Operation Board - Panasonic KX-FT937LA-B Service Manual

17.3. Operation Board

Z0.22u
C17
4.7
R19
CN2
NC
) (
VSS 1
R16
VDD 2
V0 3
RS 4
R/W 5
E 6
DB4 7
DB5 8
DB6 9
DB7 10
6.3V100u
C99
NC
) (
C25
680 2.2K K0.01u
R35
R34
270
R18
LED1
820
R25
2.2K
1K
R17
R24
18K
R15
23 RS
24 RWB
25 E
26 D4
27 D5
28 D6
29 D7
30 RESET
31 SCLK
32 RXD
33 TXD
J120p
C14
K330p
C13
C22
150
R48
K330p
) (
C9
J120p
) (
C7
K0.01u
C6
K330p
C4
6.3V220u
C3
Z0.1u
) (
C2
Z0.1u
C1
4.7K 4.7K
R22 R23
K0.01u
C19
[4]
Z0.1u
C16
KIN7
KIN6
KIN5
KIN4 11
KIN4
KSL3 10
KSL3
XLED10 9
KIN3 8
KIN3
KIN2 7
KIN2
XLED9 6
XLED8 5
LED7 4
KSL4
KIN1 3
KIN1
LED6 2
KSL2 1
KSL2
KSL1
KSL0
KIN0
Z0.1u
C15
153
K0.01u
C20
KIN5
KIN6
KIN1 KIN1
KIN7
KIN2
KIN3
KIN4
KIN0
KX-FT937LA-B