Sony TC-158SD - Page 13

TC-1588
Record
Bias
Adjustment
Record
Level
Adjustment
Setting: Setting:
REC
LEVEL
control:
standard
record
REC
LEVEL
control:
standard
record
(See
page
10.)
(See
page
10.)
Procedure: Procedure:
1. Mode: record . 1. Mode: record
ane blank tape alee _ blank tape
CS-10
C) | sie | C)
attenuator attenuator
Co"
fo) ptt O
6002
CINE
533
Hz.
0.25V
(-1008)
1)
1kHz
4
z,
0.
~7
s ees 7.7 mV (-40dB)
2.
Mode:
playback
2.
Mode:
playback
recorded portion recorded portion
io pe
LINE OUT LINE OUT
Repeating
above
steps,
adjust
C157
(L-CH)
.
Repeating
above
steps,
adjust
RV101
(L-CH)
and C257 (R-CH) to make 10 kHz and 1 kHz and RV201 (R-CH) for 0.44V (-5 dB) reading
signal
output
levels
equal.
on
VTVM.
:
Adjustment Location:
Adjustment Location:
audio amp board
C257 (R-CH)
C157 (L-CH)
Change the blank tape to CS-20 or CS30 and
measure the LINE OUT level.
Note: When the 10 kHz level is low, turn C157
* or C257 counterclockwise. CS-10 0.44 V (-5 dB)
CS-20 0.35 V-0.55V
CS-30 (~7 dB—-3 dB)