Tape Speed Adjustment Procedure: Mode: FWD playback
test tape WS-48B (3 kHz, 0 dB) 47 k � frequency counter
level meter 47 k � set

+ �
set LINE OUT
+ �
LINE OUT
  
2. Turn the adjustment screw for the maximum output levels. If these levels do not match, turn the adjustment screw until both of output levels match together within 1 dB.
  
1. Set to FWD playback mode. 2. Adjust RV801 so that the frequency counter reading becomes 2,980 ± 30 Hz. 3. Confirm that the deviation between tape top and tape end is within 3%. Playback Level Adjustment Procedure: Mode: FWD playback
test tape P-4-L300 (315 Hz, 0 dB) 47 k � set
L-CH peak output level R-CH peak
within 1dB within 1dB
level meter + � LINE OUT
Screw position
angle L-CH peak R-CH peak
3. Phase Check Mode : playback
test tape P-4-A100 (10 kHz, �10 dB) L-CH set 47 k � 47 k �
V + � + � H
Adjust RV151 (L-CH) and RV251 (R-CH) so that the reading on level meter meets the adjustment limits below.
oscilloscope
Adjustment Limits: LINE OUT level: �4.7±0.5 dB (0.43 to 0.48 V) Level difference between channels: within 2 dB Check that the LINE OUT level does not change even if Playback and Stop operation is repeated several times. Adjustment Location: DECK board
4. Set in the FWD mode and repeat the step 1 to 3. 5. After the adjustment, lock the screw with locking compound. Adjustment Location: Record/Playback head