Hi,
I have this EU-version of Ryobi charger which doesn't show any lights when plugged in, but the green led blinks after disconnecting it from the wall socket.
I started troubleshooting by reading this thread https://www.badcaps.net/forum/showth...ighlight=ryobi but I guess it is for an older model.
I found couple of SOT-23 mosfets/transistors which look pretty bad (Q5, Q3). Cannot see any markings on them, does anyone know what they are and could these be the reason why the charger doesn't work? Similar components can be found on the PCB with markings 1AM and 702…
No voltage on BAT+/BAT-, but main cap has 330ish volts and 50V 470uF cap on the secondary side has 30V after unplugging so at least something is getting from primary side to secondary side?
I'll clean the board tomorrow with IPA and start measuring diodes, resistors, caps etc but can someone give me some guidance what to measure and what to look for?
Thanks!
I have this EU-version of Ryobi charger which doesn't show any lights when plugged in, but the green led blinks after disconnecting it from the wall socket.
I started troubleshooting by reading this thread https://www.badcaps.net/forum/showth...ighlight=ryobi but I guess it is for an older model.
I found couple of SOT-23 mosfets/transistors which look pretty bad (Q5, Q3). Cannot see any markings on them, does anyone know what they are and could these be the reason why the charger doesn't work? Similar components can be found on the PCB with markings 1AM and 702…
No voltage on BAT+/BAT-, but main cap has 330ish volts and 50V 470uF cap on the secondary side has 30V after unplugging so at least something is getting from primary side to secondary side?
I'll clean the board tomorrow with IPA and start measuring diodes, resistors, caps etc but can someone give me some guidance what to measure and what to look for?
Thanks!
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