Sony KDL-32U2520, Service Manual

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SE-1
RM-ED007
TABLE OF CONTENTS
Section Title Page Section Title Page
1. GENERAL
Caution ............................................................... 3
Specifications ...................................................... 4
Connectors .......................................................... 5
Self Diagnosis ..................................................... 7
2. DISASSEMBLY
2-1. Stand Removal .................................................... 8
2-2. Rear Cover Removal ........................................... 8
2-3. Speaker Removal ................................................ 9
2-4. A1 Board Removal ............................................. 9
2-5. BDTR-2 Board Removal .................................... 10
2-6. G1/G2 Board Removal ....................................... 10
2-7. H1 Board Removal ............................................. 11
2-8. H2 Board Removal ............................................. 11
2-9. H3 Board Removal ............................................. 12
2-10. Bracket Removal ................................................. 12
2-11. LCD Panel Removal ........................................... 13
3. CIRCUIT ADJUSTMENTS
3-1. Electrical Adjustments ....................................... 14
3-2. Test Mode 2 ....................................................... 16
3-3. TT OSD Labels .................................................. 17
4. DIAGRAMS
4-1. Block Diagrams(1) ............................................. 18
Block Diagrams(2) ............................................. 19
Block Diagrams(3) ............................................. 20
Block Diagrams(4) ............................................. 21
Block Diagrams(5) ............................................. 22
4-2. Circuit Board Location ........................................ 22
4-3. Schematic Diagrams and Printed Wiring
Boards ................................................................. 22
A1/A1P Board Schematic Diagram .................... 23
BDTR-2 Board Schematic Diagram ................... 31
G1 Board Schematic Diagram (32 inches) ........ 54
G2 Board Schematic Diagram (40 inches) ........ 59
H1/H1P Board Schematic Diagram .................... 64
H2/H2P Board Schematic Diagram .................... 64
H3/H3P Board Schematic Diagram .................... 64
A1/A1P Printed Wiring Board ......................... 65
H1/H1P Printed Wiring Board ......................... 65
H2/H2P Printed Wiring Board ......................... 65
H3/H3P Printed Wiring Board ......................... 65
BDTR-2 Printed Wiring Board ......................... 66
G1 Printed Wiring Board (32 inches) ........ 67
G2 Printed Wiring Board (40 inches) ...... 68
5. EXPLODED VIEWS
5-1. Chassis ................................................................ 70
5-2. Rear Cover & Bezel ............................................ 71
6. ELECTRICAL PARTS LIST .................................. 72
SAFETY-RELATED COMPONENT WARNING !!
COMPONENTS IDENTIFIED BY SHADING AND MARKED ON
THE SCHEMATIC DIAGRAMS, EXPLODED VIEWS AND IN THE
PARTS LIST ARE CRITICAL FOR SAFE OPERATION. REPLACE
THESE COMPONENTS WITH SONY PARTS WHOSE PART
NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN
SUPPLEMENTS PUBLISHED BY SONY.
WARNING !!
AN ISOLATION TRANSFORMER SHOULD BE USED DURING
ANY SERVICE WORK TO AVOID POSSIBLE SHOCK HAZARD
DUE TO LIVE CHASSIS, THE CHASSIS OF THIS RECEIVER IS
DIRECTLY CONNECTED TO THE POWER LINE.