Hi,

I am servicing a LG model 26LX2D 26" LCD TV that is "dead" (won't turn
on). The only sign of activity is a red blinking light near the remote sensor
receiver.

I do not have a SM for this TV yet. I don't want to risk ordering the
PS unit unless....

Has anyone repaired this model LG TV (dead)?

Thank You in Advance, John

PS, Remove "ine" from my email address

wrote in message
...
Hi,

I am servicing a LG model 26LX2D 26" LCD TV that is "dead" (won't
turn
on). The only sign of activity is a red blinking light near the remote
sensor
receiver.

I do not have a SM for this TV yet. I don't want to risk ordering
the
PS unit unless....

Has anyone repaired this model LG TV (dead)?

Thank You in Advance, John

PS, Remove "ine" from my email address



Not unusual for LGs to suffer bad PSU caps. Look first for any secondary
side ones that are bulging, and if you can't see any, go over them all with
an ESR meter. Probably about an 80% shot that caps are the cause of its
troubles ...

Arfa

On Sat, 04 Jun 2011 08:06:39 -0400, wrote:

I am servicing a LG model 26LX2D 26" LCD TV that is "dead" (won't turn
on). The only sign of activity is a red blinking light near the remote sensor
receiver.

I had the same problem with a similar LG. The bulging caps were
obvious.

There's also a problem when the flash ram with the firmware gets
trashed in a power glitch. See:
http://www.avsforum.com/avs-vb/showthread.php?t=1225883
Post #14.

If the TV suddenly refused to turn on, with no prior symptoms, it
might be the firmware. If the TV was balky at turning on, or required
holding down the button for excessive periods or multiple times, then
it's probably bulging electrolytics in the power supply. The bulging
electrolytics are a far more common problem.

I do not have a SM for this TV yet. I don't want to risk ordering the
PS unit unless....

You don't need to replace the entire power supply, just the bad caps:
http://www.fixya.com/support/t8741824-wont_rurn

There are vendors that sell shotgun replacement kits, but I can't seem
to find one specifically for the 26LX2D. However, this vendor can
prepare a custom kit for you:
http://lcdalternatives.auctivacommerce.com/LG-C196328.aspx?sid=19447
http://stores.ebay.com/LCDALTERNATIVES/LG-/_i.html (same as above)

If you're desperate:
http://lge.andrewselectronics.com
$130 for the power supply. Ouch.
--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

"Jeff Liebermann" wrote in message
...
On Sat, 04 Jun 2011 08:06:39 -0400, wrote:

I am servicing a LG model 26LX2D 26" LCD TV that is "dead" (won't
turn
on). The only sign of activity is a red blinking light near the remote
sensor
receiver.

I had the same problem with a similar LG. The bulging caps were
obvious.

There's also a problem when the flash ram with the firmware gets
trashed in a power glitch. See:
http://www.avsforum.com/avs-vb/showthread.php?t=1225883
Post #14.

If the TV suddenly refused to turn on, with no prior symptoms, it
might be the firmware. If the TV was balky at turning on, or required
holding down the button for excessive periods or multiple times, then
it's probably bulging electrolytics in the power supply. The bulging
electrolytics are a far more common problem.

I do not have a SM for this TV yet. I don't want to risk ordering
the
PS unit unless....

You don't need to replace the entire power supply, just the bad caps:
http://www.fixya.com/support/t8741824-wont_rurn

There are vendors that sell shotgun replacement kits, but I can't seem
to find one specifically for the 26LX2D. However, this vendor can
prepare a custom kit for you:
http://lcdalternatives.auctivacommerce.com/LG-C196328.aspx?sid=19447
http://stores.ebay.com/LCDALTERNATIVES/LG-/_i.html (same as above)

If you're desperate:
http://lge.andrewselectronics.com
$130 for the power supply. Ouch.
--
Jeff Liebermann

On a lot of these LCD TVs, if you leave the cap problem for too long, with
the startup getting slower and slower as the offending caps get worse, it
can result in corrupt EEPROM data, so if the OP has only just started having
trouble with it, there's a good chance that it's just caps. If he has been
struggling to get it to come on for some weeks, then the fact that it won't
now come on at all, *might* indicate that the EEPROM has now taken a hit ...

Arfa

On Sun, 5 Jun 2011 01:32:21 +0100, "Arfa Daily"
wrote:

On a lot of these LCD TVs, if you leave the cap problem for too long, with
the startup getting slower and slower as the offending caps get worse, it
can result in corrupt EEPROM data, so if the OP has only just started having
trouble with it, there's a good chance that it's just caps. If he has been
struggling to get it to come on for some weeks, then the fact that it won't
now come on at all, *might* indicate that the EEPROM has now taken a hit ...

Arfa

Good point. I hadn't thought of it that way. Of what I can remember
from trying to concentrate while the owners 2 year old was in turbo
screaming mode, was that the TV was giving them on/off problems for
about 6 months before finally it quit. The LG 32LX1D was purchased in
about 2007, so it was well out of warranty. Same symptoms as the OP.

When I opened it up, the bulging caps in the power supply were
obvious. I replaced two that were bulging, and three more that failed
with the ESR meter. I didn't do anything with the other boards.

I've only fixed one LG that required reloading the firmware. I don't
recall the model number. The TV just would not turn on after a power
glitch. Prior to that, it operated normally. The customer (an
engineer) then attempted to reflash the firmware using the wrong
firmware, which bricked the TV. I found the correct firmware, and
flashed it, which fixed it.

The proposed symptom analysis was my guesswork, which by your
comments, it's going to work.

Note: I don't fix many LCD TV's. Maybe 3 per year. I fix many more
LCD monitors (which are much much much easier).

--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

"Jeff Liebermann" wrote in message
...
On Sun, 5 Jun 2011 01:32:21 +0100, "Arfa Daily"
wrote:

On a lot of these LCD TVs, if you leave the cap problem for too long, with
the startup getting slower and slower as the offending caps get worse, it
can result in corrupt EEPROM data, so if the OP has only just started
having
trouble with it, there's a good chance that it's just caps. If he has been
struggling to get it to come on for some weeks, then the fact that it
won't
now come on at all, *might* indicate that the EEPROM has now taken a hit
...

Arfa

Good point. I hadn't thought of it that way. Of what I can remember
from trying to concentrate while the owners 2 year old was in turbo
screaming mode, was that the TV was giving them on/off problems for
about 6 months before finally it quit. The LG 32LX1D was purchased in
about 2007, so it was well out of warranty. Same symptoms as the OP.

When I opened it up, the bulging caps in the power supply were
obvious. I replaced two that were bulging, and three more that failed
with the ESR meter. I didn't do anything with the other boards.

I've only fixed one LG that required reloading the firmware. I don't
recall the model number. The TV just would not turn on after a power
glitch. Prior to that, it operated normally. The customer (an
engineer) then attempted to reflash the firmware using the wrong
firmware, which bricked the TV. I found the correct firmware, and
flashed it, which fixed it.

The proposed symptom analysis was my guesswork, which by your
comments, it's going to work.

Note: I don't fix many LCD TV's. Maybe 3 per year. I fix many more
LCD monitors (which are much much much easier).

--
Jeff Liebermann


I try to avoid TVs as much as I can, as well. The ones that friends and
their friends have that they insist on bringing to me, are invariably over
42" and have the type of construction where 496 screws have to come out to
get inside, as well as the stand having to come off so that it won't stay
upright on the bench. A shop that I do a lot of audio work for, specialises
in them. He has a dedicated bench, and a sort of padded 'cradle' made from
copper plumbing fittings and tube, that a stand-less LCD or plasma TV will
happily sit on for servicing.

Arfa

On Sun, 5 Jun 2011 09:57:22 +0100, "Arfa Daily"
wrote:

I try to avoid TVs as much as I can, as well. The ones that friends and
their friends have that they insist on bringing to me, are invariably over
42" and have the type of construction where 496 screws have to come out to
get inside, as well as the stand having to come off so that it won't stay
upright on the bench.

Same problem. All the LCD TVs I've fixed arrived via friends and
customers. Of course, I have to offer a major discount on my time,
lifetime warranty, parts at cost, and assume responsibility for
everything that happens to the TV in perpetuity. Fortunately, most of
the family is on the other side of the planet, and my bad attitude is
rapidly depleting the friends. At the present rate, I may soon run
out of paying computah repair customers. All this may explain why I
fix few LCD TV's.

I have friends and customers. The difference is that the customers
pay me. Otherwise, they're the same.

A shop that I do a lot of audio work for, specialises
in them. He has a dedicated bench, and a sort of padded 'cradle' made from
copper plumbing fittings and tube, that a stand-less LCD or plasma TV will
happily sit on for servicing.

Good idea. I don't have the bench space to handle a 42" LCD. To
repair the last LCD TV, I had to perform an un-natural act, by
cleaning off my workbench. I'm still recovering.

One thing nice about the 496 screws is that they actually use screws
to hold it together. That's in contrast to the smaller LCD computah
displays, that use snap together plastic cases, which are often tricky
or difficult to open. I like the screws much better.

Another problem is that it's difficult to tell the customer that it
took 30 minutes to get into the case, an hour to reassemble it, and 30
minutes to test it. More if I decide to charge for storage while
waiting for parts, or cleaning off the workbench. Two hours for doing
nothing useful is a bit much for most customers. My friends and
competitors tell me I'm insane to work on big TV's.

Yet another problem is that the price of big screen LCD TV's is
dropping fast. When they cost many thousands of dollars, it was easy
to charge a substantial percentage of the value for a repair. Now
that the price has dropped, expensive repairs are no longer easily
possible.

Incidentally, the few synthesizer keyboards I fix also seem to have
496 screws holding them together. Much as I detest electric
screwdrivers, I now have one solely to remove such screws. I still
replace the screws with a non-powered screwdriver.

Speaking of having too many friends and scraping bottom:
http://802.11junk.com/jeffl/crud/Kenmore-sewing-machine.jpg
Sigh...


--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

On Sat, 04 Jun 2011 08:06:39 -0400, wrote:

Hi,

I am servicing a LG model 26LX2D 26" LCD TV that is "dead" (won't turn
on). The only sign of activity is a red blinking light near the remote sensor
receiver.

I do not have a SM for this TV yet. I don't want to risk ordering the
PS unit unless....

Has anyone repaired this model LG TV (dead)?

Thank You in Advance, John

PS, Remove "ine" from my email address




The service manual can be found at Elektrotanya.
http://elektrotanya.com/?q=showresul...ia=& kat2=all

PlainBill

On Sat, 04 Jun 2011 08:06:39 -0400, put finger
to keyboard and composed:

I am servicing a LG model 26LX2D 26" LCD TV that is "dead" (won't turn
on). The only sign of activity is a red blinking light near the remote sensor
receiver.

I do not have a SM for this TV yet.

This site was offline during the last couple of days ...
http://www.jordansmanuals.com/defaul...Product=TV-LCD

I realise that you have already found your manual but, FWIW, I expect
that the 32LX2D model may be similar ...

BTW, the above site is an excellent resource, especially for LG
service manuals (Australian market).

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.