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15
MV-700HR
MAIN SECTION
1. DC/DC CONVERTER ADJUSTMENT
1-1. Frequency Adjustment
Setting:
Procedure:
1. Connect an oscilloscope or frequency counter to the TP1955
and TP1938 (GND) on the MAIN board.
2. Press the
[POWER]
button to turn the power on.
3. Adjust the RV1001 on the MAIN board so that the value of
oscilloscope or frequency counter becomes 243.5 kHz
±
0.5
kHz.
1-2. Other Voltages Check
Setting:
Procedure:
– VCC1 Voltage Check –
1. Connect a digital voltmeter to the TP1924 and TP1938 (GND)
on the MAIN board.
2. Press the
[POWER]
button to turn the power on.
3. Check that the value of digital voltmeter is 6.05 V
±
0.2 V.
– VCC2 Voltage Check –
4. Connect the digital voltmeter to the TP1955 and TP1938
(GND) on the MAIN board.
5. Check that the value of digital voltmeter is 5.2 V
±
0.2 V.
Adjustment Location:
+
–
oscilloscope
or
frequency counter
MAIN board
TP1955
TP1938 (GND)
+
–
digital voltmeter
MAIN board
TP1924/TP1955
TP1938 (GND)
SECTION 5
ELECTRICAL ADJUSTMENTS
RV1001
– MAIN BOARD (Component Side) –
TP1924
TP1938 (GND)
TP1955
– MAIN BOARD (Component Side) –