I posted about my Toshiba (CX32D60) a few months ago when I was going to
attempt a repair. The picture on it went to where people on the screen were
all squatty and cone headed. The general consensus was that it was a
vertical IC problem. I have some time now and have it torn apart. I'm a
rookie and feeling my way around. I've managed to not shock the **** out of
myself and have located the vertical section of the board. I guess I should
be desoldering the IC and the caps in the area. I think I remember someone
saying in a reply post to someone else, that the caps will have similar
numbers. The majority of them in the area are numbered C300 something, and
there are others in the area numbered: CD101, CD10,C823,C821. What looks
like the vertical IC is, I guess, IC301 with the markings of LA783 on top
and 4C5 under it. I have had great success using wick and removed a half a
dozen so far. I guess my question is, do I need to remove and replace all of
the caps in the neighborhood or just the ones in the C300 range, and does
the IC probably need replacing? Is it usually just the caps or both that are
bad? Also where does one get the replacement parts? I went to "Fry's
Electronics" and found about one in ten hooks that had anything on them. I
haven't done a real search for a real electronics store in the area yet. I
live in So. California, the LA airport area. Do people usually buy online or
try to find a store? Thank in advance for any replies and help.

"Forrest" wrote in message
...
I posted about my Toshiba (CX32D60) a few months ago when I was going to
attempt a repair. The picture on it went to where people on the screen were
all squatty and cone headed. The general consensus was that it was a
vertical IC problem. I have some time now and have it torn apart. I'm a
rookie and feeling my way around. I've managed to not shock the **** out of
myself and have located the vertical section of the board. I guess I should
be desoldering the IC and the caps in the area. I think I remember someone
saying in a reply post to someone else, that the caps will have similar
numbers. The majority of them in the area are numbered C300 something, and
there are others in the area numbered: CD101, CD10,C823,C821. What looks
like the vertical IC is, I guess, IC301 with the markings of LA783 on top
and 4C5 under it. I have had great success using wick and removed a half a
dozen so far. I guess my question is, do I need to remove and replace all
of the caps in the neighborhood or just the ones in the C300 range, and
does the IC probably need replacing? Is it usually just the caps or both
that are bad? Also where does one get the replacement parts? I went to
"Fry's Electronics" and found about one in ten hooks that had anything on
them. I haven't done a real search for a real electronics store in the area
yet. I live in So. California, the LA airport area. Do people usually buy
online or try to find a store? Thank in advance for any replies and help.



It's probably just the caps, I don't think I've ever replaced the IC in a
Toshiba. IIRC there's only 2 or 3 caps in this circuit, usually they're red.

James Sweet wrote:
"Forrest" wrote in message
...
I posted about my Toshiba (CX32D60) a few months ago when I was going to
attempt a repair. The picture on it went to where people on the screen were
all squatty and cone headed. The general consensus was that it was a
vertical IC problem. I have some time now and have it torn apart. I'm a
rookie and feeling my way around. I've managed to not shock the **** out of
myself and have located the vertical section of the board. I guess I should
be desoldering the IC and the caps in the area. I think I remember someone
saying in a reply post to someone else, that the caps will have similar
numbers. The majority of them in the area are numbered C300 something, and
there are others in the area numbered: CD101, CD10,C823,C821. What looks
like the vertical IC is, I guess, IC301 with the markings of LA783 on top
and 4C5 under it. I have had great success using wick and removed a half a
dozen so far. I guess my question is, do I need to remove and replace all
of the caps in the neighborhood or just the ones in the C300 range, and
does the IC probably need replacing? Is it usually just the caps or both
that are bad? Also where does one get the replacement parts? I went to
"Fry's Electronics" and found about one in ten hooks that had anything on
them. I haven't done a real search for a real electronics store in the area
yet. I live in So. California, the LA airport area. Do people usually buy
online or try to find a store? Thank in advance for any replies and help.



It's probably just the caps, I don't think I've ever replaced the IC in a
Toshiba. IIRC there's only 2 or 3 caps in this circuit, usually they're red.


I'd caution the OP about removing all those caps until he gets
replacements. Otherwise, keep really good notes, preferably digital
images. Nothing sucks worse than taking something apart and forgetting
how to put it back together....

jak

"James Sweet" wrote in message
news:qpSOj.1549$Mm1.39@trndny07...


"Forrest" wrote in message
...
I posted about my Toshiba (CX32D60) a few months ago when I was going to
attempt a repair. The picture on it went to where people on the screen
were all squatty and cone headed. The general consensus was that it was a
vertical IC problem. I have some time now and have it torn apart. I'm a
rookie and feeling my way around. I've managed to not shock the **** out
of myself and have located the vertical section of the board. I guess I
should be desoldering the IC and the caps in the area. I think I remember
someone saying in a reply post to someone else, that the caps will have
similar numbers. The majority of them in the area are numbered C300
something, and there are others in the area numbered: CD101,
CD10,C823,C821. What looks like the vertical IC is, I guess, IC301 with
the markings of LA783 on top and 4C5 under it. I have had great success
using wick and removed a half a dozen so far. I guess my question is, do I
need to remove and replace all of the caps in the neighborhood or just the
ones in the C300 range, and does the IC probably need replacing? Is it
usually just the caps or both that are bad? Also where does one get the
replacement parts? I went to "Fry's Electronics" and found about one in
ten hooks that had anything on them. I haven't done a real search for a
real electronics store in the area yet. I live in So. California, the LA
airport area. Do people usually buy online or try to find a store? Thank
in advance for any replies and help.



It's probably just the caps, I don't think I've ever replaced the IC in a
Toshiba. IIRC there's only 2 or 3 caps in this circuit, usually they're
red.

That's good news about the IC, since I haven't removed it yet. Sounds like I
might have removed some caps for nothing. You're right about it having three
caps that are colored reddish or brownish, but definitely different than the
others. I have those removed and marked. They a C305-2uf-50 v,
C311-100uf-35v and C-342-1uf-50v. They are numbered similarly to others,
why are they a different color and are they special in any way? So, the
other caps are not part of the Vertical circuit or they just typically don't
go bad? What about the ones that are numbered in the C-800 range? Not in the
circuit, and probably don't need to be replaced?

"jakdedert" wrote in message
. ..
James Sweet wrote:
"Forrest" wrote in message
...
I posted about my Toshiba (CX32D60) a few months ago when I was going to
attempt a repair. The picture on it went to where people on the screen
were all squatty and cone headed. The general consensus was that it was
a vertical IC problem. I have some time now and have it torn apart. I'm
a rookie and feeling my way around. I've managed to not shock the ****
out of myself and have located the vertical section of the board. I
guess I should be desoldering the IC and the caps in the area. I think I
remember someone saying in a reply post to someone else, that the caps
will have similar numbers. The majority of them in the area are numbered
C300 something, and there are others in the area numbered: CD101,
CD10,C823,C821. What looks like the vertical IC is, I guess, IC301 with
the markings of LA783 on top and 4C5 under it. I have had great success
using wick and removed a half a dozen so far. I guess my question is, do
I need to remove and replace all of the caps in the neighborhood or just
the ones in the C300 range, and does the IC probably need replacing? Is
it usually just the caps or both that are bad? Also where does one get
the replacement parts? I went to "Fry's Electronics" and found about one
in ten hooks that had anything on them. I haven't done a real search for
a real electronics store in the area yet. I live in So. California, the
LA airport area. Do people usually buy online or try to find a store?
Thank in advance for any replies and help.



It's probably just the caps, I don't think I've ever replaced the IC in a
Toshiba. IIRC there's only 2 or 3 caps in this circuit, usually they're
red.
I'd caution the OP about removing all those caps until he gets
replacements. Otherwise, keep really good notes, preferably digital
images. Nothing sucks worse than taking something apart and forgetting
how to put it back together....

jak

Yeah, I know what you mean. More than once I've taken something apart and
been interrupted in the process with "honey dooos" and such, and not
remembered how it went back together. I'm drawing a good diagram, taking
notes and labeling them with masking tape. Still, let too much time go bye
between tearing apart and reassembling and **** happens.

"Forrest" wrote in message
...

"jakdedert" wrote in message
. ..
James Sweet wrote:
"Forrest" wrote in message
...
I posted about my Toshiba (CX32D60) a few months ago when I was going
to attempt a repair. The picture on it went to where people on the
screen were all squatty and cone headed. The general consensus was that
it was a vertical IC problem. I have some time now and have it torn
apart. I'm a rookie and feeling my way around. I've managed to not
shock the **** out of myself and have located the vertical section of
the board. I guess I should be desoldering the IC and the caps in the
area. I think I remember someone saying in a reply post to someone
else, that the caps will have similar numbers. The majority of them in
the area are numbered C300 something, and there are others in the area
numbered: CD101, CD10,C823,C821. What looks like the vertical IC is, I
guess, IC301 with the markings of LA783 on top and 4C5 under it. I have
had great success using wick and removed a half a dozen so far. I guess
my question is, do I need to remove and replace all of the caps in the
neighborhood or just the ones in the C300 range, and does the IC
probably need replacing? Is it usually just the caps or both that are
bad? Also where does one get the replacement parts? I went to "Fry's
Electronics" and found about one in ten hooks that had anything on
them. I haven't done a real search for a real electronics store in the
area yet. I live in So. California, the LA airport area. Do people
usually buy online or try to find a store? Thank in advance for any
replies and help.



It's probably just the caps, I don't think I've ever replaced the IC in
a Toshiba. IIRC there's only 2 or 3 caps in this circuit, usually
they're red.
I'd caution the OP about removing all those caps until he gets
replacements. Otherwise, keep really good notes, preferably digital
images. Nothing sucks worse than taking something apart and forgetting
how to put it back together....

jak

Yeah, I know what you mean. More than once I've taken something apart and
been interrupted in the process with "honey dooos" and such, and not
remembered how it went back together. I'm drawing a good diagram, taking
notes and labeling them with masking tape. Still, let too much time go bye
between tearing apart and reassembling and **** happens.


Usually just C305 & C308 on this model. And resolder the IC.

Leonard

You're right about it having three caps that are colored reddish
or brownish, but definitely different than the others. I have those
removed and marked. They a C305-2uf-50v, C311-100uf-35v
and C-342-1uf-50v. They are numbered similarly to others, why
why are they a different color and are they special in any way?
So, the other caps are not part of the vertical circuit or they just
typically don't go bad? What about the ones that are numbered
in the C-800 range? Not in the circuit, and probably don't need
to be replaced?

Capacitors aren't horribly expensive, and if you buy them by mail order,
most companies charge a minimum. So it doesn't hurt to shotgun them.

Forrest wrote:

Sounds like I
might have removed some caps for nothing.

This problem almost always arises when repairs are tried with
standard recipes. Normally there is no reason to remove an
electrolytic cap, if it is not
- a high voltage type (maybe leaks)
- located at a hot point on the board (maybe dried up) or
- looking exploded (is shorted).

Your problem does sound as if your pictures geometry is at fault.
If height and width are ok, then try to find out, which geometry
adjusters do still work and which not. Then try to find out, how
those circuits work and why yours might not.

Regards,
H.

PS
With electrolytic cap, do not only remember where it sat,
but too, which way round.

"Heinz Schmitz" wrote in message
...
Forrest wrote:

Sounds like I
might have removed some caps for nothing.

This problem almost always arises when repairs are tried with
standard recipes. Normally there is no reason to remove an
electrolytic cap, if it is not
- a high voltage type (maybe leaks)
- located at a hot point on the board (maybe dried up) or
- looking exploded (is shorted).

Your problem does sound as if your pictures geometry is at fault.
If height and width are ok, then try to find out, which geometry
adjusters do still work and which not. Then try to find out, how
those circuits work and why yours might not.

Regards,
H.


In this case, these capacitors are almost always bad. It's easy enough to
just replace the ones that usually fail, sure they may not always all be
bad, but it's cheap, how much is your time worth? I see a LOT of bad
electrolytics in all sorts of equipment, many times they look just fine, but
the ESR has gone up so much they don't perform well in circuit.

"William Sommerwerck" wrote in message
. ..
You're right about it having three caps that are colored reddish
or brownish, but definitely different than the others. I have those
removed and marked. They a C305-2uf-50v, C311-100uf-35v
and C-342-1uf-50v. They are numbered similarly to others, why
why are they a different color and are they special in any way?
So, the other caps are not part of the vertical circuit or they just
typically don't go bad? What about the ones that are numbered
in the C-800 range? Not in the circuit, and probably don't need
to be replaced?

Capacitors aren't horribly expensive, and if you buy them by mail order,
most companies charge a minimum. So it doesn't hurt to shotgun them.

I'm not having any luck finding parts locally. Where is a good place to guy
them online?

"Forrest" wrote in message
...

"William Sommerwerck" wrote in message
. ..
You're right about it having three caps that are colored reddish
or brownish, but definitely different than the others. I have those
removed and marked. They a C305-2uf-50v, C311-100uf-35v
and C-342-1uf-50v. They are numbered similarly to others, why
why are they a different color and are they special in any way?
So, the other caps are not part of the vertical circuit or they just
typically don't go bad? What about the ones that are numbered
in the C-800 range? Not in the circuit, and probably don't need
to be replaced?

Capacitors aren't horribly expensive, and if you buy them by mail order,
most companies charge a minimum. So it doesn't hurt to shotgun them.

I'm not having any luck finding parts locally. Where is a good place to
guy them online?


Digi-Key, Mouser, MCM, Parts Express, Jameco, JDR Microdevices, All
Electronics, Electronic Goldmine, there's many others.

"James Sweet" wrote in message
news:qpSOj.1549$Mm1.39@trndny07...


"Forrest" wrote in message
...
I posted about my Toshiba (CX32D60) a few months ago when I was going to
attempt a repair. The picture on it went to where people on the screen
were all squatty and cone headed. The general consensus was that it was a
vertical IC problem. I have some time now and have it torn apart. I'm a
rookie and feeling my way around. I've managed to not shock the **** out
of myself and have located the vertical section of the board. I guess I
should be desoldering the IC and the caps in the area. I think I remember
someone saying in a reply post to someone else, that the caps will have
similar numbers. The majority of them in the area are numbered C300
something, and there are others in the area numbered: CD101,
CD10,C823,C821. What looks like the vertical IC is, I guess, IC301 with
the markings of LA783 on top and 4C5 under it. I have had great success
using wick and removed a half a dozen so far. I guess my question is, do I
need to remove and replace all of the caps in the neighborhood or just the
ones in the C300 range, and does the IC probably need replacing? Is it
usually just the caps or both that are bad? Also where does one get the
replacement parts? I went to "Fry's Electronics" and found about one in
ten hooks that had anything on them. I haven't done a real search for a
real electronics store in the area yet. I live in So. California, the LA
airport area. Do people usually buy online or try to find a store? Thank
in advance for any replies and help.



It's probably just the caps, I don't think I've ever replaced the IC in a
Toshiba. IIRC there's only 2 or 3 caps in this circuit, usually they're
red.

I've been looking at caps at various web pages and am going cross-eyed.
What's up with the different color of these caps in question? Is it just a
certain brand using a different color? To replace caps, is there anything
to know other than match the "uf" and the voltage ... and of course, install
them with the polarity correct? I thought I read somewhere about being able
to go, somewhat, "over size" with the voltage ... or did I dream that?

I've been looking at caps at various web pages and am going cross-eyed.
What's up with the different color of these caps in question? Is it just a
certain brand using a different color? To replace caps, is there anything
to know other than match the "uf" and the voltage ... and of course,
install them with the polarity correct? I thought I read somewhere about
being able to go, somewhat, "over size" with the voltage ... or did I
dream that?


The color is arbitrary, depends on the brand, manufacturing line, date, etc,
it's just coincidence that most of the caps in the vertical area are
reddish.

You want to match the uF rating, voltage can go higher, but I would try to
keep it within 200% of the original rating, if you go too high the ESR tends
to rise as well. Even the uF rating is often not critical at all, but don't
substitute that unless you know what you're doing.

"James Sweet" wrote in message
news:0dbPj.3552$XY1.3228@trndny03...


I've been looking at caps at various web pages and am going cross-eyed.
What's up with the different color of these caps in question? Is it just
a certain brand using a different color? To replace caps, is there
anything to know other than match the "uf" and the voltage ... and of
course, install them with the polarity correct? I thought I read
somewhere about being able to go, somewhat, "over size" with the voltage
... or did I dream that?


The color is arbitrary, depends on the brand, manufacturing line, date,
etc, it's just coincidence that most of the caps in the vertical area are
reddish.

You want to match the uF rating, voltage can go higher, but I would try to
keep it within 200% of the original rating, if you go too high the ESR
tends to rise as well. Even the uF rating is often not critical at all,
but don't substitute that unless you know what you're doing.

OK, and what about the temperature rating? Some are 105 C and others are 85
C. On this web page they are all 85 C. Are they OK to use where the old ones
were 105?
http://www.partsexpress.com/webpage....Group_ID= 155

"Forrest" wrote in message
t...

"James Sweet" wrote in message
news:0dbPj.3552$XY1.3228@trndny03...


I've been looking at caps at various web pages and am going cross-eyed.
What's up with the different color of these caps in question? Is it just
a certain brand using a different color? To replace caps, is there
anything to know other than match the "uf" and the voltage ... and of
course, install them with the polarity correct? I thought I read
somewhere about being able to go, somewhat, "over size" with the voltage
... or did I dream that?


The color is arbitrary, depends on the brand, manufacturing line, date,
etc, it's just coincidence that most of the caps in the vertical area are
reddish.

You want to match the uF rating, voltage can go higher, but I would try
to keep it within 200% of the original rating, if you go too high the ESR
tends to rise as well. Even the uF rating is often not critical at all,
but don't substitute that unless you know what you're doing.

OK, and what about the temperature rating? Some are 105 C and others are
85 C. On this web page they are all 85 C. Are they OK to use where the old
ones were 105?
http://www.partsexpress.com/webpage....Group_ID= 155


I would use 105c for all of them given the choice, 85c will work, but likely
won't last as long.