7-19
DNW-A100/A50/A45
DNW-A100P/A50P/A45P
No waveform lacking exists.
Spec. 7 :
A
B
A
C
A
B
C
D
E
F
G
H
S100
RV100(Tracking VR)
J
K
L
M
N
P
R
1
2
<SS-63 board, side A>
A
B
C
D
E
<Fig. 1>
B
A
C
A
Spec. 6 :
x
100
>
70% (Drum entrance side)
x
100
>
70% (Drum exit side)
7-1-3. Video Tracking Check and Adjustment
Video Tracking Check (PLAY)
.
Abnormal waveform (For example)
.
Alignment tape : SR2-1/SR2-1P (00:00 to 15:00)
(Tracking VR : Not effective)
.
Alignment tape : SR2-1/SR2-1P (00:00 to 15:00)
(Tracking VR : Not effective)
Video Tracking Check (F. FWD, REW)
If the output waveform is extremely abnormal
condition as shown in Fig.1 after replacing the
upper drum assembly, perform the upper drum
replacement again.
.
Upper drum assembly replacement
(Refer to Section 5-2.)
10. F. FWD and REW Mode
(1) Press the PLAY button and play back the
SR2-1/P (00:00 to 15:00).
(2) Put the unit into the F. FWD mode and check
that the RF waveform satisfies specifications
6 and 7.
(3) Put the unit into the REW mode and check
that the RF waveform satisfies specifications
6 and 7.
If specifications 6 and 7 are not satisfied,
perform the adjustment (at the Tape Ap-
proaching Side or Tape Leaving Side) in
steps 12 and later.
