Question about Sharp LC-32SB23U 32 in. LCD TV
Problem The Tv Green Power Light Blinking Won't Come on (PS) I Try The LC-32SB24U 32in LCD TV Medhod But Istill Have Same Problem I Visual Check The power Control Board With the Power supply On It The Board # RVUJA448W JGZ All The Compond's On The board Show No Sign Of Over Heating Or Bad Connecting The capactor's Seam Ok The Resister' All Seam Be Ok Thy show no sign of Over Heating Or Burn The Board Look Bran New . THINK FOR YOUR HELP.Sign Donald Pierce
Those 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.
If blinks continue without any pause, the main board is faulty.
Search the site by type in the "brand name" to your device, in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.
Posted on May 25, 2017
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Posted on Jan 02, 2017
SOURCE: have a 30" SHARP Aquos LC30HV2U that has a bad power supply. Nothing happens when I turn on the LCD - though it is getting power confirmed by green light going on but nothing on LCD. Visual inspection
You did try the CLEAR button on front of the box?
One possible idea is the cables going the box to the TV. ( might be bad )
If your sure about the problem, you can get your Service Manual here:
This with have all the schematic, diagrams, part number, and test points you need.
Posted on May 17, 2009
Buy the green light going on means Standby is ok. Next, would be to locate the plug coming from the main board to the power supply and find the post that says PO which means power on. With your meter on that post, press the power button as see if the reading goes High, if it does then the main board is able to turn on the power supply. Next, find the plug on the power supply that goes to the inverter( the long board on the side) remove it and see if you have 24 volts coming out of the power supply when you press the power. If you do, then the inverter board is bad, if you don't have 24 v, then the power supply is bad. There are NO diagrams available for these set other than a flow chart if you can find one. A regular svc tech does'nt need a manual for these anyway.
Let me know how you do Kathy ?
Posted on May 17, 2009
Blinking light is an error code. Count the blinks before they repeat. Check your manual in the troubleshooting section. If you can't find it, contact a Sharp service center or try and get a service manual. Reset info is also in the user manual but you can't do it if your set doesn't power up. Are you sure about the power board?
Posted on Apr 30, 2010
Testimonial: "Thank you. I will get another board."
The pattern of the blinking is a code. If the power light is blinking by itself once per second or thereabouts it could be loose connection to Inverters, reload firmware, Inverter Unit or LCD Panel.
Posted on May 06, 2010
Testimonial: "Thank you. I will let you know how it all works out."
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