Re: Replacing LG PSU LGP32-11P with LGP32-09P?
You can´t go below 4,5v with a zener programmable , ic201 , which have a reference voltage of 2,4v .
Change it with an az431 1,24 v reference voltage.
arenat
Member
Last Activity: 05-16-2019, 01:34 PM
Joined: 11-23-2015
Location: Buenos Aires
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Re: Backlight rare white rings. Samsung 50in 4K TV
Same here with an LG , they are putting the bare chip 15x15 integrated with the strip , over time the exposed phosphor worn out .The pic is from a new strip , two years half the diodos became blue ....Leave a comment:
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Re: Samsung UE32D5500 boot loop
I buy the chip programmed . The no very cheap TNM5000 is the only programmer able to burn this particular chip , besides that is hard to get the dump , you can´t copy it from a working set . For me don´t worth the hassle do it my self , I´m well past the ego trip age .
There are plenty of post in Brazilians and Argentinians sites about this matter .
Some sellers in the link .
[url]https://listado.mercadolibre.com.ar/nand-flash-k9gag08u0e#D[/url][A:nand-flash-k9gag08u0e]Re: Samsung UE32D5500 boot...Leave a comment:
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Re: Samsung UE32D5500 boot loop
I do one a month on average . The only solution is changing that memory . If you want to hear some babble go ahead .Leave a comment:
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Re: Samsung UE32D5500 boot loop
Don´t waste your time , it´s the nand flash corrupted .
One seller in Europe offer it .
[url]https://www.ebay.com/itm/IC-K9GAG08U0E-para-UE-32D5500-37D5500-40D5500-46D5500-D5520-samsung/192666012709?hash=item2cdbca0c25:g:jMwAAOSwImRYZXZi[/url]Re: Samsung UE32D5500 boot loop<br /...2709?hash=itemLeave a comment:
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Re: EEFL lamp interference on a Telefunken 32" model TLCD32FHDUA
It´s a very well know issue around here . Last week I did one . A service bulletin say you must remove the alluminiun strips behind the tubes however shielding behind the boards even the t-con is enough .Leave a comment:
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Re: Help identifying a surface mount fuse
VA varistor .Leave a comment:
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Re: Lg 43uh610v
An overdrive led go blue .
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[/URL][/IMG]Re: Lg 43uh610v
An overdrive led go blue .
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[/URL][/IMG]Re: Lg 43uh610v
An overdrive led go blue .
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[/URL][/IMG]Re: Lg 43uh610v
An overdrive led go blue .
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Leave a comment:
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Re: Samsung 4k dark areas
Probably panel/t-con issue . Look the backlight in the link.
[url]https://articulo.mercadolibre.com.ar/MLA-705007036-tiras-de-led-samsung-un48ju6500-_JM[/url]Re: Samsung 4k dark areas<br /> <br...6500-_JM[/url]Leave a comment:
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Re: Philips 37PFL5603D. Image fades out slowly
I´m talking of effect you described in the first post . The video is only to show where the tabs are located . You must look at the sides of the panel , could be three or four tabs at each side , rip off all the tabs of the side where the fail begin .Those are NOT the tabs who are located in the upper or bottom side of the panel ....Last edited by arenat; 06-02-2018, 08:10 AM.Leave a comment:
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Re: Philips 37PFL5603D. Image fades out slowly
The 40PFL7606 I´ve fixed behave exactly as yours . Usually touching the culprit the problem came and go .The T-CON can´t do that .Leave a comment:
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Re: Philips 37PFL5603D. Image fades out slowly
Probably bad panel , check this link .
[url]https://www.youtube.com/watch?v=BDCpRuaH4jg[/url]
You must rip the drivers of the bad side with the set working .
A week ago I´ve fixed one 40PFL7606 with that exact fail.Re: Philips 37PFL5603D. Image fades ...40PFL7606 withLeave a comment:
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Re: Samsung UN48J5000: Backlight Strip Burn
There´s not Vdrop in the low side of the string . This is not how PWM work , when the mosfet is ON the string get the full current , when is OFF get zero , nada .The current is an average given those times on and off ....Leave a comment:
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Re: Samsung UN60FH6003 yellow tint 3 days after replacing backlights
Over drive leds became a very cool blue then die .Leave a comment:
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Re: Samsung UN60FH6003 yellow tint 3 days after replacing backlights
I've had a similar issue a couple of times , clean with alcohol and reassemble the panel wires .
I'm having a great trouble trying to find the correct English words .
Usually the culprit is mainboard to t-conLeave a comment:
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Re: Samsung LN40D550K1FXZA Backlight Problem
Most Samung power supply of that era have an OVP , if go over 415V disable it.
Measure that voltage again ....Leave a comment:
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Re: Can't Melt Solder on Power Board
heat the whole area BEFORE using the iron...Leave a comment:
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Re: Samsung UN48J5000: Backlight Strip Burn
32 led for a 48" at 130V .75A = 97,5W 3W each led . J is code for junk.I saw this before , put a regular led and explode instantlyLeave a comment:
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Re: Can't Melt Solder on Power Board
A small tip don´t have enough power to heat a big surface . Do you have a heat gun ? if so you must heat the whole area before using the iron . Then put some new lead solder to make it easier .Leave a comment:
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Re: 150uf at 450 wv Large Capacitor Blown - I've Never Seen This... Have you?
An open resistor in the voltage sense of the PFC could be the issue .Leave a comment:
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