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— 17 —
PRECAUTION
•
Clean the following parts with a denatured-alchool-moistened
swab:
swab:
record/playback/erase head (Deck B)
pinch rollers
playback head (Deck A)
rubber belts
idlers
capstans
pinch rollers
playback head (Deck A)
rubber belts
idlers
capstans
•
Demagnetize the record/playback/erase head with a head
demagnetizer.
demagnetizer.
•
Do not use a magnetized screwdriver for the adjustments.
•
After the adjustments, apply suitable locking compound to the
parts adjusted.
parts adjusted.
•
Perform adjustment under the specified voltage unless
otherwise specified.
otherwise specified.
•
When running a mechanism deck with a cassette inserted, press
a function key while pressing down the cassette.
a function key while pressing down the cassette.
Torque Measurement
DECK A
DECK B
*
The head must be set in the FWD position before starting FF
torque measurement.
torque measurement.
Tape Tension
DECK A
DECK B
SECTION 4
MECHANICAL ADJUSTMENTS
Tension Meter
CQ-403A
CQ-403R
Mode
FWD
REV (Deck B)
Meter reading
more than 100g
(more than 1.38 oz · inch)
Meter reading
22.5 to 50g · cm
(0.31 to 0.69 oz · inch)
1.5 to 5g · cm
(0.02 to 0.06 oz · inch)
22.5 to 50g · cm
(0.31 to 0.69 oz · inch)
1.5 to 5g · cm
(0.02 to 0.06 oz · inch)
*140 to 180g · cm
(1.94 to 2.49 oz · inch)
Mode
FWD
FWD
back tension
REV
REV
back tension
FF
Torque Meter
CQ-102C
CQ-102RC
CQ-201B
5-1.
TAPE RECODER SECTION
0 dB = 0.775 V
PRECAUTION
1.
Adjustments should be performed in the order given. (Generally
playback circuit adjustments should be completed before
preforming recording circuit adjustments.)
playback circuit adjustments should be completed before
preforming recording circuit adjustments.)
2.
Adjustments should be performed for both L-ch and R-ch.
(Switches and controls should be set as follows unless otherwise
specified.)
(Switches and controls should be set as follows unless otherwise
specified.)
•
Standard Record:
Deliver the standard input signal level to the input jack and set the
VOLUME +/- keys to obtain the standard input and output signal
level.
VOLUME +/- keys to obtain the standard input and output signal
level.
•
Standard input level
•
Standard output level
•
Test tape
SECTION 5
ELECTRICAL ADJUSTMENTS
LINE IN
10 k
0.25 V (-9.8 dB)
Input Pin
Signal source impedance
Input signal level
Test Tape
WS-48A
P-4-A100
Used for
Tape speed adjustment
REC/PB/ERASE Head azimuth
and phase adjustment.
Signal
3 kHz, 0 dB
10 kHz, -10 dB
Output Pin
Load impedance
Output signal level
H.P OUT
32
0.10 V (-18 dB)
SP OUT (L, R)
3.2
0.775 V (0 dB)
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