62
DV-F727, DV-F07
Oscilloscope
CH1
CH2
(X)
(Y)
VC21
DVDM ASSY
VOLB ASSY
1
2
SIDE A
IC21
IC801
IC101
IC601
CN120
CN703
CN1030
CN110
CN252
Pin 5
Adjustment Points (PCB Part)
Adjustment Items
6.1 ADJUSTMENT ITEMS AND LOCATION
6. ADJUSTMENT
[Electrical Part]
Note : When the Traverse mechanism adjustment is not properly adjusted, jitter, error rate and play ability are defective.
The noise may come out by the case.
Master Clock Adjustment
1
Disc-select Rotation Adjustment
2
6.2 JIGS AND MEASURING INSTRUMENTS
Digital multi meter
CD TEST DISC
(YEDS-7)
Precise screwdriver
V+B
V-B
0.01
0.01
+
+
–
+
33/16
22k
470k
470
INPUT
from KN601
(VOLB ASSY)
33/16
47
SW
0.1
0.1
CQM or CFTX
OUTPUT
Jig (Peak hold circuit)
M5238(2/2)
M5238(1/2)
(Peak hold OUT)
+
–
Test mode remote
control unit
(GGF1067)
DC power supply
V
A
VR601
KN601
Frequency counter
Display digit
≥
8-digit
Screwdriver
(small)