37LG6000 replaced fuse but now cant change input or use remote

[shepp]

changed a fuse in the power supply everything else looks fine tested for shorts and was fine, so powered back up and i get HDMI1 comes up in the corner and thats it no input through it, the side buttons dont work either and the remote turns the tv on and thats it, any ideas guys?

will post some pics of main board tomorrow, but is there some kind of reset i can do with the remote or buttons or anything?

[tom66]

Re: 37LG6000 replaced fuse but now cant change input or use remote

Check 3.3V regulator on main board, 3.4V from PSU. Had similar issue with LG 37LC2D.

[shepp]

Re: 37LG6000 replaced fuse but now cant change input or use remote

Will check that tomorrow and post some pics. Cheers mate

[shepp]

Re: 37LG6000 replaced fuse but now cant change input or use remote

finally got the computer to connect to my phone...so here are the pics...

there is no 3.3v, how ever there is 3v for PWR that goes from power supply to other power supply board then goes to the main board, all other voltages are correct 5.2v 12v 16v

cant find the voltage regulator that you speak of?

[shepp]

Re: 37LG6000 replaced fuse but now cant change input or use remote

how did you fix the problem you had?

[tom66]

Re: 37LG6000 replaced fuse but now cant change input or use remote

how did you fix the problem you had?

Replaced the PSU about £30... but my PSU was different.

[selldoor]

Re: 37LG6000 replaced fuse but now cant change input or use remote

cant find the voltage regulator that you speak of?

Right in the middle of Picture 4? IC1001

[shepp]

Re: 37LG6000 replaced fuse but now cant change input or use remote

Right in the middle of Picture 4? IC1001

will check it tomorrow night, thanks selldoor, is this a common fault? and is that the likely cause of the fuse on the power board being blown?

[tom66]

Re: 37LG6000 replaced fuse but now cant change input or use remote

will check it tomorrow night, thanks selldoor, is this a common fault?

Three others on this forum have reported it with 37LC2D - but all have been regarding the 37LC2D and not 37LG6000 which is completely different.

and is that the likely cause of the fuse on the power board being blown?

Probably not, possibly another fault.

[shepp]

Re: 37LG6000 replaced fuse but now cant change input or use remote

with all the voltages being correct on the power supply and the tv powering up and screen coming on i was thinking it would be a main board fault especially with the remote and the buttons not working correctly as well, so the only cause would be a power surge or a blown component and if a component was faulty i would of thought the fuse would have blown again when i replaced it?

i will test IC1001 tomorrow and report back

i have looked for a main board for this and so far havent found one, so fingers crossed its that IC and hopefully i can replace that with a bit of precision soldering and a lot of praying ;-)

[selldoor]

Re: 37LG6000 replaced fuse but now cant change input or use remote

Service manual?

http://www.electronica-pt.com/index....fe4/no_html,1/

[shepp]

Re: 37LG6000 replaced fuse but now cant change input or use remote

Service manual?

http://www.electronica-pt.com/index....fe4/no_html,1/

thank you mate

[shepp]

Re: 37LG6000 replaced fuse but now cant change input or use remote

what does No Raster mean? on page 19

3. No Raster
Symptom
1) No OSD and image occur on the screen.
2) It maintains the condition with the front LED is white.

ive been through flow chart, inverter is ok, that only leaves LCD Module so that cant be right? what is ment by LCD module the panel itself?

[tom66]

Re: 37LG6000 replaced fuse but now cant change input or use remote

Exactly what is says - no picture at all INCLUDING no OSD: "No OSD and image occur on the screen."

If all supply voltages are good, the problem is most likely on the main board, possibly the sub MICOM (microcontroller), could have corrupted firmware. Look for part# on main board maybe available for different model?

[tom66]

Re: 37LG6000 replaced fuse but now cant change input or use remote

Notice a "dealer service kit" - all boards - for £60 here

http://www.bixreclamation.co.uk/LG_3.../p11118_dk.htm

Maybe worth having a look at?

[shepp]

Re: 37LG6000 replaced fuse but now cant change input or use remote

checked that its out of stock, found a main board for £27.99 brand new as well but thats out of stock as well


EAX39192001 thats the number, cant find any in stock any where, so looks like ill have to wait for a bit

[tom66]

Re: 37LG6000 replaced fuse but now cant change input or use remote

checked that its out of stock, found a main board for £27.99 brand new as well but thats out of stock as well


EAX39192001 thats the number, cant find any in stock any where, so looks like ill have to wait for a bit

I had same issue with my LE32N73 (getting a new main board), but I just sold it on to someone else who is an experienced TV tech (much more experienced than myself) so they will probably have better luck.

[selldoor]

Re: 37LG6000 replaced fuse but now cant change input or use remote

Have you tried the usual hold the power button in while plugging in.
There are also stories of flicking between tv and av and whatever on the remote to get the controller to throw a wobbly and reset ( No practical experience of either.)
Can I assume you have tried other inputs to try and get it to change off hdmi

[shepp]

Re: 37LG6000 replaced fuse but now cant change input or use remote

be a shame to have to strip it, its a well nice tv, think ill just end up holding onto it for a while, put it back together and shove it out of the way until 1 comes up, if 1 comes up....lol

ive only tried buttons to change input, and ive swopped hdmi out of each hdmi input, not tried putting scart into tv or aerial but ill try it anyway tomorrow, ill try the remote thing as well when i do it but im not holding my breath

[tom66]

Re: 37LG6000 replaced fuse but now cant change input or use remote

be a shame to have to strip it, its a well nice tv, think ill just end up holding onto it for a while, put it back together and shove it out of the way until 1 comes up, if 1 comes up....lol

Well I sold mine (complete and unmodified) for more than I bought it for so was well pleased