Kirisun PT8000 - Page 30

PT8000 Service Manual
28
Figure 5 PT8000 Keyboard Schematic Circuit Diagram
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
D D C C B B A A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
35
25
26
27
28
29
30
31
32
33
34
CN2 CN34
GND
MD
HOOK
ME
MIC
ME
PTT
GND
B
B
BLC
GND
GND
GND
BUSY
PTT
TXD
RXD
VPP
RESET
VCC
AFIN
AFOUT
MD
1
HOOK
2
MIC
3
ME
4
PTT
5
GND
6
B
7
BLC
8
CN1 RJ45
VR1 10K
R21 220R
R20 220R
R19 220R
R18 220R
R17 220R
R16 220R
R15 220R
R14 220R
a
7
b
6
c
4
d
2
e
1
f
9
g
10
dp
5
a
b
c
d
e
f
g
dp
COM
3
COM
8
IC1 SEG-0.5
R3 220R
K1 P1
K2 P2 K3 P3
K4 P4 K5 P5 K6 POWER
D13 GREEN
D14 GREEN
R22 220R
R23 220R
C34 101
C11 101
C13 101
C14 101
C15 101
C16 101
C17 101
C9 101
C8 101
C7 101
C6 101
C5 101
C4 101
C3 101
R4 0R
D3 GREEN
R1 330R
Q1 DTC144EE
D4
GREEN
D6
GREEN
C26 471
R11 220R R12 220R R13 220R R26 220R
D1 GREEN
R2
330R
D2
GREEN
D5 GREEN
C21 101 C22 101 C23 101 C24 101 C25 101 C27 101 C28 101
A
1
B
2
Q0
3
Q1
4
Q2
5
Q3
6
GND
7
CP
8
MR
9
Q4
10
Q5
11
Q6
12
Q7
13
VCC
14
IC2 74LS164
LOWL
SCANL
GND
KEY1
KEY2
RXL
DATA
CLK
TXL
R10 10R
C1 471
R30 220R
R31 220R
C2 *
C20 *
R27 10K
L1
BLM11A601S
R5 10K
R8 0R
R7 4.7K
R6 20K
R9 10K
R32 0R
R29 4.7K
R28 20K
C12 101
GND
MR
C31 101
C32 101
C33 101
C10 101
C29 101
C30 101
C35 101
R36 *
R24 220R
R25 220R
D7 GREEN
D10 RED
Q2 *
C18 *
Q3 *
C19 *
R33 0R
R34 0R
D8 GREEN
D9 *
按键板电原理图名称
文件号 设计 批准
机型 版本 审核 第张 张共
PT8000
1
1
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