Panasonic KX-FT931LA-B

149
KX-FT931LA-B
17.3. Operation Board
SW39
1 23
4
C2
Z0.1u
( )
+5V
0R3
+5V
R5 0
0R4
C16
Z0.1u
+5V
R16
( )
NC
( )
K330p
C9
0R2
C1
Z0.1u
R19
4.7
R20
100
C17
Z0.22u
+5V
C15
Z0.1u
LED1
C3
6.3V220u
0R1
C6
K0.01u
C4
K330p
( )
C7
J120p
R18
270
R22
4.7K
IC1
1 KSL2
2 LED6
3 KIN1
4 LED7
5 XLED8
6 XLED9
7 KIN2
8 KIN3
9 XLED10
10 KSL3
11 KIN4
12KIN5 13KIN6 14KIN7 15XLED12 16XLED11 17VDD-17 18VSS-18 19XLED13 20XLED14 21XLED15 22LED1
23RS
24RWB
25E
26D4
27D5
28D6
29D7
30RESET
31SCLK
32RXD
33TXD
34 LATCH 35 START 36 LED2 37 LED3 38 LED4 39 VSS-39 40 VDD-40 41 LED5 42 KIN0 43 KSL0 44 KSL1
C19
K0.01u
+5V
SW1
FAX/START
SW2
COPY
SW3
STOP
SW4
1
SW5
CALLER ID
SW6
SW7
7
SW8
4
SW9
2
SW10
5
SW11
0
SW12
8
SW13
9
SW14
3
SW15
6
SW16
#
SW17
MONITOR
SW18 SW19
FLASH PAU SE
SW20
REDIAL
SW21
NAVI LEFT
SW22
NAVI DOWN
SW23
NAVI UP
SW24
NAVI RIGHT
SW25
NAVI CENTER
SW26
BOARDCAST
SW27
SKEY 3
SW28
SKEY 2
( )
SW29
RECORD
NC
SW30
SKEY 1
SW31
SKEY 6
SW32
MENU
SW33
AUTO ANSWER
SW34
SKEY 5
SW35
SKEY 4
( )
SW36
ERASE
NC
( )
SW37
PLAYBACK
NC
MIC+
MIC-
C14
J120p
0
R14
C13
K330p
SW38
1 23
4
4.7K
R23
100
R21
K0.01u
C20
+5V
CN2
1 VSS
2 VDD
3V0
4RS
5 R/W
6E
7 DB4
8 DB5
9 DB6
10
DB7
R15
18K
1K
R24
820
R25
R17
2.2K
( )
C22
NC
( )
R34
NC
( )
C25
NC
( )
R35
NC
( )
R37
NC
( )
C26
NC
( )
C28
NC
( )
R39
NC
AG
+5VA
AG
( )
R47
NC
( )
Q4
( )
R48
NC
AG
33
R50
+5VL
+5VL
CN1
1MICIN 2+5V 3DG 4KSTART 5KLATCH 6KRXD 7KTXD 8KSCLK 9OPERST
10NC
CN5
TP1 TP2
KX-FT931LA-B : OPERATION BOARD SCHEMATIC DIAGRAM
+5VA
+5V
DG
AG
( )
C99
NC
KSL0
KSL2
KSL4
KSL3
KSL0
KIN0
KSL3
KIN6
KSL4
KIN1KIN1
KIN7
KIN2
KIN3
KIN4
KIN0
KIN1
KIN2
KIN3
KIN4
KIN5
KIN6
KIN7
KSL1
KSL1 KSL2
KIN5
DOCUMENT TOP SW
TO LCD
TO DIGITAL
TO MIC