XBR-49/55/65/75X900E
TROUBLE SHOOTING
FLOW
2-3. LED BLINKING 4X (LED VOLTAGE ERROR AND BCM ERROR)
LED VOLTAGE ERROR
28
4-times blinking
(LED Voltage)
Check “BL_LD_ERR”
at CL1038 on BMKS board
0.95V < Voltage < 1.85V ?
BMKS board
Check “+1.8V_TU”
at C464
on BMKS board
Voltage > 1.78V
Replace Tuner Module
No
Tuner Module
OK
NG
Yes
No
Replace LD board
Yes
LD board
OK
NG
Panel
+1.8V_TU is used in tuner module and 4KPQ.
If +1.8V_TU for 4KPQ is dropped, it can’t output signal for LD.
Then 4x blinking with LD_ERR is occurred.
BCM ERROR
4-times blinking
(BCM Error)
Check “LD_RDY”
At CL4053
on BMKS board
BMKS board
High
Low
Replace
LD board
NG
OK
LD board
Panel
Summary of Contents for BRAVIA XBR-49X900E
Page 52: ...XBR 49 55 65 75X900E TROUBLE SHOOTING BMKS A side view PCB PARTS MAP 52 ...
Page 53: ...XBR 49 55 65 75X900E TROUBLE SHOOTING BMKS B side view PCB PARTS MAP 53 ...
Page 75: ...XBR 49 55 65 75X900E DISASSEMBLY 1 13 WIRE DRESSING 1 XBR 55X900E 75 1 3 4 2 ...
Page 101: ...XBR 49 55 65 75X900E DISASSEMBLY 1 38 LD35 1 XBR 55X900E 101 1 2 LD35 ...
Page 108: ...XBR 49 55 65 75X900E DISASSEMBLY 2 8 TAPE 2 XBR 65X900E 108 1 NOTE 2 3 TAPE TAPE TAPE ...
Page 113: ...XBR 49 55 65 75X900E DISASSEMBLY 2 13 WIRE DRESSING 2 XBR 65X900E 113 1 3 4 2 ...
Page 121: ...XBR 49 55 65 75X900E DISASSEMBLY 2 21 TAPE 2 XBR 65X900E 121 1 NOTE 2 3 4 TAPE TAPE TAPE TAPE ...
Page 138: ...XBR 49 55 65 75X900E DISASSEMBLY 2 37 LD45 2 XBR 65X900E 138 1 1 2 LD45 ...
Page 153: ...XBR 49 55 65 75X900E DISASSEMBLY 4 13 WIRE DRESSING 4 XBR 75X900E 153 1 3 2 ...
Page 154: ...XBR 49 55 65 75X900E DISASSEMBLY 4 14 WIRE DRESSING 4 XBR 75X900E 154 1 3 2 ...
Page 187: ...XBR 49 55 65 75X900E DISASSEMBLY 5 7 TAPE 5 XBR 49X900E 187 NOTE TAPE TAPE TAPE 1 2 3 4 TAPE ...
Page 188: ...XBR 49 55 65 75X900E DISASSEMBLY 5 8 TAPE 5 XBR 49X900E 188 NOTE 1 2 3 4 TAPE TAPE TAPE TAPE ...
Page 192: ...XBR 49 55 65 75X900E DISASSEMBLY 5 12 WIRE DRESSING 5 XBR 49X900E 192 1 2 3 ...
Page 218: ...XBR 49 55 65 75X900E DISASSEMBLY 5 37 LD30 5 XBR 49X900E 218 1 LD30 2 ...