Badcaps Forums - View Single Post

**sam_sam_sam** · 11-12-2021, 10:40 PM

If this machine has a step down transformer that supply’s power to this board look and see if it says 110 volt or not because if does do you know if your facility has a hot leg if it does then you might have the transformer on the wrong set of legs because if the step down transformer says 110 to 120 volts output

Because I has this happen to me one time and when I switch the legs to a certain way I got the correct voltage however do not change the machine main power supply legs unless you do NOT have any other motors on this machine because your rotation might be wrong

11-12-2021, 10:40 PM	#23
sam_sam_sam Badcaps Veteran Join Date: Jul 2011 City & State: Some times Sunny Jacksonville FL My Country: USA Line Voltage: 120 Volts 60 HZ I'm a: Knowledge Seeker Posts: 3,550	Re: Motor control board repair If this machine has a step down transformer that supply’s power to this board look and see if it says 110 volt or not because if does do you know if your facility has a hot leg if it does then you might have the transformer on the wrong set of legs because if the step down transformer says 110 to 120 volts output Because I has this happen to me one time and when I switch the legs to a certain way I got the correct voltage however do not change the machine main power supply legs unless you do NOT have any other motors on this machine because your rotation might be wrong __________________ 9 PC LCD Monitor 6 LCD Flat Screen TV 30 Desk Top Switching Power Supply 10 Battery Charger Switching Power Supply for Power Tool 6 18v Lithium Battery Power Boards for Tool Battery Packs 1 XBox 360 Switching Power Supply and M Board 25 Servo Drives 220/460 3 Phase 6 De-soldering Station Switching Power Supply 1 Power Supply 1 Dell Mother Board 15 Computer Power Supply 1 HP Printer Supply & Control Board * lighting finished it * These two repairs where found with a ESR meter...> Temp at 50F then at 90F the ESR reading more than 10% 1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later ) 2 Hem Saw Computer Stack Board All of these had CAPs POOF All of the mosfet that are taken out by bad caps Last edited by sam_sam_sam; 11-12-2021 at 10:43 PM..