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TROUBLESHOOTING & REPAIR |
STATIC SCR RECTIFIER ASSEMBLY TEST (continued)
FIGURE F.3 — REMOVE PLUGS J6 AND J9 TO PERFORM STATIC RECTIFIER ASSEMBLY TEST.
J6
J5
J3
J8 | J9 |
J1
J4
J2
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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.
4.Verify that the capacitors have completely discharged with a volt- ohmmeter.
5.Disconnect plugs J6 from the G3521 control board and J9 from the M19248 snubber PC board. This electrically isolates the SCR bridge assembly. See Figure F.3.
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