39
KX-PRW130W/KX-PRWA13W
9.1.9.
Bell Reception
9.1.9.1.
Base Unit
9.1.9.2.
Handset
Cross Reference:
Telephone Line Interface
(P.14)
Check Link
(P.32)
How to Check the Handset Speaker or Receiver
(P.61)
9.1.10.
Check TAM Operation
Cross Reference:
Power Supply Circuit
(P.13)
Note:
(*1) When replacing FLASH MEMORY (IC601), TAM data need to be written to it. Refer to
Base Unit
of
Things to Do after
Replacing IC or X'tal
(P.58)
When bell signal is coming, is there bell sound
s
ign
a
l
a
t BBIC (IC501:CIDINp, CIDINn)?
Check
a
round C10
3
, C104, C105, C106, C107,
C108, C109, C110, C111, C112, C12
3
, C124,
R101, R102, R10
3
, R104, R105, R106, R107, R108,
R109, R110, R111, R112, P101
NO
Does the bell sound from SPEAKER?
Check around SP+, SP- .
When bell signal coming, is there bell sound signal
at BBIC (IC1: (U8, V8)(U9, V9))?
NO
NO
YES
When bell signal coming, is there bell sound signal
at SP+, SP- ?
YES
Check BBIC (IC1), C36, C37.
NO
Check cable of SPEAKER and resistance value
of SPEAKER.
Check IC601 and BBIC (IC501) of Base Unit. (*1)
Is there a TAM icon on the Handset display?
Turn on the Answering System.
Check
Power Supply Circuit
.
NO
NO
YES
Is the voltage of VDD3 of Base Unit about 3.3 V
and VDD1 about 1.8 V?
YES
