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Sony KDL-52V4100 Service Manual - Page 18

Balancer (ETC- Inverter MT) Board Removal, Remove 7 screws from each Inverter Cover - kdl 52w4100 lcd replacement panel

UPC - 027242736177

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1-10. BALANCER (ETC-INVERTER MT) BOARD REMOVAL 1 Remove 7 screws from each Inverter Cover 2 Pull out the Balancer board from the Lamp Socket. KDL-52V4100/52W4100 LCD Panel 2 1 1 Balancer Board Shield WARNING! NEVER REMOVE THE SCREWS SECURING THE PLASTIC STRIP HOLDING THE LAMP SOCKETS DAMAGE TO THE . BACKLIGHT TUBES WILL OCCUR! REMOVE SCREWS SECURING SHIELD REMOVE CONNECTORS AND PULL BOARDS TO THE RIGHT SHIELD REMOVAL KDL-52V4100/52W4100 END VIEW SOCKET BACKLIGHT BALANCER (ETC-INVERTER) BOARD REMOVAL Only remove the screws securing the inverter cover which may be metal or plastic. The remaining plastic strip contains sockets for the ﬂuorescent backlights and should never be loosened. The backlights will pop out of the sockets and/or break the backlight requiring a LCD panel replacement. 18

Section	Page
HISTORY INFORMATION	1
FRONT COVER	2
Table of Contents	3
Specifications	4
Warnings and Cautions - English	6
Warnings and Cautions - French	7
Safety-Related Component Warning	8
Safety Check-Out	10
Self-Diagnostic Function	11
SECTION 1: DISASSEMBLY	13
1-1. Rear Cover Removal	13
1-2. Switch Unit Removal (Contains the H1 Board)	13
1-3. Side Jack Bracket, BU Shield and BU Board Removal	14
1-4. G5 Board (Power Unit) and D4Z Board, and D5 Board Removal	14
1-5. Stand and Under Cover Removal	15
1-6. AC Inlet Removal	15
1-7. Structural Frames and Brackets Removal	16
1-8. Speakers, Under Bar, H3E Board, H4 Board, and Light Guide Removal	17
1-9. LCD Panel Removal	17
1-10. Balancer (ETC- Inverter MT) Board Removal	18
WIRE DRESSING	19
KDL-52V4100 Only	19
KDL-52W4100 Only	35
SECTION 2: SERVICE ADJUSTMENTS	53
2-1. Viewing Service Adjustment Data	53
2-2. Accessing Service Adjustment Mode	53
2-3. Viewing the Service Menus	53
2-4. Using the Remote Commander to View Service Data	54
2-5. Resetting to Factory Defaults	54
SECTION 3: DIAGRAMS	55
3-1. Circuit Boards Location	55
3-2. Printed Wiring Boards and Schematic Diagrams Information	55
3-3. Block Diagram	57
3-4. Schematics and Supporting Information	58
BU Board Schematic Diagram (1 of 12)	58
BU Board Schematic Diagram (2 of 12)	59
BU Board Schematic Diagram (3 of 12)	60
BU Board Schematic Diagram (4 of 12)	61
BU Board Schematic Diagram (5 of 12)	62
BU Board Schematic Diagram (6 of 12)	63
BU Board Schematic Diagram (7 of 12)	64
BU Board Schematic Diagram (8 of 12)	65
BU Board Schematic Diagram (9 of 12)	66
BU Board Schematic Diagram (10 of 12)	67
BU Board Schematic Diagram (11 of 12)	68
BU Board Schematic Diagram (12 of 12)	69
D4Z Board Schematic Diagram	71
D5 Board Schematic Diagram	73
G5 Board Schematic Diagram	75
H3E Board Schematic Diagram	78
H4 Board Schematic Diagram	80
3-5. Semiconductors	82
SECTION 4: EXPLODED VIEWS	83
4-1. Rear Cover Assembly and Stand Assembly	83
4-2. Chassis	84
4-3. Connectors	85
4-4. Bezel Assembly and LCD Panel	86
4-5. Screw Legend	87
SECTION 5: ELECTRICAL PARTS LIST	88
BU	88
D4Z	103
D5	106
G5	107
H3E	111
H4	112
Accessories and Packing	112
Miscellaneous	112
Remote Commander	112
APPENDIX A: ENCRYPTION KEY COMPONENTS	113