Teac X-7RMKII - Page 6

X-7RuW/ X-7ucll
2-11 REVERSE SOLENOID ADJUSTMENT
(X-7RMKII ONLY)
1. When the reverse solenoid releases, if the slide plate hits the
stopper screw/s noisily, the solenoid stopper plate may be ad-
justed in the direction of the solenoid housing. See illustration.
Parts below are accesible from the rear of the amplifier
chassis.
Loosen
slide plate
solenoid
stopper
plate
stopper screws
BEFORE
reverse solenoid
Fix after adjustment
TA-1039
—_ 0.5 mm max.
Adjustment range is 0.5mm max. in solenoid-off condition.
Fig. 2-10
2-12 ROTATING PART THRUST CLEARANCE CHECKS
Reference values
Capstan shaft: 0.1mm to 0.25mm (magnefloat type)
Guide roller: 0.05mm to 0.3mm
Tension arm guide roller: 0.05mm to 0.3mm
Reel motor: 0 (spring type)
Tension arm: 0 (spring type)
NOTE: Since the capstan shaft is a magnefloat type, check that it is
forced towards the rear of the deck while rotating.
2-13 CAPSTAN MOTOR REPLACEMENT
7. When the capstan motor is replaced, install it with its lead
wires and washers as shown.
2. Check that, when the deck is operated by repeating the forward
and reverse play modes, the capstan drive belt changes position
on the flywheels smoothy.
Fig. 2-11
2-14 TAPE SPEED ADJUSTMENT
FREQUENCY COUNTER
OSCILLATOR
DECK
under TEST
LINE IN
iw
T.403
Fig. 2-12
NOTES: 1. Conduct all the following in both forwar and reverse
play modes.
2. When ordering test tapes, allow for the longer delivery
time that is required for them.
1. Connect a frequency counter to either OUTPUT terminal.
2. Load a TEAC YTT-2003 test tape. Set the SPEED switch—
HIGH, and PITCH CONT knob-OFF.
3. Play the tape. Adjust R18 (see Fig. 2-8) for a reading of 3,000
Hz +5Hz,
4, Check the following at the beginning and the end of the tape.
Specifications:
Tape Speed deviation.............0. 3,000Hz +30Hz
Tape speed drift... . 0... 0... ee eee ee eee 15Hz
FWD/REV tape speed differential . .30Hz(X-7RMKII only)