6-4. SCHEMATIC DIAGRAM – BASE UNIT (2/2) SECTION –
• See page 20 for Printed Wiring Board.
15k
0.01
B
10k
47p
47k
220k
140k
33k
L204
68nH
R966
22
C902
330
10V
(Page 22)
PH101
RINGER
DETECT
RING DET
C942
AMP
47p
C948
47p
47p
AMP
47
C931
47p
47
C968
47p
R931
4.7k
C969
0.001
R929
C970
4.7k
0.001
C933
47p
AMP
47
AMP
47
47
C932
47p
PH102
EXT OFF HOOK DETECT
HOOK ON/OFF
CONTROL
RX MUTE
47p
47p
C925
PROTECT
47p
TX MUTE
C917
47p
47p
C927
47p
23
23
SPP-S9000/S9001
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