Megger MIT510 - Page 36

AF008-02-1201
36
Number
Issue
Date
CN Number
6
1
7
2-
999
2
17-01-07
22933
Compiled
By:
S.Mynott
Date
Compiled:
08/08/06
MIT5XX/10XX
1
st
Used On:
SERVICE MANUAL
+3.3V_USB
RS232_TX
RS232_RX
USB_TX
USB_RX
5
36
1
2
4
8
7
NC1
NC2
IC4
6N136
5
3 6
1
2
4
8
7
NC1
NC2
IC6
6N136
R2
1.00K
+3.3V_USB
R11
680R
+5V
TP47
IDbit1
TP46
R39 1.00K
TP32
TP34
+5V
TP36
IDbit2
-10V_ISO
TP38
TP39
TP40
R1
100.00K
TP41
TR1
BCW32
TP42
TP43
TP44
uP_TxD1
TR3
BCW32
NOT FITTED
R10 NOT FITTED FOR MODEL 20
R9 NOT FITTED FOR MODEL 10
RS232
Plug
ISOLATION
Connection to instrument
ISOLATING Tx
GND
+3.3V_USB
1
3
4
5
6
7
8
9
2
10 11
PL3
GND
R38
100.00K
RS232_Tx
RS232_Rx
GND
1
OUT
2
IN
3
VR1
LM1117-3.3
12
+
C12
10.00uF
12
+
C4
10.00uF
12
C7
100.00n
50.00
12
+3.3V_ISO
D1
LL4148
11
R24
4.70K
1
0.063
R3
4.70K
GND
GND
GND
GND
GND_EARTH
GND_EARTH GND_EARTH
+
C5
10.00uF
16
GND_EARTH
C3
3.30n
400
R18
1.00K
TP25
TP24
SHDN
1
D1
2
T1ldr
3
T1in
4
T2in
5
T2ldr
6
GND
7
EN
8
R1out
9
R1din
10
R2din
11
R2out
12
D2
13
VCC
14
IC1
MAX250
R4 4.70K
1
3
4
5
6
7
8
2
9
10
11
12
13
14
SK1
C9
100.00n
25
TP14
TP1
5
36
1
2
4
8
7
NC1
NC2
IC3
6N136
TP2
5
3 6
1
2
4
8
7
NC1
NC2
IC5
6N136
TP3
C1
100.00n
25
1
3
2
4
5
6
TX1
11
+
C14
10.00uF
16
USB_Rx
C10
100.00n
25
USB_Tx
+
C13
10.00uF
16
AC
1
V+
2
T1din
3
T2din
4
R1ldr
5
R2ldr
6
BYP
7
RTRI
8
R2in
9
R1in
10
T2out
11
T1out
12
V-
13
ISO GND
14
IC9
MAX251
R16
4.70K
TR2
BCW32
R12 220R
C8
1.00n
50.00
+3.3V_USB
B
1
A
2
GND
3
Y
4
VCC
5
IC2
74AHCT1G08GW
Title
Size
Document Number
Date:
Sheet
of
ME GGE R L IMITE D
Archcliffe Road, Dover,
Kent, CT17 9EN, England
Issue Date CN No.Instrument:
Drawn By:
© MEGGER LIMITED
6270-306
INTERFACE BOARD (ISOLATED)
A4 1 2
Tuesday , June 22, 2004
MIT5XX & 10XX
Simon Haynes 3 11-10-06 22841
2 03-02-2005 22235
<Variant Name>
R19
1.00K
R7 NOT FITTED FOR MODEL 20
R8 NOT FITTED FOR MODEL 10
R17
100.00K
IDbit0
uP_RxD1
R6 10.00K R8 10.00K
R10 10.00K
R5 10.00K R7 10.00K R9 10.00K
NF
+
C24
1.00uF
25.00
+5V
C25
1.00n
50.00
+5V
+5V
+5V
TR6
BCW32
R36
1.00K
R37
1.00K
C2
1.00n
50.00
+10V_ISO
+10V_ISO