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4-2.
GUIDE ROLLER HEIGHT
e
NOTES:
ADJUSTMENT
1. Ifthe tape slips upward; sound is produced by
contact between the tip of rotating heads and
1. Slightly loosen the tight-screw of the supply and take-
the edge of the tape.
up guide rollers as shown in the figure below.
. If the tape slips downward; the tape curls or
2. Using an ordinary cassette tape, set to PLAY mode.
wrinkles (or makes noise) at its connection
3. With a standard screwdriver, slightly turn the supply
with the lead face of the drum lead.
guide roller (no more than 180? at a time), and adjust
so that at the drum input portion, the tape travels
smoothly along the drum lead without slipping
upwards or downwards.
4. Similarly, adjust the take-up roller for the drum output.
. During loading, play, and unloading of the
cassette tape, observe the tape at the supply
guide roller, and take-up guide roller.
. Make sure that there are no сий$ or wrinkles as
shown in the figure below.
Turn with a
e
incorrect
Gorset
e standard screwdriver
roller
Guide Roller
Tight Screw
O
e
Guide Roller
. Observe the tape as it wraps around the drum
during PLAY and separates from the drum
Adjusting Guide Roller Height
during STOP.
. As shown in the figure below, make sure that
there is no damage to C and D and that there
is no contact noise between the head tips and
tape edge.
NOTES:
1. Loosen the tight-screw only enough to allow
the guide rollers to be rotated. Loosening it
anymore than that may rotate the roller
inadvertently as a result of tape motion.
. Rotate the roller carefully to avoid damage to
the tape.
. When
the adjustment is completed, tighten
the screw and and set by locking up the screw.
Take-up
Guide Roller
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Drum Lead
Drum Lead Check-2
7. If a defect is detected during check, perform
the follwoing procedure for adjusting Guide
Roller height.
MA-5
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