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TROUBLESHOOTING AND REPAIR
MAIN INVERTER BOARD
“WELDING LOGIC AND INVERTER” SECTION TEST (continued)
FIGURE F.23 MAIN BOARD (LOWER LEFT)
TP9 GROUND
POWER
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| S | S |
L11 | G | D |
| S | S |
L14 | G | D |
|
D | G |
|
S | S | L12 |
D | G | L13 |
|
| |
S | S |
|
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MF11 | MF15 VDS MF12 MF16 VDS |
