50
KX-TG2853BXS/KX-TG2854BXS/KX-TGA280BXS
12.3. The Setting Method of JIG (Handset)
12.3.1. Preparation
12.3.1.1. Equipment Required
• Frequency counter: It must be precise enough to measure intervals of 1 Hz (precision; ±4 ppm).
Hewlett Packard, 53131A is recommended.
• DC power: It must be able to output at least 1 A current under 2.4 V for handset.
• Digital multi-meter (DMM): It must be able to measure voltage and current.
• Oscilloscope
12.3.1.2. JIG and PC
• Serial JIG
JIG Cable: PQZZ1CD300E*
• PC which runs in DOS mode.
• Batch file CD-ROM for setting: PQZZTG2873BX
Note:
*: If you have the JIG Cable for TCD500 series
(PQZZ1CD505E), change the following values of resis-
tance.
12.3.2. PC Setting
12.3.2.1. Connections
Connect the DC Power or Battery to CHG- and CHG+ (handset).
Connect the JIG cable GND (black).
Connect the JIG cable UTX (yellow) and URX (red).
Note:
*: COM port names may vary depending on what your PC calls it.
Resistor Old value (kΩ) New value (kΩ)
R2 22 3.3
R3 22 3.3
R4 22 4.7
R7 4.7 10
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