KX-TG6541RUB, KX-TGA651RUB, KX-TGA405RUB - Panasonic Telephone Service Manual (repair manual). Page 65

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First, operate the PC setting according to The Setting Method of JIG (Base Unit) (P.54).
Then download the appropriate data according to the following procedures.

(*3) XXX: country code, YYY: revision number.
“XXX” and “YYY” vary depending on the country version. You can find them in the batch file, PNZZ- mentioned in The Setting
Method of JIG (Base Unit) (P.54).

Items

How to download/Required adjustment

EEPROM (IC611)

Adjusted parameter data is stored in memory.
(country version batch file, default batch file,
etc.)

1) Change the address “0000” of EEPROM to “22” to download
the data.
2) Default batch file: Execute the command
“TGA405EURUrevYYY.bat. (*3)”.
3) Clock adjustment

X'tal (X501)

System clock

Clock adjustment data is in EEPROM, adjust the data again
after replacing it.
1) Apply 6.5V between DCP ad DCM with DC power.
2) Input Command "sendchar sfr", then you can confirm the cur-
rent value.
3) Check X'tal Frequency.(13.824 MHz ± 100 Hz).
4) If the frequency is not 13.824 MHz ± 100 Hz, adjust the fre-
quency of CLK executing the command "sendchar sfr xx xx
(where xx is the value)" so that the reading of the frequency
counter is 13.824000 MHz ± 15 Hz.