CAS ED - Circuit Diagram; Main

ED Service Manual
16 04/12/10
3.2. Circuit Diagram
3.2.1. MAIN
EX-
+5V,BAT  Jumper
Power_chk
0
BK2
LED_BL
F1 FUSE
CN5_FEMALE1
Pb BAT
1
2
3
BUZZER PART
<Doc> <RevCode>
ED(MODULE Ver.)
A3
33Monday, March 26, 2007
Tit le
Size Document Number Rev
Date: Sheet
of
A_Vcc
CON_RX
L5 220uH
SW2
CAL
R23
10K
C13
470pF
+5V
+5V
S-
R16
100k
C16
1uF
C7 0.01u 3kV
Tx
D2
KDS184
21
3
D1
1N4004
Power_con
CN4
1
2
3
4
5
C12
470uF/35V
L7 220uH
BK1
LED_BL
S1
ON/OFF
C7
1uF
CON_RX
C5
0.1uF
A_Vcc
R14
100K
C2
0.1uF
D5
SS14
C10
1uF
C15
0.1uF
S+
BUZZER 1
D7
SS14
R18
100K
Rx
R25
100
D4 SS14
U2 XC6204C502MR
1
2
3
5
VIN
VSS
CE
VOUT
CN5_MALE1
BAT
1
2
3
L3
1 2
L2
1 2
RS232 DRIVER
PART
+5V
R12
100k
Q1
KTA1504
CON_TX
C9
470uF/35V
SIG+
Q2A
2N2222
R9
1k
Power PART
C14
470uF/35V
R15 4.7k
CN2
Adaptor
1
2
U4A
max3232idbre4
6
8
5
13
2
4
9
15
12
7
3
14
1
10
11
16
V-
RIN2
C2-
RIN1
V+
C2+
ROUT2
GND
ROUT1
DOUT2
C1-
DOUT1
C1+
DIN2
DIN1
V_CC
SIG-
+5V
    (+5V , Bat)
R13
100k
CN8
1
2
3
L1
1 2
BT1
Pb 6V/5A
BUZZER
RTC_Power
C8
1uF
D9 1N5406
CHIP BEAD
R21
100K
CN3 Power_SW
1 2 3
Back light
U5 LM7809
1 3
2
IN OUT
GND
D6 SS14
R10 100K
Q3 KTA1666
C
B
E
C11
1uF
+5V
+5V
L4
1 2
+
C3
100u/16v
R11
1k
CAL_SWPSEN
LOADCELL PART
Charger
CON_TX
C17 0.01u 3kV
R22
0.22 2W
Bat_c hk
R17 R
R20
7.5K
R19 10k
L6
220uH
VDD
+5V
BT2
3.3V
CAL PART
+5V
EX+
D3
KDS184
21
3
U4 MC34063A
5
36
4
8
7
1
2
COMP
TCA PVCC
GND
DC
PK
SWC
SWE
LED
0
R24
2k
JP3
1 2
BL_con
PROGRAM PART
+5V