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GDM-F520
TABLE OF CONTENTS
SECTION TITLE
PAGE
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
