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j-——-.o.
GF-320H/E
§
MECHANICAL ADJUSTMENT
ITEM
HG
ADJUSTMENT
POINTS
Driving
power
Tape
speed
REMARKS
(CHECK)
{More than 140 g)
Tape tension
measuring
cassette
Torque meter
Play TW-2111
Fast-forward
TW-2231
Rewind
TW-2231
30 — 60 gm)
(Fast-forward:
55 —
110 g-cm}
(Rewind:
55 ~— 110 g-cm)}
Sine waveform
attains the
maximum.
Test Tape
MTT-7113C
Azimuth
adjusting screw
Variable resistor
on motor
Test tape
MTT-111
CIRCUIT ADJUSTMENT (AUDIO SECTION)
SETTING
POSITION OF
SWITCH AND
KNOB
* Volume control: Maximum
* Balance contro]: Center
¢ Graphic equalizer: Center
* Function selector switch: Tape
* Beat cancel switch: A
ADJUST-
MENT
REMARKS {CHECK)
(A: 61.5 + 4 kHz}
(B; 62.5 + 4 kHz}
(C: 54.5 + 4 kHz}
OSCILLATION
FREQUENCY
(1.2V + 3 dB)
PLAYBACK
AMPLIFIER
SENSITIVITY
E.V: ELECTRONIC VOLTMETER
Dual-trace
External
Syncroscope
E.V.
Test Tape
MTT-113C
Record/Playback
Head
Figure 9—1
AZIMUTH
External
Speaker
Playback
Terminal
Frequency
Mode
Counter
Test Tape
MTT-111
Record/Playback
Head
Figure 9~2 TAPE
SPEED
E.V: ELECTRONIC VOLTMETER
Record
Mode
Record/Playback
Oscilloscope
Head
teres
EV.
Frequency
Counter
Record
Mode
Erase
bead
Oscilloscope
Figure 9—4
ERASE CURRENT
External
Speaker
Playback Terminal
Oscilloscope
eel
tena
Test Tape |" ws
MTT-118
Record/Playback
4 ohms
Head
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