![](/images/new-backgrounds/1301935/301935173x1.webp)
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TROUBLESHOOTING AND REPAIR | ||
|
MAIN INVERTER BOARD
“WELDING LOGIC AND INVERTER” SECTION TEST (continued)
FIGURE F.23 – MAIN BOARD (LOWER LEFT)
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TP9 GROUND ![](/images/new-backgrounds/1301935/301935173xi2.webp)
POWER
| S | S |
L11 | G | D |
| S | S |
L14 G
D
DG
S | S | L12 |
D | G | L13 |
|
| |
S | S |
|
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MF11 | MF15 | MF12 MF16 |