How to solder live 2A glass fuse to Power supply board

[James Sweet]

"???Seventh Prince" <seventhprince@gmail.com> wrote in message
news:430fa946$1_1@news.tm.net.my...

Am planning to solder fuse holder via wires to the PSU board as the
layout of the board for the original 2A PCB solderable fuse is smaller
than typical glass fuse.

It's easy enough to do, but if the fuse blew there's something else wrong
you'll have to fix first.

 

[七少爷Seventh Prince]

Oh, I did not see the 2A rating. Sorry. This is an internal fuse which
means that something is not right with the current limiter circuit.

2A 250V relay type fuse which is expensive (RM1 each). The advise from
my superior is that the rectifier is faulty.

What type of PSU is it, any id? Maybe there is a schematic for it.

There's a marking "TPG40/65H" . It is a typical DC12V PSU. Newer PSU
models are made by Meanwell.

And, could I use 470 Ohm preset in place of original 500 Ohm ones?

Thanks

 

[gb]

"???Seventh Prince" <seventhprince@streamyx.com> wrote in message
news:43111ddb_1@news.tm.net.my...

Oh, I did not see the 2A rating. Sorry. This is an internal fuse which
means that something is not right with the current limiter circuit.

2A 250V relay type fuse which is expensive (RM1 each). The advise from my
superior is that the rectifier is faulty.

A DVM or VOM can determine this in less than 20 seconds !

Got one?

Linear Power Supply education and troubleshooting
http://www.kbt-dc-supplies.com/index.php


gb

 

[Fhurqaan Hamid]

ridz wrote:

Seventh Prince wrote:


Hi,

Any advise for How to solder live 2A glass fuse to Power supply
board
in exchange for the pcb solder 2A fuse. And what type of power
wire
should be used to connect the glass fuse to the PSU board? I need
to solder the wire to the glass fuse in order for further
soldering to the PSU board.

Have tried with thin insulated signal wire and ceramic fuse wire
but PSU will blow out fuse each time. AC voltage is 240V.



If the 2A rating is correct and the fuse keep blowing every time,
then I suspect that the PSU board is faulty. I suggest you chuck
the PSU and get a new one.

Yup, sounds like voltage regulator is kaput.

--
All replies to this address are routed to /dev/null
$HOME=/dev/null
Callsign 9W2GU

You need only two tools: WD-40 and Duct Tape.
If it doesn't move and it should, use WD-40.
If it moves and shouldn't, use the duct tape.

* TagZilla 0.059 *
http://tagzilla.mozdev.org