20
TROUBLE SHOOTING GUIDE
E-3. LUMINANCE IN THE PALYBACK MODE
Is the RF signal obtained
from pin13 of IC401?
NO
TO PREAMP IN THE
PLAYBACK MODE
YES
Is the RF signal from pin7
of IC301?
NO
Check Q401 and adjacent
YES
Is ON/OFF 5V supplied to
pin36 and 47 of IC301?
NO
Check the ON/OFF 5V
YES
Is the luminance signal
from pin15 fed to pin20
of IC301 through Q302?
NO
Check Q302 and adjacent
Circuit
YES
Is the luminance signal
from 26 fed to pin38 of
IC301?
NO
Check IC301
YES
To output buffer circuit
( Check Q604 and
adjacent circuit )
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 ...