Panasonic KX-TCD410ALM Service Manual page 35

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.
* : Refer to Adjustment (Base Unit)
14.1. Adjustment (Base Unit)
Please follow the items below when BBIC or EEPROM are replaced.
Items
(A) 2.65V Supply
Confirmation
Symptom
()
1. Confirm that the voltage between TP187 and GND is 2.65V ± 0.2V.
Procedure
35
Remedy*
Make adjustments in item (A)~(F
(I)~(M)
Make adjustments in item (A)~(E
(H)~(J), (L)
Make confirmation in item (A)~(E
(H)~(J), (L)
Make confirmation in item (H), (K
Make confirmation in item (K)
Make adjustments in item (O)
Make adjustments in item (N)
Make confirmation in item (A)~(M
Make confirmation in item (P)
Check o
Replac
Parts
IC2, Q8, C
C24, C2
C26,
C27, C3
R33,
R36, D5,
R41, R42,
C40, D4,
C32, C3
C36,
C37