Read Sharp LC-26GA5E (serv.man10) Service Manual online
22
LC-26GA5E
LC-32GA5E
LC-32GA5E
LC-26GA5E
LC-32GA5E
LC-32GA5E
1. No video output (1 / 3)
<Signals>
No video output (1)
External input in trouble <EXT-1>
External input R,G,B in trouble <EXT-1>
Is Ext 1 selected in the input switching
NO
Select Ext 1 and the input signal
Is there R,G and B at pins 5 , 2 and 12 a
t
NO
Check SC 1451 connector and
menu screen ?
in the input switching menu screen
IC1403 as specified ?
peripherical components.
YES
YES
Is there video signal input at pin 58
NO
Check SC1451 and peripherical
Is there R, G and B signal input at pins
NO
Check IC 1403, Q
1412 and
of IC 1001 ?
components
67, 68 and 69 of IC 1001 as specified ?
peripherical components
YES
YES
<Signals>
No video output (2)
External input in trouble <EXT-2>
External input in trouble <EXT-2 S-VIDEO>
Is Ext 2 selected in the input switching
NO
Select Ext 2 and the input signal
Is Ext 2 S-VIDEO selected in the input
NO
Select Ext
2 S-VIDEO and the input signal
menu screen ?
in the input switching menu screen
switching menu screen ?
in the input switching menu screen
YES
YES
NO
There are video
on screen ?
Is there video signal input at pin 64
NO
Check SC1452 and peripherical
YES
of IC 1001 ?
components
Is there chroma signal input at pin 66
NO
Check SC1452 and peripherical
YES
of IC 1001 ?
components
YES
<Signals>
No video output (3)
External input in trouble <EXT-3>
External input in trouble <EXT-3 S-VIDEO>
Is Ext 3 selected in the input switching
NO
Select Ext 3 and the input signal
Is Ext 3 S-VIDEO selected in the input
NO
Select Ext
3 S-VIDEO and the input signal
menu screen ?
in the input switching menu screen
switching menu screen ?
in the input switching menu screen
YES
YES
NO
There are video
on screen ?
Is there video signal input at pin 60
NO
Check J 401and peripherical
YES
of IC 1001 ?
components
Is there chroma signal input at pin 63
NO
Check J 403and peripherical
YES
of IC 1001 ?
components
YES
5
5
5
5
5
5
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