Question about Sylvania 6842PE 42 in. HD-Ready Plasma Television

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No power up on Sylvania 6842pem and your previous post.

Hello, With reference to; http://www.fixya.com/support/t138717-no_power_up I have the same problem that this user was having but I can not make sense of what is being reffered to in the post. I found and replaced the blown Cap but I could not find the one inch sqaure IC's being reffered to. I have a model 6842pe m. The sticker on the board reads LO652MSS. On the upper right left hand corner of the board it reads E234498 over L0650UA. I have the typical issue as described in the forum. when I turn on the TV it drops into standby mode after about 3 seconds. There is a flashing green LED (D2500) on the left side of the board and a relay clicks on the board when it goes into standby. There also appears to be a slight high pitch buzzing sound coming from the sub power supply board. I am reading 120 volts going to and coming from the sub board.

Any help would be much appreciated. Rick Riccardo_cardona@yahoo.com You posted;
m1013
Rank: Guru
Rating: 87%, 81 votes
You actually lost a scan ic.Looking from the back,look at small vertical boards coming off the main y sus board.The ic's are about 1 inch square.Look for a small hole in one.Depending on the panel you might be able to replace the ic as an assy.

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SOURCE: looking for info on Sylvania 6842 PEM

This RadioShack capacitor is no good - too low a voltage rating. Try replacing it with this one, or something with the same values:

http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail?name=490-4260-ND

This fix worked for me. Best of luck

Posted on Jul 22, 2008

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Still not working


assuming you mean the technics su-ch7 amplifier from your previous post
I have searched fixya and this forum below has been referred before on fixya previously for advice on your amplifier
http://www.allaboutcircuits.com/search?q=technic+su-ch7
and the original posting
http://www.fixya.com/support/t7155686-just_bought_tecnics_su_ch7_integrated

Mar 23, 2016 | Audio Players & Recorders

1 Answer

Sylvania LC420SS8 LCD set will not power up, no lights nothing, tried different plug ins no luck.


The power supply may have gone out, you need to check the main AC fuse in the power supply module and also check the caps.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or PANASONIC FM/FC series Low ESR, 105c, High ripple current and long life rating made for switching power supply from Digikey.com
Parts: www.shopjimmy.com


Please post back what you find.

Dec 06, 2010 | Sylvania LC420SS8 LCD TV

1 Answer

My Sylvania HDTV is in a standby mode. Can you tell me what could be the problem. The power will not come on.


Most problems are due to bad DC filter caps in the power supply module, that will be the first place to look.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com just make sure to use caps with low ESR, 105c rating such as PANASONIC FM or FC series.
Please post back what you find.

Dec 03, 2010 | Sylvania LC225SSX LCD TV

1 Answer

Hi I have a sylvania 6842pem 42 inch plasma. when turning the television on it makes a weird screeching noise then goes to stand by. what can the problem be thanks for the help


your transformer on your power supply is bad, i would recomend replacing the power supply, usually when the transformer goes bad , it damages other things on the board, should be around a 200$ part

Jan 11, 2009 | Sylvania 6842-PEM 42 in. EDTV-Ready Plasma...

1 Answer

Code: 39


Hello there khalid109q.

I'm sorry to be the bearer of bad news, but please refer to a couple of previous related FixYa post's:

http://www.fixya.com/support/t219907-matshita_drivers_toshiba_notebook.

Particularly, this passage in solution 1 by "koparoma" @ http://www.fixya.com/support/t350476-acer_5510_notebook_matshita_uj_845d_dvd:

"Unfortunately there are no updates available for the UJ-8xx series (except for Sony - which won't work on other machines) as it just uses an old generic Windows optical device driver."

I would have to say, after a diligent search of drivers (or ANYTHING for that matter) for your specific device (Mashita UJ-845D), the above quote loudly rings true. I encountered nothing but a void in my search as well.

Good luck, and post back with a status report and/or any further questions.

"Today's the best day of my life...and NOW you're part of it!"

Dec 24, 2008 | Panasonic Matshita- | UJ-845-B | USB 2.0 |...

1 Answer

Power Supply


No. They are entirely different. Panasonic was the supplier of the 6842PE and Funai was the supplier of the 6842PEM.

Oct 18, 2008 | Sylvania 6842PE 42 in. HD-Ready Plasma...

2 Answers

Sylvania Power Board


I had the same issue. Turned out to be a blown capacitor on the power board.
<a href="http://s133.photobucket.com/albums/q68/rwlib3/?action=view&current=DSC_0426.jpg" target="_blank">

Jun 15, 2008 | Sylvania 6842-PEM 42 in. EDTV-Ready Plasma...

1 Answer

Looking for info on Sylvania 6842 PEM


This RadioShack capacitor is no good - too low a voltage rating. Try replacing it with this one, or something with the same values:

http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail?name=490-4260-ND

This fix worked for me. Best of luck

Mar 21, 2008 | Sylvania 6842-PEM 42 in. EDTV-Ready Plasma...

4 Answers

Standby mode


It happened to me.. a FAx to Enrique. in California.

May 01, 2007 | Sylvania 6842PE 42 in. HD-Ready Plasma...

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