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KX-TGE240/242/243/244/245/260/262/263/264/270/272/273/274/275/TG454/TG465/TGEA20/TGA20
10.1.5.2. Handset
Cross Reference:
Power Supply Circuit/Reset Circuit (P.23)
Check the RF part (P.40)
Note:
Refer to Things to Do after Replacing X'tal (P.56)(P.62) for Handset.
*1 How to adjust the frequency of X1.
Check around Power Supply Circuit/Reset Circuit.
Does Handset link with Base Unit?
(Properly 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 Handset Test Mode?
Handset is OK. Check Base Unit.
YES
Check the RF part
Check the batteries.
*1
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