XBR-49/55/65/75X900E
TROUBLE SHOOTING
FLOW
3-2. NO SOUND (POWER OFF CHECK)
3-3. NO SOUND (POWER ON CHECK)
33
Power Off Check
From 2.2 LED BLINKING 3X
(AUDIO ERROR)
Measure the Speaker
impedance by multi-meter.
NG value of
right table?
Confirm the speaker
harness
Cut or shorted
to the chassis ?
Replace Speaker
No
Yes
Replace Speaker Harness
No
Yes
Return to
2.2 LED BLINKING 3X
(AUDIO ERROR)
or NO SOUND
Power Off Check
From NO SOUND
(1) B board
PVDD-GND short ?
Replace B board
No
Yes
(2) B board
LDO out short ?
(3) B board
Fuse broken ?
No
Yes
No
Yes
Speaker Impedance
Rated Impedance
NG Value
KP woofer
4ohm
less than 3.2ohm
KP front
6ohm
less than 4.8ohm
KS/KH
8ohm
less than 6.4ohm
Power On Check
From 2.2 LED BLINKING 3X
(AUDIO ERROR)
No
(4) PVDD check
PVDD is supplied to
B board for a moment
before LED 3x blinking ?
No
Yes
Replace Power-Supply *
OK ?
No
Yes
Return to 2.2 LED BLINKING 3X
(AUDIO ERROR)
Finish
*Power-Supply is
AC Adaptor model : JK board & AC Adaptor
built-in power supply model : G board
PVDD (POWER_AU) voltage is
240W AC Adaptor model : 24.0V
200W AC Adaptor model : 19.5V
Built-in power supply model : 12.5V
Measurement point is same as (1) PVDD-GND
short check.
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 ...