KX-TS85GB, KX-TS85GW - Panasonic Telephone Service Manual (repair manual). Page 14

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14
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KX-TS85GB/KX-TS85GW
IC BLOCK DIAGRAM
TERMINAL GUIDE OF IC'S TRANSISTORS ANS DIODES
DC-Mask
AC-Impedance
Power Extraction
debounce
DTMF
Melody
CPU dilaler
Keyscan
DC/DC
Osci
Peak
Comp
Offset
Offset
Comp
Peak
Peak
Comp
Offset
Voice
switching
VPP
SS
VDD
AGND VSS
FT2
CBN
FT1
M1
M2
M3
M4
VSSA
LS1
LS2
RECI
RECV
RO
CM
R3
R2
R1
C4
C3
C2
C1
XTAL
CS2
CS1
CLK
DO
DI
LS
LI
ci
CS
R1
STB
HS
HF
HEAD
HEAD
FCI
DPn
LED
PQVIAS2525
PQWITS85GW
PQVTKSB564AC
PQVT2N6517CA
2SB1209
2SD1819ASTX
PQVDS1YB40F1
MA110
MA8030
PQVDSML210LT
Cathode
Anode
34
44
1
11
12
22
23
33
1
4
8
5
E
C
B
C
E
B
B
E
C
Cathode
Anode
Cathode
Anode
1SS119
1S2076
Cathode
Anode
MA700A
Cathode
Anode
1SS244, MA4043
MA4036
Cathode
Anode
MA4082
Cathode
Anode
PQVDS5688G
1
2
3
MA143
IC103
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