Panasonic KX-TG6561BXT Service Manual page 42

KX-TG6561BXT/KX-TGA651BXT
Items
(I) DTMF Generator Check
(J)* Transmitted Power
Confirmation
(K)* Modulation Check
(L)* Frequency Offset Check
(M)* Frequency Drift
Confirmation
(N)* Sensitivity Receiver
Confirmation
Check
Point
1. Connect Telephone Socket to DTMF tester. (Load=600 Ω)
-
2. Link Handset and push dial key.
3. Confirm DTMF character.
4. Confirm that the high Group is -6.0 ± 2dBm.
5. Confirm that the low Group is -8.0 ± 2dBm.
- Remove the Antenna before starting step from 1 to 7.
ANT 1 1. Configure the DECT tester (CMD60) as follows;
<Setting>
• Test mode: FP
• Traffic Carrier: 5
• Traffic Slot: 4
• Mode: Loopback
• PMID: 00000
• PACKET: PP32Z
• RF LEVEL = -70 dBm.
* Do the sequence 2 to 5 is 14 second.
2. Execute the command "sendchar TST".
3. Execute the command "sendchar dmv 2 2".
4. Check that "Signalling Status" has been set to "Locked", then press "ACCEPT
RFPI".
5. Initiate connection from Dect tester ("set up connect")
6. Execute the command "ANT1".
7. Confirm that the NTP value at ANT is 18.5 dBm ~ 23.5 dBm.
- Follow steps 1 to 6 of (J).
ANT 1 7.Confirm that the B-Field Modulation is -330 ± 30/ +330± 30 kHz/div &
Modulated width
- Follow steps 1 to 6 of (J).
ANT 1 7.Confirm that the frequency offset is < ± 50 kHz.
- Follow steps 1 to 6 of (J).
ANT 1 7.Confirm that the frequency drift is < ± 35 kHz/ms.
- Follow steps 1 to 6 of (J).
ANT 1 7.Set DECT tester power to -90 dBm.
8.Confirm that the BER is < 1000 ppm.
Procedure
620 kHz using data type Fig31.
42
Check or
Replace Parts
R181, C184,
Q161, D141
IC501, C805,
C806, C810,
C814, C811,
C813, C812,
L809, C825,
C895, L897,
C894, R806,
C859, C896,
DA801, DA802,
C891, R891
IC501, C805,
C806, C810,
C814, C811,
C813, C812,
L809, C825,
C895, L897,
C894, R806,
C859, C896,
DA801, DA802,
C891, R891
IC501, C805,
C806, C810,
C814, C811,
C813, C812,
L809, C825,
C895, L897,
C894, R806,
C859, C896,
DA801, DA802,
C891, R891,
X501, C508,
C509
IC501, C805,
C806, C810,
C814, C811,
C813, C812,
L809, C825,
C895, L897,
C894, R806,
C859, C896,
DA801, DA802,
C891, R891
IC501, C805,
C806, C810,
C814, C811,
C813, C812,
L809, C825,
C895, L897,
C894, R806,
C859, C896,
DA801, DA802,
C891, R891,
C820, C863,
C826, C822,
C827, R807,
R892, C852