Panasonic KX-TCD816UAS, Service Manual

Page: 28 / 101

Items Check
Point
Procedure Check or
Replace Parts
( K ) Frequency Offset Check - Follow steps 1 to 6 of (I) .
7.Confirm that the frequency offset is < ± 45kHz.
IC2, IC8, R124,
R125, C153,
C140, C141,
DA1, C142,
C143, C144, L3,
L4, R118, R119,
C135, R115,
R116, Q6,
C145, C147,
C149, C151,
C157, R123,
C158, C159,
C160, C161,
C162, C163,
C164, C136,
R117, R127,
C156, C154,
C155
(
L
) Frequency Dirft
Confirmation
- Follow steps 1 to 6 of
(I)
.
7.Confirm that the frequency drift is < ± 30kHz/ms.
IC2, IC8, R124,
R125, C153,
C140, C141,
DA1, C142,
C143, C144, L3,
L4, R118, R119,
C135, R115,
R116, Q6,
C145, C147,
C149, C151,
C157, R123,
C158, C159,
C160, C161,
C162, C163,
C164, C136,
R117, R127,
C156, C154,
C155
( M ) Sensitivity Receiver
Confirmation
- Follow steps 1 to 6 of (I) .
7.Set DECT tester power to -90dBm.
8.Confirm that the BER is < 1000ppm.
IC2, IC8, R124,
R125, C153,
C140, C141,
DA1, C142,
C143, C144, L3,
L4, R118, R119,
C135, R115,
R116, Q6,
C145, C147,
C149, C151,
C157, R123,
C158, C159,
C160, C161,
C162, C163,
C164, C136,
R117, R127,
C156, C154,
C155
( N ) Timing Confirmation - Follow steps 1 to 6 of (I) .
7.Confirm that the Timing accuracy is < ± 2.0ppm.
IC2, IC8, R124,
R125, C153,
C140, C141,
DA1, C142,
C143, C144, L3,
L4, R118, R119,
C135, R115,
R116, Q6,
C145, C147,
C149, C151,
C157, R123,
C158, C159,
C160, C161,
C162, C163,
C164, C136,
R117, R127,
C156, C154,
C155
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KX-TCD816UAS / KX-TCD816U AT / KX-TCA181UAS / KX-TCA181UAT