burnt power supply for Lexmark z65n printer

[Edw]

My Lexmark z65n burnt its power supply; all the lights began flashing
on the front and I couldn't
turn it off just before this happened. Did the printer suddenly draw
too much power to cause it?

It is ADP-25FP rated to output 30 volts .83 Amps; I took it apart and
see that something labelled Z51D
is cracked in half..it looks like a resister.except it doesn't have
any bands on it. Lots for burnt around it near the transformer coil.

There is something label T2A/250V right as the current enters the board
that is also blown. It is
soldered on top of a circle on the board(does the circle mean
something?). At least my ohmmeter
doesn't show connectivity across it, It looks sorta like a fuse,
except it is soldered into the board.

Are these standard parts that I can just buy somewhere and solder back
in to make it work? OTOH
I see the power supply on eBay for $20, or so, but it's more fun making
the old one work!

thanks for any advice... how to find parts, etc.

Ed

 

[[email protected]]

Is the printer even worth the $20 for a replacement power supply?

In the interest in safety, mainly yours, you really should not try and
repair this given the information you provided in your post.

"There is something label T2A/250V right as the current enters the board

that is also blown."

"It is ADP-25FP rated to output 30 volts .83 Amps; I took it apart and

see that something labelled Z51D
is cracked in half..it looks like a resister.except it doesn't have
any bands on it."

 

[James Sweet]

My Lexmark z65n burnt its power supply; all the lights began flashing
on the front and I couldn't
turn it off just before this happened. Did the printer suddenly draw
too much power to cause it?

It is ADP-25FP rated to output 30 volts .83 Amps; I took it apart and
see that something labelled Z51D
is cracked in half..it looks like a resister.except it doesn't have
any bands on it. Lots for burnt around it near the transformer coil.

There is something label T2A/250V right as the current enters the board
that is also blown. It is
soldered on top of a circle on the board(does the circle mean
something?). At least my ohmmeter
doesn't show connectivity across it, It looks sorta like a fuse,
except it is soldered into the board.

Are these standard parts that I can just buy somewhere and solder back
in to make it work? OTOH
I see the power supply on eBay for $20, or so, but it's more fun making
the old one work!

thanks for any advice... how to find parts, etc.

Ed

The blown thing by the entry is a 2A fuse, the other part sounds like a
zener diode from the label on the board. Something else has very likely
failed if the fuse blew though, you should check the chopper transistor
and any diodes, and look for cracked solder joints or bulging
capacitors, either of which could have caused the failure.