Re: Macgyver-ing LED backlights for Sharp LC-50UB30U
I don't see why you cant use led strips from other tvs just two wire per strip.
heavymachines
Badcaps Legend
Last Activity: 02-23-2023, 09:14 PM
Joined: 03-05-2011
Location: Muskegon, Michigan
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Re: Vizio D650I-B2
yeah i agree ......Leave a comment:
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Re: Vizio D650I-B2
and it runs at 3.3 volts replaced c1 and c3 smd cap....Last edited by heavymachines; 11-29-2017, 09:21 AM.Leave a comment:
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Re: Vizio D650I-B2
[url]http://www.shopjimmy.com/vizio-55-75u02-001g-ir-sensor.htm[/url] it looks like this and lookie here they're sold out of them but all u need to do is replace the 2 smd cap 1 larger the other smaller.Re: Vizio D650I-B2<br /> <br /> [u...other smaller.Re: Vizio D650I-B2
[url]http://www.shopjimmy.com/vizio-55-75u02-001g-ir-sensor.htm[/url] it looks like this andLeave a comment:
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Re: Vizio D650I-B2
Also both smd caps needed replacement on ir board.... all is wellLeave a comment:
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Re: Vizio D650I-B2
okay figured it out it was the ir board for remote it was loading down main. tv works good nowLeave a comment:
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Re: Vizio D650I-B2
Still looking around to figure this thing any help would be great.Leave a comment:
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Re: Vizio D650I-B2
they're fine...Leave a comment:
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Re: Vizio D650I-B2
Here are the pics...Leave a comment:
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Re: Vizio D650I-B2
yeah 5vsb is still down to like 1.4 to 1.9 fluctuating.
Pics coming soon...Leave a comment:
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Re: Vizio D650I-B2
Replaced main and still same problem, now where to look lol?Leave a comment:
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Re: Mangavox 50ME314V/F7 "Funai junk"
Okay replaced main and all is well now and working as it should. stby is provided on main...Leave a comment:
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Re: Vizio D650I-B2
replaced regulator no dice, followed high resistance right to cpu toast new board on its way. will update results.Leave a comment:
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Re: Mangavox 50ME314V/F7 "Funai junk"
had until it started to chrip. had a bunch of shorted smd caps right under cpu removed and still shorted so cpu is toast now and gets really hot.. Another main on its way. it had AL+3.3V until we did that trace cut and forced on backlights which it worked for about 5 seconds then shut down and started chirping and cpu gets really hot. will report back when it comes in....Last edited by heavymachines; 11-21-2017, 04:48 PM.Leave a comment:
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Re: Vizio D650I-B2
The hottest device on main is Ic1 which is a LD1117AG voltage regulator only reaches 94 degrees f. other LD1117 only reaches about 74 degrees f.
Nothing smoking hot...Leave a comment:
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Re: Vizio D650I-B2
Looking like a main problem. Due to unstable voltages, but i want to be sure.Leave a comment:
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Re: Mangavox 50ME314V/F7 "Funai junk"
so with all this being said the power supply is probably ok. didn't order anything just yet btw.Last edited by heavymachines; 11-20-2017, 06:56 PM.Leave a comment:
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Re: Mangavox 50ME314V/F7 "Funai junk"
That is what page one of schematic was saying budm provided,,,, saying the source of al=3.3v is on main....Last edited by heavymachines; 11-20-2017, 08:01 PM.Leave a comment:
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Re: Vizio D650I-B2
ok with main disconnected voltages do stabilize the ones present anyways i have no idea how to force this set on since it has a led driver board. interesting anyhow.
Cn101
1. 5vsb=5.04v
2. same as 1
3. Ac det= .003v
4 Ps_on 0v
5. gnd
6 gnd
7. 5v res= 5.04v
8.nothing else just dead on rest of pins on all connectors on ps.Leave a comment:
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Re: Vizio D650I-B2
Cn203
1.vddb
2.vddb
3.vddb
4.vddb
5.vddb 23.9v to 24.01
6.Bl gnd
7.bl gnd
8.bl gnd
9.bl gnd
10bl gnd
11.N/C
12.N/CLeave a comment:
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