S0740 800 186/E080826/P50
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ch31f3diode
Checking rectifier and freewheel diodes
1. Disconnect the machine from the mains.
2. Dismantle the housing of the machine.
3. Use a Torx key no. T25 to unscrew and remove five screws from circuit board 15AP2.
The screws are marked
on the picture below,
4. Bend out the circuit board so that it has no contact with the connections of the diode
module.
5. Use a multimeter in diode test position to measure the forward voltage drop of the two
diodes: see the picture below. The voltage drop must be 0.3 to 0.5 V.
6. If the diode module has to be replaced, follow the instructions on page 44.
Measuring points, circuit board 15AP2
Circuit diagram and measuring points, circuit board 15AP2
Summary of Contents for Cadd Tig 1500i TA34
Page 8: ...S0740 800 186 E080826 P50 8 ct34_00 Tig 1500i with control panel TA34...
Page 9: ...S0740 800 186 E080826 P50 9 ct34_00...
Page 10: ...S0740 800 186 E080826 P50 10 ct34_00 Tig 2200i with control panels TA33 and TA34...
Page 11: ...S0740 800 186 E080826 P50 11 ct34_00...
