Measurements And Adjustments; Things To Do After Replacing Ic - Panasonic KX-FG2452CX Service Manual

15 Measurements and Adjustments

15.1. Things to Do after Replacing IC

15.1.1. X201 (Handset RF) Check
Equipment: Frequency counter
Check Point for measurement: BCK (Handset)
Checking tolerance: 13.824MHz ± 100Hz (Handset)
15.1.1.1. Check and Adjust X201 (Handset RF) Frequency
1. Set DC power supply to 2.6V.
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 (± 100Hz), adjust to Adjustment tolelance (± 30Hz) by pressing [ ] or [ ]
key.
Adjustment Tolerance: 13.824MHz ± 30Hz
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 Flow Chart for Handset (P.201)
15.1.1.2. X801 (Base RF Check)
Equipment: Frequency counter
Check Point for measurement: BCK (Base)
Checking tolerance: 13.824 MHz ± 100 Hz (Base)
15.1.1.3. Check and Adjust X801 (Base RF) Frequency
1. Set up Base Unit in TEST mode. (CORDLESS TEST)
2. Press [SET] key and select "3. SND Data mode" by pressing [ ] key.
3. Press the [SET] key 2 times.
Adjustment Tolerance: 13.824MHz ± 30Hz
4. If the BCK frequency is out of the checking tolerance (± 100Hz), adjust to Adjustment tolelance (± 30Hz) by follows;
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KX-FG2452CX