VCO ADJUSTMENT (MPX,
1)
Set to Service Mode.
2) Select TEST with and
set the data to “1”.
And then press
to MONO.
3) Select MPX, set the data “8” .
4) Connect an audio oscillator to R 116 using
electrolytic capacitor
and appply the
frequency
V
ST
.
Then, apply DC voltage to pin
of VIF pack using
connect to
line.
audio oscillator
f r o m
line ,
10
K
V 4 fh : SINE-WAVE 62.936 KHz
0.1 KHz
LEVEL 3.0 Vp-p
5) Select STEV
set the data to “00”
And then, send up the data gradually. Set
the data to
before SAT2 changes from 0 to 1.
6) Send up data gradually, set the data to D2 when
SAT2 changes 1 from 0.
7) Adjust the data of STEV to
.
8) Write into the memory by pressing
.
10000010
MONO
data
IN LEVEL ADJUSTMENT
1) Set to Service Mode.
2) Select TEST
and
set the data to “0”
And then
MONO.
3) Select MPX with and
set the data to “08”
4) Write into the memory by pressing
.
[PILOT CANCEL ADJUSTMENT
1)
Set to the Service Mode.
2) Select TEST with and
set the data to “0”
with And then
MAIN.
3) Select
set the data to “08”
4) Write into the memory by pressing
.
VCO f (ADJUSTMENT
1) Set to Service Mode.
2) Input a stereo broadcast signal with SAP.
3) Select TEST with and
set the data to “0” .
And then, press
MAIN.
4) Connect a digital multimeter to
This voltage reading will equal V 1.
5) Press MTS to SAP and this voltage will equal V 2.
6) Select SAPV
that
V
VDC.
7) Write the memory
.
AD
JUSTMEN
T
1) Set to Service Mode.
2)
MAIN and receive a monoral broad
-cast signal.
In the next step, receive a stereo broadcast signal.
3) Select SEP and VD with and
adjust and
so that a clear stereo sound is effected.
