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| TC-188SD
SECTION
3
ADJUSTMENTS
3-1. MECHANICAL ADJUSTMENTS
PRECAUTION
Clean the following parts with a denatured-
alcohol-moistened swab:
record/playback head
pinch roller
erase head
rubber belts
— Playback Mode
—
Use type CQ-102A cassette torque meter.
Demagnetize the record/playback head with
a head
demagnetizer.
(Do not bring the
head demagnetizer
close to the erase head.)
Do not use a magnetized screwdriver for the
supply reel spindle
adjustments.
After
the
adjustments,
apply a
suitable
locking compound to the parts adjusted.
Ey
5.
The adjustments should be performed with
the rated power supply voltage unless other-
wise noted.
Change the hooking
position.
back
tension
fever
Tape Path Adjustment
— Playback Mode
—
1.
Make an adjustment cassette as shown below.
Specification:
2.5—3.5 g-cm
(0.035—0.048 oz-inch)
OE):
—
C-120
oS
Cut out hatched
tape cassette
portions.
2.
In playback
mode
and
viewing
from
the
front, adjust the head heights to eliminate
tape curl and tape twist at arrowed portions.
erase head
record/playback
3-513-237-01
(t=0.1)
3-513-237-11
(t=0.2)
Shim, head height adjustment
screwdriver
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