XBR-55/65X930E, 75X940E
TROUBLE SHOOTING
FLOW
3-2. NO SOUND (POWER OFF CHECK)
3-3. NO SOUND (POWER ON CHECK)
33
Power Off Check
From 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
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 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 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-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 ...