Sony TC-766-2 Service Manual page 16

TC-766-2
VU Meter Calibration Record Head Angle Adjustment
Setting: Setting:
MONITOR switch: SOURCE MONITOR switch: TAPE
Procedure: Procedure:
1. Mode: record Mode: record and simultaneous playback
PLAYBACK HEAD switch: 2T REC
af osc
raphe is een
blank tape.
ae attenuator 600
oO
MIC LINE OUT
400 Hz, 0.77mV (-60dB) 0.44V (-5dB) MIC (L&R
15 kHz, SRV (-80 dB)
RV106 (L-CH)
RV306 (R-CH)
Adjustment Location:
LINE OUT (L & R)
— audio amp board —
Loosen the adjustment screws dd) and ().
Correctly position the record head by moving
the adjustment screw ) in the arrowed direc-
tions for the highest VTVM reading.
Note: Slightly touch the supply reel and at
this time the VITVM reading deviation
should be less than 1 dB.
After the adjustment, apply a suitable locking
compound to the screws.
3 rote a = ° a Hi is M053 oocaes Lt 4 Adjustment Location:
ber TEP stone Mtset ' '
«fie
— head base —
angle adjustment screw (2)
RV106 (L-CH) RV306 (R-CH)
angle adjustment screw @)