Panasonic KX-TCD450RUM / KX-A145RUM / KX-TCD450RUT / KX-A145RUT Service Manual ▷ View online
11.7. Bell Reception
Cross Reference:
Telephone Line Interface (P.60)
Check Link (P.38)
Note:
BBIC is IC1.
11.7.1. Base Unit
Note:
BBIC is IC2.
11.7.2. Handset
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KX-TCD450RUM / KX-A145RUM / KX-TCD450R UT / KX-A145RUT
12 CHECK PROCEDURE (BASE UNIT)
12.1. Preparation
12.1.1. Equipment Required
·
DECT tester: Rohde & Schwarz, CMD 60 is recommended.
·
Frequency counter: it must be precise to be able to measure 1Hz (precision; ±4ppm).
Hewlett Packard, 53131A is recommended.
·
DC power: it must be able to output at least 1A current under 9V.
·
Digital multi-meter (DMM): it must be able to measure voltage and current.
·
Oscilloscope
12.1.2. JIGs and PC
·
EEPROM serial JIGs
1. I2C PCB: PQZZTCD705BX
2. RS232C cable: PQZZ1CD705BX
3. Clip cable: PQZZ2CD705BX
4. DC cable: PQZZ3CD705BX
·
PC which runs in DOS mode
·
Batch file for setting: PQZZTCD450RU
12.2. PC Setting
12.2.1. Connections
12.2.2. PC Setting
1. Open a window of MS-DOS mode from the start-up menu.
2. Change a directory to the one with “RTX_COM” contained.
3. Type “SET RTX_COM=1” from the keyboard (when COM port 1 is used for the connection).
4. Type “doskey”.
Note:
See the table below for frequently used commands.
Command name
Function
Example
rdeeprom
Read the data of EEPROM
Type “rdeeprom 00 00 FF”, and the data from
address “00 00” to “FF” is read out.
address “00 00” to “FF” is read out.
readid
Read ID (RFPI)
Type “readid”, and the registered ID is read out.
writeid
Write ID (RFPI)
Type “writeid 00 18 E0 0E 98”, and the ID “0018 E0 0E
98” is written.
98” is written.
setfreq
adjust Frequency of RFIC
Type “setfreq nn nn”.
hookoff
off-hook mode on Base
Type “hookoff”.
hookon
on-hook mode on Base
Type “hookon”.
Getchk
Read checksum
Type “getchk”.
Wreeprom
write eeprom
Type "wreeprom 01 23 45". "01 23" is address and "45"
is data to be written.
is data to be written.
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KX-TCD450RUM / KX-A145RUM / KX-TCD450R UT / KX-A145RUT
13 CHECK PROCEDURE (HANDSET)
13.1. Preparation
13.1.1. Equipment Required
·
DECT tester: Rohde & Schwarz, CMD 60 is recommended.
·
Frequency counter: it must be precise to be able to measure 1Hz (precision; ±4ppm).
Hewlett Packard, 53131A is recommended.
·
DC power: it must be able to output at least 1A current under 2.4V for Handset, 9V for JIG.
·
Digital multi-meter (DMM): it must be able to measure voltage and current.
·
Oscilloscope
13.1.2. JIGs and PC
·
EEPROM serial JIGs
1. I2C PCB: PQZZTCD705BX
2. RS232C cable: PQZZ1CD705BX
3. Clip cable: PQZZ2CD705BX
4. DC cable: PQZZ3CD705BX
·
PC which runs in DOS mode.
·
Batch file for PC setting: PQZZTCD450RU
13.2. PC Setting
13.2.1. Connections
13.2.2. PC Setting
1. Open a window of MS-DOS mode from the start-up menu.
2. Change a directory to the one with “RTX_COM” contained.
3. Type “SET RTX_COM=1” from the keyboard (when COM port 1 is used for the connection).
4. Type “doskey”.
Note:
See the table below for frequently used commands.
Command name
Function
Example
rdeeprom
Read the data of EEPROM
Type “rdeeprom 00 00 FF”, and the data from
address “00 00” to “FF” is read out.
address “00 00” to “FF” is read out.
readid
Read ID (RFPI)
Type “readid”, and the registered ID is read out.
writeid
Write ID (RFPI)
Type “writeid 00 18 E0 0E 98”, and the ID “0018 E0 0E
98” is written.
98” is written.
setfreq
adjust Frequency of RFIC
Type “setfreq nn nn”.
Getchk
Read checksum
Type “getchk”.
Wreeprom
write eeprom
Type "wreeprom 01 23 45". "01 23" is address and "45"
is data to be written.
is data to be written.
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KX-TCD450RUM / KX-A145RUM / KX-TCD450R UT / KX-A145RUT
14 ADJUSTMENTS (BASE UNIT AND CHARGER UNIT)
If your unit have below symptoms, adjust or confirm each item using remedy column from the table.
Symptom
Remedy*
The base unit does not respond to a call from handset.
Make adjustments in item (A)~(F), (I)~(M)
The base unit does not transmit or the transmit frequency is off.
Make adjustments in item (A)~(E), (H)~(J), (L)
The transmit frequency is off.
Make confirmation in item (A)~(E), (H)~(J), (L)
The transmit power output is low, and the operating distance between base unit and handset is
less than normal.
less than normal.
Make confirmation in item (H), (K)
The reception sensitivity of base unit is low with noise.
Make confirmation in item (K)
The transmit level is high or low.
Make adjustments in item (O)
The reception level is high or low.
Make adjustments in item (N)
The unit does not link.
Make confirmation in item (A)~(M)
The unit cannot charge.
Make confirmation in item (P)
* : Refer to Adjustment (Base Unit) (P.44)
14.1. Adjustment (Base Unit)
Please follow the items below when BBIC or EEPROM or FLASH ROM are replaced.
Items
Adjustment
Point
Procedure
Check or
Replace Parts
(A)
2.65V Supply
Confirmation
-
1.
Confirm that the voltage between TP187 and GND is 2.65V ± 0.2V.
IC2,Q8,C23,
C24,C25,C27,
C36,C37,C38,
C46,C76,R33,
C36,C37,C38,
C46,C76,R33,
C44,D5,C39,
C41,R41,R42,
Q9,C40,D4,
X1,C32,C33
(B)
4.0V Supply
Confirmation
-
1.
Confirm that the voltage between TP91 and GND is 4.0V ± 0.2V.
D4,C40,Q9,
R41,R42,C41,
D5,C69,C66,
C67,L8,IC3,
C65,C68,C61
(C)
VBACK Status
Confirmation
-
1.
Confirm that the voltage between J102 and GND is 2.65V ± 0.2V.
IC2,Q8,C23,
C24,C25,C27,
C36,C37,C38,
C46,C76,R33,
C36,C37,C38,
C46,C76,R33,
C44,D5,C39,
C41,R41,R42,
Q9,C40,D4,
X1,C32,C33,
C45
(D)*
BBIC Confirmation
-
1.
BBIC Confirmation (Execute the command "getchk").
2.
Confirm the returned checksum value.
Connection of checksum value and program number is shown below.
IC2,X1,C32,
C33,IC4,R80,
R84,C88,C89,
R83
(E)* BBIC Clock Adjustment
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.
is the value)" so that the reading of the frequency counter is 10.368000MHz ±
3Hz.
IC2,IC3,L1,
C48,X1,C32,
C33,C47
(F)* Hookswitch Check with
DC Characteristics
-
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.
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.
IC2,R7,R8,
R9,R10,R77,
Q2,Q3,D2,
C1,C2,C52
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KX-TCD450RUM / KX-A145RUM / KX-TCD450R UT / KX-A145RUT
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