Sony DSR-2000A, Руководство по обслуживанию

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8-15
DSR-2000A/2000AP
8-7. RF Waveform Raiseup Check
Basic knowledge
To perform tracking adjustment using the alignment tape (XH2-1AST), refer to
the following items.
. For the procedure to enter the maintenance menu, refer to Section 5-2-2.
. For the procedure to exit the maintenance menu, refer to Section 5-2-3.
.
For the operating procedure of the maintenance menu during the tracking adjust-
ment, refer to Section 8-1.
Tools
. Alignment tape, XH2-1AST : 8-967-999-02
.
Tape path adjustment board, DJ-461 : J-6444-610-B
.
Dual trace oscilloscope
Check procedure
1. Connect the oscilloscope as follows :
CH-1 :
TP2 / DJ-461
CH-2 : TP3 / DJ-461
TRIG : CH-2
2. Insert the alignment tape XH2-1AST on the VTR.
3. Confirm that the RF waveform raises up within two
seconds at the specified amplitude when the mode is
changed from EJECT
→
PLAY
→
EJECT
→
PLAY
repeatedly.
4. Confirm that the RF waveform raises up within two
seconds at the specified amplitude when the mode is
changed from FF
→
PLAY and from REW
→
PLAY.
4/5 Div
max.
min.
3 Div
Specification : max. _ min. < 4/5 Div