Sony DCR-TRV725E, Руководство по обслуживанию

Страница: 243 / 249

— 39 —
5-4-5-2. Rise-up Check (Refer to Fig. 5-12)
1) Playback the tracking alignment tape WR5-1NP (NTSC), WR5-
1CP (PAL)(Ref. No. J-6).
2) Turn OFF the Track Shift mode.
3) Eject the cassette tape once. Then insert the cassette tape for
loading again.
4) Confirm that the RF waveform rises up to the flat envelope
within 3 seconds after the machine enters the PLAY mode.
Check also that the tape slack does not occur at around the
pinch roller.
5) Run the tape in the CUE/REV and the FF/REW mode. Then
playback the tracking alignment tape and confirm the RF
waveform rises up to the flat envelope within 3 seconds after
the machine enters the PLAY mode. Check also that the tape
slack does not occur at around the pinch roller.
6) Repeat the above steps 3) to 5) once again for re-check.
5-4-5-3. Tape Run Check (Refer to Fig. 5-13)
1) Playback the thin video tape such as P6-120MP (NTSC), P6-
90MP (PAL). Confirm that tape does not float and the major
tape curl of more than 0.3 mm does not occur at the top flange
of the No. 3 guide (TG3), at the top flange of the No. 6 guide
(TG6) and at both the top and bottom flanges of the No. 7
guide (TG7).
2) Confirm that tape does not float and the major tape curl of
more than 0.3 mm does not occur at the flanges of the respective
guide when the FF button is pressed during PLAY mode to
enter the CUE mode and when the REW button is pressed
during PLAY mode to enter the REV mode.
Fig. 5-12.
Fig. 5-13.
Tape slack
Capstan
No.6 guide
(TG6)
No.7 guide
(TG7)
Capstan
Drum
Pinch roller
No.7 guide
(TG7)
No.6 guide
(TG6) No.3 guide
(TG3)
No.1 guide
(TG1)