TABLE OF CONTENTS
SectionTitlePageSectionTitlePage
Service Note ............................................................................FL-104 (FUNCTION SWITCH), SW-321 (FUNCTION4
SWITCH) and CK-88 (CONNECTION)
1.GENERALSchematic Diagram ....................................................... 4-51
FL-104 (IF CON) Schematic Diagram .......................... 4-53
This Player Can Play the Following Discs ....................FR-154 (IR/PO1-1WER SWITCH)
Getting Started ..............................................................Printed Wiring Boards and Schematic Diag1-1ram ........... 4-55
Playing Discs .................................................................HP-114 (HEADPHONE) Printed 1-3Wiring Boards
Using Various Functions with the Control Menu...........and Schematic Diag1-6ram ................................................ 4-57
Settings and Adjustments .............................................LM-59 (LOADING MO1-12TOR), CK-81 (DRIVE)
Additional Information ...................................................Printed Wiring Boards1-16................................................... 4-59
LM-59 (LOADING MOTOR), CK-81 (DRIVE)
2.DISASSEMBLYSchematic Diagram ....................................................... 4-61
HS-034SF (SWITCHING REGULATOR)
2-1. Case Removal ...............................................................Printed Wiring Board .....................................................2-14-63
HS-034SF (SWITCHING REGULATOR)
2-2. Front Panel Section Removal........................................2-1
2-3. MB-85 Board Removal ..................................................Schematic Diagram 2-1....................................................... 4-65
2-4. AU-215 Board Removal ................................................HS-034SU (SWITCHING REGULA2-1TOR)
Printed Wiring Board ..................................................... 4-67
2-5. Rear Panel Section Removal ........................................2-2
2-6. Table AssOy Removal .....................................................HS-034SU (SWITCHING REGULA2-2TOR)
2-7. Rotary Motor AssOy (M951) Removal ............................Schematic Diag2-2ram ....................................................... 4-69
2-8. Chassis AssOy ................................................................ 2-2
2-9. Loading Motor AssOy (M991) Removal..........................5.IC PIN FUNCTION DESCRIPTION2-3
2-10. BU Holder AssOy Removal ............................................. 2-3
2-11. TK-53 Board Removal ...................................................5-1. System Control Pin Function2-3
2-12. Optical Pick-up Removal ...............................................(MB-85 Board IC202)2-3.................................................... 5-1
2-13. Internal View .................................................................. 2-4
2-14. Circuit Boards Location .................................................6.TEST MODE2-5
3.BLOCK DIAGRAMS6-1. General Description ...................................................... 6-1
6-2. Starting Test Mode ........................................................ 6-1
3-1. Overall Block Diagram..................................................6-3. Syscon Diagnosis3-1.......................................................... 6-1
3-2. RF/Servo Block Diagram..............................................6-4. Drive Auto Adjustment3-3.................................................. 6-5
3-3. Signal Process/Video Block Diag...........................ram6-5. Dr3-iv5e Manual Operation ................................................ 6-7
3-4. System Control Block Diagram .....................................6-6. Mecha Aging .................................................................3-76-9
3-5. Audio (1) Block Diagram ...............................................6-7. Emergency History ........................................................3-96-9
3-6. Audio (2) Block Diagram ...............................................6-8. Version Information3-11....................................................... 6-10
3-7. Interface Control Block Diagram ...................................6-9. Video Level Adjustment3-13................................................ 6-10
3-8. Power Block Diagram .................................................... 3-15
7.ELECTRICAL ADJUSTMENTS
4.PRINTED WIRING BOARDS AND SCHEMATIC
DIAGRAMS7-1. Power Supply Adjustment ............................................. 7-1
1. Power Supply Check
4-1. Frame Schematic Diagram...........................................(HS-034SF/034SU BO4-3ARD) ......................................... 7-1
4-2. Printed Wiring Boards and Schematic Diagrams .........7-2. Adjustment of 4-7Video System ......................................... 7-2
1. Video Level Adjustment (MB-85 BOARD) .................... 7-2
TK-53 (RF/SERVO) Printed Wiring Board ....................4-7
TK-53 (RF/SERVO) Schematic Diagram ......................2. S-ter4-11minal Output Check (MB-85 BOARD) .................. 7-2
SE-91 (SENSOR), LE-24 (LED)3. Checking Component Video Output B-Y
(MB-85 BOARD) ............................................................ 7-2
Printed Wiring Boards and Schematic Diagram ...........4-13
MB-85 (SIGNAL PROCESS)4. Checking Component Video Output R-Y
Printed Wiring Board .....................................................(MB-85 BOARD) ............................................................4-157-2
5.Checking Component Video Output Y
MB-85 (AV DECODER) Schematic Diagram ................4-19
MB-85 (SDRAM) Schematic Diagram ..........................(MB-85 BO4-21ARD) ............................................................ 7-3
MB-85 (SERVO DSP) Schematic Diagram...................6. Chec4-23king S Video Output S-C (MB-85 BOARD) .......... 7-3
7-3. Adjustment Related Parts Arrangement....................... 7-4
MB-85 (DRIVE) Schematic Diagram ............................4-25
MB-85 (ARP) Schematic Diagram ................................ 4-27
MB-85 (SYSTEM CONTROL)8.REPAIR PARTS LIST
Schematic Diagram ....................................................... 4-29
MB-85 (HGA) Schematic Diagram ................................8-1. Exploded Vie4-31ws ............................................................. 8-1
MB-85 (CLOCK GENERATOR/AUDIO DSP/8-1-1. Main Assembly ......................................................... 8-1
V EQ/NR) Schematic Diagram......................................8-1-2. Front Panel Assemb4-33ly .............................................. 8-2
MB-85 (DAC) Schematic Diagram ................................8-1-3. Table Assemb4-35ly ........................................................ 8-3
MB-85 (BIAS) Schematic Diagram ...............................8-1-4. Chassis Assemb4-37ly .................................................... 8-4
AU-215 (AUDIO/VIDEO BUFFER)8-2. Electrical Parts List ....................................................... 8-5
Printed Wiring Board ..................................................... 4-39
AU-215 (AUDIO) Schematic Diagram ........................... 4-43
AU-215 (VIDEO BUFFER) Schematic Diagram ........... 4-45
FL-104 (FUNCTION SWITCH/IF CON), SW-321
(FUNCTION SWITCH) and CK-88 (CONNECTION)
Printed Wiring Boards ................................................... 4-47
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ACEC
SONY
