I have a 50inch philips flat screen , when i try to turn it on i press the power button the blue light comes on but no picture is coming on nor sound any ideas thanks
hey watts is not everything now. my sharp xflat crt has 2 5 watt speakers and those can get loud now. also the caps i replaced in hp monitor are capXon. guessing those are a bad brand.
I have a 32" Philips LCD Television I purchased sometime ago which worked fine until a big storm hit my area and lighting hit the flat screen on the wall. I have not been able to turn on the unit. I think its a power supply issue? Could you help me out Maxx...
Also have a 32" Sharp Aquos LCD HDTV which had a couple of bad CCFL tubes. Unfortunately, you can't order the individual tubes; you must order a new screen assembly and that costs more than the set is worth.
Checked it out and the only thing unique about the tubes are that they have electrical terminations welded, not soldered, on the ends to permit their mounting onto sockets.
Three tubes are bad and it appears they failed not due to wear but because of physical damage; the affected tubes have pieces of glass broken off one of their ends.
As luck would have it, there's an eBay seller offering a complete used panel assembly for under $100 for the same model. The panel assembly was taken from a set that was supposedly diagnosed with a faulty main board.
The panel I've got has scratches on the front of the screen in addition to the bad backlight tubes so I'd be killing two birds with one stone this way. At least mine has a good main board, power supply and T-CON.
I bought the panel for $80. It was tested as working. The HDTV that will be repaired was given to me so, basically, I'm buying an HDTV for about $140. (price of panel plus S&H as well as replacement remote).
LG isn't part of Philips, but they are a major OEM supplier of HDTV components as well as an OEM manufacturer.
For instance, I recently acquired what was a broken Akai plasma HDTV for $15 (failed IPM on Z-SUS board; both Z and Y boards fitted with new IPMs and TV works now and hopefully the buffers won't fail). Almost everything in it was made by LG.
Power supply, surprisingly, was made by Sanken and used good quality parts, including Nippon Chemi-con caps and, of course, Sanken transistors.
I just opened up my old Sylvania kitchen TV (2002) to replace the only cap in the SMPS. It was a Nichicon but must have burnt a hole in the foil cause the sound was buzzing and lines were in the screen. I decided to check all the bigger caps. ALL 14 lousy Su'scon caps were bad. One 470uf tested out of circuit on my really good machine at 6 uf. Picture is OK but I ordered new caps anyway. I did forget to plug in the deguasser so I think the picture will improve this time. Thanks, I check every 1.
That's what I was thinking too, that it might have gotten zapped. A couple of weeks ago when we had those high winds, my power flickered on and off about 5 times, and every time it came on the lights went real bright. My computer and stereo system in this room was powered on, and that worried me for a minute, but everything seems to be OK.
I agree. Analog signals look terrible on the new TV's, but digital signals look awesome on CRT TV's! I'll stick with the CRT's.
looks like a similar problem to my TEAC Plasma's SMPSU, shorted across primary AC. I will look at the 2 diodes that i noticed a funny smell around after she popped during testing.
LCD switch modes are very easy compared to Plasma tho.
Are there any diodes that pass voltage in both directions? I'm trying to fix my mini fridge circuit board. It had blown a fuse and had bulging caps. I replaced the caps and fuse but it keeps blowing the fuse.
I tested the diodes on the AC in side and most of them are allowing voltage to pass in both directions. A few larger ones are .7v on one end and 1.4v on the other. That means they're bad, right? I'd assume that's why It keeps blowing the fuse.
LCD TVs are expencive crap, i'll keep my CRT tvs till they die, , meanwhile im on the hunt for a couple of used late model CRTs with S video and componate video for back ups, i don't ever intend to buy a LCD or Plasma TV . my CTRs will be around for years after these LCDs are in the landfill .
@seaninlou68 LCDs (monitors and TVs) aren't all that bad if "refurbished" with good caps. most of the LCD monitors have crappy TN panels in them though. i'd prefer PVA or MVA over those. IPS is even better, but REALLY expensive..
a LED backlit monitor or TV "refurbished" with good caps should last a really really long time
Another great repair video. I love watching your repair videos, you do a great job documenting the repair and I've learned a lot by watching. Currently I've got 4 flat panel TVs in my garage I'm working on.
Hi You are really sharp on your electronics repair. An elec repair person told me that newer solid state electronics are easier to repair, if you are a trained techinician, than complex tube type equipment. With the newer electronics you can isolate sections of the circuit, and test them easier. Tube equipment circuits are more integrated making it more difficult to find the problem. Since you are a well trained and experienced technician, do you find that to be true.
Hi again. I cancelled my order for the cap tester from MCM because while it looked like yours' it was made by B+K. Even the price was the same. Very sneaky. I ordered the real one from another site. I do not want to say where until it arrives in good shape.
@HDXFH ... or Samxon GF ... which are a good cap brand, but problematic series (they die far too soon). interestingly enough i only found those GF's in LCD monitors and TVs so far.. go figure..
Philips seems to have gone downhill . I have a plasma TV that's about 3 years old, I use it everyday and it still works with no problems whatsoever, AND it's from Acoustic Solutions!
@CoolDudeClem While I don't know about the ownership of the Philips brand for consumer electronics, the Magnavox name seems to have landed in the hands of Funai Corporation...and they really don't need any introduction when it comes to "quality of manufacturing". (To be fair, though, their customer service has been exemplary every time I've called them--and some of their products are really quite good.)
I got the exact same TV a few months ago had a dead power supply. had two dead diodes also. go to auto program in menu that is what i had to do to pick up digital channels.
@zell318 I thought about the auto program, but I didn't want to mess it up for the owner.
Those diodes must be a common issue with this model... Probably under-rated. That's one of the reasons why I used the FR107G's. If it shorts again, I'll probably try some 2 Amp diodes.
Where do you find these things? I spend all day on craigslist and dumpster diving but can't find a dead LCD/Plasma to save my life (I have been able to find tons of DLP TVs) I could just go out and buy a new TV but what is the fun in that?
@chickenofsea This one belongs to a friend of my coworker. Most of my stuff is either found in the trash, given to me broken, or bought off Ebay. In fact, I have 2 more LCD monitors coming in soon that were non-working Ebay items. I just hope the screens aren't cracked by the time they get here.
I got the flux capacitor done now i just need a delorean
teflondon91 2 months ago
@maxxarcade how do you work out if the PCB has a short?
jamesfreddieboy 2 months ago
@jamesfreddieboy With an ohm meter.
Maxxarcade 2 months ago
I have a 50inch philips flat screen , when i try to turn it on i press the power button the blue light comes on but no picture is coming on nor sound any ideas thanks
klydesign 4 months ago
hey watts is not everything now. my sharp xflat crt has 2 5 watt speakers and those can get loud now. also the caps i replaced in hp monitor are capXon. guessing those are a bad brand.
james42519 4 months ago
I have a 32" Philips LCD Television I purchased sometime ago which worked fine until a big storm hit my area and lighting hit the flat screen on the wall. I have not been able to turn on the unit. I think its a power supply issue? Could you help me out Maxx...
WILL2FRESH 5 months ago
how much you charge for that fix?
fabianrob 5 months ago
Also have a 32" Sharp Aquos LCD HDTV which had a couple of bad CCFL tubes. Unfortunately, you can't order the individual tubes; you must order a new screen assembly and that costs more than the set is worth.
Watcher3223 6 months ago
@Watcher3223 Are they unique tubes? I've never had much trouble finding them at parts places or on Ebay. You usually just need to know the length.
Maxxarcade 6 months ago
@Maxxarcade
Checked it out and the only thing unique about the tubes are that they have electrical terminations welded, not soldered, on the ends to permit their mounting onto sockets.
Three tubes are bad and it appears they failed not due to wear but because of physical damage; the affected tubes have pieces of glass broken off one of their ends.
Watcher3223 6 months ago
@Maxxarcade
As luck would have it, there's an eBay seller offering a complete used panel assembly for under $100 for the same model. The panel assembly was taken from a set that was supposedly diagnosed with a faulty main board.
The panel I've got has scratches on the front of the screen in addition to the bad backlight tubes so I'd be killing two birds with one stone this way. At least mine has a good main board, power supply and T-CON.
Asking questions about it and awaiting answers.
Watcher3223 6 months ago
@Maxxarcade
I bought the panel for $80. It was tested as working. The HDTV that will be repaired was given to me so, basically, I'm buying an HDTV for about $140. (price of panel plus S&H as well as replacement remote).
Watcher3223 6 months ago
@Watcher3223 Cool, hope it turns out good :-)
Maxxarcade 6 months ago
@Maxxarcade
Me, too. Fixing stuff can be pretty fun, especially if it gains you something at a lower cost.
For reference: the model number of the Sharp is an LC-32SB24U.
Watcher3223 6 months ago
@Maxxarcade
The repair turned out great. Got a decent HDTV for a fraction of what it would have cost used.
Watcher3223 6 months ago
@Watcher3223 Awesome, gotta love cheap high-end stuff :-)
Maxxarcade 6 months ago
LG isn't part of Philips, but they are a major OEM supplier of HDTV components as well as an OEM manufacturer.
For instance, I recently acquired what was a broken Akai plasma HDTV for $15 (failed IPM on Z-SUS board; both Z and Y boards fitted with new IPMs and TV works now and hopefully the buffers won't fail). Almost everything in it was made by LG.
Power supply, surprisingly, was made by Sanken and used good quality parts, including Nippon Chemi-con caps and, of course, Sanken transistors.
Watcher3223 6 months ago
Do you offer trouble shooting on a power supply for non-local patrons ... what would be your fees?
Gus Anas
hclippet 7 months ago
I just opened up my old Sylvania kitchen TV (2002) to replace the only cap in the SMPS. It was a Nichicon but must have burnt a hole in the foil cause the sound was buzzing and lines were in the screen. I decided to check all the bigger caps. ALL 14 lousy Su'scon caps were bad. One 470uf tested out of circuit on my really good machine at 6 uf. Picture is OK but I ordered new caps anyway. I did forget to plug in the deguasser so I think the picture will improve this time. Thanks, I check every 1.
madisonelectronic 7 months ago
How can that speaker possibly be called a subwoofer?
727JeffN 10 months ago
@727JeffN LOLya, more like midrange. It sounded pretty good for its size though!
Maxxarcade 10 months ago
That's what I was thinking too, that it might have gotten zapped. A couple of weeks ago when we had those high winds, my power flickered on and off about 5 times, and every time it came on the lights went real bright. My computer and stereo system in this room was powered on, and that worried me for a minute, but everything seems to be OK.
I agree. Analog signals look terrible on the new TV's, but digital signals look awesome on CRT TV's! I'll stick with the CRT's.
727JeffN 10 months ago
looks like a similar problem to my TEAC Plasma's SMPSU, shorted across primary AC. I will look at the 2 diodes that i noticed a funny smell around after she popped during testing.
LCD switch modes are very easy compared to Plasma tho.
Aussie50 10 months ago
Are there any diodes that pass voltage in both directions? I'm trying to fix my mini fridge circuit board. It had blown a fuse and had bulging caps. I replaced the caps and fuse but it keeps blowing the fuse.
I tested the diodes on the AC in side and most of them are allowing voltage to pass in both directions. A few larger ones are .7v on one end and 1.4v on the other. That means they're bad, right? I'd assume that's why It keeps blowing the fuse.
Thanks for any input, I appreciate it!
Prismatica 10 months ago
Is it alright to put electronics on a towel like that? No risk of static electricity?
ttwilightzzone 10 months ago
LCD TVs are expencive crap, i'll keep my CRT tvs till they die, , meanwhile im on the hunt for a couple of used late model CRTs with S video and componate video for back ups, i don't ever intend to buy a LCD or Plasma TV . my CTRs will be around for years after these LCDs are in the landfill .
seaninlou68 10 months ago
@seaninlou68 LCDs (monitors and TVs) aren't all that bad if "refurbished" with good caps. most of the LCD monitors have crappy TN panels in them though. i'd prefer PVA or MVA over those. IPS is even better, but REALLY expensive..
a LED backlit monitor or TV "refurbished" with good caps should last a really really long time
Knaeckebrotsaege 10 months ago
Sony uses Nippon ChemiCon.Always.Though in a dvd player I saw some strange ones.
costellom5 10 months ago
Another great repair video. I love watching your repair videos, you do a great job documenting the repair and I've learned a lot by watching. Currently I've got 4 flat panel TVs in my garage I'm working on.
bfriesen75 10 months ago 3
Hi You are really sharp on your electronics repair. An elec repair person told me that newer solid state electronics are easier to repair, if you are a trained techinician, than complex tube type equipment. With the newer electronics you can isolate sections of the circuit, and test them easier. Tube equipment circuits are more integrated making it more difficult to find the problem. Since you are a well trained and experienced technician, do you find that to be true.
maynardcat 10 months ago
the speakers aren't that bad in that tv.
ashleycox432 10 months ago
Too bad that's a TN panel rather than the Acer's PVA panel.
douro20 10 months ago
another ticking time bomb HDTV, i swear they build em that way on purpose so you go and buy a new one every time they go out of warranttee
fatmikey00032000 10 months ago
@fatmikey00032000 it's the same thing for LCD monitors. Samsungs and LGs are notorious for bad caps..
Knaeckebrotsaege 10 months ago
Murphy's law is perfect. Nice repair and information.
AllAmericanFiveRadio 10 months ago
PS Was the chip bad or just impossible to find in other than surface mount?
madisonelectronic 10 months ago
Hi again. I cancelled my order for the cap tester from MCM because while it looked like yours' it was made by B+K. Even the price was the same. Very sneaky. I ordered the real one from another site. I do not want to say where until it arrives in good shape.
madisonelectronic 10 months ago
Bloody Flat panels, they're always needing repairs, I'd stick to japanese Capacitors, LG tends to use Samwha caps alot in their stuff
HDXFH 10 months ago
@HDXFH ... or Samxon GF ... which are a good cap brand, but problematic series (they die far too soon). interestingly enough i only found those GF's in LCD monitors and TVs so far.. go figure..
Knaeckebrotsaege 10 months ago
Well presented repair vid. Pleasant to watch and informative. Great work.
27merk 10 months ago
nice
FritoFredrik 10 months ago
fixed a lot of rear projection tv back in the day with the same problem. most of the time its the bridge rectifier ..:)
karmabike1 10 months ago
New TV's are POS. I'll stick with the old standard type CRT TV's. I don't care if it's HD or not. Build quality comes first in my opinion.
Trance88 10 months ago
where do you buy the components/parts??
brandon14872 10 months ago
@brandon14872 Usually Mouser Electronics, though it varies depending on what I'm fixing.
Maxxarcade 10 months ago
Where did you get your tool for bending the leads?
dennis525371 10 months ago
@dennis525371 I can't remember for sure, but I think it was MCM Electronics.
Maxxarcade 10 months ago
I always look forward to watching your videos I just want to say thank you ! for your time uploading and doing these videos ? keep it coming !
csanchez999 10 months ago
how mutch would you charge for a agp vid card and a lcd or to repair one?
blimp420 10 months ago
can you use the CapAnalyzer 88A to measure diodes also or just capapcitors ? Thanks
csanchez999 10 months ago
Philips seems to have gone downhill . I have a plasma TV that's about 3 years old, I use it everyday and it still works with no problems whatsoever, AND it's from Acoustic Solutions!
CoolDudeClem 10 months ago
@CoolDudeClem While I don't know about the ownership of the Philips brand for consumer electronics, the Magnavox name seems to have landed in the hands of Funai Corporation...and they really don't need any introduction when it comes to "quality of manufacturing". (To be fair, though, their customer service has been exemplary every time I've called them--and some of their products are really quite good.)
uxwbill 10 months ago
Weird how my about 5 year old monitor still works
Ltb0b 10 months ago
I got the exact same TV a few months ago had a dead power supply. had two dead diodes also. go to auto program in menu that is what i had to do to pick up digital channels.
zell318 10 months ago
@zell318 I thought about the auto program, but I didn't want to mess it up for the owner.
Those diodes must be a common issue with this model... Probably under-rated. That's one of the reasons why I used the FR107G's. If it shorts again, I'll probably try some 2 Amp diodes.
Maxxarcade 10 months ago
At 5:31 is Wheel of Fortune!!
You know how to repair millions of things! You are an excellent fixer!
how many computers you have now??
Mr1p0d 10 months ago
@Mr1p0d I kinda lost count on the computers, probably 15 or 20. More videos to come... I've been getting a lot of junk in lately!
I just like fixing stuff because I hate letting things go to waste Can't make a living off it though :-)
Maxxarcade 10 months ago
The reason big companies use crappy caps, is so you can go out and buy a new tv!
DarknessKingCoH 10 months ago 9
Where do you find these things? I spend all day on craigslist and dumpster diving but can't find a dead LCD/Plasma to save my life (I have been able to find tons of DLP TVs) I could just go out and buy a new TV but what is the fun in that?
chickenofsea 10 months ago
@chickenofsea This one belongs to a friend of my coworker. Most of my stuff is either found in the trash, given to me broken, or bought off Ebay. In fact, I have 2 more LCD monitors coming in soon that were non-working Ebay items. I just hope the screens aren't cracked by the time they get here.
Maxxarcade 10 months ago
cool first to se love ur vids keep up the good work :) 240p r tru fans
WinbookXL3 10 months ago