Sony MZ-RH10 Service Manual

SERVICE MANUAL
PORTABLE MD RECORDER
MZ-RH10
Ver. 1.0 2005.03
9-879-560-01
2005C05-1
© 2005.03
Sony Corporation
Personal Audio Group
Published by Sony Engineering Corporation
Model Name Using Similar Mechanism NEW
MD Mechanism Type MT-MZNH900-181J
Optical Pick-up Name ABX-UJ
US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Model
Tourist Model
SPECIFICATIONS
– Continued on next page –
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•™ and ® marks are omitted in this manual.
• CD and music-related data from Gracenote, Inc., copyright © 2000-
2004 Gracenote. Gracenote CDDB
®
Client Software, copyright 2000-
2004 Gracenote. This product and service may practice one or more of
the following U.S. Patents: #5,987,525; #6,061,680; #6,154,773,
#6,161,132, #6,230,192, #6,230,207, #6,240,459, #6,330,593, and other
patents issued or pending. Services supplied and/or device manufactured
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6,304,523.
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Program © 2001, 2002, 2003, 2004, 2005 Sony Corporation
Documentation © 2005 Sony Corporation
Audio playing system
MiniDisc digital audio system
Laser diode properties
Material: GaAlAs
Wavelength: λ = 790 nm
Emission duration: continuous
Laser output: less than 44.6 µW
(This output is the value measured at a distance
of 200 mm from the lens surface on the optical
pick-up block with 7 mm aperture.)
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Sony MZ-RH10 Specifications

General

Brand	Sony
Model	MZ-RH10
Category	MiniDisc Player
Language	English

Summary

SPECIFICATIONS

1. SERVICING NOTES

2. GENERAL

3. DISASSEMBLY

3-1. Disassembly Flow

Step-by-step guide for component disassembly.

3-2. Case (Lower) Block

Procedure for removing the lower case assembly.

3-3. Main Board

Procedure for removing the main board assembly.

3-4. Panel (Upper) Section

Procedure for removing the upper panel section.

3-5. Mechanism Deck (MT-MZNH900-181J)

Procedure for removing the mechanism deck.

3-6. Battery Case Block

Procedure for removing the battery case block.

3-7. Gear (BSA), Gear (SB)

Procedure for removing gears.

3-8. OP Service Assy

Procedure for removing the optical pick-up service assembly.

3-9. DC Motor SSM18D/C-NP (Spindle) (M701), DC Motor (Sled) (M702), DC Motor Unit (Over Write Head Up/Down) (M703)

Procedure for removing DC motors and unit.

3-10. Holder Assy

Procedure for removing the holder assembly.

3-11. Position of Ferrite Core

Instructions on ferrite core placement on cables.

4. TEST MODE

OUTLINE

General description of test mode operation and LCD displays.

1. OPERATION IN SETTING THE TEST MODE

Steps to enter and operate the test mode.

2. CONFIGURATION OF THE TEST MODE

Flow and configuration of different test modes.

5. ELECTRICAL ADJUSTMENTS

3-1. Initialize The Adjustment Value

Procedure to reset adjustment values to default.

3-2. Power Supply Voltage Adjustment

Procedure for adjusting power supply voltages.

3-3. Charge Function Check

Procedure to check the battery charging function.

3-4. Laser Power Check

Procedure to measure and adjust laser power.

3-5. Setting The Adjustment Values

Procedure for setting various adjustment values.

3-6. Servo Overall Adjustment

Procedure for overall servo adjustment.

3-7. Resume Clear

Procedure to clear adjustment data.

3-8. Releasing The Test Mode

Procedure to exit the test mode safely.

6. DIAGRAMS

6-1. Block Diagram - MD Servo Section

Block diagram of the MD servo system.

6-2. Block Diagram - AUDIO Section

Block diagram of the audio processing section.

6-3. Block Diagram - POWER SUPPLY Section

Block diagram of the power supply system.

6-4. Schematic Diagram – MAIN Board (1/9)

Schematic of the main board (part 1).

6-5. Schematic Diagram – MAIN Board (2/9)

Schematic of the main board (part 2).

6-6. Schematic Diagram – MAIN Board (3/9)

Schematic of the main board (part 3).

6-7. Schematic Diagram – MAIN Board (4/9)

Schematic of the main board (part 4).

6-8. Schematic Diagram - MAIN Board (5/9)

Schematic of the main board (part 5).

6-9. Schematic Diagram - MAIN Board (6/9)

Schematic of the main board (part 6).

6-10. Schematic Diagram - MAIN Board (7/9)

Schematic of the main board (part 7).

6-11. Schematic Diagram - MAIN Board (8/9)

Schematic of the main board (part 8).

6-12. Schematic Diagram - MAIN Board (9/9)

Schematic of the main board (part 9).

6-13. Printed Wiring Board - MAIN Board (Component Side)

Component layout on the main board (component side).

6-14. Printed Wiring Board - MAIN Board (Conductor Side)

Component layout on the main board (conductor side).

7. EXPLODED VIEWS

7-1. Case (Lower) Section

Exploded view of the lower case section.

7-2. Panel (Upper) Section

Exploded view of the upper panel section.

7-3. Chassis Section

Exploded view of the chassis section.

7-4. Mechanism Deck Section (MT-MZNH900-181J)

Exploded view of the mechanism deck.

8. ELECTRICAL PARTS LIST