KX-TG6551CAM, KX-TGA650RUM, KX-TGA651RUM - Panasonic Telephone Service Manual (repair manual). Page 42

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42
KX-TG6551CAM/KX-TGA650RUM/KX-TGA651RUM
(I) DTMF Generator Check
-
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 -3.0 ± 2dBm.
5. Confirm that the low Group is -6.0 ± 2dBm.
R181, C184, 
Q161, D141
(J)*
Transmitted Power 
Confirmation
-
ANT 1
Remove the Antenna before starting step from 1 to 7.
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.
IC501, C805, 
C806, C810, 
C814, C811, 
C813, C812, 
L809, C825, 
C895, L897, 
C894, R806, 
C859, C896, 
DA801, DA802, 
C891, R891 
(K)*
Modulation Check
-
ANT 1
Follow steps 1 to 6 of (J).
7.Confirm that the B-Field Modulation is -330 ± 30/ +330± 30 kHz/div &
Modulated width   620 kHz using data type Fig31.
IC501, C805, 
C806, C810, 
C814, C811, 
C813, C812, 
L809, C825, 
C895, L897, 
C894, R806, 
C859, C896, 
DA801, DA802, 
C891, R891
(L)* Frequency Offset Check
-
ANT 1
Follow steps 1 to 6 of (J).
7.Confirm that the frequency offset is < ± 50 kHz.
IC501, C805, 
C806, C810, 
C814, C811, 
C813, C812, 
L809, C825, 
C895, L897, 
C894, R806, 
C859, C896, 
DA801, DA802, 
C891, R891, 
X501, C508, 
C509 
(M)*
Frequency Drift 
Confirmation
-
ANT 1
Follow steps 1 to 6 of (J).
7.Confirm that the frequency drift is < ± 35 kHz/ms.
IC501, C805, 
C806, C810, 
C814, C811, 
C813, C812, 
L809, C825, 
C895, L897, 
C894, R806, 
C859, C896, 
DA801, DA802, 
C891, R891
(N)*
Sensitivity Receiver 
Confirmation
-
ANT 1
Follow steps 1 to 6 of (J).
7.Set DECT tester power to -90 dBm.
8.Confirm that the BER is < 1000 ppm.
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 
Items
Check 
Point
Procedure
Check or 
Replace Parts

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