– 17 –
MD-X60H
ADJUSTMENT
fL: Low-range frequency
fH: High-renge frequency
• AM adjustment and confirmation
Figure 17-1 AM IF
TUNER SECTION
• TEST mode setting method
Holding down the ENTER button and TUNER (BAND) button,
turn on the power. Frequency is set in the memory (initial
setting) as shown in Table 17. Call the setting with the
PRESET button to use it for tuner circuit adjustment or
confirmation.
Preset No.
Frequency
P01
87.50 MHz
P06
522 kHz
P02
108.00 MHz
P07
1,620 kHz
P03
90.00 MHz
P08
603 kHz
P04
106.00 MHz
P09
1,404 kHz
P05
98.00 MHz
P10
990 kHz
Adjusting item
Adjusting object
Adjusting
method
IF
Adjust the indication of Set IF wafeform
T351 set to 1,620 kHz. 450 kHz to maximum.
Frequency cover
fL: T306 (522 kHz)
fL: 1.1 ± 0.1 V
(VT line voltage of
Adjust the indication
fH: 7.3 ± 1.3 V
of pin 20 of IC302)
of set to 522 kHz.
(Only confirmation)
fH: (1,620 kHz)
Tracking
fL: T302 (990 kHz)
Set the output of
speaker terminal
to maximum.
AM signal oscillator Frequency 400 Hz, 30%, AM modulation
• FM mute level adjustment
Frequency
Adjusting
object
Adjusting
method
98 MHz
30 dB
VR351
Input: SO301
Output: Speaker
Terminal
FM signal oscillator Frequency 400 Hz, 22.5 kHz
Adjusting object
Preset No.
Frequency
Figure 17-2 FM Mute Level
Table 17 Initial setting of memory
GND
AM Loop Antenna
Loop Antenna
Electronic
voltmeter
IF : Speaker Terminal
Freqency cover: IC302,Pin 20
UNIT
FM signal oscillator
SO301
Electronic
voltmeter
Speaker
Terminal
UNIT
FM signal oscillator
1
12
13
VR351
T306
T351
IC302
T302
CNP301
FE301
AM IF
20
TUNER PWB
FM Mute Level
AM Band Coverge
AM Tracking
SO301
Antenna Terminal
Figure 17-3 Adjustment Point
• Erasing the registered broadcast station
Holding down TRACK EDIT and ENTER in power-off state,
press POWER.
All the registered stations are erased.
Note:
Even when the RESET switch provided at the rear side of this
model, is pressed, the preset of tuner is not cleared.