Read Sharp LC-32GA5E (serv.man9) Service Manual online
24
LC-26GA5E
LC-32GA5E
LC-32GA5E
LC-26GA5E
LC-32GA5E
LC-32GA5E
3. No video output (3 / 3)
<Signals>
No video output (4)
External input in trouble <EXT 4>
External input in trouble <EXT 4>
Components SD
Components HD
Select EXT 4 and the input signal
NO
Is EXT 4 selected in the input
Is EXT 4 selected in the input
No
Select EXT 4 and the input s
ignal
in the input switching menu screen
switching menu screen ?
switching menu screen ?
in the input switching menu screen
YES
YES
Select SD in main meu
ĺ
AV setup
ĺ
NO
Is SD select in Main menu?
Is HD select in Main menu?
No
Select HD in main menu
ĺ
AV setup
ĺ
Ext 4
ĺ
SD
Ext 4
ĺ
HD
YES
YES
Check Components unit PWB and
NO
Is there Y, Pr and Pb signal input at pins
Is there Y, Pr and Pb signal input at pins
No
Check C
omponents unit PWB and
peripherical components
13, 1 and 3 of IC 1403 as specified ?
13, 6 and 3 of IC 1801 as specified ?
peripherical components
YES
YES
Check IC 1403, Q 1412 and
NO
Is there Y, Pr and Pb signal input at pins
Is there Y, Pr and Pb signal output at pins
No
Check IC 18
01, IC 1802 and
peripherical components
67, 68 and 69 of IC 1001 as specified ?
12 , 4 and 7 of IC1801 as specified ?
peripherical components
YES
Is there Y, Pr and Pb signal output at pins
No
Check IC 2203 , IC 1803 and
12 , 9 and 7 of IC2203 as specified ?
peripherical components
Is there Y, Pr and Pb signal input at pins
No
Check IC 2201 and
37, 43 and 50 of IC2201 as specified ?
peripherical components
<Signals>
No video output (3)
External input in trouble <PC INPUT>
Is PC INPUT selected in the input
NO
Select PC INPUT and the input signal
switching menu screen ?
in the input switching menu screen
YES
YES
Check SC 2801 and peripherical
NO
Is there synchro signal input at
There are video on screen ?
components
pins 1 and 13 of IC 2205
NO
YES
Check IC 2205 , IC1803 and
NO
Is there synchro signal output at
Is there R,G,B signal input at pins 6.
NO
Check SC 2801 and periphe
rical
peripherical components
pins 14 and 15 of IC 2205?
10 and 13 of IC 2203 ?
components
YES
YES
Check IC 2206 and peripherical
NO
Is there synchro signal output at
components
pins 6 and 11 of IC 2206?
Is there R,G,B signal output at pins 7
N
O
Check IC 2203 , IC1803 and
YES
12 and 9 of IC 2203 ?
peripherical components
Check IC 2201 and peripherical
NO
Is there synchro signal input at
YES
components
pins 64 and 65 of IC 2201 ?
Is there R,G,B signal input at pins 37
NO
Check IC 2201 and peripherical
43 and 50 of IC 2201 ?
components
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