JVC RC-636L - Page 10

RC-636L/LB
Adjustment of Cassette Mechanism
Play Timing
1.
2.
No. 1372
In the playback mode, the clearance (A) between the
pinch roller arm and the stopper of head base should be
within 0.2 to 0.3 mm.
If the clearance is beyond the limits, bend the part (B)
of pinch roller arm to adjust the clearance as shown in
Fig. 17.
Pinch Roller Arm
Stopper
(Head Base)
Fig. 17
Check to see that the take-up idler turns at the same
time as the pinch roller or the take-up idler turns first
and then the pinch roller turns, when the PLAY button
is pressed.
a. If the pinch roller turns very later than the take-up
idler, bend the part (C) of head base which is
contacted with the take-up idler by the part (D) to
the (E) direction as shown in Fig. 18.
b. {f the take-up idler turns later than the pinch roller,
bend the part (C) to (F) direction.
Head base
Take-up Idler
Fig. 18
Cue & Review Mechanism
1. Timing of Cue Action
a. In the playback mode, check to see that the take-up
reel disk stops turning after the pinch roller has
stopped turning or stops at the same time and then
the mechanism becomes fast forwarding mode when
the CUE button has been pressed.
b. If the timing is out of order, adjust it as following the
item 2 of “Play Timing”.
2. Timing of Review Action
a. In the playback mode, check to see that the take-up
reel disk stops turning after the pinch roller has
stopped or stops at the same time and then the
mechanism becomes rewinding mode, when the
REVIEW button has been pressed.
b. If the timing is out of order, adjust it as following the
item 2 of “Play Timing”.
Pause Timing
In the playback mode, check that the PAUSE button is
locked and the mechanism temporarily becomes stop mode
when the PAUSE button has been pressed, and that the
button is released and the mechanism becomes playback
mode when the button has been pressed again.
If the mechanism becomes fast forwarding mode, when the
PAUSE button has been gradually pressed, bend the part
(G) of pinch roller arm to the arrow direction to adjust that
the take-up reel and the pinch roller stops at the same time
as shown in Fig. 19.
Pause Bar
Pinch Roller Arm
Fig. 19