Sony TC-K333ESR Service Manual page 13

Record Head Azimuth Adjustment
Setting:
REC LEVEL knob: standard record position
(See page 7.)
Procedure:
1. Mode: simultaneous REC/PB
AF OSC 10 kHz, 25 mV (—30 aB)
LINE IN
Adjust the record head azimuth adjustment screw
so that the phase difference is 0° (the difference
between L-CH and R-CH is within 5°), and out-
puts match within | dB from the peak.
c= within 1 dB
L-CH
peak
R-CH
: peak —=— angie
pea
L-CH
R-CH
screw peak peak
Record Bias Adjustment
Setting:
REC LEVEL knob:
standard record position
(See page 7.)
Procedure:
1. Mode: simultaneous REC/PB
10 kHz, 25 mV (-30 dB)
AF OSC 315 Hz, 25 mV (—30 dB)
no-signal tape
Ce)
CS-221
O attenuator
a
7 io O0°0
LINE IN
r CT501 ra
L-CH R-CH
REC board
Screen pattern
135° 180°
wrong
Note :For an adjusting trimmer, finish the adjust-
ment within one rotation from the tightly
closed state.
If more than one rotation is necessary,
remove the bias adjusting tap, and adjust the
bias again.
TYPE IV EQ tap
Normal Bias Adjustment
Setting:
REC LEVEL knob: standard record position
(See page 7.)
Procedure:
2. Adjust RV505 to obtain the same playback level at 315Hz and
1. Mode: simultaneous REC/PB 10kHz.
(The difference is within 0dB+0.5dB.)
LINE IN
10 kHz, 25 mV (—30 dB)
315 Hz, 25mV (-—30 dB)
no-signal tape
CS-122
peak
adjustment
screw
——— REC board
Bias adjustment tap
c = within 1 dB