KX-TCD400RUB
I
KX-TCD400RUC
I
KX-TCD400RUF
I
KX-A140RUB
I
KX-A140RUC
I
KX-A140RUF
11.6. Bell Reception
11.6.1. Base Unit
YES
When bell signal coming, is there bell signal at
NO
^
Check around R1 ~ R6, R29, R30, СЗ, C4.
BBIC (26, 27) ?
r YES
NO
^
Check around BBIC.
When bell signal coming, is there bell LED
signal at BBIC (44)?
When bell signal conning, is bell LED
switching on and off?
NO
Check around LED1, Q10, R68.
Note:
BBIC is IC2.
11.6.2. Handset
When bell signal coming, is there bell sound signal
at BBIC (41, 42)?
,
YES
When bell signal coming, is there bell sound signal
atTP1, TP2?
4r YES
Does bell sound from RECEIVER?
NO
Check link in C heck Link, and around BBIC.
NO
Check around R17, R20, СЮ, C11, C12,
C31, D6, D7.
NO
Replace with the new RECEIVER.
C ross Reference:
Telephone Line Interface (P.51)
Check Link (P.31)
Note:
BBIC is IC1.
34
Summary of Contents for KX-A140RUC
Page 48: ...817 19 BLOCK DIAGRAM BASE UNIT KX TCD400RUB RUC RUF BLOCK DIAGRAM BASE UNIT ...
Page 67: ...KX TCD400RUB I KX TCD400RUC I KX TCD400RUF I KX A140RUB I KX A140RUC I KX A140RUF 67 ...
Page 72: ...33 5 Memo kX TCD400RUB KX TCD400RUC KX TGD400RUF KX A140RUB KX A140RUC KX A140RUF 72 ...
Page 76: ... kX TCD400RUB I KX TCD400RUC KX TCD400RUF KX A140RUB KX A140RUC KX A140RUF 76 ...
Page 80: ...08 37 2 Flow Solder Side View KX A140RUB RUC RUF CIRCUIT BOARD HANDSET Flow Solder Side View ...