Re: RYOBI-one charger
Ok so R2, R3, R4 were all burned - R2 very badly - had a hole in it. D1 was also burned. All replaced, The grey resistor RS1 was also burned with a hole in it. I have replaced RS1 with a 0.4Ohm Resistor - it shows as a 0.43Ohm resistor but 0.4Ohm is the closest I can find - is this likely to be an issue? I don't want to plug this in if that's going to burn something out!
Also BD3 was shorted - this one is a diode between what appears to be the primary side ground and mains voltage input - would probably explain why RS1 and R4 burned so badly as...
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Re: RYOBI-one charger
IC Installed correct way yes - I will check the resistances of the resistors mentioned later and report back. I'll also attempt to check the input voltages on the IC
As for a recap on the original issue - main SMD fet on the secondary part was burned due to the short of one of the diodes as per original thread post. I have replaced already the main smd fet and the twin diodes as per the original thread post. Also have replaced the protection Zener on that circuit. All electrolytic caps have also been replaced. It was still no go at this point so...
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Re: RYOBI-one charger
ok finally got my IC's from china unfortunately still no go - there appears to be a short on the output side of the transformer. All pins on the output of the transformer appear to be shorted to the negative battery terminal. I've checked and cannot see any obvious sources for this short - any pointers?
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Re: RYOBI-one charger
Ordered from china so now the wait begins - a few of the resistors around it don't look great either do you know the values?
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Re: RYOBI-one charger
Ok yes that's it thanks but is there any compatible part code which is available from a UK supplier or is China the only option?Last edited by simonmpoulton; 06-17-2018, 10:32 AM.
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Re: RYOBI-one charger
sure model is BCL14181H and upon closer inspection of chip in question under the microscope i can make out the code 6853i34. I cannot seem to find any data sheet for this though!
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Re: RYOBI-one charger
Got same problem with my charger - the mosfet looks like it blew up far worse than pictured. Have replaced mosfet, zener diode and the pair of diodes with MBR40250G. IC1 also looks burned however - does anyone know the part code for this?
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MSI GT70 Issues After Power Jack Repair
I have an MSI GT70 laptop which came to me for repair with a faulty power jack. When I dissassembled the unit I found the jack was completely burned out on the positive leg and had fused together with the positive and negative inside the motherboard (checked with multimeter).
I was able to disconnect the filters from the main power input and remove the short between positive and negative by jumpering a new power jack directly to a good area of the board. This was working fine and the machine turned on, charged the battery etc. Unfortunately this has now stopped working and the machine no...
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Re: Dell SX280's
Given it is Nichicon caps that currently reside in the board i would rather avoid using them anyway. Which series of Panasonic or Rubycon caps are correct to replace the nichicons?
Th3 - Once you add on the shipping plus the fact that UK Customs will help themselves to Import VAT and Parcelforce UK will charge £13.50 for the priviledge of delivering the package it frankly would not be worth it. The $30 for the kit would easily double to $60.Last edited by simonmpoulton; 08-14-2012, 05:28 PM.
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Re: Dell SX280's
I'm in the UK so it isn't practical for me to buy from the badcaps store unfortunately.
If the Panasonic FR are unsuitable can you please provide details of which cap series I will need to get from Farnell?
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Re: Dell SX280's
The ones I put in were Panasonic FR 10,000 Hour 105C.
Is there anything better I could be using? Prefer Rubycon or Panasonic.
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Dell SX280's
Wondering if anyone can help us on these ones.
I've got two Dell SX280's - both started off with the blinking amber light issue and had a bulging 2200uf nichicon in the same position.
Machine 1:
Changed just the bulging cap - seemed to work ok for a while and then started having issues with the network card - phantom data being sent etc. Changed the remainder of the 2200uf caps, same problem. Recapped all the bigger caps on the board with the exception of the processor ones (they were rubycon ones), result flashing orange light again? Checked all the solder...
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