Panasonic KX-TG8021BXS, Service Manual

Page: 47 / 101

47
KX-TG8021BXS/KX-TG8021BXT/KX-TGA800BXS/KX-TGA800BXT
( M )* Frequency Drift Confir-
mation
-
ANTI_TP
Follow steps 1 to 6 of (J) .
7.Confirm that the frequency drift is < ± 20 kHz/ms.
IC7, L7, C117,
C118, C124,
C125, R106,
R109,DA1,
R802~R807,
C837, C826,
C822, C820,
C832, C833,
C123, C74, Q9,
C617~C621,
C65, IC801,
D801, D802,
C801~C804,
C808~C814,
L802~L804,
C819, C834,
C825
( N )* Sensitivity Receiver
Confirmation
-
ANTI_TP
Follow steps 1 to 6 of (J) .
7.Set DECT tester power to -90 dBm.
8.Confirm that the BER is < 1000 ppm.
IC7, L7, C117,
C118, C124,
C125, R106,
R109,DA1,
R802~R807,
C837, C826,
C822, C820,
C832, C833,
C123, C74, Q9,
C617~C621,
C65, IC801,
D801, D802,
C801~C804,
C808~C814,
L802~L804,
C819, C834,
C825
( O )* Timing Confirmation -
ANTI_TP
Follow steps 1 to 6 of (J) .
7.Confirm that the Timing accuracy is
• ± 5.0 ppm (When adjust the frequency of CLK in item (G) ).
• ± 15 ppm (When do not adjust the frequency of CLK in item (A) ).
IC7, L7, C117,
C118, C124,
C125, R106,
R109,DA1,
R802~R807,
C837, C826,
C822, C820,
C832, C833,
C123, C74, Q9,
C617~C621,
C65, IC801,
D801, D802,
C801~C804,
C808~C814,
L802~L804,
C819, C834,
C825
( P )* Power RAMP Confirma-
tion
- Follow steps 1 to 6 of (J) .
7.Confirm that Power RAMP is matching.
IC7, L7, C117,
C118, C124,
C125, R106,
R109,DA1,
R802~R807,
C837, C826,
C822, C820,
C832, C833,
C123, C74, Q9,
C617~C621,
C65, IC801,
D801, D802,
C801~C804,
C808~C814,
L802~L804,
C819, C834,
C825
Items Check
Point
Procedure Check or
Replace Parts