SECTION 5 MECHANICAL ADJUSTMENTS
Precaution 1. Clean the following parts with a denatured alcohol-moistened swab: record/playback heads pinch rollers erase head rubber belts capstan idlers 2. Demagnetize the record/playback head with a head demagnetizer. 3. Do not use a magnetized screwdriver for the adjustments. 4. After the adjustments, apply suitable locking compound to the parts adjusted. 5. The adjustments should be performed with the rated power supply voltage unless otherwise noted. Torque Measurement
Mode Torque meter Meter reading
SECTION 6 ELECTRICAL ADJUSTMENTS
DECK SECTION
0 dB=0.775 V
1. Demagnetize the record/playback head with a head demagnetizer. 2. Do not use a magnetized screwdriver for the adjustments. 3. After the adjustments, apply suitable locking compound to the parts adjust. 4. The adjustments should be performed with the rated power supply voltage unless otherwise noted. 5. The adjustments should be performed in the order given in this service manual. (As a general rule, playback circuit adjustment should be completed before performing recording circuit adjustment.) 6. The adjustments should be performed for both L-CH and RCH.
FWD
CQ-102C
FWD back tension REV
CQ-102C
3.06 N � m to 6.96 N � m 31 to 71 g � cm (0.43 � 0.98 oz � inch) 0.19 N � m to 0.58 N � m 2 to 6 g � cm (0.02 � 0.08 oz � inch) 3.06 N � m to 6.96 N � m 31 to 71 g � cm (0.43 � 0.98 oz � inch) 0.19 N � m to 0.58 N � m 2 to 6 g � cm (0.02 � 0.08 oz � inch) 6.96 N � m to 14.02 N � m 71 to 143 g � cm (0.98 � 1.99 oz � inch) 9.80 N � m 100 g or more (3.53 oz or more) 9.80 N � m 100 g or more (3.53 oz or more)
7. Switches and controls should be set as follows unless otherwise specified. � Test Tape Tape P-4-A100 WS-48B P-4-L300 Signal 10 kHz, �10 dB 3 kHz, 0 dB 315 Hz, 0 dB Used for Azimuth Adjustment Tape Speed Adjustment Level Adjustment
CQ-102RC
Record/Playback Head Azimuth Adjustment
REV back tension FF/REW
CQ-102RC
DECK A
DECK B
Note: Perform this adjustments for both decks
CQ-201B
Procedure: 1. Mode: Playback
test tape P-4-A100 (10 kHz, �10 dB) main board CN301 Pin 3 (L-CH) Pin 1 (R-CH) level meter set main board CN301 Pin 2 (GND) + �
