Rally Mfg. power inverter problem

C

CHale

Guest
Someone gave me a dead 600 W DC/AC inverter made by Rally Mfg. I
found that the solder joint on the + alligator clip lead was faulty
and figured I'd found the easy answer; but no. It still wants to blow
out the two 40 A ATC-type fuses when attempting to power it off the
car battery (mighty scare fuse there, by the way...!) I actually was
unable to find 40 A fuses locally, and so tried a pair of 30's the
next time; maybe that was a bad idea? (there is no AC load at
present, so I figured surely the thing would be ok with a bit lower
fuse values, if it's ok now...) The only thing I've done so far is
clean up the miserable mess on the bottom of the PC board, totally
covered with flux residue. Thought a power transistor or regulator or
whatever the bank of heat-sunk packages are, might have begun to short
or something. When I go to the Rally Mfg website, I find in
non-functional, so haven't been able to find a schematic or anything.
No obviously toasted components anywhere to be seen. The fan and the
LED and the buzzer sound briefly, before the fuses go. Any ideas,
electronics gurus?
Charley Hale
 
They do not sell or give out schematics. Usually the power output drivers in
these go faulty in many of these units. If I remember correctly, they will
tell you to send the unit to them for service rather than sell you the
parts.


Greetings,

Jerry Greenberg

--

"CHale" <chale4@qwest.net> wrote in message
news:b02fb50e.0402211324.b0e0fa8@posting.google.com...
Someone gave me a dead 600 W DC/AC inverter made by Rally Mfg. I
found that the solder joint on the + alligator clip lead was faulty
and figured I'd found the easy answer; but no. It still wants to blow
out the two 40 A ATC-type fuses when attempting to power it off the
car battery (mighty scare fuse there, by the way...!) I actually was
unable to find 40 A fuses locally, and so tried a pair of 30's the
next time; maybe that was a bad idea? (there is no AC load at
present, so I figured surely the thing would be ok with a bit lower
fuse values, if it's ok now...) The only thing I've done so far is
clean up the miserable mess on the bottom of the PC board, totally
covered with flux residue. Thought a power transistor or regulator or
whatever the bank of heat-sunk packages are, might have begun to short
or something. When I go to the Rally Mfg website, I find in
non-functional, so haven't been able to find a schematic or anything.
No obviously toasted components anywhere to be seen. The fan and the
LED and the buzzer sound briefly, before the fuses go. Any ideas,
electronics gurus?
Charley Hale
 
There's some information and schematics here:
http://www.bfisk.demon.co.uk/SkyTronic/skytronic.html

which may or may not be similar to your dead inverter.

Good luck!

Richard

On Sun, 22 Feb 2004 02:16:44 -0500, "Jerry G." <jerryg50@hotmail.com>
wrote:

They do not sell or give out schematics. Usually the power output drivers in
these go faulty in many of these units. If I remember correctly, they will
tell you to send the unit to them for service rather than sell you the
parts.


Greetings,

Jerry Greenberg
Click to expand...
 
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