XBR-49X835D
22
TROUBLE SHOOTING
FLOW
1-2. NO POWER U-COM FAILURE
TV Business Division
START
Check DC_OFF_DET
C504
Voltage.
Is the voltage >3.0V?
Check OPWRSB
R441
Voltage.
Is the voltage 0V?
Check DC_OFF_DET
IC400
no
yes
yes
Check P_ON_LNB
P-on ucom #pin15
Is the voltage >3.0V?
Change IC401
no
yes
Check MAIN_VCC
R437
Voltage.
Is the voltage >1.6V?
Check +12V_MAIN Line
(G board, LD or IC409).
no
yes
Check P_ON_VBUS
P-on ucom #pin11
is >3.0V?
Change IC401
no
yes
yes
Change IC401
no
Check P_ON_#1
P-on ucom #pin13
is >3.0V?
Check PGOOD_1
R434
Voltage.
Is the voltage >3.0V?
1-3 No POWER - DDCON/LDO
Check 1.0V DDCON (IC604)
And (if it is mounted)
12V DDCON (IC409).
no
Continue next page…
Check VDD
C419
Voltage.
Is the voltage >3.0V?
Check +3.3V_STBY
C413, CN400 #24pin
no
Check POWER_ON
P-on ucom #pin19
Is the voltage >3.0V?
Try AC Off and On after few minutes.
If #pin19 keep Low, change IC401.
If #pin19 goes High few seconds and downs to Low,
Check +12V_MAIN Line (G board, LD or IC409).
no
yes
SOC
Muffin 2
problem
no
yes
Содержание XBR-49X835D
Страница 65: ...XBR 49X835D 65 DISASSEMBLY 1 4 BRACKET DC JACK PDT AND TAPE 1 XBR 49X835D BRACKET DC JACK PDT 3 2 1 TAPE ...
Страница 66: ...XBR 49X835D 66 DISASSEMBLY 1 5 TAPE 1 XBR 49X835D TAPE 3 4 5 TAPE TAPE TAPE 1 2 ...
Страница 67: ...XBR 49X835D 67 DISASSEMBLY 1 6 WIRE DRESSING AND TAPE 1 XBR 49X835D 2 TAPE 3 1 TAPE ...
Страница 69: ...XBR 49X835D 69 DISASSEMBLY 1 8 TAPE 1 XBR 49X835D 1 TAPE TAPE 2 3 TAPE ...
Страница 70: ...XBR 49X835D 70 DISASSEMBLY 1 9 TAPE 1 XBR 49X835D 2 TAPE 3 1 TAPE TAPE ...
Страница 71: ...XBR 49X835D 71 DISASSEMBLY 1 10 TAPE AND WIRE DRESSING 1 XBR 49X835D TAPE 1 2 ...
Страница 73: ...XBR 49X835D 73 DISASSEMBLY 1 12 TAPE 1 XBR 49X835D 1 2 TAPE TAPE 3 TAPE ...
Страница 81: ...XBR 49X835D 81 DISASSEMBLY 1 20 BRACKET SIDE PDT 1 XBR 49X835D 1 2 3 BRACKET SIDE PDT ...
Страница 83: ...XBR 49X835D 83 DISASSEMBLY 1 22 BFM 1 XBR 49X835D 1 BFM 7 screws SCREW PSW M3X6 P N 4 472 518 11 2 3 ...
Страница 85: ...XBR 49X835D 85 DISASSEMBLY 1 24 SLIDE CLAMP 1 XBR 49X835D SLIDE CLAMP SLIDE CLAMP SLIDE CLAMP ...
Страница 88: ...XBR 49X835D 88 DISASSEMBLY 1 27 TAPE AND LCD PANEL 1 XBR 49X835D 1 TAPE 2 LCD PANEL ...
Страница 89: ...XBR 49X835D 89 DISASSEMBLY 2 1 BRACKET WIFI ASSY 2 SMART CORE S BRACKET WIFI ASSY 1 3 2 ...
Страница 91: ...XBR 49X835D 91 DISASSEMBLY 2 3 COVER TOP 2 SMART CORE S COVER TOP 1 3 2 ...
Страница 92: ...XBR 49X835D 92 DISASSEMBLY 2 4 HSC4 S 2 SMART CORE S HSC4 S 1 3 2 NOTE ...
Страница 93: ...XBR 49X835D 93 DISASSEMBLY 2 5 PANEL ORNAMENT 2 SMART CORE S 2 3 1 PANEL ORNAMENT Sequence Information ...
Страница 94: ...XBR 49X835D 94 DISASSEMBLY 2 6 GUIDE LIGHT AND CASE BTM S 2 SMART CORE S 1 CASE BTM S 4 GUIDE LIGHT 3 2 ...
Страница 101: ...XBR 49X835D 101 END 9 888 806 01 English 2016IL08 Data Made in Japan 2016 9 Sony Visual Products Inc ...
Страница 105: ...XBR 49X835D 105 APPENDIX 3 UNIVERSAL Silicon Tuner Information ...
Страница 106: ...XBR 49X835D 106 APPENDIX 3 UNIVERSAL Silicon Tuner Information How to Assembly Solder Less Tuner ...