5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
1
2
3
-5V
* 200KHz
* 20KHz
INPUT
J6
COM
U14
J7
J8
J9
J10
2A
200K
20K
2K
U12
U3
V
S741
U22
U18
74HC00
U11
HCF4011
U11
20*7
1.5KV
8320 MAIN-10
4 1/2 Digit dlgital multimeter
C
1
1
Thursday, April 14, 2005
Title
Size
Document Number
Rev
Date:
Sheet
of
J2-6
J2-5
J2-4
J2-3
J2-2
J2-1
J3-9
J3-8
J3-7
J3-6
J3-5
J3-4
J3-3
-15V
-15V
-15V
+15V
+15V
5VA
+5V
+5VD
-5V
+5VD
+5VA
+5VA
DIODE
+15V
-15V
+15V
+5VA
-5V
5VA
+5V
5VD
+5VD
5VD
-5V
-5V
D3
VR102
10K
C316
45P
-
+
S741
2
3
6
7
4
5
1
C313
45P
C310
104
R200
9.9K
-
+
LF411
3
2
6
7
4
1
5
C6
222
+
C301
22u/25
Q5
MPSA13
2mA
R51
4.7K
C200
471
200V
-
+
S741
3
2
6
7
4
1
5
R300
10K
R74
20
R58
33K
R44
1M
U8
NE555
3
4
8
1
5
2
6
7
OUT
RST
VCC
GND
CV
TRG
THR
DSCHG
R4
9.9K
R
RE2
D1A0500
5
4
1
2
C26
68P
C32
1u
184
D8
R71
100K
R41
1K
R47
24K
U4B
4
5
6
R21
1M
R48
33K
R317
2.2K
R77
R310
10
Q3
1504
U10
ICL7135
25
26
2
24
1
11
20
19
18
17
12
13
14
15
16
23
27
28
21
8
7
10
9
4
5
6
3
22
R/H
STRB
REF
DGND
VCC-
VCC+
D1
D2
D3
D4
D5
B1
B2
B4
B8
POL
OVRNG
UNDRNG
BUSY
CRF+
CRF-
IN+
IN-
INTOUT
AUTO0
BFOUT
ALGCOM
CLK
A
FR105
D7
200mA
1N4148
D100
184
D14
R30
100
C304
10P
R79
HOLD
R6
88K
D4
VR3
50K
VR14
5K
D10
FR105
R201
880K
R60
10K
C20
1000P/1KV
R55
27K
-
+
U5A
CA3140
3
2
6
4
11
R22
100K
U4A
74HC00
1
2
3
R69
20
+
C17
47u/25
R73
2.2K
R17
3K
R1
9M
VR12
20K
C312
104
R36
R56
100
PTC
R18
1K
5
6
4
20V
C5
472
C3
22P
R62
178K
-
+
TL062
3
2
1
C201
101
R303
5.6K
R314
10K
C311
104
R57
10
R45
100K
D13 KDS226
C305
104
Q6
MPSA13
R
R35
VR101
5K
R307
5.6K
C33
0.47
VR13
20K
R49
100K
C307
104
R78
FREQUENCY
FR105
D6
C309
104
R302
2.2K
C34
1u
C100
100P
+
C23
1u/16
A
R311
90K
-
+
U21
2
3
6
7
4
U13
74LS47
7
1
2
6
4
5
3
13
12
11
10
9
15
14
16
8
A
B
C
D
/ABO
/ABI
/CT
A
B
C
D
E
F
G
VCC
GND
1000V
R52
47K 2W
C28
104
4.7K
R50
R309
200K
C19
100P/1KV
R304
5.6K
R61
1K
U4C
9
10
8
R67
2.5K
R70
100K
R23
47K
C30
12P
1N4148
D102
SG1
R53
18K
Q4
MPSA13
R20
1M
R59
220K
U9
HEF4053BT
12
13
2
1
5
3
6
11
10
9
14
15
4
16
8
7
X0
X1
Y0
Y1
Z0
Z1
INH
A
B
C
X
Y
Z
VDD
VSS
VEE
R63
110K
Q9
1504
DCV/ACV
Z3
TL431
R318
200K
VR100
500
C18
220P
R81
VR301
10K
FR105 x4
D2
20KHz
R46
6M
R308
390K
VR15
500
R72
100K
8
9
10
R312
10K
R5
880K
1N4148
D101
R25
47K
VR1
500
mA
-
+
U6A
TL062
3
2
1
Q1
1504
R28
1M
Q7
MPSA13
C1
4P
+
-
U7A
LM393
3
1
8
4
2
R305
51K
C37
104
R313
90K
R42
2.7K
R301
2.2M
R7
330K/2W
C306
104
C22
1000P/1KV
Z4
LM385BZ-1.2V
VR201
50K
Q2
3875
R306
200K
C25
1000P/1KV
R43
9.2K
D12
184
R101
47K
R31
100
R26
47K
+
C31
1u/16
D9
FR105
4
5
6
C36
104
R66
4.7K
R24 1M
1000V
R54
27K
200~2M
R64
4.7K
C303
473
B1
BUZZER
R34
9C
Y1
100KHz
R3
88K
R75
R32
90C
D1
+
C29
47u/25
U4D
12
13
11
V
R316
62
20mA
R29
1M
C315
104
R65
7.5K
C35
104
FREQ
+
C23
1u/16
R8
330K/2W
C21
100P
D11
184
Q8
MPSA13
R
R37
1C
C27
68P
20M
R315
100K
C40
100P
R76
R27
47K
R2
R
C300
224/50V
R100
22M
-
+
U6B
TL062B
5
6
7
1N4148
D103
VR4
5K
VR2
5K
R68
11K
C314
104
R310
10
VR11
1K
C302
224/50V
VR200
500
F4
1A/250V
R80
DIODE
VR10
2K
J14-1
J14-2
A
A
