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How to Protect your Pioneer Projection TV from Damage While it is in Unstable Condition
Hello, I�m Robert Jones with Image Perfection. �In another video I promised you a video
that if you had a certain kind of high definition TV that is in unstable condition, I would
show you how to keep it safe on its way to being fixed. �Because if you don�t treat
it right on its way to being fixed, it could die on you. �So this is that video�
Does your set have an occasional blue flash, does it have fluctuating brightness, does
it maybe lose the picture every now and then, maybe lose the sound every now and then? �Maybe
not turn on at all? �These are all symptoms of cold solder joints on your power supply
board. �They are called intermittents. �I�m going to tell you what models are affected
here, and just listen up and see if yours is one of these. �There is the CRT Pioneer
Elite projection TV line, from back in the year 2000, 2001, and 2002. �These are still
good TVs. �These are 20-year service life sets. They are only half way through their
service life, so they are really valuable. �The Pioneer Elite Pro-510 HD, Pro 610-HD,
Pro 710-HD, Pro-520 HD, Pro 620-HD, Pro-720-HD. Also their non-Elite brothers were affected,
the �Pioneer SD-532-HD5, SD-533-HD5, SD-642-HD5 and SD-643-HD5. �
���� Now in the following model year, halfway through
the year they changed the power supply boards, so the first half of the model year they still
have the same power supply boards as the year before, so that means they all have this issue.
�And the last half of the year they didn�t. They redesigned the power supply board. �They
put it on the floor. �So, if you want to know whether yours is affected if you have
a model in that second model year, go to the back of your TV, follow the power cord to
where it goes into your set, and look up there in the ventilation holes, and see if there
is a circuit board that you can see, that�s vertically mounted against the bulkhead of
the set. ��If so, that�s the board in question. �If not, your �power supply
board is floor mounted and it doesn�t have these issues. If it was the newly designed
board, the solder in that is fine. �But the solder of the power supply boards in question
was way too thin. �There may be other issues too, but I know for sure it was way too thin
because when I was re-soldering them I easily tripled the amount of solder on these power
supply �boards. They needed it, they were thirsty for it. �What happens with a cold
solder joint is that, as it heats up and cools down with turn on and turn off, the leg goes
through the hole, gets solder to the pad, it expands and contracts, expands and contracts,
expands and contracts. �And I�ll tell you, if you use the set once a day for a year,
that alone is 365 cycles. �In 10 years you have gone through 3650 cycles, that�s a
lot of expansion and contraction, expansion and contraction, okay. �So, luckily enough,
this is the only board in the set that does that. �This doesn�t apply to any other
board in that set, and this is not an issue with other brands either. �So luckily enough,
if we can take care of this one board, we�re in.
Now if you have that second model year, the second model year that I talked about is the
Pioneer Pro-520HD, Pro-620HD, Pro-720HD, those are the Elites. And the non-Elites are the
SD-533-HD5 and the SD-643-HD5. ��Now this started happening when the sets got to be
about 4 years old, and it�s been happening ever since. �So we never know how long it
takes for these cold solder joints to finally start going so bad it starts appearing as
an issue. When I solder these boards, I re-solder them, I test them in the Pioneer Elite Pro
610 that I use for testing. �I run them out for a while and then I give you a worldwide
lifetime warranty on my work, so you never have to worry about this again.
They are very hearty boards, they are the heart of your set. �They go everywhere in
your set. �They supply power to everywhere in the set. ��And luckily enough, being
a hearty board, there is no domino effect, this is the amazing thing about the design
of this board, there is no domino effect. �If something goes bad, if something gets
disconnected, it doesn�t cause something to blow up farther down on the board, the
board stays good. �As soon as they get re-soldered they are good from then on, forever. �That�s
why I give a lifetime warranty on it. So, what you gotta do, now this is the hard
part, what you gotta do if you have a power supply board that�s affected like this,
or is going to be affected like this but isn�t yet, but you remember this video, and come
back to it, you have to stop using your set. �You can�t even watch video on it, you
can�t even let it warm up to normal operating temperature even once, until it gets fixed
properly. �The reason for that is because the farther down line cold solder joints are
the dangerous ones. ��They are the ones that are going to damage something, they are
going to send a lightning bolt down into your set. �The early cold solder joints, they
are kind of like a warning shot across the bow. You can see the fluctuations, you can
see the intermittence. �
If you catch it early, if your set turns on from dead cold with no problem at all and
these issues only start happening after it warms up, you�re in good shape. �Then
you can send the power supply board to me, I can fix it and can lifetime warranty it.
�If you feel like you have some chops, you know some soldering but you�re not really
experienced, so you only want to resolder a few of them and you find those that are
bad now and you re-solder those, you�re setting yourself up for damage later, you�re
setting yourself up for a fall. �Because the later ones are the ones that are dangerous.
�So the only way to fix this issue properly and permanently is to completely re-solder
the whole power supply board. �
The only things you don�t have to worry about are the heat sinks, you don�t need
to do those. Anything that was re-soldered before by Pioneer, before they actually put
the unit out, you don�t have to worry about those. �And the test points. �Those are
the things you don�t have to worry about. �Everything else on that board has to be
re-soldered. �It takes forever. �It�s a tedious job but somebody has to do it. �So
if you�re not a professional in the field, please don�t even try. �There is far too
much riding on it. �It�s like needing dental work, it�s not going to get better
on its own.
So, I want to show you something. �This is one of the boards in question. �Notice
the power transformer, the huge heat sync, other heat syncs, heat sync, heat sync, heat
sync, heat sync, heat sync, heat sync, heat sync, raised power resisters, big, big resisters
raised way off the board for ventilation purposes. �A couple here, there. �This board produces
lots and lots of heat. �That�s why we have this issue of the expansion, contraction,
expansion, contraction, and eventually a cold solder joint forms.
Now take a look at this, I want you to look at the lustre of this board. �It�s very
flat, it isn�t very shiny. �I�m going to get closer so you can see what I�m talking
about. �These solder joints are dull and lifeless. �Now let�s look at a board that
I�ve re-soldered, a very different picture. �Shiny, bright, gleaming. �Let�s get
in close. �Now these solder joints are never going to go out, I lifetime warranty it. ��So
that�s what the board looks like. �Let�s see what a solder joint looks like. �These
are actual pictures taken by me of power supply boards that have been sent to me. �Let me
get the pointer. �You can see here that crack there, that is on its way to going 360,
there�s one here too. �On this I see, IC-204, which operates the convergence ICs,
all 5 of these legs have cold solder joints, here, here, here and here, especially here.
�On this set, all 5 of these have the halo. �Its not advanced yet, but its going to
be. �There is no way that is not going to go out later, it�s only a matter of time.
�Here are a couple that have gone out big time, and as you can see there�s black here.
�The brown don�t worry about, that�s resin, that�s fine. �But the black, they
actually sparked. �This one, and this one. �That can be dangerous. Here�s a couple
more shots, this one and this one. �Here�s a close-up of this really bad one, look at
this incredible crevice here. �And you can see its actually started to curl up a little
bit. �Here�s one where the pin has actually raised itself up off the board, and that�s
actually a gap right here and its obviously almost completely 360. �Here�s one that
is not really bad yet, but it�s not trustworthy in the least, its on its way to going bad,
there�s no going back. �Now, on other parts of the board, you can see solder points
that I�ve done, because I interrupted my soldering to take these pictures. �These
joints will never go out. �They are nice and rounded, they are gleaming and glossy.
�You are not going to have a problem with those solder joints, those are not cold solder
joints. �Here�s some more that are ready to go. �Here�s a whole row, starting with
this one. �Now this one isn�t too bad yet, but as you go down the row here, you
can see the little circle around each of those legs, the little halo, almost all of them
have it. �So eventually all of them will have it. �And here�s a close-up of the
most prominent one in that row, there�s no mistaking that crack there. �And this
is what�s happening all over the board. �If it hasn�t happened yet, its on its
way to happening.
So you can�t just fix what�s bad now. �In fact, technicians that just fix the
bad ones and give it back to you are irresponsible. �To have this thing last, �you have to
resolder the whole board. �I�ve even been sent power supply boards that Pioneer has
rebuilt, and I had to treat them like normal boards because Pioneer didn�t do it the
way I do either. �The only way to do it, to make it last, it will be a permanent fix,
is to do it the way I do it. �Now if you�re a professional in the field and you know your
stuff, go for it, fix your board. �Terry Whitener did that. �Terry Whitener has 3
videos on this channel on YouTube, look them up. �He did his own �Pioneer Elite Pro
720, its still working, and then he had me down to do the rest. �But he got the thing
stabilized again.
So, I want you to know, I will be here. �I�m not going anywhere. �I want these sets to
last. �I want to fix as many of these things as I can, and as many as need fixing, I will
be here to fix them. �If you want to reach me, �you can reach me at www.ProjectionTvTroubleshootingAdvice.com
or my email, Bob@imageperfection.com So thanks for listening.