11-07-2022, 11:48 AM
Swapped back the two wires at the back of the L-1 and L-2 AC amp meters. The bad reading is back on the L-1 Amp meter.
Then I went to the coach rear, opened the AC power panel, and found the two donuts/inductors. But I don't see any abnormality with them.
AC Power Panel in the coach rear closet.
Two Donuts at the backside of the power panel
My question is, are the two signals that two donut rings collect, which are likely a low/small AC voltage, fed directly to the amp meter or to some circuit board for processing/rectifying before feeding to the amp meter? In other words, is there any middle guy (some device or board) between the donuts and the amp meter?
well, I guess what I should do now is measure the AC voltage across the two donuts and compare.
Then I went to the coach rear, opened the AC power panel, and found the two donuts/inductors. But I don't see any abnormality with them.
AC Power Panel in the coach rear closet.
Two Donuts at the backside of the power panel
My question is, are the two signals that two donut rings collect, which are likely a low/small AC voltage, fed directly to the amp meter or to some circuit board for processing/rectifying before feeding to the amp meter? In other words, is there any middle guy (some device or board) between the donuts and the amp meter?
well, I guess what I should do now is measure the AC voltage across the two donuts and compare.
Joe Zhao @ Greenville TX 75402
2004 Newell Coach 701, 45-8, 4 Slides, Front Entry
Detroit Diesel 60 w/DDEC, Allison 6-Speed AT, ZF Suspension w/Steerable Tag, ZF Auto Traction Control