Measurements And Adjustments; Equipment Required; The Setting Method Of Jig (Base Unit) - Panasonic KX-TG5521RUB Service Manual

11 Measurements and Adjustments

This chapter explains the measuring equipment, the JIG connection, and the PC setting method necessary for the measurement in
Troubleshooting Guide (P.24)

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: PNZZTG5521RU
Note:
*: If you have the JIG Cable for TCD500 series
11.2.1. Connections
1
Connect the AC adaptor to DC-JACK (base unit).
2
Connect the JIG Cable GND (black) to GND.
3 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.
Base unit P. C. board
(PQZZ1CD505E),
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 URX (red)
2
GND (black)
3 UTX (yellow)
JIG Cable
49
KX-TG5521RUB/KX-TGA551RUB
change the following
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
values of