Sony Trinitron KV-24FV12 - Table of Contents

— 3 —
KV-24FV12/25FV12/25FV12A/25FV12C
Section Title Page
Warnings and Cautions ............................................................................................................................................................... 4
Self-Diagnostic Function ............................................................................................................................................................. 4
Safety Check-Out Instructions .................................................................................................................................................... 7
1. GENERAL ........................................................................................................................................................... 8
2. DISASSEMBLY
2-1. Rear Cover Removal.....................................................................................................................................................13
2-2. Chassis Assembly Removal .........................................................................................................................................13
2-3. Service Position ............................................................................................................................................................13
2-4. Picture Tube Removal ...................................................................................................................................................14
3. SET-UP ADJUSTMENTS
3-1. Beam Landing ............................................................................................................................................................... 15
3-2. Convergence.................................................................................................................................................................16
3-3. Focus.............................................................................................................................................................................17
3-4. Screen (G2)...................................................................................................................................................................17
3-5. Method of Setting the Service Adjustment Mode .........................................................................................................18
3-6. White Balance Adjustments .......................................................................................................................................... 18
4. SAFETY RELATED ADJUSTMENTS
4-1. R564 Confirmation Method (HV Hold-Down Confirmation and Readjustments) .................................................... 19
4-2. B+ Voltage Confirmation and Adjustment ..................................................................................................................... 19
5. CIRCUIT ADJUSTMENTS
5-1. Setting the Service Adjustment Mode ..........................................................................................................................21
5-2. Memory Write Confirmation Method .............................................................................................................................21
5-3. Adjustment Buttons and Indicators ...............................................................................................................................21
5-4. A Board Adjustments ....................................................................................................................................................23
6. DIAGRAMS
6-1. Block Diagram ...............................................................................................................................................................27
6-2. Circuit Board Location ..................................................................................................................................................31
6-3. Printed Wiring Boards and Schematic Diagrams .........................................................................................................31
• A Board ....................................................................................................................................................................33
• MB Board .................................................................................................................................................................39
• CB Board .................................................................................................................................................................. 45
• HZ Board .................................................................................................................................................................. 46
• K Board ....................................................................................................................................................................47
• VB Board ..................................................................................................................................................................48
6-4. Semiconductors ............................................................................................................................................................49
7. EXPLODED VIEW
7-1. Chassis (KV-24FV12 ONLY) ........................................................................................................................................50
7-2. Chassis (KV-25FV12A ONLY).......................................................................................................................................51
7-3. Chassis (KV-25FV12/25FV12C ONLY)........................................................................................................................52
8. ELECTRICAL PARTS LIST................................................................................................................................................. 53
TABLE OF CONTENTS