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– 5 –

Note: Check that two switch (S1,

S2) is latched with two
adaptors when carrying
out installation.

2

screw
(B1.7 

×

 8)

1

Remove two solders.

3

knob (vol) 

4

two claws

S1

S2

5

main board 

2

two knobs (A)

1

claw

1

claw

3

two adaptors

– 6 –

AM IF ADJUSTMENT

Adjust for a maximum reading on level meter

T1

450 kHz

AM VCO VOLTAGE ADJUSTMENT

Adjustment Part

Frequency Display

Reading on Digital Voltmeter

L4

530 kHz (531 kHz)

3 ± 0.1V

Confirmation

1710 kHz (1602 kHz)

9 ± 1V (8.5 ± 1V)

AM TRACKING ADJUSTMENT

Adjust for a maximum reading on level meter

L1

580 kHz (621 kHz)

CT1

1,490 kHz (1,395 kHz)

FM VCO VOLTAGE CONFIRMATION

Frequency Display

Reading on Digital Voltmeter

87.5 MHz

3 ± 0.3V

108 MHz

Less than 11 ± 1V

FM TRACKING ADJUSTMENT

Adjust for a maximum reading on level meter

L2

87.5 MHz

CT2

108 MHz

(    ): Except US model

0 dB=1 µV

Setting:
Band switch: AM

Setting:
Band switch: FM

• Repeat the procedures in each adjustment several times, and the

tracking adjustments should be finally done by the trimmer ca-
pacitors.

Adjustment Location: Main Board (See page 7)

FM RF signal

generator

22.5 kHz frequency
deviation by 400 Hz
signal
Output level: as low as possible

+
–

level meter

2

 jack (J1)

set

MAIN board
TP (FM IN)

32 

Ω

0.01 

µ

F

+
–

digital voltmeter

MAIN board

TP (VT)

Procedure:
1. Connect the frequency counter to TP (MPX) as shown the fig-

ure below.

2. Tune the set to 98 MHz.
3. Adjust RT1 for 76 kHz reading on the frequency counter.

Specification: 75.8 to 76.2 kHz

Adjustment Location: MAIN board (See page 7)

0.01 

µ

F

MAIN board
TP (FM IN)

set

FM RF signal
generator

Carrier frequency : 98 MHz
Modulation

: no modulation

Output level

: 0.1 V (100 dB)

+
–

MAIN board

TP (MPX)

+

1 

µ

F

frequency 
counter

AM RF signal 

generator

30% amplitude
modulation by
400 Hz signal
Output level: as low as possible

Put the lead-wire
antenna close to 
the set.

+
–

level meter

set

32 

Ω

2

 jack (J1)

– 7 –

– MAIN  BOARD (Component Side) –

– MAIN  BOARD (Conductor Side) –

L4 
AM VCO Voltage Adjustment

RT1
FM Free-Run Adjustment

CT1
AM Tracking Adjustment 

L1
AM Tracking Adjustment

T1
AM IF Adjustment

FM Tracking Adjustment

CT2
L2

TP

(MPX)

TP

(FM IN)

TP

(VT)







J1

– 8 –

Procedure:
1. Connect the digital voltmeter to TP (LED) on the KEY board.
2. Press the [PULSE] button (S112) to enter pulse monitor mode.
3. Adjust RT102 for 0.24 V reading on the digital voltmeter.

Specification: 0.22 to 0.26 V

+
–

digital voltmeter

KEY board

TP (LED)

– KEY  BOARD (Component Side) –

– KEY  BOARD (Conductor Side) –

RT102 
Luminance Adjustment

TP (LED)