Sony MZ-R37 specifications Servicing Note

Page 3

 

 

TABLE OF CONTENTS

 

1.

GENERAL

 

4.

TEST MODE

 

 

Looking at the controls

4

4-1. General

12

 

 

 

4-2. Test Mode Setting

12

2.

SELF-DIAGNOSTIC

 

4-3. Test Mode Structure

12

2-1. General

5

4-4. Manual Mode

12

2-2. Test Mode Setting

5

4-5. Overall Adjustment Mode (Assy Mode)

15

2-3. Operation in Test Mode Setting

5

4-6. Hybrid Mode, Key Check Mode

16

2-4. Releasing the Test Mode

5

5.

ELECTRICAL ADJUSTMENTS

17

2-5. Self-Diagnostic Mode

5

2-6. Clearing the Error Indication Code

 

6.

DIAGRAMS

 

 

and Total Recording Time

6

 

 

 

 

6-1. IC Pin Descriptions

20

3.

DISASSEMBLY

 

6-2. Block Diagram – Servo Section

25

3-1. Panel, Bottom

7

6-3. Block Diagram – Audio Section

27

3-2. Panel (SV) Assy, Front

7

6-4. Block Diagram – System Control Section

29

3-3. LCD Module

8

6-5. Printed Wiring Board

31

3-4. Connector

8

6-6. Schematic Diagram – Main Section (1/3)

35

3-5. Main Board

9

6-7. Schematic Diagram – Main Section (2/3)

38

3-6. Panel (SV) Assy, Upper

9

6-8. Schematic Diagram – Main Section (3/3)

41

3-7. Cabinet (SV) Assy

10

7.

EXPLODED VIEWS

 

3-8. OP Block Assy

10

 

3-9. Holder Assy

11

7-1. Panel Section

49

 

 

 

7-2. Cabinet (SV) Assy Section

50

 

 

 

7-3. Mechanism Deck Section

51

 

 

 

8.

ELECTRICAL PARTS LIST

52

SERVICING NOTE

1)When repairing this device with the power on, if you remove the main board or open the upper panel assy, this device stops working.

In this case, you can work without the device stopping by fastening the hook of the OPEN1 switch (S801) with tape.

panel assy, upper

MAIN board

tape

S801

2)This set is designed to perform automatic adjustment for each adjustment and write its value to EEPROM. Therefore, when EEPROM (IC803) has been replaced in service, be sure to per- form automatic adjustment and write resultant values to the new

EEPROM.

Refer to page 12 for details.

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Contents MZ-R37 SpecificationsBattery operation time1 Flexible Circuit Board RepairingServicing Note General Releasing the Test Mode Section SELF-DIAGNOSTICTest Mode Setting Operation in Test Mode SettingDescription of History Codes History code number Clearing the Error Indication Code and Total Recording TimeDescription of Error Indication Codes Problem Indication code Meaning of code DescriptionSection Disassembly PANEL, BottomPanel SV ASSY, Front LCD Module ConnectorPanel SV ASSY, Upper Main BoardOP Block Assy Cabinet SV AssyHolder Assy Test Mode Test Mode StructureManual Mode Audio Mode How to Transfer in the Audio Mode System Gain ModeHow to Adjust in the Audio Mode How to Check in the Audio ModeHow to Check in the Mechanism Mode How to Check in the Power Mode Overall Adjustment Mode Assy ModePower Mode Mode No Test Description Indication value Remark How to Adjust in Assy ModeHybrid MODE, KEY Check Mode MO Automatic AdjustmentMode No Adjustment Description MO Traverse Adjustment Section Electrical AdjustmentsPrecautions for Adjustment Laser Power CheckLOW Reflection CD Traverse Adjustment RF waveform CD RF Level CheckIC PIN Descriptions Section DiagramsXlrf AvssFili FiloSCK2 ClkcsSDI2 SDO2KEY1 LCD ResetKEY3 KEY2MZ-R37 Block Diagram Servo SectionSection Block Diagram System Control SectionControl B Keyrmc AudioSemiconductor Location Printed Wiring BoardWaveforms IC801 $¼ MZ-R37 IC802 8110ANP-DSB-T2 IC Block Diagrams IC301 AK4517-VQ-LIC303 AN7535SA-E1 IC304IC803 AK6420AM-E IC761 BA6966FV-E2IC901 MPC18A35FTA Panel Section Section Exploded ViewsCabinet SV Assy Section 59 4-216-592-01 Terminal A, Battery DetectionMechanism Deck Section MT-MZR37-161 MOTOR, DC LoadingMotor Block ASSY, Sled Sled Electrical Parts List SectionMain Tantalum Elect ChipDiode CXD2652AR Metal ChipRN5RZ25AA-TR CXA2523ARDescription Remark R202 218-875-11 Accessories & Packing Materials SwitchSWITCH, Slide Synchro REC SWITCH, KEY Board DisplayAccessories & Packing Materials ADAPTOR, AC AC-E455AADAPTOR, Conversion 2P Table of Contents Printed Wiring Board Schematic DiagramCorrections Side a Printed Wiring Board Except US ModelMain Board Printed Wiring Board US Model Location SemiconductorMZ-R37 IC801 r Schematic Diagram Main /3MZ-R37 Electrical Parts List CAP-CHIP Transistor XP4313-TX.SO Diode MA8140-M-TXJFJ7001 Line in Optical Jack PHONES/REMOTERES-CHIP FILTER, Chip EMI Common Mode Network ResistorFilter Head ASSY, OP Electrical Parts LIST/MISCELLANEOUS Incorrect CorrectOP Service Assy Incorrect Correct