Panasonic KX-TD7685 Service Manual page 44

KX-TD7685
11.1.4. Adjustment for RF Clock
1. Run Test command "RF clock (RFC)".
2. Measure RF clock frequency at test point SYRI by frequency counter. (Refer to 14.1 Printed Circuit Board of Hand-
set(Main).)
3. Adjust RF clock within 10,368.000kHz +/- 10Hz by Test command "frequency trimming(SFR)".
Note: Accuracy of clock frequency is important.
Cross Reference:
"RF clock (RFC)", "frequency trimming(SFR)": 7.3.1. Select From Command Menu_(B), (C)
11.1.5. Adjustment for Battery Low Detection
1. Supply voltage DC3.5V to Handset.
2. Turn off all LEDs, and then wait for 3 seconds.
3. Run Test command "AD1". Return value is XX.
4. Run Test command "WB2 XX".
5. Run Test command "WB4 XX".
6. Run Test command "WB3 YY". (YY=XX-09(hex)
Cross Reference:
"AD1": 7.3.1. Select From Command Menu _(D)
"WB2 XX", "WB4 XX", "WB3 YY": 7.3.2. Input The Command Directly Menu _(A), (C), (B)
Example: XX=2F, YY=26)
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