Easymill 3 repair - Transistor R3780? from CD-20 driver

cncbasher · Post by **cncbasher** » Mon 17 Nov , 2008 18:13 pm

Anyone know what a R3780 Transistor is ?
repairing a CD-20 PKS Digiplan drive from my easymill 3 ,

thanks all

Dave

Andycnc · Post by **Andycnc** » Fri 21 Nov , 2008 11:26 am

looking on www.datasheetarchive.com seems to show that part as a power-rectifier diode. Not sure this is right- I couldn't see anyhting on my CD20's in that package. Where is it on the board (ref heatsink upwards, connector facing you)?
any other numbers oj this device that might assist?

Happy to help where possible

Andy

cncbasher · Post by **cncbasher** » Fri 21 Nov , 2008 21:57 pm

Q32 is the board designation ,
their in to220 type cases , on the main pcb theirs 2 types so presume NPN & PNP types

btw reply'd to your pm also

regards
Dave

Andycnc · Post by **Andycnc** » Sat 22 Nov , 2008 12:36 pm

on my cd20s Q32 is a BD242. Just in case the designations have changed, it's layed down- not on the heatsink, top left corner near connector.

If you have any problem getting that specific transistor and need help to source it/an alternative, let me know.

Andy

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