Read Panasonic KX-TG7321CAC / KX-TGA731RUC Service Manual online
51
KX-TG7321CAC/KX-TGA731RUC
(J)* Modulation Check and
Adjustment
-
Follow steps 1 to 3 of (I).
4.Confirm that the B-Field Modulation is -370±30/ +370±30 kHz/div & Modulated
width 690 kHz using data type Fig 31.
width 690 kHz using data type Fig 31.
IC1,
C808~C814,
L802~L804,
C825, C834,
C819, IC801,
R107, R108,
C117, C118,
C841, C125,
C842, DA1,
C801~C804,
D801,D802,
C837, C826,
C822, C820,
C832, C833,
C822, C820,
C832, C833,
R801~R807
(K)* Frequency Offset Confir-
mation
-
Follow steps 1 to 3 of (I).
4.Confirm that the frequency Offset is < ± 50 kHz.
IC1,
C808~C814,
L802~L804,
C825, C834,
C819, IC801,
R107, R108,
C117, C118,
C841, C125,
C842, DA1,
C801~C804,
D801,D802,
C837, C826,
C822, C820,
C832, C833,
C822, C820,
C832, C833,
R801~R807
(L)* Frequency Drift Confir-
mation
-
Follow steps 1 to 3 of (I).
4.Confirm that the frequency Drift is < ± 35 kHz/ms.
IC1,
C808~C814,
L802~L804,
C825, C834,
C819, IC801,
R107, R108,
C117, C118,
C841, C125,
C842, DA1,
C801~C804,
D801,D802,
C837, C826,
C822, C820,
C832, C833,
C822, C820,
C832, C833,
R801~R807
(M)*
Sensitivity Receiver
Confirmation
-
Follow steps 1 to 3 of (I).
4.Set DECT tester power to -88 dBm.
5.Confirm that the BER is < 1000 ppm.
5.Confirm that the BER is < 1000 ppm.
IC1,
C808~C814,
L802~L804,
C825, C834,
C819, IC801,
R107, R108,
C117, C118,
C841, C125,
C842, DA1,
C801~C804,
D801,D802,
C837, C826,
C822, C820,
C832, C833,
C822, C820,
C832, C833,
R801~R807
Items
Check
Point
Procedure
Check or
Replace Parts
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