XBR-65/75X850E
TROUBLE SHOOTING
FLOW
1-2. NO POWER U-COM FAILURE
21
Check P_ON_HL
CL414 or P-on ucom #pin18
is >3.0V?
no
yes
If X_BL_MUTE (R441) is >3.0V
Check BL_ON
R527 or P-on ucom #pin7
Is the voltage >3.0V?
no
yes
Check P_ON_#2
CL417 or P-on ucom #pin13
is >3.0V?
no
Check ORESETB
CL416 or P-on ucom #pin14
Is the voltage >3.0V?
no
yes
yes
Check X_SYSTEM_RST
CL412 or P-on ucom #pin20
Is the voltage >3.0V?
Change IC401
no
yes
Change IC401
Change IC401
Change IC401
Change IC401
END
Ucom IC401 is working OK
Previous page
Summary of Contents for BRAVIA XBR-65X850E
Page 61: ...XBR 65 75X850E DISASSEMBLY 1 6 TAPE 1 XBR 65X850E 61 TAPE TAPE ...
Page 62: ...XBR 65 75X850E DISASSEMBLY 1 7 TAPE 1 XBR 65X850E 62 TAPE TAPE TAPE ...
Page 64: ...TAPE TAPE XBR 65 75X850E DISASSEMBLY 1 9 TAPE 1 XBR 65X850E 64 ...
Page 65: ...TAPE XBR 65 75X850E DISASSEMBLY 1 10 TAPE AND WIRE DRESSING 1 XBR 65X850E 65 TAPE ...
Page 68: ...XBR 65 75X850E DISASSEMBLY 1 13 WIRE DRESSING 1 XBR 65X850E 68 1 2 3 ...
Page 76: ...XBR 65 75X850E DISASSEMBLY 1 21 SLIDE CLAMP 1 XBR 65X850E 76 1 2 1 2 SLIDE CLAMP SLIDE CLAMP ...
Page 77: ...XBR 65 75X850E DISASSEMBLY 1 22 BRACKET SIDE SBT M 1 XBR 65X850E 77 1 3 2 BRACKET SIDE SBT M ...
Page 87: ...XBR 65 75X850E DISASSEMBLY 2 2 COVER TOP FRE 2 SMART CORE H65 87 1 NOTE 2 3 4 COVER TOP FRE ...
Page 94: ...XBR 65 75X850E DISASSEMBLY 3 6 TAPE 3 XBR 75X850E 94 TAPE TAPE TAPE TAPE ...
Page 97: ...XBR 65 75X850E 3 9 TAPE 3 XBR 75X850E 97 TAPE TAPE TAPE DISASSEMBLY ...
Page 99: ...XBR 65 75X850E 3 11 WIRE DRESSING 3 XBR 75X850E 99 DISASSEMBLY ...
Page 100: ...XBR 65 75X850E 3 12 WIRE DRESSING 3 XBR 75X850E 100 1 2 DISASSEMBLY ...
Page 106: ...XBR 65 75X850E DISASSEMBLY 3 18 TAPE 3 XBR 75X850E 106 1 TAPE TAPE TAPE TAPE NOTE 2 ...
Page 119: ...XBR 65 75X850E DISASSEMBLY 4 2 COVER TOP FRE 4 SMART CORE H 119 1 2 3 4 COVER TOP FRE NOTE ...