Check And Adjust Frequency - Panasonic KX-TH1211B Service Manual

12.2.

Check and Adjust Frequency

12.2.1. Preparation
Equipment: Frequency counter
Check Point for measurement: BCK
Checking tolerance: 13.824 MHz ± 100 Hz (Base Unit)/13.824 MHz ± 100 Hz (Handset)
12.2.2. Check and Adjust Frequency (Base Unit_DECT)
Connect U-ART Jig to P.C.B. and Power on. Send command as follows by PC.
1. Set up base unit in TEST mode as shown in the following table.
2. Check BCK frequency, referring to Base Unit Reference Drawing (P.97).
If the BCK frequency is out of the checking tolerance (± 100 Hz), adjust to Adjustment tolerance (± 30 Hz).
3. Check MAC address and write if it is needed.
Note:
: Enter key
: Space key
(*1) MAC Address is printed on a label which is attached to the unit.
Cross Reference:
Base Unit Reference Drawing (P.97)
12.2.3. Check and Adjust Frequency (Handset)
1. Set DC power supply to 2.6 V.
2. Set up handset in TEST mode (Adjustment flow).
3. Press [1] key to Adjust Crystal mode ("Clock Adj." is displayed on LCD). Check BCK frequency.
4. If the BCK frequency is out of the checking tolerance (± 100 Hz), adjust to Adjustment tolelance (± 30 Hz) by pressing [ ] or
[ ] key.
Adjustment Tolerance: 13.824 MHz ± 30 Hz
5. Press [TALK] key to write the new frequency factor in EEPROM.
6. Turn the power off. Then this value is available.
Cross Reference:
Adjustment Mode for Handset (P.55)
95
KX-TH1211B/KX-TH1212B/KX-TGA930T