1-2 Cassette Deck
1-2-1. Recording BIAS adjustment
1) Connect frequency counter to KC433 (See Fig.1-6)and press the Record button. 2) Adjust KT431 (BIAS OSC COIL) until frequency counter reads 50KHz.
1-2-2. Tape AZIMUTH adjustment
1) Connect the equipments as per Fig.1-8 to adjust the tape azimuth with test tape (recorded at 6.3KHz : MTT-113N) 2) Play the test tape after inserting in DECK. 3) Adjust the azimuth ajustment screw of left side of record/play head for maximum output and for the same channel phase. (see Fig.1-7)
1-2-3. Tape speed adjustment
1) Connect the equipments as shown in Fig.1-8 adjust the tape speed with test tape (recorded at 3KHz : MTT-111N)
PRE/REC PART
KC433
50KHz FREQUENCY COUNTER
Fig.1-6 Recording bias adjustment
Adjustment
R/P head
Adjustment screw
Fig.1-7 Azimuth speed adjustment
VTVM
OSCILLOSCOPE UNIT UNDER TEST 3000Hz FREQUENCY COUNTER
