The Setting Method Of Jig (Base Unit) - Panasonic KX-TG1843ALS Service Manual

KX-TG1843ALS / KX-TGA122AZS / KX-TGA121AZS
8.2.

The Setting Method of JIG (Base Unit)

8.2.1. Preparation
8.2.1.1. Equipment Required
• • • • DECT tester: Rohde & Schwarz, CMD 60 is recommended.
• • • • Frequency counter: it must be precise to be able to measure 1Hz (precision; ±4ppm).
Hewlett Packard, 53131A is recommended.
• • • • Digital multi-meter (DMM): it must be able to measure voltage and current.
• • • • Oscilloscope
8.2.1.2. JIG and PC
• • • • EEPROM serial JIG
JIG Cable: PQZZ1CD300E*
• • • • PC which runs in DOS mode
• • • • Batch file CD-ROM for setting: PQZZTG1840AL
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.)
8.2.2. PC Setting
8.2.2.1. Connections
1. Connect the AC adaptor to CN2 (base unit).
2. Connect the JIG Cable GND (black).
3. Connect the JIG Cable URX (red) and UTX (yellow).
Note:
*: COM port names may vary depending on what your PC calls it.
Resistor Old value (kΩ)
R2 22
R3 22
R4 22
R7 4.7
30
New value (kΩ)
3.3
3.3
4.7
10