Filter
Top Products
F-24
TROUBLESHOOTING AND REPAIR
F-24
POWER MIG 255C
4.Verify that the capacitors have completely
discharged with a volt-ohmmeter.
5. Disconnect plugs J6 and J5 control
board. This electrically isolates the
SCR bridge assembly. See Figure F.6.
TEST PROCEDURE
1. Disconnect main AC input power to the
machine.
2. Remove the case top and side panels
with a 3/8 in. nutdriver.
3. Remove the tool tray with a 5/16 in. nut-
driver.
ACTIVE SCR RECTIFIER ASSEMBLY TEST (continued)
FIGURE F.6 — CONTROL BOARD MOLEX PLUG LOCATIONS FOR G3521 PC CONTROL BOARD.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC
Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC
J6
J5
J3
J8
J1
J4
J2