Sylvania LC420SS8 LCD TV - Answered Questions & Fixed issues


I had the same problem. I have the 40 inch Proscan and they supplied a remote control guide for comcast. It was only 4 digits and it did not work. I called Comcast and they did not know. I found it needed 5 digits so I added a 1 and it worked The code is 10178. Hope it works for you.

Sylvania... | Answered on May 11, 2017 | 8,708 views


Hi Juan,
the resistor values you want are:
R52
2
RES METALIZED FILM T 1/4W F 3.92k?
R524
CARBON RES. 1/4W J 10k?

The complete Service Manual is available as a .pdf Here:
Sylvania LC420SS8 LCD TV Service Manual
Its free to view, but you'll have to agree to a free 14 day trial membership to download it. Hope this helps you,

Sylvania... | Answered on Jan 22, 2016 | 97 views


These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. http://electronicshelponline.blogspot.com/
Blinking codes details to many popular brand TVs are given. Surf the site with patience.

Sylvania... | Answered on May 26, 2015 | 253 views


usually with screws provided

Sylvania... | Answered on Mar 15, 2015 | 36 views


These blinks [flashes] are fault indication (Error Codes).From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it.This will make repair easy.These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times.Count it carefully.If you wish to get some details, check the site linked here.It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices.http://electronicshelponline.blogspot.com/
Blinking codes details to many popular brand TVs are given.Surf the site with patience.

Sylvania... | Answered on Sep 22, 2014 | 384 views


0029,0026,0039,0035,0033.
Try these codes. If you wish to get more details; check the sites linked here. It has set-up code list & set-up procedure to many popular brand remote controls. Common codes to check devices with different brand TVs are given, in the order of the device's brand name list in alphabetical order. Pull up older posts. Surf the site with patience.
http://remotesearch.blogspot.com/
http://electrohelponline.blogspot.com/

Sylvania... | Answered on Aug 25, 2014 | 153 views


Try reprogramming the channels.

www.aaatvservice.com

Sylvania... | Answered on Aug 16, 2014 | 19 views


Check battery contacts, make sure they are clean or change batteries.
Jurgen

Sylvania... | Answered on May 31, 2014 | 304 views


Connected to what source?

Sylvania... | Answered on Apr 04, 2014 | 44 views


Main power supply regulator board is faulty. Replace it as card basis. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy.
http://electronicshelponline.blogspot.com/

Sylvania... | Answered on Mar 24, 2014 | 61 views


In other words, the set is dead. Check and replace its main power regulator [SMPS], first. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy.
http://electronicshelponline.blogspot.com/

Sylvania... | Answered on Mar 24, 2014 | 40 views


In my area, Comcast has blocked all free watchable basic channels. You now need a very small but special box to receive those. If it's a conventional cable box, you might have to call them to send a signal to reset it.

Sylvania... | Answered on Feb 15, 2014 | 47 views


Check the tv menu to ensure that speakers are on. And disconnect any cables that went to the surround sound.

Sylvania... | Answered on Dec 01, 2013 | 58 views


Check and replace its main power supply regulator board as card basis.

Sylvania... | Answered on Oct 21, 2013 | 109 views


had a dell that does the same, tried many fixes. finally just replaced the monitor. easiest and most cost effective fix, in my opinion

Sylvania... | Answered on Oct 16, 2013 | 26 views


024,038,082,099,000 are the codes to check. If you wish to get more, check these links. http://remotesearch.blogspot.com/
http://electrohelponline.blogspot.com/
Pull up previous posts by its left sidebar, or type in the brand name and model number to of your set, to its search box, and press 'Enter' or view it in Mosaic / Timeslide option.

Sylvania... | Answered on Sep 19, 2013 | 25 views


Seems like capacitor problem, chack them and if thay have exploded replace them.

Sylvania... | Answered on Aug 25, 2013 | 124 views


if the audio works then the inverter board would be suspect. If audio doesnt work either then the main board would be suspect. You can get replacement boards from www.tvcircuitboards.com

Sylvania... | Answered on Feb 09, 2013 | 46 views


Look first in menu to see if speakers somehow are switched to off. Look to see if sound with a DVD etc connected to one of the rear sets of inputs----also depending on hookup a cable or sat box can cause this also.

Sylvania... | Answered on Oct 17, 2012 | 70 views


Have you checked your remote to see if its working? If you have a digital camera or camera phone, point the remote at the lense and see if it shows up on camera screen. If it is working then the IR sensor on the tv could be bad.

Sylvania... | Answered on Jul 17, 2012 | 452 views

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