6
GENERAL ADJUSTMENT
SERVO CIRCUIT
ADJUSTMENT PROCEDURE
1. Preparation
Playback the test tape (DP-2).
Set the oscilloscope to the CHOP mode. Connect CH1 to the V.SW PULSE (TJ591) and CH2 to the VIDEO OUT
(TJ391) and trigger the scope with the signal from CH1.
2. Adjustment
Adjust R591 to the positive rising edge of V.SW PULSE at 6.5H ±0.5H from the V-SYNC.
3. Adjustment Inspection Standard
6.5H ± 0.5H
4. REMARKS
ITEM
ADJUSTMENT
PARTS
CHECK POINT
TEST EQUIPMENTS
MODE
TEST TAPE
Playback
Phase
R591
TJ591(V.SW)
TJ391(VIDEO OUT)
Oscilloscope
Play
DP-2
LOCATION OF ADJUSTMENT PARTS
OBSERVATION WAVEFORM
MOD
A/V JACK
TJ391
(VIDEO OUT)
PRE-AMP
SMPS
TJ591
(V. SW)
R591
FRONT
Summary of Contents for DV-S123W Series
Page 33: ...32 PRINTED CIRCUIT BOARD 1 PCB MAIN ...
Page 34: ...33 PRINTED CIRCUIT BOARD 2 PCB POWER SMPS ...
Page 35: ...34 CIRCUIT DIAGRAM 1 CONNECTION DIAGRAM DV S103W S103A S103N ...
Page 36: ...35 CIRCUIT DIAGRAM 2 POWER CIRCUIT DV S103W ...
Page 37: ...36 CIRCUIT DIAGRAM 3 SERVO SYSCON CIRCUIT DV S103W ...
Page 38: ...37 CIRCUIT DIAGRAM 4 AV INPUT OUTPUT CIRCUIT DV S103W ...
Page 39: ...38 CIRCUIT DIAGRAM 5 VIDEO AUDIO CIRCUIT DV S103W S103A S103N S103S ...
Page 40: ...39 EXPLODING VIEWS PARTS LIST 1 PACKING AS ...
Page 41: ...40 EXPLODING VIEWS PARTS LIST 2 SET TOTAL ASSEMBLY ...
Page 42: ...41 EXPLODING VIEWS PARTS LIST 3 FRONT PANEL ASSEMBLY DV S103W FRONT PANEL ASSEMBLY ...
Page 43: ...42 EXPLODING VIEWS PARTS LIST DV S123W FRONT PANEL ASSEMBLY ...