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Adjustment
Equipment: Oscilloscope
Test Point:
• TP1502 (B-2)/DM-152 board
• GND: E14 (B-1)/DM-152 board
Adjusting Point: LV1502 (B-1)/DM-152 board
Specification: 2.5 ±0.2 V
E14
1
LV1502
TP1502
2
3
4
5
6
A
B
C
D
DM-152 board (Side A)
5-6-3.
Tone Detection Frequency Adjustment
Frequency Adjustment
Preparation
• Disconnect the coaxial cable from the connector CN3901 on the DM-152 board.
• Connect the measuring equipment as shown in the figure.
CH2
Probe
IN
Oscilloscope
Adjustment
Equipment: Frequency counter
Test Point:
• TP1505 (B-2)/DM-152 board
• GND: E14 (B-1)/DM-152 board
Adjusting Point: RV1503 (B-2)/DM-152 board
Specification: 16.38 ±0.10 kHz
HXCU-TX70
A=2.5 ? 0.2 V
GND
E
F
G
CH2
IN
OUT
Frequency counter
5-15
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