SECTION 5SECTION 6
MECHANICAL ADJUSTMENTSELECTRICAL ADJUSTMENTS
Precaution
DECK SECTION0 dB=0.775V
1. Clean the following parts with a denatured alcohol-moistened
swab:1. Demagnetize the record/playback head with a head damagnetizer.
record/playback headspinch rollers
2. Do not use a magnetized screwdriver for the adjustments.
erase headrubber belts3. After the adjustments, apply suitable locking compound to the
capstanidlers
parts adjusted.
2. Demagnetize the record/playback head with a head demagne-4. The adjustments should be performed with the rated power sup-
tizer.ply voltage unless otherwise noted.
3. Do not use a magnetized screwdriver for the adjustments.
5. The adjustments should be performed in the order given in this
4. After the adjustments, apply suitable locking compound to theservice manual. (As a general rule, playback circuit adjustment
parts adjusted.should be completed before performing recording circuit adjust-
5. The adjustments should be performed with the rated poment.)wer sup-
ply voltage unless otherwise noted.6. The adjustments should be performed for both L-CH and R-CH.
7. Switches and controls should be set as follows unless otherwise
Torque Measurementspecified.
ModeTorque meterMeter reading
36 to 61 g Y cmTapeSignalUsed for
FWDCQ-102C
(0.5 - 0.84 oz Y inch)P-4-A10010 kHz, �10 dB Azimuth Adjustment
FWD2 to 6 g Y cm
back tension(0.02 - 0.08 oz Y inch)CQ-102CWS-48B3 kHz, 0 dBTape Speed Adjustment
36 to 61 g Y cmP-4-L300315 Hz, 0 dBLevel Adjustment
(0.5 - 0.84 oz Y inch)REVCQ-102RC
REV2 to 6 g Y cm
back tensionCQ-102RC(0.02 - 0.08 oz Y inch)Record/Playback Head Azimuth Adjustment
(Deck A, Deck B)
FF/REWCQ-201B61 to 143 g Y cm
(0.85 - 1.99 oz Y inch)
Note: Perform this adjustments for both decks.
FWD tensionCQ-403A100 g or more
(3.53 oz or more)
100 g or moreProcedure:
REV tensionCQ-403R1. Mode : Playback
(3.53 oz or more)
test tape
P-4-A100main board
(10kHz, �10dB)CN403
Pin 3 (L-CH)level meter
Pin 1 (R-CH)
set
main board
CN403
Pin 2 (GND )
� 12 � |
ACEC
SONY
