Panasonic KX-TG6421RUC / KX-TG6421RUM / KX-TG6421RUT / KX-TG6422RU1 / KX-TGA641RUC / KX-TGA641RUM / KX-TGA641RUT Service Manual ▷ View online
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KX-TG6421RUC/KX-TG6421RUM/KX-TG6421RUT/KX-TG6422RU1/KX-TGA641RUC/KX-TGA641RUM/KX-TGA641RUT
10.1.2. Handset
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KX-TG6421RUC/KX-TG6421RUM/KX-TG6421RUT/KX-TG6422RU1/KX-TGA641RUC/KX-TGA641RUM/KX-TGA641RUT
10.1.3. Charger Unit
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KX-TG6421RUC/KX-TG6421RUM/KX-TG6421RUT/KX-TG6422RU1/KX-TGA641RUC/KX-TGA641RUM/KX-TGA641RUT
10.2. How to Replace the Handset LCD
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KX-TG6421RUC/KX-TG6421RUM/KX-TG6421RUT/KX-TG6422RU1/KX-TGA641RUC/KX-TGA641RUM/KX-TGA641RUT
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.35)
Troubleshooting Guide (P.35)
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)
• 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.47).
<Preparation>
• Serial JIG cable: PQZZ1CD300E*
• PC which runs in DOS mode
• Batch file CD-ROM for setting: PNZZTG6421RU
• PC which runs in DOS mode
• Batch file CD-ROM for setting: PNZZTG6421RU
Note:
*: If you have the JIG Cable for TCD500 series
(PQZZ1CD505E), change the following values of resis-
tance. Then you can use it as a JIG Cable for both TCD300
and TCD500 series. (It is an upper compatible JIG Cable.)
(PQZZ1CD505E), change the following values of resis-
tance. Then you can use it as a JIG Cable for both TCD300
and TCD500 series. (It is an upper compatible JIG Cable.)
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.
Note:
*: COM port names may vary depending on what your PC calls it.
Resistor
Old value (k
Ω) New value (kΩ)
R2
22
3.3
R3
22
3.3
R4
22
4.7
R7
4.7
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