Sony CCD-M8, Руководство по обслуживанию

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3-4-3. AC Clip Adjustment (YM-2 Board)
Mode: Recording
Subject: All white pattern
Adjustment Procedure:
I )
Record the all white pattern.
2 ) Play back the recorded tape on playback equipment
( EV-A300, EV-S700, etc .).
3 ) Confirm that there is n o slant in the pedestal portion
of the output waveform on playback equipment
VIDEO OUT, and that the shape of the sync signal is
normal. (Fig. 3 - 1 2 )
4) I f not , turn RV504 on the YM-2 board and repeat
steps
I )
-
3 ) .
5 ) Check that there is no white smear or black smear on
the m onitor picture.
Correctly shaped sync signal
Fig.
3- 12
A C clip adjustment
3-4-4. R EC Y Recording Current Adjustment
( R P-29 Board)
Mode: Recording
Tape: MP tape
Connection: Connect the following four points with
j umpers.
•
YM-2 board pin
@
( REC Y IN) and pin
@
( REG
GND)
•
RP-29 board pin
1,D
( REC ATF) and pin
@
( REG
GND)
•
RP-29 board pin
,'2)
( REC AFM) and pin
1])
( REG GND)
•
RP-29 board pin
0)
( REC C) and pin
@
( REG
GND)
Oscilloscope:
RP-29 board pin
d_ �
Adjustment Procedure: Turn RVS
I
0 on the RP-29 board
and adjust to 240 ±5 mVp-p . (Fig. 3- 1 3 )
---r--
240 ±5 m Vp-p
Fig.
3- 13
REC
Y
recording current adjustment
-7 5-