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XBR-49X835D
29
TROUBLE SHOOTING
FLOW
2-2. LED BLINKING 3X (DC ALERT AND AUDIO ERROR)
AUDIO ERROR
DC_ALERT
3-time blinking
Check
+5.0V_VBUS at “
C431
”
4.959V<Voltage<5.285V?
Audio Error
OK
NG
IC402,etc
(B* Board)
Power Off
Check
Measure the Speaker
impedance by multi-meter
Less than 3Ω ?
Replace
Speaker
No
Yes
(1) B-PWB
VDD-GND short ?
Replace*
B-PWB
No
Yes
(2) B-PWB
+3.3V_Audio short ?
(3) B-PWB
Fuse broken ?
No
Yes
No
Yes
LED 3x blinking
(Audio Error)
(4) 12.5V check
12.5V is supplied to
B-PWB for a moment
before LED 3x blinking?
Replace
B-K Harness
OK ?
Replace
G-PWB*
OK ?
No
Yes
No
Yes
Finish
Power On
Check
Speaker Harness
*For BFM chassis: if with AC adapter,
G-PWB
refer to LD board;
*For BM2+DPA chassis: “
Replace B-PWB
” include BM2 and DPA;
For this model
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 ...