Sony gdm-f520 monitor Service Manual

Power Management .................................................................................................................................. 4
Diagnosis Function.................................................................................................................................... 4
Timing Specification .................................................................................................................................. 5
Warnings and Cautions............................................................................................................................. 6
Safety Check-Out...................................................................................................................................... 7

SECTION 1: DISASSEMBLY.................................................................................................................................. 8

1-1.  Cabinet Removal............................................................................................................................. 8
1-2.  Service Position............................................................................................................................... 9
1-3.  A2 Board (C Block) Removal ........................................................................................................ 10
1-4.  A2 Board & US Board Removal .................................................................................................... 10
1-5.  Bezel Assembly and H2 Board Removal........................................................................................11
1-6.  D Board Removal .......................................................................................................................... 12
1-7.  Picture Tube Removal ................................................................................................................... 13
 

Anode Cap Removal ..................................................................................................................... 13

1-8.  Harness Location .......................................................................................................................... 14

SECTION 2: SAFETY RELATED ADJUSTMENTS.............................................................................................. 15

2-1.  HV Regulator Circuit Check .......................................................................................................... 15
2-2.  HV Protector Circuit Check............................................................................................................ 15
2-3.  Beam Current Protector Circuit Check .......................................................................................... 15

SECTION 3: ADJUSTMENTS .............................................................................................................................. 16

3-1.  Landing Rough Adjustment ........................................................................................................... 16
3-2.  Landing Fine Adjustment............................................................................................................... 16
3-3.  Convergence Rough Adjustment................................................................................................... 17
3-4.  White Balance Adjustment Specification ....................................................................................... 17
3-5.  Vertical and Horizontal Position and Size Specification ................................................................ 18
3-6.  Focus Adjustment.......................................................................................................................... 18

SECTION 4: DIAGRAMS...................................................................................................................................... 19

4-1.  Circuit Boards Location ................................................................................................................. 19
4-2.  Printed Wiring Board and Schematic Diagram Information........................................................... 19
4-3.  Block Diagrams ............................................................................................................................. 20
 

A2 Block Diagram, H2 Block Diagram, and L2 Block Diagram ..................................................... 20

DA Block Diagram, N Block Diagram, and US Block Diagram...................................................... 21

D Block Diagram ........................................................................................................................... 22

4-4.  Schematics and Supporting Information ....................................................................................... 23
 

H2 Board Schematic Diagram....................................................................................................... 23

US Board Schematic Diagram ...................................................................................................... 24

A2 Board Schematic Diagram ....................................................................................................... 26

D Board Schematic Diagram......................................................................................................... 29

DA Board Schematic Diagram....................................................................................................... 31

N Board Schematic Diagram......................................................................................................... 33

L2 Board Schematic Diagram ....................................................................................................... 34

4-5.  Semiconductors............................................................................................................................. 35

SECTION 5: EXPLODED VIEW ........................................................................................................................... 37

5-1.  Chassis.......................................................................................................................................... 37
5-2.  Picture Tube .................................................................................................................................. 38
5-3.  Packing Materials (AEP Models Only)........................................................................................... 39
5-4.  Packing Materials (US and Canada Models Only) ........................................................................ 40

SECTION 6:  ELECTRICAL PARTS LIST............................................................................................................ 41