36
KX-PRL260/KX-PRL262/KX-PRD260/KX-PRD262/KX-PRLA20
10.1.4.3. Charger Unit
Cross Reference:
Charge Circuit
(P.23)
10.1.5.
Check Link
10.1.5.1. Base Unit
Cross Reference:
Power Supply Circuit/Reset Circuit
(P.14)
Check the RF part
(P.38)
Note:
Refer to
Things to Do after Replacing IC or X'tal
(P.51)(P.57) for Base Unit.
*1 How to adjust the frequency of X501:
To see the frequency, execute the command “SFR“, then check the TP_CKM (IC501-57pin).
To adjust frequency, send command “SFR
“until the frequency counter becomes10.368 MHZ±55 HZ.
Check Charge Circuit of Charger Unit.
Check Handset.
Plug in the AC Power source.
Charge Handset on Charger Unit.
Is the voltage of two charge contacts about
5.5 V or more?
OK
NO
Check Charge Contacts at Charger Unit
from mechanical point of view.
YES
Check around Power Supply Circuit.
Does Base Unit connect to the properly working
Handset?
Check around X501 and RF module and adjust
clock frequency.
NO
NO
NO
NO
YES
YES
Is the voltage of VDD3 about 3.0 V?
Check the RF part
Does the RF clock (CLK) oscillate at 10.368 MHz in
Base Unit Test Mode?
YES
Is the voltage of VDD1 about 1.8 V?
YES
Base Unit is OK. Check Handset.
*1
