XBR-49X835D
34
TROUBLE SHOOTING
FLOW
3-2. NO SOUND (AUDIO)
No Sound
Audio
Replace B Board
Finish
3-3. NO SOUND (POWER OFF CHECK)
Power Off Check
From
2-2
Measure the Speaker
impedance by multi-meter
Less than 3Ω ?
Confirm the speaker
harness
Cut or shorted
to the chassis ?
Replace
Speaker
No
Yes
Replace
Speaker Harness
No
Yes
Return to
2-2 or 3-1
Power Off Check
From
3-1
(1) B-PWB
PVDD-GND short ?
Replace
B-PWB
No
Yes
(2) B-PWB
LDO out short ?
(3) B-PWB
Fuse broken ?
No
Yes
No
Yes
Summary of Contents for XBR-49X835D
Page 66: ...XBR 49X835D 66 DISASSEMBLY 1 5 TAPE 1 XBR 49X835D TAPE 3 4 5 TAPE TAPE TAPE 1 2 ...
Page 67: ...XBR 49X835D 67 DISASSEMBLY 1 6 WIRE DRESSING AND TAPE 1 XBR 49X835D 2 TAPE 3 1 TAPE ...
Page 69: ...XBR 49X835D 69 DISASSEMBLY 1 8 TAPE 1 XBR 49X835D 1 TAPE TAPE 2 3 TAPE ...
Page 70: ...XBR 49X835D 70 DISASSEMBLY 1 9 TAPE 1 XBR 49X835D 2 TAPE 3 1 TAPE TAPE ...
Page 71: ...XBR 49X835D 71 DISASSEMBLY 1 10 TAPE AND WIRE DRESSING 1 XBR 49X835D TAPE 1 2 ...
Page 73: ...XBR 49X835D 73 DISASSEMBLY 1 12 TAPE 1 XBR 49X835D 1 2 TAPE TAPE 3 TAPE ...
Page 81: ...XBR 49X835D 81 DISASSEMBLY 1 20 BRACKET SIDE PDT 1 XBR 49X835D 1 2 3 BRACKET SIDE PDT ...
Page 85: ...XBR 49X835D 85 DISASSEMBLY 1 24 SLIDE CLAMP 1 XBR 49X835D SLIDE CLAMP SLIDE CLAMP SLIDE CLAMP ...
Page 88: ...XBR 49X835D 88 DISASSEMBLY 1 27 TAPE AND LCD PANEL 1 XBR 49X835D 1 TAPE 2 LCD PANEL ...
Page 89: ...XBR 49X835D 89 DISASSEMBLY 2 1 BRACKET WIFI ASSY 2 SMART CORE S BRACKET WIFI ASSY 1 3 2 ...
Page 91: ...XBR 49X835D 91 DISASSEMBLY 2 3 COVER TOP 2 SMART CORE S COVER TOP 1 3 2 ...
Page 92: ...XBR 49X835D 92 DISASSEMBLY 2 4 HSC4 S 2 SMART CORE S HSC4 S 1 3 2 NOTE ...
Page 105: ...XBR 49X835D 105 APPENDIX 3 UNIVERSAL Silicon Tuner Information ...