XBR-55/65X930E, 75X940E
TROUBLE SHOOTING
FLOW
1-2. NO POWER U-COM FAILURE
22
Check P_ON_HL
CL414 or P-on ucom #pin18
is >3.0V?
no
yes
If X_LED_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-75X940E
Page 72: ...XBR 55 65X930E 75X940E DISASSEMBLY 1 7 COVER BTM L PUC 1 XBR 55X930E 72 1 2 3 COVER BTM L PUC ...
Page 81: ...XBR 55 65X930E 75X940E DISASSEMBLY 1 16 TAPE 1 XBR 55X930E 81 TAPE TAPE 1 2 NOTE ...
Page 82: ...XBR 55 65X930E 75X940E DISASSEMBLY 1 17 TAPE 1 XBR 55X930E 82 NOTE 1 2 TAPE 3 TAPE TAPE ...
Page 86: ...XBR 55 65X930E 75X940E DISASSEMBLY 1 21 TAPE 1 XBR 55X930E 86 NOTE TAPE TAPE TAPE 1 2 3 ...
Page 87: ...XBR 55 65X930E 75X940E DISASSEMBLY 1 22 TAPE 1 XBR 55X930E 87 NOTE 1 TAPE 2 3 TAPE TAPE ...
Page 92: ...XBR 55 65X930E 75X940E DISASSEMBLY 1 27 WIRE DRESSING 1 XBR 55X930E 92 1 3 2 4 ...
Page 99: ...XBR 55 65X930E 75X940E DISASSEMBLY 1 34 TAPE 1 XBR 55X930E 99 NOTE 1 2 3 TAPE TAPE TAPE ...
Page 133: ...XBR 55 65X930E 75X940E DISASSEMBLY 2 16 TAPE 2 XBR 65X930E 133 NOTE 1 TAPE TAPE TAPE 2 3 ...
Page 134: ...XBR 55 65X930E 75X940E DISASSEMBLY 2 17 TAPE 2 XBR 65X930E 134 NOTE TAPE 1 2 3 TAPE TAPE ...
Page 135: ...XBR 55 65X930E 75X940E DISASSEMBLY 2 18 TAPE 2 XBR 65X930E 135 NOTE TAPE TAPE TAPE 1 2 3 ...
Page 141: ...XBR 55 65X930E 75X940E DISASSEMBLY 2 24 TAPE 2 XBR 65X930E 141 TAPE NOTE 1 2 3 TAPE TAPE ...
Page 144: ...XBR 55 65X930E 75X940E DISASSEMBLY 2 27 WIRE DRESSING 2 XBR 65X930E 144 1 3 4 2 ...
Page 182: ...XBR 55 65X930E 75X940E DISASSEMBLY 3 14 TAPE 3 XBR 75X940E 182 NOTE 1 2 3 TAPE TAPE TAPE ...
Page 184: ...XBR 55 65X930E 75X940E DISASSEMBLY 3 16 TAPE 3 XBR 75X940E 184 NOTE 1 2 3 TAPE TAPE TAPE ...
Page 190: ...XBR 55 65X930E 75X940E DISASSEMBLY 3 22 TAPE 3 XBR 75X940E 190 NOTE 1 2 3 TAPE TAPE TAPE ...
Page 191: ...XBR 55 65X930E 75X940E DISASSEMBLY 3 23 WIRE DRESSING 3 XBR 75X940E 191 1 2 3 4 ...
Page 198: ...XBR 55 65X930E 75X940E DISASSEMBLY 3 30 TAPE 3 XBR 75X940E 198 NOTE 1 2 3 TAPE TAPE TAPE ...
Page 217: ...XBR 55 65X930E 75X940E DISASSEMBLY 3 48 FFC 75 3 XBR 75X940E 217 1 FFC 75 1 ...
Page 221: ...XBR 55 65X930E 75X940E DISASSEMBLY 3 52 WIRE DRESSING 3 XBR 75X940E 221 2 1 NOTE ...
Page 223: ...XBR 55 65X930E 75X940E DISASSEMBLY 3 54 CUSHION SPACER LD 3L PUC 3 XBR 75X940E 223 NOTE ...