Sanyo DC-F320 - Page 15

TAPE DECK ADJUSTMENTS
(3)Motor speed
NORMAL SPEED
1. Insert the test tape (MTT-111 N) into Tape “A” or “B”.
2. Align to 3020 f 1 OHz by VR311.
3.Confirm 2980 f 40Hz at this condition.
(4)BiAS Alignment
Adjust L,R output to 700mV by VFi374,384 which activating
BIAS circuit.
TAPE OUTPUT
TESTPOINT
CN373
BIAS-ADJUSTMENT
w c
TAPE SPEED
UI!
L-CH
VR374
ADJUST;;3!; a
ui
BIAS-ADJUSTMENT
BIAS-FREQUENCY
R-CH
@I
ADJUSTMENT
VR384
L3601
2. CHECKING THE MECHANISM TORQUES
1. Clean the head, capstan and pinch roller before making any measurement.
2. Check the both normal and reverse playback.
Measureent Take-up torque
Cassette for
PLAY : TW-211 lA(FWD)
measurement
FSWDIREW : TW-2231
PLAY
25 - 63gr.cm
F.FWD/REW
60 - 120ar.cm
Back tension
PLAY : TW-211 lA(FWD)
2.0 - 5.0gr.cm
Tape tension
Drive-power cassette
TW-2412(FWD)
70 gr or more
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