Tuning Instructions; Watchdog Activation; Battery Voltage Calibration; Tx-Power Level Adjustment - Benefon DELTA TDP-40-TN2 Service Manual

5.0 TUNING INSTRUCTIONS

Tuning Instructions
Necessary equipment: Local adapter, Local box, radio communication tester, multi-
meter.

5.0.1 Watchdog Activation

This operation will reset all settings !! Perform only when changing CPU.
- Connect I201 pin 25 (MODB) to ground and turn power ON. Remove the
jumper and turn the power OFF.
- Check: Local 11 # cop test.
If result is WD FAIL or the phone jams, the activation must be repeated.
- Local 0 #

5.0.2 Battery Voltage Calibration

- Adjust the operating voltage to 6.5 V, measuring from the OS-module battery
contacts.
- Local 214 #, check that "BT65V" is in the display.
- Local 0 #.

5.0.3 TX-Power Level Adjustment

- Local 0 #, 31 #, 39 #, and use the +/- keys to adjust the power to 180 mW
(22.6 dBm), and confirm with the F key; adjust with the +/- keys to 1.2 W (30.8
dBm), and confirm with the F key.
- Check that the current consumption is less than 900 mA.
- Local 0 #.

5.0.4 Frequency Adjustment

- Local 36 #, 31 # LTXON, 45* AFCOFF, 452 #, use the +/- keys to adjust the
frequency as close as possible to 455.225 MHz, and confirm with the F key.
- The adjustment can also be done by entering a 5 digit value and saving it with
the F key.
If the tuning value needs to be changed more than 2500 units, the TCXO must
also be tuned.
- Local 0 #.
TDP-40E5_fm5.fm
Product: TDP-40-TN2 (Delta) /
28.1.1999
Tuning Instructions
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