3
KV-27HS420/29DRC420/30HS420/32HS420/34HS420/36HS420
KV-27HS420/29DRC420/30HS420/32HS420/34HS420/36HS420
TABLE OF CONTENTS
SECTION TITLE
PAGE
SECTION TITLE
PAGE
Specifi cations ................................................................................. 4
Warnings and Cautions .................................................................. 6
Safety Check-Out ........................................................................... 7
Self-Diagnostic Function................................................................. 8
SECTION 1: DISASSEMBLY................................................................11
1-1. Rear Cover Removal.............................................................11
1-2. Chassis Assembly Removal..................................................11
1-3. Service Position ....................................................................11
1-4. Picture Tube Removal.......................................................... 12
Anode Cap Removal Procedure........................................... 12
SECTION 2: SET-UP ADJUSTMENTS................................................ 13
2-1. Beam Landing ...................................................................... 13
2-2. V-PIN and V-CEN Adjustment .............................................. 14
2-3. Convergence........................................................................ 14
2-3.1. Vertical and Horizontal Static Convergence ............ 14
2-3.2. Operation of BMC (Hexapole) Magnet .................... 14
2-3.3. TLH
Plate
Adjustment .............................................. 14
2-3.4. Screen-Corner
Convergence................................... 15
2-3.5. Dynamic
Convergence
Adjustments........................ 15
2-4. Focus Adjustment................................................................. 16
2-4.1. Dynamic Focus/Dynamic Quadra-Pole Data ........... 16
2-5. Screen (G2).......................................................................... 17
2-6. Picture Quality Adjustments ................................................. 17
2-6.1. Video Input - Sub Contrast Adjustment.................... 17
2-6.2. Video Input - Sub Hue/Sub Color Adjustment.......... 18
2-6.3. RF Input - Sub Contrast Adjustment ........................ 18
2-6.4. RF Input - Sub Hue/Sub Color Adjustment .............. 19
2-7. White Balance (CRT) and Sub Bright Adjustment................ 19
2-7.1. Color
Offset
Adjustment
Procedure ......................... 19
2-8. H Raster Center Adjustment ................................................ 20
2-9. Picture Distortion Adjustments ............................................. 20
2-9.1. NTSC (DRC) Full Mode Adjustment ........................ 20
2-9.2. 1080i HD Mode Adjustment ..................................... 21
2-9.3. Vertical Compressed Mode Check and Confi rmation
(For 4x3 CRT Only) ................................................. 21
SECTION 3: SAFETY RELATED ADJUSTMENTS............................. 22
3-1. Preparation Before Confi rmation.......................................... 22
3-1.1 Hold-Down Operation Confi rmation......................... 22
3-2. B+ Max Confi rmation ........................................................... 22
3-3. B+ Voltage Check ................................................................ 22
3-4. High Voltage (HV) Check ..................................................... 22
3-5. Preparation for HV and Ik Protector Check.......................... 22
3-6. HV Protector Check ............................................................. 22
3-6-1. Cut Off Condition ..................................................... 22
3-6-2. High Light Condition ................................................ 23
3-7. IK Protector Check ............................................................... 23
3-8. Hold Down Check ................................................................ 23
3-9. Restoration........................................................................... 23
3-10. HV Service Flowchart........................................................... 24
3-10.1. HV Service Flowchart Table..................................... 25
SECTION 4: CIRCUIT ADJUSTMENTS.............................................. 26
4-1. Setting Service Adjustment Mode ........................................ 26
4-1.1. Service Adjustment Mode In .................................... 26
4-1.2. Service Adjustment Mode Memory .......................... 26
4-1.3. Reading the Memory ............................................... 26
4-1.4. Adjusting the Picture................................................ 26
4-1.5. Resetting the Data ................................................... 26
4-1.6. Resetting the MID NVM Data .................................. 26
4-1.7. Resetting the System NVM Data ............................. 26
4-1.8. Copy
Function.......................................................... 26
4-2. Memory Write Confi rmation Method .................................... 27
4-3. Remote Adjustment Buttons and Indicators ......................... 27
4-4. Service Data......................................................................... 28
4-5. ID Map Table ........................................................................ 51
SECTION 5: DIAGRAMS..................................................................... 52
5-1. Circuit Boards Location ........................................................ 52
5-2. Printed Wiring Boards and
Schematic Diagrams Information ......................................... 52
5-3. Block Diagrams .................................................................... 53
5-4. Schematics and Supporting Information .............................. 56
DZ Board Schematic Diagram (1 of 2) ................................. 56
DZ Board Schematic Diagram (2 of 2) ................................. 57
UY Board Schematic Diagram ............................................. 60
HBY Board Schematic Diagram........................................... 61
AY Board Schematic Diagram (1 of 2) ................................. 64
AY Board Schematic Diagram (2 of 2) ................................. 65
HCX Board Schematic Diagram........................................... 68
CH Board Schematic Diagram ............................................. 70
HAX Board Schematic Diagram .......................................... 72
WY Board Schematic Diagram ............................................ 73
BY Board Schematic Diagram (1 of 4) ................................. 75
BY Board Schematic Diagram (2 of 4) ................................. 76
BY Board Schematic Diagram (3 of 4) ................................. 77
BY Board Schematic Diagram (4 of 4) ................................. 78
MY Board Schematic Diagram (1 of 4) ................................ 79
MY Board Schematic Diagram (2 of 4) ................................ 80
MY Board Schematic Diagram (3 of 4) ................................ 81
MY Board Schematic Diagram (4 of 4) ................................ 82
P Board Schematic Diagram ............................................... 85
5-5. Semiconductors (1 of 2) ....................................................... 86
Semiconductors (2 of 2) ....................................................... 87
SECTION 6: EXPLODED VIEWS ........................................................ 88
6-1. Chassis (KV-27HS420/29DRC420) ..................................... 88
6-2. Picture Tube (KV-27HS420/29DRC420) .............................. 89
6-3. Chassis (KV-30HS420/34HS420) ........................................ 90
6-4. Picture Tube (KV-30HS420/34HS420)................................. 91
6-5. Chassis (KV-32HS420/36HS420) ........................................ 92
6-6. Picture Tube (KV-32HS420/36HS420)................................. 93
SECTION 7: ELECTRICAL PARTS LIST........................................... 94
