Sony WM-DD11 - Playback Head Azimuth Adjustment; Phase Check

Playback Head Azimuth Adjustment Adjustment Locati n:
Setting : - cassette chamber -
VOLUME control: mechanical mid
TAPE SELECT switch: NORM
DOLBY NR switch: OFF
Procedure:
1. Mode: playback
test tape
P-4-A100
(10kHz, -10dB)
headphones jack
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.
L-CH
peak
output
levels
R-CH
Screw ? eak
position —» angle
L-CH R-CH
peak peak
3. Phase Check
Mode: playback
test tape
P-4-A063 .
(6.3kHz, -10dB) eo. oscilloscope
headphones
jack
screen pattern
in-phase 45" 90° 135° 180°
P Neyo ND
good wrong