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TROUBLESHOOTING & REPAIR
ACTIVE SCR TEST (continued)
FIGURE F.20 – SCR TEST POINTS
#3
SCR3 Cathode
SCR 3 & 4 Anode
and Negative Plate
SCR4 | #2 |
| Anode |
#4 |
| SCR1 |
|
|
Cathode |
|
|
|
|
SCR1 & 2 Cathode |
|
|
|
|
and Positive Plate | #1 | SCR2 | Choke | |
| Anode | Lead |
| |
|
| |||
SQUARE WAVE TIG 355
