Read Sony KV-HG21M80 Service Manual online
– 2 –
KV-HG21M80/M88
RM-GA002
TABLE OF CONTENTS
SELF DIAGNOSTIC FUNCTION ................................. 3
1. DISASSEMBLY
1-1.
Rear Cover Removal .............................................. 5
1-2.
Speaker Removal ................................................... 5
1-3.
Chassis Assy Removal ........................................... 5
1-4.
Service Position ..................................................... 5
1-5.
H3 Board Removal ................................................ 5
1-6.
A Board Removal .................................................. 5
1-7.
Picture Tube Removal ............................................ 6
2. WIRE DRESSING
2-1.
H3 Board Caution Point ........................................ 7
2-2.
UL wire P/N 1-923-082-52 dressing
on A Board ............................................................. 7
on A Board ............................................................. 7
2-3.
Mount Caution for Connector Assy, 5P(200V) ..... 7
2-4.
Wire dressing on C board ...................................... 8
2-5.
Wire dressing on A board ...................................... 8
2-6.
Conn Assy, 5P (YUV) & Lead Assy,
Jumper dressing ..................................................... 8
Jumper dressing ..................................................... 8
2-7.
AC Power Cord, Lead Assy, Earth,
Lead Assy & Speaker (Right & Left) dressing ..... 9
Lead Assy & Speaker (Right & Left) dressing ..... 9
2-8.
Earth Coating Assy installation at CRT ................ 9
2-9.
Earth Assy, Coating dressing ............................... 10
2-10. AC Power Cord, Lead Assy, Earth, Lead Assy,
Speaker (Right & Left) & DGC Conn dressing .. 10
2-11. Lead Assy, Speaker (Right) & DGC
Conn dressing ...................................................... 10
2-12. Lead Assy, Speaker (Left), AC Power Cord
and Front Control wire dressing .......................... 11
2-13. DY Conn & Conn Assy, 5P (200V) dressing ...... 11
2-14. Lead Assy, G2 & Focus dressing ......................... 12
2-15. Conn Assy, 7P, UL Wire (1-923-000-81), Lead
2-14. Lead Assy, G2 & Focus dressing ......................... 12
2-15. Conn Assy, 7P, UL Wire (1-923-000-81), Lead
Assy, Earth & Rotational Coil Conn dressing .... 12
2-16. HV Cap Assy dressing ......................................... 13
2-17. AC Power Cord dressing ..................................... 13
2-17. AC Power Cord dressing ..................................... 13
3. SET-UP ADJUSTMENTS
3-1.
Beam Landing Adjustment .................................. 14
3-2.
Convergence Adjustment ..................................... 14
3-3.
Focus Adjustment ................................................ 16
3-4.
G2 (SCREEN) Adjustments ................................ 16
3-5
White Balance Adjustment .................................. 16
3-6
Sub Bright Adjustment ........................................ 16
Section
Title
Page
Section
Title
Page
4. CIRCUIT ADJUSTMENTS
4-1.
Adjustments With Commander ........................... 17
4-2.
Adjustment Method ............................................. 18
4-3.
Picture Quality Adjustment ................................. 34
4-3-1. P Max/Contrast Adjustment .................... 34
4-3-2. Sub Color Adjustment ............................. 34
4-3-3. Sub Hue Adjustment ................................ 34
4-3-1. P Max/Contrast Adjustment .................... 34
4-3-2. Sub Color Adjustment ............................. 34
4-3-3. Sub Hue Adjustment ................................ 34
4-4.
Geometry Adjustment .......................................... 34
4-4-1. General Setting ........................................ 34
4-4-2. Pal 50Hz Normal Mode ........................... 35
4-4-1. General Setting ........................................ 34
4-4-2. Pal 50Hz Normal Mode ........................... 35
5. DIAGRAMS
5-1.
Block Diagram ..................................................... 36
5-2.
Circuit Boards Location ...................................... 37
5-3.
Schematic Diagram Information ......................... 37
5-3-1. A Board — (Block 001) .......................... 38
5-3-2. A Board — (Block 002) .......................... 40
5-3-3. A Board — (Block 003) .......................... 42
5-3-4. A Board — (Block 004) .......................... 44
5-3-5. A Board — (Block 005) .......................... 46
5-3-6. A Board — (Block 006) .......................... 48
5-3-7. A Board —(Block 007) ........................... 50
5-3-8. C Board Schematic Diagram ................... 51
5-3-9. H3 Board Schematic Diagram ................. 52
5-3-1. A Board — (Block 001) .......................... 38
5-3-2. A Board — (Block 002) .......................... 40
5-3-3. A Board — (Block 003) .......................... 42
5-3-4. A Board — (Block 004) .......................... 44
5-3-5. A Board — (Block 005) .......................... 46
5-3-6. A Board — (Block 006) .......................... 48
5-3-7. A Board —(Block 007) ........................... 50
5-3-8. C Board Schematic Diagram ................... 51
5-3-9. H3 Board Schematic Diagram ................. 52
5-4.
Voltage Measurement and Waveforms ................ 53
5-5.
Printed Wiring Boards ......................................... 56
5-6.
Semiconductors .................................................... 59
6. EXPLODED VIEWS
6-1.
Chassis ................................................................. 61
7. ELECTRICAL PARTS LIST ........................................ 63
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.
Click on the first or last page to see other KV-HG21M80 service manuals if exist.