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RADIO SECTION
FM section
*Function switch
:FM
¢ FM SENS switch
: DX (US, Canadian model)
*FM MODE
switch : STEREO (Except US, Canadian model)
FM RF SG
TP2 (ANT)
LEVEL METER
antenna terminal
(AC0.5-5V range)
0.01uF |
22.5kHz frequency
)
deviation by 400 Hz
signal
TP18(GND)
PHONES
Repeat the procedure in each adjustment several times since L (3, 2)
affects CT (3, 2) and CT (3, 2) affects L (3, 2). Both the frequency
coverage and tracking adjustments should end with the final
adjustment of the trimmer capacitors.
FM Frequency Coverage Adjustment
position
frequency
part
LEVEL
METER
86 .S5MHz
f minimum
(64.0MHz)
[87.35MHz]
maximum
109.5MHz
f maximum
(109.5MHz)
[108.25MHz]
(
): East European model
[
]: Italian, Saudi Arabia models
FM Tracking Adjustment
SG and set
Adiust
t
t
Reading on LEVEL
frequency
Pe eet
METER
86.5MHz
(64.0MHz )
[87.35MHz]
maximum
109.5MHz
(109.5MHz)
{108.25Mhz]
(_): East European model
[
]: Italian, Saudi Arabia models
VCO ADJUSTMENT
FM FR SG
0.01 ULF.
TP2
| > (ANT)
Carrier frequency : 98MHz (88MHz: East European model)
Modulation
: no modulation
Output level
: 55dB (562uUV)
1. Connect the frequency counter to TP7 and Ground as shown the
figure below.
2. Tune the to 98 MHz. (88 MHz: East European model)
3. Adjust RV 1 for 76 kHz + 50 Hz reading on frequency counter.
[MAIN BOARD] — Conductor side —
FREQUENCY
COUNTER
RV1: FM VCO Adjustment
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