter.
TUNER SECTION
[AM VT VOLTAGE ADJSTMENT]
Procedure for adjusting AM voltage for optimal reception.
[FM VCO Adjustment]
Steps to adjust the FM Voltage Controlled Oscillator for accurate tuning.
SECTION 6 DIAGRAMS
6-1. PRINTED WIRING BOARD
Shows the layout of components on the printed wiring board.
6-2. SCHEMATIC DIAGRAM - TUNER SECTION -
Detailed schematic diagram for the tuner section of the device.
6-3. SCHEMATIC DIAGRAM - MAIN SECTION
Detailed schematic diagram for the main section of the device.
6-4. PRINTED WIRING BOARD MAIN SECTION -
Illustrates the component placement on the main section's printed wiring board.
6-1. IC PIN FUNCTIONS
IC501 BA3641FV REC AMP
Details the pin functions for the BA3641FV REC AMP IC.
IC701 MSM63120B SYSTEM CONTROL
Lists the pin functions for the MSM63120B SYSTEM CONTROL IC.
SECTION 7 EXPLODED VIEWS
7-1. CASE SECTION
Exploded view and parts list for the case section of the device.
7-2. MAIN BOARD SECTION
Exploded view and parts list for the main board assembly.
7-3. MECHANISM SECTION (MF-WMGX614-112)
Exploded view and parts list for the tape mechanism.
SECTION 8 ELECTRICAL PARTS LIST
ATS FLEXIBLE MAIN
List of electrical components for the ATS flexible and main boards.
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