Read Sony KV-HG21M85 Service Manual online
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KV-HG21M81/HG21M85
RM-GA002
TABLE OF CONTENTS
SELF DIAGNOSTIC FUNCTION ....................................... 3
1. DISASSEMBLY
1-1.
3D Box Removal ......................................................... 5
1-2.
Rear Cover Removal ................................................... 5
1-3.
Speaker Removal ......................................................... 5
1-4.
Chassis Assy Removal ................................................. 5
1-5.
Service Position ........................................................... 5
1-6.
Terminal Bracket and J Board Removal ..................... 5
1-7.
A Board Removal ........................................................ 6
1-8.
Picture Tube Removal ................................................. 6
2. WIRE DRESSING
2-1.
Insert NS Coil Connector to A PWB ........................... 8
2-2.
Insert DGC Connector to A PWB ............................... 8
2-3.
Install DY Connector to A PWB ................................. 8
2-4.
Insert Earth Coating Assy to CV PWB ....................... 9
2-5.
Install HV Cap Assy to FBT ........................................ 9
2-6.
Install CV PWB to CRT Neck ..................................... 9
2-7.
Dress Connector DY & Connector Assy 5P
with purse lock Ø 5 .................................................... 10
with purse lock Ø 5 .................................................... 10
2-8.
Install HV Cable Holder to HV Lead Assy ............... 10
2-9.
Dress HV Holder, Combi to DGC with purse
lock Ø 9 ...................................................................... 11
lock Ø 9 ...................................................................... 11
2-10. Dress Conn Assy 7P with cable tie ........................... 11
2-11. Dress rotation coil, Conn. Assy, 7P, Lead Assy,
2-11. Dress rotation coil, Conn. Assy, 7P, Lead Assy,
Earth & Lead Assy Jumper with purse lock Ø 9 ....... 12
2-12. Insert Filter Clamp to Lead Assy Jumper ................. 12
2-13. Dress Lead Assy, G2 & Focus ................................... 13
2-14. Insert G2 Lead Assy .................................................. 13
2-15. Insert Focus Lead Assy to FBT ................................. 13
2-16. Insert G2 Lead Assy at CN704 (CV PWB) ............... 13
2-17. Insert Focus Lead Assy to CV PWB ......................... 14
2-18. Insert Conn Assy 5P to A PWB ................................. 14
2-19. Insert Lead Assy, Speaker at A PWB ........................ 14
2-20. Insert Conn Assy 7P to CN701 (CV PWB) .............. 14
2-21. Dress Conn Assy 7P with Pin Lead to CV PWB ...... 15
2-22. Insert Conn. AC Cord Power to CN603 (A PWB) ... 15
2-23. Insert Conn. AC Cord Power to CN602
2-13. Dress Lead Assy, G2 & Focus ................................... 13
2-14. Insert G2 Lead Assy .................................................. 13
2-15. Insert Focus Lead Assy to FBT ................................. 13
2-16. Insert G2 Lead Assy at CN704 (CV PWB) ............... 13
2-17. Insert Focus Lead Assy to CV PWB ......................... 14
2-18. Insert Conn Assy 5P to A PWB ................................. 14
2-19. Insert Lead Assy, Speaker at A PWB ........................ 14
2-20. Insert Conn Assy 7P to CN701 (CV PWB) .............. 14
2-21. Dress Conn Assy 7P with Pin Lead to CV PWB ...... 15
2-22. Insert Conn. AC Cord Power to CN603 (A PWB) ... 15
2-23. Insert Conn. AC Cord Power to CN602
& CN604 (A PWB) ................................................... 15
3. SET-UP ADJUSTMENTS
3-1.
Beam Landing Adjustment ........................................ 16
3-2.
Convergence Adjustment ........................................... 16
3-3.
Focus Adjustment ...................................................... 18
3-4.
G2 (SCREEN) Adjustment ........................................ 18
3-5.
White Balance Adjustment ........................................ 18
3-6.
Sub Bright Adjustment .............................................. 18
4. CIRCUIT ADJUSTMENTS
4-1.
Adjustments With Commander ................................. 19
4-2.
Adjustment Method ................................................... 20
4-3.
Picture Quality Adjustment ....................................... 37
4-3-1. P MAX/Contrast Adjustment ......................... 37
4-3-2. Sub Color Adjustment .................................... 37
4-3-3. Sub Hue Adjustment ....................................... 37
4-3-1. P MAX/Contrast Adjustment ......................... 37
4-3-2. Sub Color Adjustment .................................... 37
4-3-3. Sub Hue Adjustment ....................................... 37
4-4.
Geometry Adjustment ................................................ 38
4-4-1. General Setting ............................................... 38
4-4-2. Pal 50Hz Normal Mode .................................. 38
4-4-1. General Setting ............................................... 38
4-4-2. Pal 50Hz Normal Mode .................................. 38
5. DIAGRAMS
5-1.
Block Diagram ........................................................... 39
5-2.
Circuit Boards Location ............................................ 40
5-3.
Schematic Diagram Information ............................... 40
5-3-1. A Board — (Block 001) .................................. 41
5-3-2. A Board — (Block 002) .................................. 43
5-3-3. A Board — (Block 003) .................................. 45
5-3-4. A Board — (Block 004) .................................. 47
5-3-5. A Board — (Block 005) .................................. 49
5-3-6. A Board — (Block 006) .................................. 51
5-3-7. A Board — (Block 007) .................................. 53
5-3-8. CV Board Schematic Diagram ....................... 55
5-3-9. J Board Schematic Diagram .......................... 57
5-3-1. A Board — (Block 001) .................................. 41
5-3-2. A Board — (Block 002) .................................. 43
5-3-3. A Board — (Block 003) .................................. 45
5-3-4. A Board — (Block 004) .................................. 47
5-3-5. A Board — (Block 005) .................................. 49
5-3-6. A Board — (Block 006) .................................. 51
5-3-7. A Board — (Block 007) .................................. 53
5-3-8. CV Board Schematic Diagram ....................... 55
5-3-9. J Board Schematic Diagram .......................... 57
5-4.
Voltage Measurement and Waveforms ...................... 58
5-5.
Printed Wiring Boards ............................................... 61
5-6.
Semiconductors .......................................................... 64
6. EXPLODED VIEWS
6-1.
Picture Tube, Speaker Bracket and Chassis .............. 66
6-2.
3D Speaker ................................................................. 66
7. ELECTRICAL PARTS LIST .............................................. 68
OPERATING INSTRUCTIONS
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY SHADING AND MARK
! ON THE
SCHEMATIC DIAGRAMS, EXPLODED VIEWS AND IN THE
PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE
THESE COMPONENTS WITH SONY PARTS WHOSE PART
NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN
SUPPLEMENTS PUBLISHED BY SONY.
PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE
THESE COMPONENTS WITH SONY PARTS WHOSE PART
NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN
SUPPLEMENTS PUBLISHED BY SONY.
CAUTION
SHORT CIRCUIT THE ANODE OF THE PICTURE TUBE AND THE
ANODE CAP TO THE METAL CHASSIS, CRT SHIELD, OR
CARBON PAINTED ON THE CRT, AFTER REMOVING THE
ANODE.
ANODE CAP TO THE METAL CHASSIS, CRT SHIELD, OR
CARBON PAINTED ON THE CRT, AFTER REMOVING THE
ANODE.
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