Measurements And Adjustments; Equipment Required; The Setting Method Of Jig (Base Unit); Connections - Panasonic KX-PRX120W Service Manual

KX-PRX120W/KX-PRXA10W

11 Measurements and Adjustments

This chapter explainms the measuring equipment, the JIG connection, and the PC setting method necessary for the measurement
in Troubleshooting Guide (P.22)

11.1. Equipment Required

• Digital multi-meter (DMM): it must be able to measure voltage and current.
• Oscilloscope.
• Frequency counter: It must be precise enough to measure intervals of 1 Hz (precision; ±4 ppm)
Hewlett Packard, 53131A is recommended.
• DECT tester: Rohde & Schwarz, CMD 60 is recommended.
This equipment may be useful in order to precisely adjust like a mass production.

11.2. The Setting Method of JIG (Base Unit)

This section explains the PC setting to use command required in Check Point (Base Unit)(P.36).
<Preparation>
• Serial JIG cable: PQZZ1CD300E*
• PC which runs in DOS mode
• Batch file CD-ROM for setting: PNZZPRX150

11.2.1. Connections

Connect the AC adaptor to DC-JACK (base unit).
Connect the JIG Cable GND (black) to GND.
Connect the JIG Cable RX (red) to URX and TX (yellow) to UTX.
1
AC adaptor
Note:
*: COM port names may vary depending on what your PC calls it.
GND
UTX URX
Base unit P. C. board
Note:
*: If you have the JIG Cable for TCD500 series
(PQZZ1CD505E), change the following values of
resistance. Then you can use it as a JIG Cable for both
TCD300 and TCD500 series. (It is an upper compatible JIG
Cable.)
Resistor
R2
R3
R4
R7
3
UTX (yellow)
3 URX (red)
2
GND (black)
JIG Cable
46
Old value (kΩ) New value (kΩ)
22 3.3
22 3.3
22 4.7
4.7 10
To Serial Port
(COM port 1*)
PC