Panasonic KX-TCD510ALV Service Manual page 51

If your unit have below symptoms, adjust or confirm each item using remedy column from the
table.
The base unit does not respond to a call from handset.
The base unit does not transmit or the transmit frequency is off.
The transmit frequency is off.
The transmit power output is low, and the operating distance between
base unit and handset is less than normal.
The reception sensitivity of base unit is low with noise.
The transmit level is high or low.
The reception level is high or low.
The unit does not link.
The unit cannot charge.
TAM does not work.
* : Refer to ()
14.1. Adjustment (Base Unit)
Please follow the items below when BBIC or EEPROM or FLASH ROM are replaced.
Items
(A) 4.0V Supply
Confirmation
(B) 3.0V Supply
Confirmation
Symptom
Adjustment
Point
1. Confirm that the voltage between TP14 and GND is 4.0V ± 0.2V.
TP14
1. Confirm that the voltage between TP22 and GND is 3.0V ± 0.2V.
TP22
Procedure
51
Remedy*
Make adjustments in item
(I)~(O).
Make adjustments in item
(I)~(L), (N).
Make adjustments in item
(I)~(L), (N).
Make confirmation in item
Make confirmation in item
Make confirmation in item
Make confirmation in item
Make adjustments in item
Make confirmation in item
Make confirmation in item
Check
Replace
CN4,
C113,
C1,
Q2,
R13,