Panasonic KX-TG6671B

37
KX-TG6671B/KX-TG6672B/KX-TGA660B
10.1.5.2. Portable
Cross Reference:
Power Supply Circuit/Reset Circuit (P.19)
Check the RF part (P.38)
Note:
*1 How to adjust +3.0V:
Execute the command "VDA"
Refer to Things to Do after Replacing IC or X'tal (P.60) for Portable.
*2 How to adjust the frequency of X1:
To see the frequency, execute the command “SFR“, then check the TP_CKM (IC1-57pin).
To adjust frequency, send command “SFR “until the frequency counter becomes13.824 MHz±55HZ.
Check around Power Supply Circuit/Reset Circuit.
Adjust +3.0V Vottage to 3.0V
Does Portable make link with Base Unit?
(Correct working unit)
Check around X1 and RF module and adjust
clock frequency.
NO
NO
NO
NO
Is the voltage of TP VBAT about 2.2~2.8 V?
Is the voltage of TP VDDC about 1.2 V?
YES
YES
YES
YES
Is the voltage of TP 3.0 V about 3.0 V?
Does the RF clock (CLK) oscillate: 13.824 MHz
in Portable Test Mode?
Portable is OK. Check Base Unit.
YES
OR
Check the RF part
Check the batteries.
*1
*2