Panasonic KX-FP342CX

3.3V
0V
5V
0V
5V
0V
5V
0V
+5V
C310
Z0.1u
R303
18K
R305
2.2K
C303
6.3V 100u
C314
Z0.1u
SW352
31
42
R315
100
C316
K0.01u
R314
4.7K
SW353
31
42
R317
100
C317
K0.01u
R316
4.7K
+5V
CN303
1MICIN
2
3GND
C304
Z0.1u
R351
330
R352
6.8K
C354
6.3V 100u
C306
J100P
C302
Z0.1u
C308
J330P
C309
J330P
( )
NC
R304
R318
4.7
+5V
+5V
+5V
+5V
CN302
1 GND
2 +5VLCD
3 VO
4 RS
5 R/W
6 E
7 D0
8 D1
9 D2
10 D3
SW301
FAX/START
/SET
SW305
4
SW306
SW307
FLASH
SW308
7
SW309
2
SW310
5
SW311
0
SW312
REDIAL/
PAUSE
SW313
8
SW314
3
SW315
6
SW316
#
SW317
MUTE
SW318
9
SW319
COPY
SW321
PREV
SW326
MENU
SW329
AUTO ANSWER
SW330
ONE TOUCH 5
SW331
LOWER
SW333
SEARCH
SW334
PRINT
REPORT
SW335
ONE TOUCH 2
SW336
ONE TOUCH 3
( )
NC
D301
C352
K0.0068u
R353
22K
Q301
R354
150
R355
560K
R356
3.3K
C353
J330P
C351
K0.01u
R306
2.2K
C311
Z0.1u
( )
NC
R307
SW327
(+)
R312
LED301
NEW MESSAGES
CN301
1MICIN
2AG
3+5V
4DG
5
KSTART
6 KLATCH
7KRXD
8KTXD
9KSCLK
10RESET
+5V
IC301
30
RESET
31
SCLK
32
RXD
33
TXD
34
LATCH
35
START
42
KIN0
3
KIN1
7
KIN2
8
KIN3
11
KIN4
12
KIN5
13
KIN6
14
KIN7
43
KSL0
41
LED5
38
LED4
37
LED3
36
LED2
29
D7
28
D6
27
D5
26
D4
25
E
24
R/W
23
RS
22
LED1
19
XL13
40
VDD
17
VDD
44
KSL1
2
LED6
1
KSL2
5
XL8
10
KSL3
6
XL9
4
KSL4 XL12
15
9
XL10
16
XL11
18
GND
20
XL14
39
GND
21
XL15
+5V
R313
LED302
SW320
STOP
SW322
NEXT
SW324
RECORD
SW325
ERASE
SW328
HELP
SW332
ONE TOUCH 4
SW337
ONE TOUCH 1
R302
270
SW302
MONITOR
SW303
(-)
SW304
1
SW323
PLAY
MESSAGE
( )
C305
NC
R320
0
R321
0
R322
0
R323
0
R324
0
R325
0
R326
0
DOCUMENT
TOP SW
DOCUMENT
SET SW
TO DIGITAL
TO COB
TO MIC
MIC (+)
MIC (-)
TO DIGITAL
TO LCD
Not used
Not used
Not used
KX-FP342CX : OPERATION BOARD (PCB3)