CUTMASTER 102
Manual 0-4998
SERVICE
5-23
K. PCB 1 Input Diode Test. (With PCB 2 removed
form unit)
1. Using an ohmmeter perform the following checks:
Input Diode Module D1 on PCB 1
Test points located on PCB 1
Meter (+)
Meter (-)
Indication
AC1
TP2
Forward Biased Diode
AC2
TP2
Forward Biased Diode
AC3
TP2
Forward Biased Diode
TP2
AC1
Reverse Biased Diode
TP2
AC2
Reverse Biased Diode
TP2
AC3
Reverse Biased Diode
TP8
AC1
Forward Biased Diode
TP8
AC2
Forward Biased Diode
TP8
AC3
Forward Biased Diode
AC1
TP8
Reverse Biased Diode
AC2
TP8
Reverse Biased Diode
AC3
TP8
Reverse Biased Diode
TP8
TP2
2 Forward Biased Diodes
2. If the test reveals a failed component, replace Main
PCB 1.
L. PCB 5 Input Diode Test. (With PCB 2 removed
form unit)
1. Using an ohmmeter perform the following checks:
Input Diode Module D1 on PCB 5
Test points are located on PCB 5
Meter (+)
Meter (-)
Indication
AC1
PMTH 1
Forward Biased Diode
AC2
PMTH 1
Forward Biased Diode
AC3
PMTH 1
Forward Biased Diode
PMTH 1
AC1
Reverse Biased Diode
PMTH 1
AC2
Reverse Biased Diode
PMTH 1
AC3
Reverse Biased Diode
PMTH 4
AC1
Forward Biased Diode
PMTH 4
AC2
Forward Biased Diode
PMTH 4
AC3
Forward Biased Diode
AC1
PMTH 4
Reverse Biased Diode
AC2
PMTH 4
Reverse Biased Diode
AC3
PMTH 4
Reverse Biased Diode
PMTH 4
PMTH 1
2 Forward Biased Diodes
2. If the test reveals a failed component, replace 40A PCB
5.
M. PCB 1 IGBT Test. (With PCB 2 removed from
unit)
1. Using an ohmmeter perform the following checks:
PCB 1 Q1
Test points located on PCB 1
Meter (+)
Meter (-)
Indication
PRI 1
TP1
Forward Biased Diode
PRI 1
TP5
Reverse Biased Diode
TP1
PRI 1
Reverse Biased Diode
TP5
PRI 1
Forward Biased Diode
PRI 2
TP1
Forward Biased Diode
PRI 2
TP5
Reverse Biased Diode
TP1
PRI 2
Reverse Biased Diode
TP5
PRI 2
Forward Biased Diode
PCB 1 Q2
Test points located on PCB 1
Meter (+)
Meter (-)
Indication
PRI 3
TP4
Forward Biased Diode
PRI 3
TP8
Reverse Biased Diode
TP4
PRI 3
Reverse Biased Diode
TP8
PRI 3
Forward Biased Diode
PRI 4
TP4
Forward Biased Diode
PRI 4
TP8
Reverse Biased Diode
MTH 8
TP4
Reverse Biased Diode
MTH 7
TP8
Forward Biased Diode
3. If the test reveals a failed component, replace Main
PCB 1.
N. PCB 5 IGBT Test. (With PCB 2 removed from
unit)
1. Using an ohmmeter perform the following checks:
PCB 5 - Q1
Test points located on PCB 5
Meter (+)
Meter (-)
Indication
PRI 1
PMTH 1
Forward Biased Diode
PRI 1
PMTH 2
Reverse Biased Diode
PMTH 1
PRI 1
Reverse Biased Diode
PMTH 2
PRI 1
Forward Biased Diode
PRI 2
PMTH 1
Forward Biased Diode
PRI 2
PMTH 2
Reverse Biased Diode
PMTH 1
PRI 2
Reverse Biased Diode
PMTH 2
PRI 2
Forward Biased Diode
Summary of Contents for CUTMASTER 102
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Page 91: ...CUTMASTER 102 Manual 0 4998 PARTS LIST 6 9 A 07994_AB 1 4 2 3 5 6 7 8 9 10 12 11 10 13 ...
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