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If it does not rise within 3s, take the following
steps starting 4).
3. Switch the cassette slot-in mode to the Play mode.
As in item 2), if it does not rise within 3s, adjust as
follows.
Envelope (entrance side)
Fig. 7-3-9 Video envelope rising when operation mode
is switched from review to play mode
4, Adjust the S guide roller and perform the linearity
adjustment again.
5. Check above items 2) and 3) to see that the video
envelope rises within 3s. If not, S slider assembly
or the tension lever is damaged. Replace either (or
both) of them.
Note:
* Ifthe rising characteristic is poor in Review mode,
screen noise may occur in synchronous editing
recording. Perform the adjustment carefully.
7) Envelope check
1. Make recordings and play back the tapes (E-180
and E-240) in SP and LP modes and make sure the
playback output envelope meets the specifications
shown in Fig. 7-3-5.
2. In playback the tape (with a E-180), the video
envelope should meet the specification as shown in
Fig. 7-3-10.
Note:
* Check for both modes, SP and LP. Also check for
AFM envelope when using a Hi-Fi model.
==
* BJA 2 0.55
* B=
120mvV
Fig. 7-3-10 Envelope output and output difference
3. If the performance does not meet both specifica-
tions above | and 2 above, replace the upper
cylinder assembly.
2-42
4. Set the VTR to Rec mode (LP) with the E-180 tape
loaded (at the beginning part) and check operation
of the synchronous editing recording.
5. If picture noises are observed at the starting
position of the editing, perform "6) Check for
transitional operation from Review to Play, slot-in
to play".
8) Tape wrinkle check
1. Playback the E-240 tape in the normal Play mode,
CUE mode, Review mode and the frame advance
mode, and check each guide for wrinkle.
2. If excessive tape wrinkle is observed at the mode
shown below, perform the associated adjustments
also shown below. (The parts described in ( ) may
need to replace.)
a. Playback mode
Tape wrinkle at the S, T-guide rollers section
Item 3) Linearity adjustment
(Slider assembly)
Tape wrinkle at No. 8 guide flange
Item 1) ACE head assembly coarse adjustment
(Pinch roller)
Tape wrinkle at lower flange of No. | guide
Item 6) Check for transitional operations from
Review to Play, and Slot-In to Play
(Tension lever)
b. Review mode
Tape wrinkle at No. 8 guide
Item 1) ACE head assembly coarse adjustment
(Pinch lever, No. 9 guide lever,
capstan motor)
Tape wrinkle at the guide rollers
Guide roller adjustment (Slider assembly)
c.
Frame advance mode
Tape wrinkle at No. 8 guide
Item 3) Linearity adjustment
(Pinch lever, capstan motor)
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