Checking After Adjustment :++++++++++S+2++8+ 5-30E - Sony SLV-E105 Service Manual

4-3-5. CHECKING AFTER ADJUSTMENT
1)
2)
3)
4)
5)
6)
7)
Play the alignment tape (NTSC : MH-1, PAL: MH-2)and
check that the envelope waveform is activated
immediately and that there are no fluctuations in the
envelope waveform or the audio output waveform.
Load acassette tape (NTSC: T-120, PAL: E-180) and use
it to record and replay. Check that the envelope
waveform is activated immediately and that there are
no fluctuations in the envelope waveform or the audio
output waveform. (When recording on the tape, input
kHz to the audio input terminal. Use a scratch-free
cassette tape (NTSC: T-120, PAL: E-180).) Check that at
the tracking centre, the front half down and back half
down are not more than 20% of the value at the
point where the envelope waveform amplitude is at
its maximum.
Check that the envelope waveform is activated
immediately when you switch from PLAY to R-
SEARCH or from R-SEARCH to PLAY. Check that
there is no slack in the tape next to the pinch roller.
Check that the envelope waveform is activated
immediately when you switch to PLAY from FF, REW,
F-SEARCH, R-SEARCH or STOP mode. Check that there
is no slack in the tape next to the pinch roller.
Check that the tape is not curling or riding up on the
upper or lower flanges of the tape guides in PLAY, FF,
REW, F-SEARCH or R-SEARCH modes.
Check that in PLAY mode, the tape runs as shown in
Fig.4-3-7,
Load a tape (NTSC: T-160, PAL: E-240) and play it back.
carry Out the checks described in steps 3) to 5) above.
St id
ape guice
Audio R/P head assembly
(ACE head)
Weisad
S guide
Cylinder
suide p
roller
. (drum)
T guide roller
BT post
Full erase Pinch roller a
Capstan shaft
5-30 E
T tape guide Loading guide