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Adjustment Standard (Base Unit) - Panasonic KX-TCD420NZM Service Manual

Digital cordless answering system, metalic gray version

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Items
(O)
Transmit Audio
*
Check and
Adjustment
(P) Charging Check
Note:
After the measuring, sock up the solder of TP.
* :
PC Setting
() is required beforehand.
The connection of adjustment equipment are as shown in

14.2. Adjustment Standard (Base Unit)

When connecting the Simulator Equipments for checking, please refer to below.
Adjustment
Point
1. Configure the DECT tester (CMD60) as follows;
ANT
<Setting>
J2
-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 J2 (Telephone Socket) to Tel-simulator which is connected with 600
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: 880mVrms ± 150mVrms.
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 %.
-
1. Connect Charge Contact 12
2. Measure and confirm voltage across the regigster is 2.3V ± 0.2V.
Procedure
/2W register between charge+ and charge-.
Adjustment Standard (Base Unit)
46
Check
IC6,IC4,L2
C57,C61,C7
C77,C78,C7
C68,C69,R7
.
R80,C63,C6
R83,R84,C6
L3,C79,C67
C66,D10,C6
R20,C14,D7
R21,R22,R2
R85,C15,C3
R51,C92,R5
C32,Q2,R1
R13,Q4,R1
R15,D6,C6
D4,R43,R4
().

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