Adjustments (Base Unit And Charger Unit); Adjustment (Base Unit) - Panasonic KX-TCD410RUM Service Manual

14 ADJUSTMENTS (BASE UNIT AND CHARGER UNIT)

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.

Adjustment (Base Unit)

14.1. Adjustment (Base Unit)
Items
(A) 2.65V Supply
Confirmation
(B) 4.0V Supply
Confirmation
(C) VBACK Status
Confirmation
(D)* BBIC Confirmation
(E)* BBIC Clock Adjustment
(F)* Hookswitch Check with
DC Characteristics
KX-TCD410RU M / KX-TCD410R US / KX-TCD412R UM / KX-TCD412R US / KX-A141RU M / KX-A141RU S / KX-A142RU M / KX-A142RUS
Symptom
Adjustment
Point
- 1. Confirm that the voltage between TP187 and GND is 2.65V ± 0.2V.
- 1. Confirm that the voltage between TP91 and GND is 4.0V ± 0.2V.
- 1. Confirm that the voltage between J102 and GND is 2.65V ± 0.2V.
- 1. BBIC Confirmation (Execute the command "getchk").
2. Confirm the returned checksum value.
Connection of checksum value and program number is shown below.
TP1 1. Execute the command "deactmac".
2. Execute the command "conttx".
3. Input Command “rdeeprom_00_00_02”, then you can confirm the current value.
4. Adjust the frequency of TP1 executing the command "setfreq 00 xx (where xx
is the value)" so that the reading of the frequency counter is 10.368000MHz ±
3Hz.
- 1. Connect J1 (Telephone Socket) to Tel-simulator which is connected with 600
Ω.
2. Set line voltage to 48V at on-hook condition and line current to 40mA at off-
hook condition of nomal telephone.
3. Execute the command "hookoff"
4. Confirm that the line current is 40mA ± 5mA.
5. Execute the command "hookon".
6. Confirm that the line current is 0mA + 0.2mA.
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)
Procedure*
Remedy
Check or
Replace Parts
IC2,Q8,C23,
C24,C25,C27,
C36,C37,C38,
C46,C76,R33,
C44,D5,C39,
C41,R41,R42,
Q9,C40,D4,
X1,C32,C33
D4,C40,Q9,
R41,R42,C41,
D5,C69,C66,
C67,L8,IC3,
C65,C68,C61
IC2,Q8,C23,
C24,C25,C27,
C36,C37,C38,
C46,C76,R33,
C44,D5,C39,
C41,R41,R42,
Q9,C40,D4,
X1,C32,C33,
C45
IC2,X1,C32,
C33,IC4,R80,
R84,C88,C89,
R83
IC2,IC3,L1,
C48,X1,C32,
C33,C47
IC2,R7,R8,
R9,R10,R77,
Q2,Q3,D2,
C1,C2,C52