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ELECTRICAL ADJUSTMENT MAIN C.B
2
1 R/P HEAD
PRACTICAL SERVICE FIGURE
1. Azimuth Adjustment Settings: � Test tape: TTA-330 � Test point: EARPHONE JACK (J102) � Adjustment location: Azimuth adjustment screw � PAUSE: OFF � VOLUME: Maximum. � PLAYBACK SPEED: Normal (Speed volume center) Playback the test tape, and adjust so that the output (8 kHz) becomes maximum. 2. Tape Speed Adjustment Settings: � Test tape: TTA-100 (TAPE CENTER) � Test point: EARPHONE JACK (J102) � Adjustment location: VR102 � PAUSE: OFF � VOLUME: Maximum � PLAYBACK SPEED: Normal Method: (Speed volume center) Playback the test tape, and adjust for 3000 Hz ±10Hz Tape speed: Wow & flutter: Take-up torque: F.F torque: REW torque: S/N ratio: (Vol: Max - 10 dB) Distortion: (Vol: Max - 10 dB) Noise level: (Vol: Max) Erasing ratio: Test tape 3000 Hz ± 60 Hz Less than 0.55% 20 ~ 50 g-cm (FWD) More than 55 g-cm More than 55 g-cm More than 45 dB (PB) More than 25 dB (R/PB) Less than 3.0% (PB) Less than 5.0% (R/PB) Less than 5.0 mV (PB) Less than 16 mV (R/PB) More than 28 dB (1kHz, 50dB) TTA-100 TTA-330
