29
SEC 3.
(
TROUBLE SHOOTING
)
@NL
No power
J]%F#P
RV! #PN+
A.0 " &`
Check SB_3.3V
at 1 pin of CN201 on the
Main board Between
3.14~3.45V
[<;TP_a
Harness issue
C9NLF
Change PSU
C9NLF$%F&
`P[<;T
Replace the harness
between PSU and Main
board
C9%F
Change Main board
NG
OK
NG
OMD>/
Symptom improvement
8:NLTS*^
,)=(4E
Long AC off
(> 15 min.)
and then Power On
Z(U'H53QXWGY6
Enter Service Mode and check
Self diagnosis history
NG
OK
QXNLF$%F&`
P[<;TA.I2
Check the harness PSU to
M/B connection
NG
OK
\?[<;T
Fix the harness
connection
!
7!DWGY6-
IF MAIN_POWER > 0 or DC_ALERT1 > 0
!DWGY6-
IF AUDIO_PROT > 0
!DWGY6-
BACKLIGHT_ERR > 0
C9%F
Change Main board
C9KB1
Change Panel
C9%F
Change Main board
OK
No
No
Yes
Yes
Yes
3-1.
3-1. NO POWER
KDL-42/47R500A(CH)
Содержание KDL-50R550A
Страница 2: ...SERVICE MANUAL LCD Digital Color TV 9 888 526 01 RB1FK CHASSIS Segment BL ...
Страница 38: ...KDL 50R550A 556A 60R520A 550A 70R550A CH 38 SEC 4 DIAGRAMS 4 1 BLOCK DIAGRAM ...
Страница 39: ...KDL 50R550A 556A 60R520A 550A 70R550A CH 39 DIAGRAMS 4 2 CONNECTOR DIAGRAM 4 2 1 KDL 50R550A 556A ...
Страница 40: ...KDL 50R550A 556A 60R520A 550A 70R550A CH 40 4 2 CONNECTOR DIAGRAM 4 2 2 KDL 60R520A 550A 70R550A DIAGRAMS ...
Страница 44: ...44 KDL 50R550A 556A 60R520A 550A 70R550A CH 2 DISASSEMBLY THE STAND APPENDIX 1 3 REMOVE THE STAND ...
Страница 45: ...45 KDL 50R550A 556A 60R520A 550A 70R550A CH 4 UNLOCK SCREWS 50 60 70 APPENDIX 1 ...
Страница 49: ...49 KDL 50R550A 556A 60R520A 550A 70R550A CH 1 KDL 50R550A 556A HOOK POSITION APPENDIX 1 ...
Страница 50: ...50 KDL 50R550A 556A 60R520A 550A 70R550A CH 1 KDL 50R550A 556A 4 Rear Cover APPENDIX 1 HOOK POSITION ...
Страница 51: ...51 KDL 50R550A 556A 60R520A 550A 70R550A CH 2 KDL 60R520A 550A APPENDIX 1 HOOK POSITION ...
Страница 52: ...52 KDL 50R550A 556A 60R520A 550A 70R550A CH 8 8 8 HOOK POSITION 2 KDL 60R520A 550A 4 Rear Cover APPENDIX 1 ...
Страница 53: ...53 KDL 50R550A 556A 60R520A 550A 70R550A CH 3 KDL 70R550A APPENDIX 1 HOOK POSITION ...
Страница 54: ...54 KDL 50R550A 556A 60R520A 550A 70R550A CH 8 8 8 HOOK POSITION 3 KDL 70R550A 4 Rear Cover APPENDIX 1 ...