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CASSETTE MECHANISM ELECTRICAL ADJUSTMENTS
General Remarks
Before attempting to adjust the mechanism, wipe clean all tape-contacting surfaces (pinch roller, REC/PB
head, erase head, and capstan), as well as the contact surfaces of the driving parts (motor pulley, flywheel,
pulley, belt, and clutch assembly), with a piece of soft cloth moistened with denatured alcohol. Grease stains
may cause trouble.
Never use a magnetized screwdriver for head adjustment.
Equipment Required
Oscilloscope
Frequency counter
Screwdriver (Plastic type)
Test tapes MTT-113C (TEAC) or TCC-111N (TEAC)
Head Azimuth Adjustment (Figures 7 and 8)
Step
Play the test tape 8 KHz
1
position. (MTT-113C)
Note: Mode Switch is X-Y position.
Setting
Azimuth screw
(Figure 8)
Set
J501
Headphone Jack
Figure 7
Adjust Screw
Figure 8
7
Adjust
Obtain the maximum amplitude.
(A: Maximum) (B: Minimum)
Oscilloscope
R/P Head
Result
B
A
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