Panasonic KX-TG4221N Service Manual page 54

KX-TG4221N/KX-TG4222N/KX-TG4223N/KX-TG313SK/KX-TG4224N/KX-TG4225N/KX-TGA421N
12.5.1.2. Handset
First, operate the PC setting according to The Setting Method of JIG (P.48).
Then download the appropriate data according to the following procedures.
Items
EEPROM (IC3) Adjusted parameter data is
stored in memory.
(country version batch file,
default batch file, etc.)
Battery Monitor Check
Battery Low Confirmation
Battery Clock Adjustment
(X1)
Note:
(*2) WW: country code, XXX: revision number
"XXX" vary depending on the country version. You can find them in the batch file, PNZZ- mentioned in The Setting Method of
JIG (P.48).
1) Default batch file: Execute the command "default.bat".
2) Default batch file (remaining): Execute the command
"TGA421_DEF_RevXXX.bat". (*2)
3) Country version batch file: Execute the command
"TGA421_WW_RevXXX.bat".(*2)
4) Clock adjustment
5) 2.35 V setting and battery low detection
- 1) Apply 2.25 V between BATT+ and BATT-.
2) Execute the command
sendchar PAD
sendchar LED 0
sendchar CRX 0 1
sendchar AD1
It assumes that the return value is XX.
a) 6c XX
b) XX: 6A ~ 6B: Need to adjust
XX: 72 ~ 74: Need to adjust
Write AD value of 2.25 V to EEPROM.
ex) read data: XX = 6A, write data:YY = 6A
read data: XX =73, write data: YY = 73
EEPROM = 0009 (Low Voltage) write "YY"
Execute the command "wreeprom 00 09 01 YY".
EEPROM = 000A (No Voltage) write "YY - 1D"
Execute the command "xwreeprom 00 0A 01 ZZ".
Note:
No Voltage writing data limit is "00".
c) XX: 00 ~ 69: Reject
XX: 75 ~ FF: Reject
- 1) Apply 2.40 V between BATT+ and BATT-.
2) Confirm that there is no flashing of Battery lcon.
3) Apply 2.25 V ± 0.08 V between BATT+ and BATT-.
4) Confirm that there is flashing of Battery lcon.
CLK 1) Apply 2.6 V between BATT+ and BATT- with DC power.
2) Input Command "sendchar sfr", then you can confirm the current value.
3) Check X'tal Frequency. (10.368 MHz ± 100 Hz).
4) If the frequency is not 10.368 MHz ± 100 Hz, adjust the frequency of CLK exe-
cute in the command "sendchar sfr xx xx (where xx is the value)" so that the reading
of the frequency counter is 10.368000 MHz ± 5 Hz.
54
How to download/Required adjustment
71: No need to adjust