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SECTION 3 ADJUSTMENTS
3-1. MECHANICAL ADJUSTMENTS
3-2. ELECTRICAL ADJUSTMENTS
1. Clean the following parts with a denatured-alcohol-moistened swab : playback head pinch roller capstan rubber belt 2. Demagnetize the playback head with a head demagnetizer. Do not use a magnetized screwdriver for the adjustments. 3. These measurement and adjustment should be performed with the rated power supply voltage (2.5 V) unless otherwise noted. Torque Measurement
Mode FWD FWD back tension REV (FX467/FX467ST) REV back tension (FX467/FX467ST) FF, REW CQ-201B CQ-102C Torque meter Meter reading 20 â 42 g â¢ cm (0.28 â 0.58 ozâ¢ inch) less than 2 g â¢ cm (less than 0.027 ozâ¢ inch) 20 â 42 g â¢ cm (0.28 â 0.58 ozâ¢ inch) less than 2 g â¢ cm (less than 0.027 ozâ¢ inch) more than 60 g â¢ cm (more than 0.84 ozâ¢ inch)
â¢ Supplied voltage : 2.5V. â¢ Switch and control position MEGA BASS : OFF VOLUME control : maximum AVLS : NORM
0 dB = 0.775V
Signal 3kHz, 0dB
Used for Tape Speed Adjustment
Tape Speed Adjustment Procedure :
test tape WS-48A (3kHz, 0dB) set
frequency counter 32 â¦
phones jack (J301)
(FX277) 1. Playback WS-48A (tape center part) and adjust RV601 so that the frequency counter reading becomes 3,000Hz. Standard value : 2,985â3,015Hz 2. Playback WS-48A (tape top and end) . Check that frequency counter reading is within Â±1.0% of the reading of step 1. (FX467/FX467ST) 1. Playback WS-48A (tape center part) in the FWD state and adjust RV601 so that the frequency counter reading becomes 3,000Hz. Standard value : 2,985â3,015Hz 2. Playback WS-48A (tape center part) in the REV state. Check that frequency counter reading is within Â±1.0% of the reading of step 1. Adjustment Location :
RV601 : Tape speed Adjustment