Sanyo DP32640 - 31.5" Diagonal LCD HDTV 720p, Руководство по обслуживанию

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Repair Flow Chart:Trouble Condition
Green Power LED and LCD backlights are ON,but no video or OSD.
LCD backlights are ON,
but TV has NO VIDEO or OSD.
On analog board:
Is the 12V supplied from “K17 Pin 8/9”?
On digital board:
Is power 12V supllied from “K5A Pin2”?
Replace“Power board” and
“Wire harness”.
On digital board:
Is power 12V to TCON supplied
from“K5LV Pin29/33/37” ?
Analog board is not working.
Replace “analog board”.
Is LVDS clock outputed?
(see TABLE*1.0)
Confirm LVDS cable connection
and check for video OSD again.
T.Cnt.Board or LCD panel is not working.
1st:Replace“T.Cnt.Board&LVDS Cable”.
If T.Cnt.board&LVDS cable do not correct
problem,then 2nd:Replace“LCD Panel”.
Digital board is not working.
Replace “digital board”.
Digit board is not working.
Replace “digital board”.
If the clock output is OK,the digital board is
normally OK,but can not be 100% sure.If
the T Cont Board &LVDS do not the correct
problem,please try the digital before ordering
a panel.
No:0V
Yes
No:0V
Yes:12V
No:0V
No:0V or 1.1Vconstant
Yes
Yes:12V
Repair Flow Chart:Trouble Condition
Power LED turns OFF within 10 sec of power ON.
Power LED turns OFF within
10 sec of power ON.
On analog board:
Is 3.3V supplied to“K17 Pin1”during
LED ON time?
On digital board:
Is 3.3V supllied to “K5A Pin29”?
Unplug cable from digital board
to T.Cnt.board is symptom
changed?
Analog board is not working.
Replace “analog board”.
On power board:
Is the 12V supplied from “CN2 Pin8/9 ”
during LED ON time?
Digital board is not working.
Analog board may also not be working.
Replace “digital board and analog board”.
T Con board is not working.
Digital board may also not be working.
Replace “T Con board&digital board”.
Power board is not working.
Replace “Power board.”
No:0V
Yes:3.3V
No:0V
Yes
No
Digital board is not working.
Replace “digital board”.
Yes:3.3V
No:0V
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