
XBR-43X830C, 49X830C, 835C, 837C
124
TROUBLE SHOOTING
3-6. SIDE BUTTONS MALFUNCTION
Side Key button
malfunction
Harness on Switch Unit
and B* Board properly connected
Change
Switch unit-B* board Harness
Harness
connection
issue
Change B*Board
Change Switch Unit
Switch unit issue
Harness issue
OK
NG
NG
OK
OK
Power Key (B*Board)
Check parts value :
0 ohm < R1089 < 2 ohm
4.4k ohm < R1432 < 5k ohm
Muffin IC1000
problem
NG
Power Key Muffin Pin (B*Board)
Check voltage(Power ON condition) :
3.13V < Voltage < 3.47V
NG
OK
NG
Key AD(B*Board)
Check parts value :
0 ohm < R1091 < 2 ohm
0 ohm < R1042 < 2 ohm
NG
OK
Parts Broken issue
Key AD muffin pin (B*Board)
Check voltage (Power ON condition):
1.62V < voltage < 1.84V
NG
OK
OK
NG
Summary of Contents for XBR-49X835C
Page 2: ...SERVICE MANUAL LCD TV 9 888 568 01 GN1T CHASSIS Segment XFL ...
Page 21: ...XBR 43X830C 49X830C 835C 837C 21 DISASSEMBLY 1 1 9 TAPE 1 1 XBR 43X830C TAPE TAPE ...
Page 39: ...XBR 43X830C 49X830C 835C 837C 39 DISASSEMBLY 1 1 27 LCD PANEL 1 1 XBR 43X830C LCD PANEL ...
Page 48: ...XBR 43X830C 49X830C 835C 837C 48 DISASSEMBLY 1 2 9 TAPE 1 2 XBR 49X830C 835C 837C TAPE TAPE ...
Page 71: ...XBR 43X830C 49X830C 835C 837C 71 DISASSEMBLY 1 3 5 COVER TOP 1 COVER TOP 2 1 3 SMART CORE ...
Page 75: ...XBR 43X830C 49X830C 835C 837C 75 DISASSEMBLY 1 3 9 CASE BOTTOM M CASE BOTTOM M 1 3 SMART CORE ...
Page 130: ...XBR 43X830C 49X830C 835C 837C 130 SEC 4 DIAGRAMS 4 1 1 UC 4 1 BLOCK DIAGRAM ...
Page 131: ...XBR 43X830C 49X830C 835C 837C 131 DIAGRAMS 4 1 2 LA8 AR4 CR1 ECU BR6 ...
Page 132: ...XBR 43X830C 49X830C 835C 837C 132 DIAGRAMS 4 1 3 CO1 ...
Page 133: ...XBR 43X830C 49X830C 835C 837C 133 DIAGRAMS 4 1 4 MX ...