A s f o r a d j u s t i n g m e t h o d r e f e r t o t h e r e l e v a n t e x p l a n a t i o n i n
S e r v i c e M a n u a l “A D J U S T M E N T P R O C E D U R E S O F A U D I O
P R O D U C T S ”.
Driving Force check
Torque Meter
Play: TW-2412
Torque Check
Specified Value
Over 140 g
Torque Meter
Specified Value
Tape 1
Tape 2
Play:
TW-2111
35 to 60
30 to 65
F a s t f o r w a r d : T W - 2 2 3 1
to 135 g.cm
Rewind: TW-2231
80 to 135 g.cm
Head Azimuth
Test Tape
MTT-114
Instrument Connection
Speaker terminal
(Load resistance: 4 ohms)
Tape Speed
Test Tape Adjusting Point Specified Value
Instrument
C
o n n e c t i o n
Speaker
Normal
terminal
speed
MTT-111 Tape 2: VR501 3,000
300 Hz (Load
resistance:
4 ohms)
Position of each switch or control
Volume
Max
Beat cancel switch
A/STEREO
Graphic equalizer
Center
Tape speed
N o r m a l
Mechanism mode
Function
2
Tape
Bias Oscillation Frequency/Bias Current check
Specified Value
A: 97
4
Beat cancel
B : - 2
2
for A
C: - 7
2
for B
Resistor for measurement:
100 ohms
38
5
. Erase Current check
Specified Value
Resistor for measurement: 1 ohm
65 4 20
. Playback Amplifier Sensitivity check
Test Tape
Specified
Instrument Connection
MTT-118
1.0 V
3
Speaker terminal
(Load resistance: 4
M A I N P W B - A l
Figure 6 ADJUSTMENT POINTS