Panasonic KX-TCA151AXM Service Manual page 110

37.2. Operation
TP517
CN501
1
HOOK_SW
SW531
COL0 2
COL1 3
4
COL2
5
COL3
6
COL4
ROW0 7
ROW1 8
9
ROW2
10
ROW3
ROW4 11
ROW5 12
CS 13
14
RES
15
A0
D6(SCL) 16
D7(SI) 17
18 VDD1
VDD1
19 VDD2
VDD2
20
GND GND
LED4 21
LED3 22
23
LED2
24
LED5
1
SW530
TP513
TP512
TP516
TP515
4
TP514
SW525
TPLED4
TPLED3
TPLED2
7
TPLED5
SW524
*
SW523
EXIT
SW522
GREETING
SW521
TP507 TP508
CN502
R507 10K
22 TEMPS
21 C86
C501 0.47u KB
20 V0
C502 0.47u KB
19 V4
C503 0.47u KB
18 V3
C504 0.47u KB
17 V2
C505 0.47u KB
16 V1
C506 1u
15 CAP2-
14 CAP2+
C507 1u
13 CAP1+
C510 1u
12 CAP1-
C508 1u
11 CAP3+
C509 1u
10 VOUT
9 VSS
8 VDD
7 D7(SI)
6 D6(SCL)
5 E
4 RW
3 A0
2 RES
1 CS
2 3 X1 UP
SW529 SW528 SW527 SW526
5 6 X2 LEFT
SW520 SW515 SW510 SW505
8 9 X3 DOWN
SW519 SW514 SW509 SW504
0 # MUTE RIGHT
SW518 SW513 SW508 SW503
ANSWER SP_SW STOP CLEAR
SW517 SW512 SW507 SW502
SW532
M1 M2 M3 TALK
SW516 SW511 SW506 SW501
TP509 TP510 TP511
KX-TCD530AXM: SCHEMATIC DIAGRAM (BASE UNIT) Operation
N.M.
Q501 Q502 Q503 Q504