Megger MIT510 - Page 44

AF008-02-1201
44
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
+8V
-12V
DebugComms[1..4]
-12V
-8V
/Eng_mode
SPI[1..4]
+5V(A)
0V(A)
-8V
DigitalAnalogue
To H V Board
Marked 'Lo' on PCB
Connects to front panel '-' terminal
Board_ID0
DACout
0V(D)
+5V(A)
0V(A)
/Discharge
0V(D)
+5V(D)
TP85TP84
0V(A)
TP92TP91
TP86 TP87
DebugComms1
1
3
5
7
9
11
13
15
2
4
6
8
10
12
14
16
1718
1920
<-KEY->
PL5
DebugComms2
TP93
1 RxD1 into CPU / Tx from IrDA
2 TxD1 from CPU / Rx into IrDA
TP96TP90
TP95
TP94
DebugComms3
TP89
1 RxD0 into CPU
2 TxD0 f rom CPU
3 RxD2 into CPU
4 TxD2 f rom CPU
Board_ID1
5mA_Select
-8V
0V(A)
+5V(A)
+12V
-8V
0V(A)
+5V(A)
TP181
/IrDA_disable
TP122
0V(D)
+5V(D)
HV_OFF
0V(D)
D32
MBRS130LT3
1
3
4
5
6
7
8
2
9
10
11
12
13
14
SK10
-12V
DebugComms4
+8V
TP207
0V(A)
-8V
+5V(A)
+5V(D)
0V(D)
IRDALink2
IRDALink1
+5V(IrDA)
0V(IrDA)
Title
Size
Document Number
Date:
Sheet
of
MEGGE R L IMIT E D
Archcliffe Road, Dover,
Kent, CT17 9EN, England
Issue Date CN No.Instrument:
Drawn By:
© MEGGER LIMITED
6270-298
Measurement Board - Block Diagram
A3 1 7
Wednesday , August 14, 2002
MIT5XX & 10XX
C.Wedge 11 22-02-2006 22621
12 06-03-2006 22636
bom-SM Production
Controller
GuardFuseOK
Polarity
BreakdownDetect
ADC_SPI[1..4]
IRDALink[1..2]
CurrentOvrRng
CurrentRange2
CurrentRange1
DRDY-
DACout
Board_ID0
CurrentRange4
Board_ID1
AdcReset-
5mA_Select
DebugComms[1..4]
CNVS
UP_OK
/Eng_mode
+5V(D)
0V(A)
0V(D)
CurrentRange-FLT
/Discharge
HV_OFF
PL1
PL4
Marked 'Hi' on PCB
Connects to HV board
Front panel '+' terminal, via resistor
L1 470uH
PL3
+5V(IrDA)
CurrentMeasurement
Current
IN
CurrentRange2
CurrentOv rRng
2.5V-REF
CurrentRange1
CurrentRange4
+5V(A)
0V(A)
-8V
0V(D)
CurrentRange-FLT
+8V
A
FS1
0.5
PowerSupply
+12V +5V(A)
0V(A)
-8V
0V(D)
+5V(D)
+5V(IrDA)
0V(IrDA)
+8V
-12V
CNVS
UP_OK
IRDALink
IRDALink[1..2]
/IrDA_disable
+5V(IrDA)
0V(IrDA)
0V(D)
SK2
Marked 'G' on PCB
Connects to front panel 'G' terminal
ADC
|AvgVolts|
Current
SPI[1..4]
2.5V-REF
DRDY-
+5V(D)
+5V(A)
-8V
0V(D)
0V(A)
AdcReset-
/Discharge
+8V
SK1
VoltageMeasurement
HVin
|AvgVolts|
Polarity
BreakdownDetect
+5V(A)
0V(A)
-8V
0V(D)
GuardFuseVolts
GuardFuseOK
+12V
0V(A)
+12V
0V(IrDA)
0V(D)
+5V(D)
0V(D)
Sheet 5
Sheet 7
Sheet 2
IRDALink[1..2]
Sheet 3
Sheet 4
+8V
Sheet 6