Panasonic SX-KN2600P Service Manual page 52

SCHEMATIC DIAGRAM-3
A
MAIN 2/5 CIRCUIT
R106
24MHz
IC101
220
C0JBAB000180
+3.3D
IC101
C0JBAB000180
C108
R105 1M
0.1
VCC
GND R107
IC101
47
C0JBAB000180
X101
H0J240500016
C109
C111
10P
10P
+5D
R110 330
C110
A
0.1 R111 330
CN104
B
R112 330
1
FRM A
C
2
B D101
LOAD 3
MA2J11100L
R113 330
4
CP C D
DOFF 5 D E
R117
6 E F
D0
120K
7 F
D1
G
C116
8
D2 G
H 50V1
9
D3 H Z104
220x4
VDD 10
11
VSS
VEE 12
13
VLCD
F.G 14
+3.3D
C115
0.1
IC101
C0JBAB000180
C112
FDC.DRQ
0.1
R138
0
C117
0.1
+24V
D102
MA2J11100L
R115
4.7K
Q101
R118
2SD0601AQL
100
Q102
C114 R114
2SD0601AQL
50V1 470K A B C D E F G
R116
1.5K
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
80 VSS
+5D C119
0.1
NC
79
C120
78 NC
0.1
20 77 VDD
VCC 76 UD7
1 75 UD6
OE1
19 74 UD5
OE2
IC104
C0HBA0000134
73 UD4
(LCD CONTROLLER)
11 Y7 A7 9 72 UD3
Y6 A6 UD2
12 8 71
UD1
13 Y5 A5 7 70
14 Y4 A4 6 69 UD0
15 Y3 A3 5 68 FLM
16 Y2 A2 4 67 LP
17 Y1 A1 3 66 CP
18 Y0 A0 2 65 VSS
GND
10
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41
IC103
C0JBAZ000856
(BUS DRIVER)
f e d c b a
(CN1) ON SCHEMA TIC
DIA GRAM 11
1
CN106
+5D
C124
0.1
H
+3.3D
C122
B C D E F G H
100p
C121
0.1
C131
VSS 25
A8 I
26
A9 27 J
A10 28 K
A11 29 L
A12 30 M
A13 31 N
A14 32 O
C128
SWAP 33
0.1
VDD
34
VSS
35
2SB0709ARL
I
CSE 36
NC 37
NC 38
NC 39
VSS 40
C123
0.1
Z Y S X W V U T R Q
TO C CPC 1/2 CIRCUIT
2 3 4 5 6 7
IC105
BEND
C0JBAZ001264
+5D DUAL 3 STATE
C129
BUFFER
0.1
1 VCC 8
G1
R122 R123
R120
2 A1 G2 7
4.7K 4.7K
47
Y2 Y1
3 6
GND A2
4 5
R121
47
C125 C127
0.1 47P
C126
47P
GND VCC
R124
IC106
1 2 3 4 5
10K
C0JBAZ000514
SCHMITT
R125 TRIGGER
C130
+5D
100 INVERTER
0.01
TOC.SNS
CP.CLK
CP.DATA
CP.GATE
SUST
CPRST
C132 MRX
D+
0.1
MTX
D-
C133 100p
C134 100p
C135 100p
C136 100p
+3.3D
0.1 R129
47
SD.WP
R130 0
SD.BUSY
SD.SI
2SB0709ARL
+3.3D
Q105 +3.3D
Q106 +3.3D
R137 4.7K
R133 4.7K
5
1
4
2
R134 4.7K
3
R132
IC108
4.7K
C0JBAA000115
A
B
C
D
E
F
G
H
I
SX-KN2600 MAIN 2/5 SCHEMATIC DIAGRAM
+3.3D
+5D
R126 R127
4.7K 4.7K
IC107
C0JBAZ001264
DUAL 3 STATE
BUFFER
1 VCC 8 +5D
G1
2 A1 G2 7
3 Y2 Y1 6
+5D
4 GND A2 5 Q103
UNR51100L
R128
4.7K
Q104
UNR521600L
IORST
IC109
C0JBAZ000853
(16BIT BUS BUFFER)
+3.3D
C137
0.1 +3.3D
CN110
+5D
7 18 31 42
1
+3.3D
2
VCC(3.3V)
+3.3D
1 1OE 3OE 25 3
JIGU.CS
48 2OE 4OE 24
4
D(31)
47 1A1 1Y1 2 JIGU.SD
D(30)
5
46 1A2 1Y2 3
JIGU.CLK
D(29)
44 1A3 1Y3 5
6
D(28)
JIGU.SI
43 1A4 1Y4 6
D(27) 7
41 2A1 2Y1 8
JIGU.ON
D(26)
8
40 2A2 2Y2 9
SNS
D(25)
38 2A3 2Y3 11
9
D(24)
37 2A4 2Y4 12 DE
D(23) 10
36 3A1 3Y1 13
DE
D(22)
35 3A2 3Y2 14 11
D(21)
33 3A3 3Y3 16
D(20)
32 3A4 3Y4 17
D(19)
30 4A1 4Y1 19
D(18)
29 4A2 4Y2 20
D(17)
27 4A3 4Y3 22 SNS
D(16)
26 4A4 4Y4 23 JIGU.SI
GND
JIGU.CLK
JIGU.SD
4 10 15 21 20 34 30 45
JIGU.CS
D(0-31)
MIDI.TX
USBMTX
MIC.SNS
MIDI.RX
DSP EMPTY
DSP DRDY
LCD.IOCS
WE3
WE2
RE
LCD.CS
CD.WAIT
BUSCLK
PWM
IRQ0
A(0-24)