KLV-20S400A - Sony TV Service Manual (repair manual). Page 3

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1-1. Caution Handling of LCD Panel ..................................... 3
1-2. Safety Check Out ............................................................. 3
1-3. Leakage Test .................................................................... 3
1-4. WARNING ! .................................................................... 3
1-5. Lead Free Information ..................................................... 4

2-1. Overview of Control Buttons .......................................... 5
2-2. LED Display Specification .............................................. 5
2-3. LED Display Control ....................................................... 5
2-4. LED Pattern ..................................................................... 5
2-5. Standby LED Error Display ............................................ 6

3-1. Rear Cover and Stand Assy Removal ............................. 7
3-2. H1S Board Removal ........................................................ 7
3-3. GD Board and Bracket Removal ..................................... 7
3-4. Inverter Board Removal .................................................. 7
3-5. Side Jack Bracket Assy and BG1 Board Removal ......... 7
3-6. Vesa Frame Removal ....................................................... 7
3-7. H3S Board, Speaker Bracket and

Loudspeaker Removal ..................................................... 8

3-8. LCD Panel and Bezel Assy Removal .............................. 8

4-1. Wire Dressing Overview (for Non-CISPR model) ......... 9
4-2. Wire Dressing Overview (for CISPR model) ................. 9
4-3. Dress LVDS cable with Sheet Core C

(for Non-CISPR model) .................................................. 9

4-4. Dress LVDS cable with Sheet Core C & Shield Tape

 (for CISPR model) .......................................................... 9

4-5. Insert wire from panel to inverter board and make sure

wire color is matching with color on connector ............. 9

4-6. Dress Connector Assy 14P+20P with Sheet Core C. ..... 9
4-7. Dress Connector Assy 14P+20P with LCD tape(3X) ... 10
4-8. 1) Dress Connector Assy 14P+20P at GD

 bracket hook(6X)

2) Dress Speaker wire at GD bracker's hook(4X)
3) Dress speaker wire with LCD tape ........................... 10

4-9. Dress LVDS cable with Sheet Core C

(for Non-CISPR model) ................................................ 10

4-10.Screw LVDS cable's clamp on main bracket

(for CISPR model) ......................................................... 10

4-11.1) Screw Connector Assy 1P on BG1 & bottom Bracket

2) Put Connector Assy 1P underneath Speaker wire .... 11

4-12.Install AC cord holder on AC power cord and dress

at GD bracket's hook ..................................................... 11

5-1. Accessing Diagnostic Menu .......................................... 12
5-2. Aging ............................................................................ 12
5-3. Resetting the User Menu- Factory Reset ...................... 12
5-4. White Balance Adjustment ............................................ 13
5-5. Board & Panel Replacement ......................................... 13

6-1. Block Diagram ............................................................... 14
6-2. Circuit Board Location .................................................. 14
6-3. Schematic Diagram ....................................................... 15
6-4. Printed Wiring Boards ................................................... 15
6-5. Semiconductor ............................................................... 15

7-1. Rear Cabinet .................................................................. 16
7-2. Power Cord, AC Cord Holder, Chassis, H1S Boards ... 17
7-3. GD, BG1, Inverter Boards, Bezel Assy and

LCD Panel ..................................................................... 18

7-4. Speaker, H3S Board ...................................................... 19

.............................................. 20