Items
Procedure
Check or
Replace Parts
(
N
)* Receive Audio Check
and Adjustment
1. Configure the DECT tester (CMD60) as follows;
<Setting>
•
Test mode: FP
•
Mode: Normal
•
PMID: 00000
2. Execute the command "testmode".
3. Initiate connection from DECT tester.
4. Execute the command "hookoff".
5. Execute the command "openau".
6. Connect J2 (Telephone Socket) to Tel-simulator which is connected with 600
Ω
.
7. Set line voltage to 48V and line current to 40mA.
8. Connect DECT tester to Tel-simulator.
9. Input audio signal (200mVrms/1kHz tone) to Tel-simulator.
<DECT tester setting>
•
Scramble: On
•
AF Gen. to ADPCM: Off
•
AF Meter Input: ADPCM
•
AF Gen. Frequency: 1000Hz
•
AF Gen. Level: 200mVrms
10. Confirm hearing tone: 300mVrms ± 100mVrms
11. Adjust audio level if required. (Make sure current value using "getmicgain". And
then execute the command "setmicgain xx", where xx is the value.)
12. Confirm that the B-field audio distortion with DECT tester is < 5 %.
IC6,IC4,L2,
C57,C61,C75,
C77,C78,C76,
C68,C69,R79,
R80,C63,C64,
R83,R84,C65,
L3,C79,C67,
C66,D10,C62,
R20,C14,D7,
R21,R22,R23,
R85,C15,C30,
R51,C92,R52,
C32,Q2,R12,
R13,Q4,R14,
R15,D6,C6,
C7,JMP9
(
O)*
Transmit Audio Check
and Adjustment
1. Configure the DECT tester (CMD60) as follows;
<Setting>
•
Test mode: FP
•
Mode: Normal
•
PMID: 00000
2. Execute the command "testmode".
3. Initiate connection from DECT tester.
4. Execute the command "hookoff".
5. Execute the command "openau".
6. Connect J2 (Telephone Socket) to Tel-simulator which is connected with 600
Ω
.
7. Set line voltage to 48V and line current to 40mA.
8. Input audio signal (30mVrms/1kHz tone) to DECT tester.
<DECT tester setting>
•
Scramble: On
•
AF Gen. to ADPCM: On
•
AF Meter Input: AF Voltm
•
AF Gen. Frequency: 1000Hz
•
AF Gen. Level: 30mVrms
9. Confirm hearing tone: 330mVrms ± 100mVrms.
10. Adjust audio level if required. (Make sure current value using "getspkrgain".
And then execute the command "setspkrgain xx", where xx is the value.)
11. Confirm that the audio distortion at 600R of Tel-simulator is < 5 %.
IC6,IC4,L2,
C57,C61,C75,
C77,C78,C76,
C68,C69,R79,
R80,C63,C64,
R83,R84,C65,
L3,C79,C67,
C66,D10,C62,
R20,C14,D7,
R21,R22,R23,
R85,C15,C30,
R51,C92,R52,
C32,Q2,R12,
R13,Q4,R14,
R15,D6,C6,
C7,JMP9
(
P
)
Charging Check
1. Connect Charge Contact 12
Ω
/2W resistor between and charge-.
2. Measure and confirm voltage across the resistor is 2.3V ± 0.2V.
D4,R43,R44
Note:
After the measuring, sock up the solder of TP.
*:
PC Setting
(P.43) is required beforehand.
The connection of adjustment equipment are as shown in
Adjustment Standard (Base Unit)
(P.49).
48
KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF /
