Schematic Diagram; Digital Board - Panasonic KX-FT931LA-B Service Manual

17 Schematic Diagram

17.1. Digital Board

MOTOR BLOCK
+24V
M
R1
F1 1.25A
820
Q1
+5V
BR4
D502
D501
CN3
9
BR1
20V
COM 1
10
RM3 2
11
RM2 3
12
RM1 4
13
RM0 5
14
+24LV
15
16
THERMAL HEAD BLOCK
Q7
8 1
7 2
+24VF
6 3
5 4
+24VF
Q4
PG
+2.5VD
CN4
PG
1
COM
R13 100
2
LATCH
R14 100
3
STB1
+3.3VD
C12
4
GND
Z0.1u
5
+3.3V
6
TM
L21
R15 100
7
CLOCK
8
GND
R16 100
9
STB2
R17 100
10
DATA
11
COM
+5V
MOTOR POSITION
SENSOR
CN5
R31
2
1K
1
DG
DG
+5V
CUTTER POSITION
SENSOR
CN6
R32
2
1K
1
NC
DG
DG
OPE-PANEL BLOCK
+24V +24V
+24LV
CN206
+5V F2 0.25A
MIC 1
2
+5V
DG 3
R51 270
KSTART 4
R52 270
KLATCH 5
R53 100
6
KRXD
R54 100
KTXD 7
R55 100
KSCLK 8
R56 100
OPERST 9
10
NC
DG
TO POWER
+5V
+5V
SUPPLY
R70
Q9
CN1
9
PCONT
DG
+6V
+6V
8
+6V
DG
7
+6V
+6V TO +5V REG
6
GND
DG
IC15
5
GND
VOUT
4
2 VIN
GND
VSS
PG DG
3 +24V
1
+24V
2
+24V
1
+24V
DG
DG
A[4]
A[5]
A[6]
A[7]
RBA[0]
RBA[1]
RBA[2]
RBA[3]
R2
RBA[4]
RBA[5]
1.5K 1/2W
RXE
+3.3VD
Q2
IC7
DG
GND
8
7
RM3
6
RM2
5
RM1
4
RM0
3
BLEEDER_ON
2
PG
1
PG
+24V
Q6
Q5
DG
HEADON
TH-TMP
THLAT
STB1
THCLK
STB2
THDAT
DG
MOT_POS
MOT_POS
CUT_POS
ACK_EN
CISON
RLY
CUT_POS
KSTART
KLATCH
KSCLK
KTXD
KRXD
OPRESET
+5V
KSTART
KLATCH
KRXD
KTXD
KSCLK
OPRESET
H/L control
DG
PWRCNT
+5V +5VA
0
+3.3VD +3.3VD
DG
+5V
+5V TO +3.3VD REG
+3.3VD
+5V
IC3
1 5
VDD CE
3
2
GND
3 4
VOUT VDET
DG
RESET
DG DG
4M DRAM
IC4
D[0]
10 2
A0 DQ1
D[1]
11 3
A1 DQ2
D[2]
12 4
A2 DQ3
D[3]
13 5
A3 DQ4
D[4]
16 24
A4 DQ5
D[5]
17 25
A5 DQ6
D[6]
18 26
A6 DQ7
D[7]
19 27
A7 DQ8
20
A8
9
A9R
+3.3VD
6
NC6
21
14
NC21 VCC-14
1
VCC-1
7
WE
22
OE
8 15
RAS VSS-15
23 28
CAS VSS-28
DG
DG
RXE
XRESET
+3.3VD +2.5VD
C179
Z0.1u
STB1
STB2
C151
+5V
Z0.1u
C153
109 VSS
110 VDD3.3V
Z0.1u
111 XDRESET
112 VDD5.0V
113 VSS
XWDERR
XRESETI
114
XWDERR
115
THDAT
116 THDAT
THCLK R151
117 THCLK
THLAT 4.7K
118 THLAT
119 STBNP
RM0
120 RM0/IOP00
RM1
121 RM1/IOP01
RM2
122 RM2/IOP02
RM3
RM3/IOP03
123
RXE
124 RXE/IP04
125 TM0/IOP10
C154
126 VDD2.5V
127 VSS
128 TM1/IOP11
Z0.1u
129 TM2/IOP12
130 TM3/IOP13
TXE/IP14
131
KSTART
132
133 KLATCH
134 KSCLK
135 KTXD
136 KRXD
137 FMEMCLK/IOP24
138 FMEMDI/IOP25
R152 22K
139 ADSEL1
Z0.1u
VDDA2.5V
140
C156
C155 VREFB
141
C157
Z0.1u 142 VCL
+3.3VD
Z0.1u
143 VREFT
DG
144 VSSA
+3.3VA
AIN2
DG DG
C161
K0.1u
+3.3V/BATIN
DG
+3.3VD TO +2.5V
+2.5VD +2.5VD
Q10
DG
145
4M FLASH
FOR PROGRAM
IC2
A[0] A[0]
20 21
A0
A0 D0
A[1] A[1]
19 22
A1
A1 D1
A[2] A[2]
18 23
A2
A2 D2
A[3] A[3]
17 25
A3 A3 D3
A[4] A[4]
16 26
A4
A4 D4
A[5] A[5]
15 27
A5
A5 D5
A[6] A[6]
14 28
A6
A6 D6
A[7] A[7]
13 29
A7
A7 D7
A[8] A[8]
3
A8
A8
A[9] A[9]
2
A9
A9
A[10] A[10]
31
A10
A10
A[11] A[11]
1
A11 A11
A[12] A[12]
12 7
A12
A12 WE
RBA[0] RBA[0]
4 8
A13
A13 VDD
RBA[1] RBA[1]
5 24
A14
A14 VSS
RBA[2] RBA[2]
11
A15
A15
RBA[3] RBA[3]
10
A16
A16
RBA[4] RBA[4]
6
A17
A17
RBA[5]
30
A18
CE
32 9
OE A18
RBA[5]
RD WR
+3.3VD
CE1
CE2
R102 10K
J2
+3.3VD
ROMCS MFCS
IC11
1 INB 5
VCC
2
INA
3 4
GND
OUT
Z0.1u
C105
DG
RBA6
IC1
XDPRBE/MUX/OP53
MICLK/IOP46
MIDAT/IOP45
VDD3.3V
FMEND0/IOP26
AMON
X1
BR2
2 1
R156
( )
A
NC
DG
FTG
+3.3V/BATIN TO +2.5V/BATIN
+2.5V/BATIN
+3.3V/BATIN
+3.3V/BATIN
+2.5V/BATIN
R77
( )
NC
DG DG DG
KX-FT931LA-B
D[0]
D[1]
D[2] D[0]
D0
D[3] D[1]
D1
D[4] D[2]
D2
D[5] D[3]
D3
D[6] D[4]
D4
D[7] D[5]
D5
D[6]
D6
D[7]
D7
+3.3VD
DG
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
C176
Z0.1u
VSS 72
VDD3.3V 71
DB5 70
DB1 69
DB4 68
DB2 67
DB3 66
(12)
XRESCS2/OP71 65
XCAS2/IOP44 64
10
R167
XCAS1/IOP43 63
10
R166
XRAS/IOP42 62
100
R165
XMDMCS 61
XMDMINT 60
TEST4 59
TEST3 58
TEST2 57
TEST1 56
(13)
XTEST 55
C175
VDD3.3V 54
VSS 53
XIN 52
Z0.1u
(14)
XOUT 51
VDD2.5V 50
ADR13
ADR13/OP 49
ADR14
ADR14/OP 48
ADR15
ADR15/OP 47
46
XHSTWR/IOP41 45
R161
XHSTRD/IOP40 44
(15)
XWAIT/IOP60 43
20KOSC/IOP56 42
100
MILAT/IOP47 41
40
39
38
VSS 37
C171
Z0.1u
C168
K1000p
(16)
XNMI
(17)
(18)
(19)
(20)
(21)
B
(22)
(23)
(24)