Thermal Dynamics CUTMASTER 102 Service Manual

cutmaster 102
Manual 0-4998 5-23 SERVICE
J. PCB 2 Capacitor / Relay Test (with PCB2
removed from the unit)
1. Using an ohmmeter perform the following
checks::
PCB 2 Capacitor & Relay Test
Meter + Meter - Indication
MTH 2 MTH 4 Charging
MTH 8 MTH 7 Charging
MTH 7 MTH 4 Open
MTH 8 MTH 2 Open
MTH 8 MTH 4 Open
Most meters will show a charging action. Initially a
low resistance will be shown and then the reststance
will start to increase. If the meter probews are re-
versed the reading will decrease to zero, then start
charging in the opposite polarity.
2. If test reveals a failed component, replace Capaci-
tor PCB 2.
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 PCB1
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 Biase Diode
TP2 AC2 Reverse Biase Diode
TP2 AC3 Reverse Biase Diode
TP8 AC1 Forward Biased Diode
TP8 AC2 Forward Biased Diode
TP8 AC3 Forward Biased Diode
AC1 TP8 Reverse Biase Diode
AC2 TP8 Reverse Biase Diode
AC3 TP8 Reverse Biase 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 PCB5
Test points are located on PCB5
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 Biase Diode
PMTH 1 AC2 Reverse Biase Diode
PMTH 1 AC3 Reverse Biase Diode
PMTH 4 AC1 Forward Biased Diode
PMTH 4 AC2 Forward Biased Diode
PMTH 4 AC3 Forward Biased Diode
AC1 PMTH 4 Reverse Biase Diode
AC2 PMTH 4 Reverse Biase Diode
AC3 PMTH 4 Reverse Biase Diode
PMTH 4 PMTH 1 2 Forward Biased Diodes
2. If the test reveals a failed component, replace
Main 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.

Thermal Dynamics CUTMASTER 102 Specifications

General

Brand	Thermal Dynamics
Model	CUTMASTER 102
Category	Welding System
Language	English