Panasonic KX-FHD332C Service Manual page 238

3.3V
TO DIGITAL
0V
RESET 10
KSCLK 9
KTXD 8
KRXD 7
KLATCH 6
KSTART 5
DG 4
+5V 3
AG 2
+5V
MICIN 1
CN301
TO DIGITAL
CN303
MICIN 1
2
GND 3
Not used
FAX/START
1
/SET
SW301 SW304
MONITOR
4
SW302 SW305
SW306
(-)
FLASH
SW303 SW307
7
SW308
Not used
C353
J330P
R355
560K
Q301
R353
22K
5V
0V
2 3 COPY RECORD
SW309 SW314 SW319 SW324
5 6
STOP ERASE
SW310 SW315 SW320 SW325
0 # PREV
MENU
SW311 SW316 SW321 SW326
REDIAL/
MUTE NEXT
PAUSE
SW312 SW317 SW322
PLAY
(+)
8 9 MESSAGE
SW313 SW318 SW323 SW327
+5V
TO MIC
C352
MIC (+)
K0.0068u
MIC (-)
30
RESET
31
SCLK
32
RXD
R302 270 33
TXD
34
LATCH
35
START
42
KIN0
3
KIN1
7
KIN2
8
KIN3
11
KIN4
12
KIN5
13
KIN6
14
KIN7
43
KSL0
44
HELP CALL DISPLAY
KSL1
1
KSL2
10
KSL3
4
SW328 SW333 KSL4
9
XL10
18
GND
39
JUNK FAX
GND
PROHIBITOR
AUTO ANSWER
SW329 SW334
ONE TOUCH 5
ONE TOUCH 2
SW330 SW335
LOWER ONE TOUCH 3
SW331 SW336
ONE TOUCH 4 ONE TOUCH 1
SW332 SW337
5V
0V
+5V
IC301
17
VDD
40
VDD
19
XL13
22
LED1
23
RS
24
R/W
25
E
26
D4
27
D5
28
D6
29
D7
36
LED2
LED ON : 0V
37
LED3
38
LED OFF : 5V
LED4
41
LED5
2
LED6
5
XL8
6
XL9
15
XL12
16
XL11
20
XL14
21
XL15
R312
5V
270
0V
+5V
+5V
SW353 SW352
R317 R315
3 1 3 1
4 2 4 2
100 100
DOCUMENT DOCUMENT
SET SW
TOP SW
+5V
R318
4.7
TO LCD
1 GND
+5VLCD
2
VO
3
4 RS
5 R/W
TO COB
E
6
D0
7
8 D1
D2
9
D3
10
CN302
+5V
OPEN LCR
LED302
R313
220
+5V
NEW MESSAGES
LED301
Not used
KX-FHD332C : OPERATION BOARD (PCB3)