LG DVD 3000 FAULT

V

valiumboy

Guest
Hi All, I have several of these DVD Players in for repair with the same
fault.
OK when cold but when they heat up they will freeze and not turn off, or
just stop or no screen.
I suspect the main logic bpard as it gets very hot.
If freeze spray is aplied it will work fine.
Has anyone seen this before and is it a common fault.
Cheers
Joe
 
"valiumboy" <pussynuts@bigpond.com> wrote in message
news:Iz5%d.4262$C7.3887@news-server.bigpond.net.au...
Hi All, I have several of these DVD Players in for repair with the same
fault.
snip
Has anyone seen this before and is it a common fault.
Click to expand...
You just told us it was a common fault! :)

(Sorry I have no idea of the fix)

MrT.
 
Thanks for the informative response.
It may not be common at all.That was the reason i was posting.Just because i
have 3 of them with the same symptoms means nothing.
If you have no idea of the fix what was the point of posting



Has anyone seen this before and is it a common fault.

You just told us it was a common fault! :)

(Sorry I have no idea of the fix)

MrT.
Click to expand...
 
"valiumboy"
Hi All, I have several of these DVD Players in for repair with the same
fault.
OK when cold but when they heat up they will freeze and not turn off, or
just stop or no screen.
I suspect the main logic bpard as it gets very hot.
If freeze spray is aplied it will work fine.
Has anyone seen this before and is it a common fault.
Click to expand...

** Contact the LG company - you need to speak to their warranty service
people.

Design flaws like that may have a known and published fix.




............ Phil
 
"valiumboy" <pussynuts@bigpond.com> wrote

Thanks for the informative response.
It may not be common at all.That was the reason i was posting.Just because i
have 3 of them with the same symptoms means nothing.

**** There must have been tens of thousands of these machines made,and
you just happen to have "several"
of them,with the same fault and you think that means nothing?????

The mind boggles!!!!!!!!


If you have no idea of the fix what was the point of posting


***** If you have no idea of how to fix the fault,what was the point of
posting?

Brian Goldsmith.
 
"valiumboy"

I suspect the main logic bpard as it gets very hot.
Click to expand...

** Mount a mini ( 40mm) 12 volt fan blowing on the hot areas.

Call it a " work around " ;-)





............. Phil
 
Thanks Phil, as least someone has a constructive comment without being a
smart ass.
I will get on to LG tomorrow.
Suspect one of the ram chips on this board.
And yes i have 3 of them with the same SYMPTOMS.Sometimes freezing,sometimes
no screen at all, sometimes skipping.
Any of the 10 ics on the logic board could be contributing individually or
together to cause these faults.
I was trying to narrow it down.I was hoping someone had seen it before, but
obviously not.

"Phil Allison" <philallison@tpg.com.au> wrote in message
news:3a513gF656i4oU1@individual.net...
"valiumboy"


I suspect the main logic bpard as it gets very hot.



** Mount a mini ( 40mm) 12 volt fan blowing on the hot areas.

Call it a " work around " ;-)





............ Phil
Click to expand...
 
"valiumboy" <pussynuts@bigpond.com> wrote in message
news:OHb%d.4751$C7.455@news-server.bigpond.net.au...
Has anyone seen this before and is it a common fault.

You just told us it was a common fault! :)

(Sorry I have no idea of the fix)
Thanks for the informative response.
It may not be common at all.That was the reason i was posting.Just because
i
have 3 of them with the same symptoms means nothing.
If you have no idea of the fix what was the point of posting
Click to expand...
I guess your top posting shows that you are new, so for your info a :) is
called a smiley, and it usually indicates humour.

MrT.
 
"valiumboy" <pussynuts@bigpond.com> wrote in message
news:dLd%d.4991$C7.3370@news-server.bigpond.net.au...
** Mount a mini ( 40mm) 12 volt fan blowing on the hot areas.
Call it a " work around " ;-)

Thanks Phil, as least someone has a constructive comment without being a
smart ass.
Click to expand...
I think he *was* very much trying to be a smart ass with that reply!

You truly ARE humour impaired!

MrT.
 
"Mr.T" = a congenital fuckwit and life long troll.
"valiumboy"

Phil Allison
** Mount a mini ( 40mm) 12 volt fan blowing on the hot areas.
Call it a " work around " ;-)

Thanks Phil, as least someone has a constructive comment without being a
smart ass.

I think he *was* very much trying to be a smart ass with that reply!
Click to expand...

** Nothing smartarse about offering a practical solution to an overheating
problem.

If the mini fan is run with a supply of about 10 volts DC, the simple act
that it is fully enclosed in the DVD player's cabinet means that no audible
noise will escape.

No air need enter or leave the player for localised fan cooling to work.




............. Phil
 
On Sun, 20 Mar 2005 02:52:24 GMT, "valiumboy" <pussynuts@bigpond.com>
put finger to keyboard and composed:

Hi All, I have several of these DVD Players in for repair with the same
fault.
OK when cold but when they heat up they will freeze and not turn off, or
just stop or no screen.
I suspect the main logic bpard as it gets very hot.
If freeze spray is aplied it will work fine.
Has anyone seen this before and is it a common fault.
Cheers
Joe
Click to expand...
Try adding heatsinks, eg http://www.xoxide.com/ramsink.html. DSE's
cat# is Z8340.

I'd also consider ventilating the cover.

If you choose to use a fan, you may strike the same issue that I have
with my Digitor G1605, namely that the SMPS provides 14V and 6V, not
12V and 5V. If this bothers you, or maybe if the noise is excessive,
then you could use this circuit for voltage regulation and speed
control:

http://www.siliconchip.com.au/cms/A_103659/article.html


- Franc Zabkar
--
Please remove one 's' from my address when replying by email.
 
Phil Allison wrote:
"Mr.T" = a congenital fuckwit and life long troll.

"valiumboy"

Phil Allison
** Mount a mini ( 40mm) 12 volt fan blowing on the hot areas.
Call it a " work around " ;-)

Thanks Phil, as least someone has a constructive comment without being a
smart ass.

I think he *was* very much trying to be a smart ass with that reply!




** Nothing smartarse about offering a practical solution to an overheating
problem.

If the mini fan is run with a supply of about 10 volts DC, the simple act
that it is fully enclosed in the DVD player's cabinet means that no audible
noise will escape.

No air need enter or leave the player for localised fan cooling to work.

............ Phil
Click to expand...
Absolutely! I've seen it done inside little (500W - 2kW) motor drives
where a 40mm x 40mm 12V fan reduced the peak temperature by over 50C,
yet the average internal temperature only went up 5C. If an electrolytic
cap was unlucky enough to be in the hot spot, it would last about 1/32nd
as long as it should.

Have you checked all of the RAM chips for correctly soldered pins?

Cheers
Terry
 
Thanks guys for the help.Those heatsinks might do the trick and or the fan.
MrT if you have nothing to constructivley contribute then piss off you
dickhead.
I will get onto LG today and let you know the results.
Cheers
Joe
"Franc Zabkar" <fzabkar@optussnet.com.au> wrote in message
news:eclr31tqjbn09fckbs1on7hlr2h65oo820@4ax.com...
On Sun, 20 Mar 2005 02:52:24 GMT, "valiumboy" <pussynuts@bigpond.com
put finger to keyboard and composed:

Hi All, I have several of these DVD Players in for repair with the same
fault.
OK when cold but when they heat up they will freeze and not turn off, or
just stop or no screen.
I suspect the main logic bpard as it gets very hot.
If freeze spray is aplied it will work fine.
Has anyone seen this before and is it a common fault.
Cheers
Joe

Try adding heatsinks, eg http://www.xoxide.com/ramsink.html. DSE's
cat# is Z8340.

I'd also consider ventilating the cover.

If you choose to use a fan, you may strike the same issue that I have
with my Digitor G1605, namely that the SMPS provides 14V and 6V, not
12V and 5V. If this bothers you, or maybe if the noise is excessive,
then you could use this circuit for voltage regulation and speed
control:

http://www.siliconchip.com.au/cms/A_103659/article.html


- Franc Zabkar
--
Please remove one 's' from my address when replying by email.
Click to expand...
 
Rang LG seems this is fairly common for this model.
Suggested replacement logic board at $367.0O each trade.
I propmtly said i dont think so.
Oh well looks like these are going into the round filing cabinet.
I might try a fan on one of them to see if it makes a difference.
Cheers
Joe
"valiumboy" <pussynuts@bigpond.com> wrote in message
news:Qwm%d.5227$C7.1502@news-server.bigpond.net.au...
Thanks guys for the help.Those heatsinks might do the trick and or the
fan.
MrT if you have nothing to constructivley contribute then piss off you
dickhead.
I will get onto LG today and let you know the results.
Cheers
Joe
"Franc Zabkar" <fzabkar@optussnet.com.au> wrote in message
news:eclr31tqjbn09fckbs1on7hlr2h65oo820@4ax.com...
On Sun, 20 Mar 2005 02:52:24 GMT, "valiumboy" <pussynuts@bigpond.com
put finger to keyboard and composed:

Hi All, I have several of these DVD Players in for repair with the same
fault.
OK when cold but when they heat up they will freeze and not turn off, or
just stop or no screen.
I suspect the main logic bpard as it gets very hot.
If freeze spray is aplied it will work fine.
Has anyone seen this before and is it a common fault.
Cheers
Joe

Try adding heatsinks, eg http://www.xoxide.com/ramsink.html. DSE's
cat# is Z8340.

I'd also consider ventilating the cover.

If you choose to use a fan, you may strike the same issue that I have
with my Digitor G1605, namely that the SMPS provides 14V and 6V, not
12V and 5V. If this bothers you, or maybe if the noise is excessive,
then you could use this circuit for voltage regulation and speed
control:

http://www.siliconchip.com.au/cms/A_103659/article.html


- Franc Zabkar
--
Please remove one 's' from my address when replying by email.
Click to expand...
 
"valiumboy" <pussynuts@bigpond.com> wrote in message
news:Qwm%d.5227$C7.1502@news-server.bigpond.net.au...
Thanks guys for the help.Those heatsinks might do the trick and or the
fan.
MrT if you have nothing to constructivley contribute then piss off you
dickhead.
Click to expand...
Anyone with half a brain would find out what the problem really is before
just throwing a fan in the box.
I guess that doesn't include you, since you'd rather abuse people than do a
little research for yourself.

MrT.
 
"Mr.T" = serial usenet public menace
"valiumboy"

Thanks guys for the help.Those heatsinks might do the trick and or the
fan.
MrT if you have nothing to constructivley contribute then piss off you
dickhead.

Anyone with half a brain would find out what the problem really is before
just throwing a fan in the box.
Click to expand...

** Bullshit .

Service techs are paid *only* to fix faults - not theorise about them.

The simplest and quickest fix that works is the one to use.





.............. Phil
 
"Phil Allison" <philallison@tpg.com.au> wrote in message
news:3a7vhbF67bcdeU1@individual.net...
Service techs are paid *only* to fix faults - not theorise about them.

The simplest and quickest fix that works is the one to use.
Click to expand...
I guess that's your practice anyway.
The question is what constitutes a fix, and what constitutes a botch, hack
or future problem for the next tech?

MrT.
 
"Mr.T = congenital bloody fuckwit

"Phil Allison"
Service techs are paid *only* to fix faults - not theorise about
them.

The simplest and quickest fix that works is the one to use.

I guess that's your practice anyway.
Click to expand...

** Get fucked - arsehole.


The question is what constitutes a fix, and what constitutes a botch, hack
or future problem for the next tech?
Click to expand...

** Service techs are paid *only* to fix faults - not theorise about
them.

The first two words are the key ones - "service techs".

The DVD player clearly has a design flaw - this is admitted by LG who have
no fix for it. The folk who need to analyse and solve this are the design
and production staff for LG. If the model is no longer in production or the
PCB in question has been revised already it becomes academic and they will
not bother.

Using a fan to keep the ICs on the digital PCB cool is no bodge - it is a
simple, low cost solution to a digital logic design that does not have a
wide enough operating temperature range.



.............. Phil
 
Phil Allison wrote:
"Mr.T" = serial usenet public menace

"valiumboy"


Thanks guys for the help.Those heatsinks might do the trick and or the

fan.

MrT if you have nothing to constructivley contribute then piss off you
dickhead.

Anyone with half a brain would find out what the problem really is before
just throwing a fan in the box.



** Bullshit .

Service techs are paid *only* to fix faults - not theorise about them.

The simplest and quickest fix that works is the one to use.
Liar , the correct fix is the one to use , not some butcherous bit of
Click to expand...
home carpentry .
............. Phil
Click to expand...
 
On Tue, 22 Mar 2005 00:44:10 +1100, "Mr.T" <MrT@home> put finger to
keyboard and composed:

"Phil Allison" <philallison@tpg.com.au> wrote in message
news:3a7vhbF67bcdeU1@individual.net...
Service techs are paid *only* to fix faults - not theorise about them.

The simplest and quickest fix that works is the one to use.

I guess that's your practice anyway.
The question is what constitutes a fix, and what constitutes a botch, hack
or future problem for the next tech?
Click to expand...
Normally DVDs aren't worth spending too much time on. However, the OP
said he had three of the same model, so in this case he can afford to
invest three times the amount of time he would normally spend on a
one-off job. Furthermore, if this fault really is a common one, then
the fourth job may be pure profit. Granted, there is very little you
can do with smt stuff, or ASICs, but at the very least I would check
the power supplies, including the onboard regulators, and I would test
the caps for ESR. Before adding a fan, I would localise the fault with
freeze spray and try some heatsinks.


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