STRINGING
OF
DIAL
CORD
Pulley
(227)
1. Turn the drum fully in the direction A shown in Fig.
4-1
and stretch its cord over the parts in the numerical order.
2. The turn the tuning control shaft fully in the direction
B
shown in Fig. 4-l and fix its pointer as shown in Fig. 4-2.
Figure 4-l
MECHANICAL ADJUSTMENT
E.V:
ELECTRONIC VOLTMETER
DUAL-TRACE
SY
NCROSCOPE
ITEM USING JIG
I
ADJUSTMENT REMARKS (CHECK)
POINTS
More than 150
g
Tape
tention
megurering
cassette
TW-2412
Torque meter
Play
-rw-2111
Fast-forward
TW-2231
Rewind
TW-2231
Driving
power
Torque
(Play:
30-60
g-cm)
(Fastforward
:
80-140
g-cm)
(Rewind
:
80-l
40 g-cm)
1
HEADPHONES
JACK
IRIGHT)
Figure 4-3 AZIMUTH
RECORD/PLAYBACK
HEADPHONES
..-..
FRECXJENCY
HEAD
.lAtiK
PLAY BACK
/
COUNTER
M
Azimuth
Tape
spa&
TEST TAPE
m-r-1
11
Figure 4-4 TAPE SPEED
TEST
TAPES
1
TORQUE METER
FOR
COMPACT
CASSETTE
COMPACT
CASSETTE TYPE
TITLE
FLUTTER
MODEL
FREQUENCY/
LEVEL
APPLICATION
Tape
speed,
MTT-111
3
kHr,
-10
-10
Wow and flutter
check
MODEL
MEASUREMENT
RANGE
APPLICATION
TW-2111
lo-
16Ogcm
Normal
:
Playback torque
1.5-log-cm
Normal
:
Back
tension
TW-2121
lo-
1OOgcm
Reverse
:
Playback torque
1.5
-
log-cm
Reverse
:
Back tension
TW-223 1
30
-
200 g-cm Fast-forward, Rewind torque
AZIMUTH
MTT-113
6.3 kHz,
-10
dB
MTT-113C
8 kHz, -10 d6
Head
arimuth
MTT-I 14
10
kHz, -10 d6
adjustment
DISTORTION
MTT-118
1 kHz, -10
dB
Distortion check
level adjustment
TW-2412
o-3oog
TW-2422
o-3oog
Normal
:
Driving power
Reverse
:
Driving power
1
U&‘L’ELI
MTT-150
1
Dolby
B-Type
/
DoIN
NR
B-type
1
Tone 200
m&/m
level adlustment
BLANK
MTT-502
Record frequency
-
check
-4-
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