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CPD-E250
SECTION TITLE
PAGE
Power
Management.................................................................................................................................. 4
Self Diagnosis Function ............................................................................................................................ 4
Timing
SpeciÞ cation.................................................................................................................................. 4
Warnings and Cautions............................................................................................................................. 5
Safety
Check-Out
.................................................................................................................................... 6
1. Disassembly
1-1. Cabinet Removal ............................................................................................................................... 7
1-2. Service Position................................................................................................................................. 7
1-3. A and D Board Removal .................................................................................................................... 8
1-4.
Picture
Tube
Removal ....................................................................................................................... 9
Anode Cap Removal ......................................................................................................................... 9
2. Safety Related Adjustments
2-1. HV Regulator Check........................................................................................................................ 10
2-2. HV Protector Circuit Check.............................................................................................................. 10
2-3. Beam Protector Check (Software Logic) ......................................................................................... 10
2-4.
B+
Voltage
Check............................................................................................................................ 10
3. Adjustments
3-1. Landing Rough Adjustment ..............................................................................................................11
3-2. Landing Fine Adjustment ..................................................................................................................11
3-3. Convergence Rough Adjustment......................................................................................................11
3-4. Convergence and V. Key (H. TRP) Fine Adjustment ........................................................................11
3-5. Vertical and Horizontal Position and Size SpeciÞ cation .................................................................. 12
3-6.
Focus
Adjustment ............................................................................................................................ 13
3-7. Digital Convergence Adjustment ..................................................................................................... 13
3-8. Convergence SpeciÞ cation.............................................................................................................. 13
4. Diagrams
4-1. Circuit Boards Location ................................................................................................................... 14
4-2. Printed Wiring Board and Schematic Diagram Information ............................................................. 14
4-3. Block Diagrams ............................................................................................................................... 15
A
Block
Diagram.............................................................................................................................. 15
D Block Diagram ............................................................................................................................. 16
4-4. Schematics and Supporting Information.......................................................................................... 17
A Board - Schematic Diagram......................................................................................................... 17
D Board - Schematic Diagram ........................................................................................................ 19
H1 Board - Schematic Diagram ...................................................................................................... 21
4-5.
Semiconductors............................................................................................................................... 22
5. Exploded Views
5-1.
5-1.
Picture
Tube
................................................................................................................................... 23
5-2.
Chassis............................................................................................................................................ 24
5-3. Packing Materials ............................................................................................................................ 25
6. Electrical Parts List ....................................................................................................................................... 26
TABLE OF CONTENTS
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