Panasonic KX-TCD410ALM Service Manual page 40

Items
(N) Receive Audio
* Check and
Adjustment
1. Configure the DECT tester (CMD60) as follows;
<Setting>
-Test mode: FP
-Mode: Normal
-PMID: 0000
2. Execute the command "testmode".
3. Initiate connection from DECT tester.
4. Execute the command "hookoff".
5. Execute the command "openau".
6. Connect J1 (Telephone Socket) to Tel-simulator.
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: 330mVrms ± 80mVrms
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 %.
Procedure
40
Check o
Replac
Parts
IC2, C2
R31,
C20, C1
R18,
R16, D3,
Q2, R7, R
Q3, R9, R
D2, C1, C
R77, IC3,
C43, C7
C75,
C69, C4
C72,
C66, C6
C76,
C57, C73
DA1, R6
R67,
C55, C5
R78,
R79, C5
C58,
C86, R3