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.
j ADJUSTMENT
OF DECk & TORQUE
1.
Amplifier
Adjustment
TAPE
SW
: NORMAL
..
..
I
I
3
I
Reel Play
I
DECK
2
Level
'4
Ret/Play
DECK 2
Frequency
ADJUST
INPUT
DOLBY SW
OUTPUT
POINT
REMARKS
TAPE
Azimuth
VTT738
OFF
Adjust
so as 10k Hz output
become
OUT
Screw
maximum.
SVR30 (L-ch)
.,
TAPE
TCC130
OFF
SVR31 (R-ch)
Adjust so as TAPE OUT output
become
OUT
SVR32 (L-ch)
0.54V.
SVR33 (R-ch)
lkHz
TAPE
AC224
OFF
SVR34 (L-ch)
Adjust SVR so as Monitor
olp = RIP Level
-18d8
OUT
SVR35 (R-ch)
= OdBf ldB.
lkHz/10kHz
R/P signal,
set frequency
characteristic
AC224
TAPE
OFF
SVR36 (L-ch)
-28dB
OUT
lkHz
output
to OdB. Adjust
SVR so as
SVR37 (R-ch)
10k Hz output
become
t ldB.
Note.
1. During alignment,
measurement
Beat cancel SW is at 1 condition
fundamentally,
confirm
Ret/ Play frequency
characteristic,
dolby effect also by 2 condition,
when ship out set SW to 1 position.
. .-
2.
Tape
Speed
Adjustment
Connect the FREQUENCY COUNTER to TAPE OUT.
1.
2.
3.
4.
s.
6.
7.
B.
9.
Insert the test tape(MTT-111
N, etc. : 3000 Hz) into the DECK 1.
Note:
Set the test tape
near the tape end.
Press the FWD PLAY button.
Adjust SVROO1 so that a frequency
counter reading of 3000 k S Hz is obtained.
Press the STOP button,
and eject the test tape.
Insert the test tape(TCW-211,
etc. :
1500Hz)
into the DECK 1.
Insert the tape (C-60 Blank tape)
into the DECK 2.
Press the REC button of DECK 2 and press the TAPE A/B
button.
Press the FWD PLAY button.
Both mechanism
become normal speed dubbing.
'
,-
Short the high speed test pin to the high speed position.
. .
(The mechanism
is high speed dubbing.)
Confirm that a frequency
counter
reading
of 2700-
3300Hz
is obtained.
/
3.
Torque
Measurements
FOR Hl SPEED PIN
H
ITEM
TAKE-UP TORQUE
I
~CK
TENSION
PULLEY TENSION
/
PLAY :TW211 1(FWD)
PLAY :TW211 1(FWD)
Driving
power cassette:
i
!
Test cassette
PLAY: -I-W2121(REV)
PLAY: TW2121(REV)
TW-2412(FWD)
/
F.FWD/REW;TW2231
REWTorque
Gage
TW-2422(REV)
I
PLAY
30-
60gr.cm
2.0-
5.Ogr.cm
> 80g
F.FWD
70-
140ar.cm
{
REW
I
70-
140gr.cm
;
I
I
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