Lg 50pa4500 won't turn on all the way. Clicks one time and the screen backlights like a primer screen but doesn't come on all the way. TV did come on one time last week and stayed on for two hours then I lost the picture and had sound still. Any ideas
-
-
Re: Lg 50pa4500 won't turn on.
Do you have sound now?
Have you tried the test pattern jumper? (EXT_AUTO_GEN)Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search. -
Re: Lg 50pa4500 won't turn on.
What input should I be using to test for sound I had it on TV with an antenna when it came on. How exactly do I do the test pattern jumper.Comment
-
Re: Lg 50pa4500 won't turn on.
You can check other guides for LG plasmas on this forum. You want to look for two points marked EXT AUTO GEN and put a wire jumper across them. They are on the control board (small green board roughly in centre of chassis.) You will also need to disconnect the LVDS cable then you can turn on the TV. If everything except the main board is working you should get a sequence of test patterns.
As for the sound, I would connect something to the RCA jacks/component video jack like a DVD player and check that you get sound on one of the inputs (pressing INPUT will flick through them in the menu one by one, so just try a few times even if you can't see the menu.)Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
-
Re: Lg 50pa4500 won't turn on.
Which boards do I disconnect lvds cable from to do test patternComment
-
Re: Lg 50pa4500 won't turn on.
The LVDS cable r goes between the main av board (with the HDMI ports) and the control board.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
-
Re: Lg 50pa4500 won't turn on.
Disconnected lvds and put jumper wire on two points on logic board. TV went through sequence red , green, blue, and some patterns. Everything loooks great so I guess it needs a main board!Comment
-
Re: Lg 50pa4500 won't turn on.
ebay has a used main, pricey for used?
http://www.ebay.com/itm/LG-50PA4500-...item3aa9877383Comment
-
Re: Lg 50pa4500 won't turn on.
Would all agree I need the main board?Comment
-
Re: Lg 50pa4500 won't turn on.
i have exactly the same problem,, i connected jumper and test mode on tv works fine,,, means tv is ok ,, the problem is the logic board or motherboard,,, ive been looking where can i get it,, and nobody has one,, checked on ebay, amazon shopjimmy,,, no one has one,,, if you have one and/or know where can i get it please let me know,,,
LG 50PA4500 UF MOTHERBOARD EAX64280504 (1.0) EBT61875108Comment
-
Re: Lg 50pa4500 won't turn on.
do shopjimmy recomend any alternative replacements for your board?Comment
-
Re: Lg 50pa4500 won't turn on.
does anyone have for sale LG 50PA4500 UF MOTHERBOARD EAX64280504 (1.0) EBT61875108 after i did the bridge tested screen and power supply works fine i just need the motherboard and nobody sale it, no ebay, amazon or shopjimmy please let me know.Comment
-
Hi,
I need to repair a P-115 yamaha digital piano with a strange behaviour.
When I power on the piano from the dedicated on/off switch, the power led go to ON (red led), but the keyboard doesn't produce any sound, nor in the speakers nor in the headphones.
When I try to power off (pressing the switch for at least 1 second), the keyboard doesn't power off, the red led remains ON. I need to unplug the adapter cable to switch off the keyboard.
I checked the 12V voltage rail on the input PCB, after the power plug and it is OK.
I checked also the... -
Good day ladies and gentleman!
I am currently trying to repair a Grundig Vision 9 37 9880 T USB LCD TV for a friend that has a weird audio problem. Basically everything works fine except for the heavily distorted sound when the Subwoofer module is connected and there is a buzzing sound coming from the PSU PCB.
This seems to be a rather rare TV so there is not much prior on topic help to be found however a service manual is available at the usual sources (Electro Tanya i.e.).
I think the PSU buzzing comes from one of the coils near the bridge rectifier but... -
Hello, i have some issues with my laptop Lenovo Y700-17ISK (motherboard BY511 NM-A541), it started when i turn on the laptop, but the lcd wont turn on, i then connected it via hdmi to tv and screen was ok. So i thought maybe lcd stripe is faulty, i removed the bottom cover, disconnected main battery, reset the cmos by disconnecting battery for 1 min, then slighty move the lcd stripe. Conncted power supply and tuned on my laptop, the lcd turn on, it started to load os, then it turn off, after a second it turn on, then after like 3 seconds turn off again, and so on. Removed power supply, waited... -
Hello to the forum.
My name is Christos, I am new to the forum here and i am posting from Greece.
So i have this old German sound card from Marian, called Trace Alpha. To be exact i have 2 of them and i use them professionally for my small FM radio station here. The first one works like a charm, but the second one does not work at all.
To be more specific in the same exact pc with windows 7 (i even tried 32bit) the one works while the other doesn't.
So i tried asking for a schematic from the company and they would not give me one. Instead they... -
This specification for the HP ProDesk 600 G5 + LG SJ2 Bluetooth Sound Bar can be useful for upgrading or repairing a desktop PC that is not working. As a community we are working through our specifications to add valuable data like the ProDesk 600 G5 + LG SJ2 Bluetooth Sound Bar boardview and ProDesk 600 G5 + LG SJ2 Bluetooth Sound Bar schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please...09-12-2024, 02:30 PM
Comment