Text preview for : 15_03_01.pdf part of PANASONIC KX-FT902 SERVICE MANUAL
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+5V
D7
+5V
E
S
6
5
4
0
R B
D
D
D
R
NC
V
G
( )
R7
W
D
CN2
10
+5V
9
8
7
6
5
4
3
2
1
5V
NC
R25
( )
R3
4.7
+5V
C10
0V
NC
NC
( )
( )
R6
C13
( )
NC
Z0.22u
+5V +5V
R4 TO LCD
( )
C18
C17
( )
Z0.22u
Z0.1u
NC
6.3V220u
56K
Z0.1u
330
( )
C3
C4
C5
R5 C11
TO MIC
(Q1) ( ) ( )
R11
R12
NC NC
NC MIC+
LCD
NC
( )
+5V
C12
TO DIGITAL MIC- +5V
CONTRAST
NC
( )
A C
R8
DOCUMENT
PS1
3.3V SET SW
K E
0V NO PAPER 5V
4.7K
R10
+5V
LED1
CN1
PAPER 5V
NC
R47 0
R15
( )
TxD 1
Latch 2
R45 0
0V R9
4 ( )
1
3 2
100
560
R14
R17
R48 0
270
RxD 3 SW44
[4]
K0.01u
C14
R13
DOCUMENT
27K
Start 4 R44 0
TOP SW
SCLK 5
R46 0
DG 6
C6 K330p
J120p
Reset 7
R24 0
K0.01u
K330p
( )
( )
C9
C19
+5V 8
K330p
J120p
33
32
31
30
29
28
27
26
25
24
23
NO PAPER 5V
C7
C8
C20
LED ON : 0V
RWB
RS
E
D7
D6
D5
D4
RESET
AG 9
RXD
SCLK
TXD
NC 10 34 LATCH
IC1
LED1 22 PAPER 0V OFF : 5V
35 START XLED15 21
MICIN 11 36 LED2 XLED14 20
37 LED3 XLED13 19
FG 12 38 LED4 VSS-18 18
39 VSS-39 VDD-17 17
40 VDD-40 XLED11 16
Z0.1u
C15
41 LED5 XLED12 15
C16
Z0.1u
42 KIN0 KIN7 14 +5V
+5V 43 KSL0 KIN6 13
XLED10
44 KSL1 KIN5 12
XLED8
XLED9
LED6
LED7
KSL2
KSL3
KIN1
KIN2
KIN3
KIN4
10
11
1
2
3
4
5
6
7
8
9
+2.5V
KSL0
KSL1
KSL2
KSL4
KSL3
KIN0
KIN1
KIN2
KIN3
KIN4
KIN5
KIN6
KIN7
FG
KIN0
KIN1
KIN2
KIN3
KIN4
KIN5
KIN6
KIN7
NC
LOWER No 4/ No 15 RECORD No 5/ No 16 8 9 7 No 1/ No 12
( )
SW1 SW6 SW11 SW16 SW21 SW26 SW31 SW36
KSL0
+5V +5V
NC NC