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Verfügbare Sprachen
Verfügbare Sprachen
FLOW CHART NO.18 E-E MODE TROUBLESHOOTING
FLOW CHART NO.19 E-E MODE TROUBLESHOOTING(2)
(Tuner input mode.)
(Ext. input mode.)
:
:
Check between pin (27) of IC401
Is there a signal at pin (29) of 1IC401?
Is there a signal at pin (31) of (C401?
ee
signal at pin (2) oF
and the way up thru to pin (2) of
Ss
NO
YES
Is there any signal (OSD) at pin(11)
[NO
of 1C2401 ?
YES
1C2401.
YES
NO
YE
ts there a signal at Ext. input
NO
ee!
oe
YES
Check between Ext. input terminal
Is there "H" level (about 5.0V)
NO
signal at pin (8) of IC2401 ?
Replace 1C2401 and FL2401.
YES
Check between pin (8) of 12401 and the way up thru to pin (67) of IC701.
Is there a signal at pin (26) of the
tuner pack (TU1501) ?
Check between pin (26) of the
tuner pack (TU1501) and the way
up thru to pin (29) of IC401.
and the way up thru to pin (31) of
1€401.
Check tuner pack (TU 1501) and
parts around it.
Check Ext. input terminal and
parts around it.
Is there a signal at pin (27) of 1C401?
YES
NO
Is the supply voltage of 5V.
ino
fed to pins (26) and (54) of
Check TU PCS5V lines.
1€401?
YES
2
Check between pin (27) of
C401 and all the way up
thru to video output
terminal.
Check between pins (14)
Are there the serial data
and (15) of IC401 and the
and clock at pins (14) and
(15) of 1C401?
YES
Is there signal at pins (39)
NO
and (38) of 10401?
Repeat
way up thru to pins (2) and
(3) of 1C701.
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