Question about Sharp LC19DV22U 19 in. LCD Television
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
New users get 2 Free calls (no credit card required) and instant help on almost anything you can think of (from cars to computers, appliances, handyman, and even pets).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
There is no difference between a 125v and 250v fuse. The most important thing is the 2Amp. This fuse is probably the line fuse and could be the only trouble and may have blow with a line surge. Make sure the 2A you use is a Fast Blow Type. If it does blow again you most likely have a internal power supply failure.
Posted on Apr 19, 2009
There is some leaky mains rectifier diodes on the circuit. Before switching it on, replace all the four mains rectifier idiodes, or a rectifier stack, whatever it may be. Replace the mains filter capacitor that has bulged also' It may have got damaged. Check all the related components on the power regulator section and replace the suspected. Do these things, and inform me the progress. Feel free to contact me through Fixya. Ok.
Posted on Dec 29, 2010
First of all you should weight the cost benefit of repairing the set versus purchasing a new one.
Depending on the size and model of tv, it may be more prudent to simply cut your losses and buy a new tv rather than spend money swapping out circuit boards in the hopes of repairing a set in questionable condition already. Main / Power Supply / LCD Controller boards will typically run you about $100 each to replace, so weight that against the purchase price of a new tv that comes with a warranty.
Given that, if you are still intent on trying to repair the tv, and it does since you have gone out and acquired a service manual, there are steps you can take.
First of all the service manual should give you some idea what the blink pattern means on the front panel lights. Look that up first.
It does sound power supply board related, but bad capacitors are not always as obvious as the tell-tale bulging or gunk-leaking ones.
Use the manual to find out what voltages you should be getting out of which wires coming off the power supply board. In general, some will be 5VDC, some will be 12VDC, and some will be 24VDC. Test them with a multimeter and see if you are missing any.
Obviously this test requires you to have the unit plugged in and powered up with the safety covers removed. I cannot stress enough the potential dangers involved and if you are not confident with that level of maintenance, I would recommend you leave the live power tests to the trained technicians.
You said you didn't see any bad capacitors, so you may want to just unclip, pull out and then reseat all the multi-wire connector you can get to in case one of them just has a bad connection.
Good luck in the troubleshooting.
If you have any questions or require any further assistance please comment back on this page and I will do my best help you. Please provide the model number of your tv next time as well.
If this was at all helpful, please click on the 4 Thumbs Up rating icon above.
Thank you very much.
Posted on Feb 15, 2011
The power supply/backlights inverter board may have gone out, see the board here:
Inspect the main fuse and caps first.
Basic LCD monitor and TV troubleshooting guide:
Failed TV and Monitors pictures: 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 www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.
Posted on Jun 21, 2011
Tips for a great answer:
Aug 02, 2012 | LG 17LX1R 17 in. HD-Ready LCD Television
Apr 20, 2011 | Sanyo 42 in. LCD TV
Feb 19, 2011 | Sylvania LC370SL8 37 in. LCD Television
hi. I had the same problem and to fix it you need to take printers right-side cover off. Underneath you'll find a Power Supply Board - hidden under metal cover. Take it out and disconnect two cables from it. Now, I had to replace an fuse 125V 4A and varistor E241AD 83P on the Power Supply Board in mine HL-2140. It works fine now.
Note: I could not find the exact replacements in electronic store so I used:
- fuse: 250V 4A
- varistor: FNR 10K241 (241 is the important number)
Hope it helps.
Oct 15, 2010 | Office Equipment & Supplies
Aug 17, 2010 | Samsung LN52B610 52 in LCD TV
Jun 15, 2009 | Pioneer SD-533HD5 53" Rear Projection HDTV
Apr 15, 2009 | Panasonic CT-32SL13 32" TV
Aug 10, 2007 | Mitsubishi WS-55513 55" Rear Projection...
Dec 08, 2010 | Sharp LC19DV22U 19 in. LCD Television
148 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: