Table of Contents
Advertisement
Items
(K)* Frequency Offset Confir-
mation
(L)* Frequency Drift Confir-
mation
(M)*
Sensitivity Receiver
Confirmation
(N)* Power RAMP Confirma-
tion
(O) Audio Check and Confir-
mation
(P) SP phone Audio Check
and Confirmation
(Q) Charge Pump 3.0V Sup-
ply Confirmation
(R) Charge Pump 4.0V Sup-
ply Confirmation
(This Item is not applied)
Check
Point
-
Follow steps 1 to 3 of (I).
4.Confirm that the frequency Offset is < ± 50 kHz.
-
Follow steps 1 to 3 of (I).
4.Confirm that the frequency Drift is < ± 35 kHz/ms.
-
Follow steps 1 to 3 of (I).
4.Set DECT tester power to -88 dBm.
5.Confirm that the BER is < 1000 ppm.
-
Follow steps 1 to 3 of (I).
4.Confirm that Power RAMP is matching.
-
1. Link to BASE which is conected to Line Simulator.
2. Set line voltage to 48V and line current to 50mA.
3. Input -45dBm(600Ω)/1kHz to MIC of Handset.
Measure the Level at Line I/F and distortion level.
4. Confirm that the level is -3.5dBm ± 2 dBm and that the distortion level is <5% at
TEL Line (600Ω Load).
5. Input -20dBm(600Ω)/1kHz to Line I/F.
Measure the Level at Receiver of Handset and distortion level
(Receive volume set to second position from minimum).
6. Confirm that the level is -24dBm ± 2 dBm and that the distortion level is <5% at
Receiver (150Ω Load).
-
1. Link to Base which is connected to Line Simulator.
2. Set line voltage to 48V and line current to 50mA.
3. Set the handset off-hook using SP-Phone key.
4. Input -25 dBm(600Ω)/1KHz to Line I/F and measure Receiving level at SP+
and SP-.
5. Confirm that the level is -12 dBm ± 2 dBm and that the distortion level is < 5%.
(vol = 3)
CP3.0V
1. Confirm that the voltage between testpoint CP3.0V and GND is 3.0 ± 0.3.
CP4.0V
1. Confirm that the voltage between testpoint CP4.0V and GND is 4.0V ± 0.3V.
KX-TG2511AL/KX-TG2512AL/KX-TG2513AL/KX-TGA250AZ
Procedure
41
Check or
Replace Parts
IC1,
C802~C806,
C808~C814,
C819~C820,
C822,
C825~C827,
C834,
C860~C864,
L801~L804,
DA801,
R801~R808
IC1,
C802~C806,
C808~C814,
C819~C820,
C822,
C825~C827,
C834,
C860~C864,
L801~L804,
DA801,
R801~R808
IC1,
C802~C806,
C808~C814,
C819~C820,
C822,
C825~C827,
C834,
C860~C864,
L801~L804,
DA801,
R801~R808
IC1,
C802~C806,
C808~C814,
C819~C820,
C822,
C825~C827,
C834,
C860~C864,
L801~L804,
DA801,
R801~R808
IC1, C12, C96,
C97, R215,
R27, RA4,
C11, C13,
R28, D3, D4,
MIC, R73, R74
IC1, C12, C73,
D13, D14,
R73, R74,
MIC, C11,
C13, RA4,
R27, R28,
C96, C97,
R215, C72
C49, C52~C54
C50, C51, C55
Advertisement
Table of Contents
Troubleshooting
