"Alex Thomm" wrote in message
...
In article , Arfa Daily says...


"Alex Thomm" wrote in message
...
In article
,
says...

On Jan 17, 2:47=A0pm, AZ Nomad wrote:
On 17 Jan 2010 11:13:10 -0800, Alex Thomm
wrote=
:



In article ,
AZ=
Nomad
says...

On 17 Jan 2010 10:24:53 -0800, Alex Thomm
wro=
te:
In article
,
=
AZ Nomad
says...

On 17 Jan 2010 09:34:29 -0800, Alex Thomm

w=
rote:
In article , Alex Thomm says...

I have a Philips TV model 32MF505W/17 =A0

Actually, it's a 32MF605W/17

Are the sound line outputs also dead? =A0If not, you can run them
to
=
a
pair of amplified speakers.

I'm not knowlegable enough to know if the line outputs are dead or
not=
. =A0Is
there an easy way to find this out?

Connect a pair of computer speakers, or run them to an aux input on
a
stereo.
My computer speakers have a different connection. =A0I don't have a
ster=
eo on hand
with an aux input. =A0Thanks for the suggestions. =A0I'll see what I
can=
dig up to
test this out.

Getting a rca to stereo miniplug adapter is trivial. =A0Any target,
walmart, radio shack will have them. =A0Even a well stocked truck stop
will have one.

With all due respect, and I mean this in the most gentle way, if you
don't know how to verify if you have a line output, how do you think
you're going to troubleshoot an electronic circuit?

With patience. I was a bit dense at first but I understand now. Thanks
to all
for the help.


If something went pop, and magic smoke was released, there's a good chance
that you will find that the side has blown out of the audio output IC.

I think that's what I already suggested in layman's terms.


You did not suggest in your original post, in layman's terms or any other,
that you knew it was likely to be the audio IC that you were looking for, or
in exactly what way it would be damaged. You only said that you thought you
would be looking for "something visibly burned". The reason that I told you
that it was likely to be the audio IC, and that it may well have the side
blown off, is that if you don't know what you are looking for, which clearly
you don't, an IC damaged in such a way may not be immediately apparent.




To an experienced engineer with appropriate desoldering equipment,
and the skills to use it, replacement of such an IC is a trivial task.
However,
if you don't have those skills and equipment, which your post
would suggest you don't, you will struggle to remove the old IC from
the PCB, without doing damage to the tracking.

What is tracking?


I'm afraid that, much as I like to encourage people in the field of
electronic repair, in this case I have to agree with others, that perhaps
you should not be attempting to repair a TV set.

Without even the knowledge of what PCB tracking is (in this particular
context, it refers to the copper "tracks" which interconnect items on the
pcb), then I feel that taking on this repair, is beyond your abilities to do
safely and reliably.



Unless you feel confident to do this,



I am plenty confident. What do you suggest?


If you want to go one stage further, follow the wires back from the TV's
internal loudspeakers. They will (probably) land on the main PCB very near
to the audio IC, although that is not guaranteed to be the case, either. It
will likely be a flat plastic device with around 12 to 20 'staggered' pins
on it, and be bolted to a heatsink. Be aware, though, that there could be
other ICs in there as well, which match the same general description ...

Arfa