Hypertherm POWERMAX 800 - MAINTENANCE; Troubleshooting Check #2

3-13
MAINTENANCE
Service Manual
Check #2
All Power
Supplies
Disconnect torch lead.
Place + lead of ohm meter to upper bar spanning output diodes D2 and D3.
Place – lead of ohm meter to lower bar spanning output diodes D2 and D3.
Meter indicates
infinity or high
Kohms
?
To
page 3-14
Check # 3
Place – lead of ohm meter to upper bar spanning output diodes D2 and D3.
Place + lead of ohm meter to lower bar spanning output diodes D2 and D3.
Yes
Meter indicates
1.7K ohms
?
Yes
Replace diodes D2 and D3. No
Replace diodes D2 and D3. No
Upper bar spanning D2&D3
Lower bar spanning
D2&D3
Location of Bars Spanning D2 and D3