23
TROUBLE SHOOTING GUIDE
E-6.
LUMINANCE SIGNAL IN THE RECORD MODE
Is ON/OFFF 5V supplied
to pin36 and 47 of IC301?
NO
Check the ON/OFF 5V
YES
Is the obtained from pin34
of IC301?
NO
TO EE MODE
YES
Is the signal from pin34 of
IC301 fed to pin25 of
IC301?
NO
Is C319 correct?
NO
Change damaged
Compoents
YES
YES
Check IC301
Is the luminance signal
from pin25 fed to pin26 of
IC301?
NO
Are Q302, C312, C313,
C342, R307, R308, R309
and R310 correct?
NO
Changed damaged
Components
YES
YES
Check IC301
Is the luminance signal
from pin26 fed to pin18
of IC301?
NO
Check IC301
YES
Is the modulated lumi-
nance
signal from pin18 of IC301
fed to pin9 of IC401?
NO
Check R305 and C405
YES
To preamp circuit in the rec
mode
Содержание DV-S123W Series
Страница 33: ...32 PRINTED CIRCUIT BOARD 1 PCB MAIN ...
Страница 34: ...33 PRINTED CIRCUIT BOARD 2 PCB POWER SMPS ...
Страница 35: ...34 CIRCUIT DIAGRAM 1 CONNECTION DIAGRAM DV S103W S103A S103N ...
Страница 36: ...35 CIRCUIT DIAGRAM 2 POWER CIRCUIT DV S103W ...
Страница 37: ...36 CIRCUIT DIAGRAM 3 SERVO SYSCON CIRCUIT DV S103W ...
Страница 38: ...37 CIRCUIT DIAGRAM 4 AV INPUT OUTPUT CIRCUIT DV S103W ...
Страница 39: ...38 CIRCUIT DIAGRAM 5 VIDEO AUDIO CIRCUIT DV S103W S103A S103N S103S ...
Страница 40: ...39 EXPLODING VIEWS PARTS LIST 1 PACKING AS ...
Страница 41: ...40 EXPLODING VIEWS PARTS LIST 2 SET TOTAL ASSEMBLY ...
Страница 42: ...41 EXPLODING VIEWS PARTS LIST 3 FRONT PANEL ASSEMBLY DV S103W FRONT PANEL ASSEMBLY ...
Страница 43: ...42 EXPLODING VIEWS PARTS LIST DV S123W FRONT PANEL ASSEMBLY ...