No. 51834
AV-N29302
24
ADJUSTMENT OF MTS CIRCUIT
Item
Measuring
instrument
Test point
Adjustment part
Description
MTS INPUT
LEVEL
check
No.1 IN LEVEL
1. Select the “No.1 IN LEVEL” of the SOUND MODE.
2. Verify that the “No.1 IN LEVEL” is set at its initial setting value.
MTS STEREO
VCO
adjustment
Signal
generator
Frequency
counter
R OUT
[AUDIO OUT]
No.2 FH MON.
No.3 ST VCO
1. Receive a RF signal (non-modulated sound signal) from the
antenna terminal.
2. Select the “No.2 FH MON.” of SOUND MODE, and change the
setting value from 0 to 1.
3. Connect the Frequency Counter to R OUT RCA pin of the
AUDIO OUT.
4. Select the “No.3 ST VCO”.
5. Set the initial setting value of the “No.3 ST VCO” with the
LEFT/RIGHT key of the menu.
6. Adjust the “No.3 ST VCO” so that the Frequency Counter will
display 15.73kHz
±
0.1kHz.
7. Select the “No.2 FH MON.” of the SOUND MODE, and reset
the setting value from 1 to 0.
MTS SAP
VCO
adjustment
Signal
generator
Frequency
counter
【
【
【
【
MPX
】
】
】
】
Connector
【
【
【
【
4
】
】
】
】
pin SDA
【
【
【
【
3
】
】
】
】
pin GND
R OUT
[AUDIO OUT]
No.8 5FH MON.
No.9 SAP VCO
1. Receive a RF signal (non modulated sound signal) from the
antenna terminal.
2. Connect between pin
【
4
】
of
【
MPX
】
connector and GND (Pin
【
3
】
of
【
MPX
】
connector) through 1M
Ω
Resistor.
3. Select the “No.8 5FH MON.” of the SOUND MODE, and reset
the setting value from 0 to 1.
4. Connect the Frequency Counter to R OUT RCA pin of the
AUDIO OUT.
5. Select the “No.9 SAP VCO”.
6. Set the initial setting value of “No.9 SAP VCO” with the
LEFT/RIGHT key of the menu.
7. Adjust the “No.9 SAP VCO” so that the Frequency Counter will
display 78.67kHz
±
0.5kHz.
8. Select the “No.8 5FH MON.” of the SOUND MODE, and reset
the setting value from 1 to 0.
