Operation Board - Panasonic KX-FP81BX Service Manual

14.3. OPERATION BOARD

5V
TO DIGITAL
CN301
0V
RESET 11
KSCLK 10
KTXD 9
KRXD 8
KLATCH 7
KSTART 6
R301
JOG1 5
470
R376
JOG2 4
( )
NC
+5V1 3
R302
GND 2
470
R375
MICIN 1
( )
NC
TO DIGITAL
CN303
MICIN 1
2
GND 3
NOT USED
AUTO ANSWER
+5V2
IC302
-2 8 2
1
3
4
C356
NOT USED
1 JOG1
2 GND
3 JOG2
SW351
JOG DIAL
+5V1
MENU 9 * RECORD 0 ERASE
SW301 SW306 SW311 SW316 SW321 SW326 SW331
NC NC
HELP 4
MUTE 5 6 PLAY MESSAGES LOCATOR
SW302 SW307 SW312 SW317 SW322 SW327 SW332
NC
VOL+ COLLATE 1 RESOLUTION
2 CALLER ID
SW303 SW308 SW313 SW318 SW323 SW328 SW333
NC
VOL- QUICK SCAN MONITOR STOP
COPY/START/SET REDIAL/PAUSE FLASH
SW304 SW309 SW314 SW319 SW324 SW329 SW334
DIRECTORY
IQ-FAX 8 7 INTERCOM PROGRAM
SW305 SW310 SW315 SW320 SW325 SW330 SW335
NC
+5V2
C355
R356 TO MIC
R355 C353
6
MIC (+)
7
5 +5V2 MIC (-)
IC302
-1
NC....Not Used
LCD CONTRAST
+5V2 +5V1
IC301
30 17
RESET VDD
31 40
SCLK VDD
32 2
RXD LED6
33 22
TXD LED1
34 23
LATCH RS
35 24
START R/W
42 25
KIN0 E
3 26
KIN1 D4
7 27
KIN2 D5
8 28
KIN3 D6
11 29
KIN4 D7
12 36
KIN5 LED2
13 37
KIN6 LED3
14 38
KIN7 LED4
43 41
KSL0 LED5
44 5
KSL1 XL8
1 6
KSL2 XL9
10 15
KSL3 XL12
4 16
KSL4 XL11
NC 9 19
XL10 XL13
18 20
GND XL14
39 21
GND XL15
NC
3
5V
+5V2
0V
R380
( )
NC
SW353
# R317
3 1
100 4 2
DOCUMENT
TOP SW
199
+5V
+5V2
TO LCD
CN302
5V
1 GND
0V
2 +5V
3 V0
4 RS
5 R/W
TO COB
6 E
7 D0
8 D1
9 D2
10 D3
11 D4
12 D5
0V
13 D6
LED: ON
14 D7
5V
LED: OFF
+5V2
IN USE1
LED301
R310
( ) ( )
NC
IN USE2
LED302
R311
( ) ( )
NC
NEW MESSAGES
LED303
R312
( )
( )
NC
+5V2
R382
( )
NC
SW352
R315
3 1
100 4 2
DOCUMENT
SET SW
KX-FP81BX / KX-FP81CX / KX-FP82CX