DAEWOO ELECTRONICS DV-F562 Series, Руководство по обслуживанию

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30
7
Is envelope output
ICA 01 pin?
Is signal input to
IC301 pin?
Is signal output
from IC301 pin
Is signal input
to IC301 pin?
Is color signal input
to IC301 pin?
Is composite video signal
output from IC301 ?
Check OSD circuit
33
2
3
21
28
Is on/off 5V supplied to
ICA 01 , pin?
Is sw pulse input to
ICA 01 , pin?
Check QA01,
QA02, QA03
Check IC301
vcc , pin
Check power
circuit
Check IC601
pin
Change IC301
Check IC301
pin EE(L)/PB(H)
Check Q302, 303
Check QA04, QA05
Is C.signal input
to IC301 pin?
Is color signal input
to IC301 pin?
23
Check X402 and
adjacent circuit.
Change IC301
1 2
4 5
Check power
circuit
Check IC601
, pin
Claen head or
change head
17 18
29 24
4
29
14
NO
YES
YES
YES
YES
YES
YES
YES
NO
NO
YES
NO
NO
YES
YES
NO
NO
YES
NO
NO NO
NO
YES
C. PB VIDEO SIGNAL N.G
NO
11
29
Is 5V supplied to ICS01 and pins?
Check oscillation of ICS01 and pins.
Check serial data (ICS01 pins)
Change ICS01 and check OSD circuit.
Check ON/OFF +5V
Check XS01 (17.7MHz)
Check IC601.
3
16
4 5
YES
YES
NO
NO
NO
B . OSD Character N.G
20 7
YES
17