Thermal Dynamics C-70A CUTSKILL Service Manual page 30

B. Component Tests
Disconnect primary power at the source before taking any resistance checks.
1. Input Diode Module Board Circuit Test
a. Check Input Diode for short per schematic located in Appendix 4.
b. Use the following photo with call-outs for test points.
Art # A-07055
Input Diode
O.C.V. Measured
between
these points
9
TROUBLE SHOOTING
Diode Outputs
1
5
4
3
Output Diode
6
7
8
WARNING
2
P5
Thermal SW
P5
6-8
IGBT Outputs
(-)
(+)
10
11
12
IGBT Output
13
Manual 0-4699