The popping from the speakers is in a steady rythem. and the light on the front of tv flashes over and over.
Power supply related and maybe the part for the audio circuit.
SOURCE: Akai LCT2716 Flat Panel TV
I bought one of these tv's at a thrift store and it had the same problem, orange light blinking and static sound coming out of the speakers, no video at all.
The problem was the power supply board, this power supply has multiple outputs that feed the circuitry, 12V, 24v, 5V.
There was nine electrolitic capacitors I had to replace to fix it, all of them were bulged they are easy to spot, I measure one of them that was supposed to measure 1000uF but measured only 65uF. you can buy these from digikey for about 50 cents each, they need to be rated at 105 deg c and the profile has to be below the heat sink otherwise they will hit the top of the heat sink, the spacing between the leads has to be 5mm so they fit in the pcb. I replaced 3 1000uF/25v, 3 470uF/16v and 3 1000uF/16v and that fixed the problem, I bought this tv broken for 100 bucks fixed it with 6 bucks.
Good luck, don't perform repair if you are not familiar with dangerous AC voltage inside the TV.
SOURCE: vizio 47" lcd no picture no sound has power
this could be one of two problem. first, check if you have back light. If you do then the problem is with the M/B. Second, if you don't have back light then the inverter is bad and needs to be replace.
SOURCE: no picture or sound, light comes on in the front and have to unplug tv to turn it off.
I had this exact problem on my Vizio 47" HDTV. I removed the speakers and all the screws on the back cover. Took the cover off and located the fuses on the largest circuit board. The are in the upper right hand corner of the board. There are 3 of them in a row labeled LF 1.5, LF 3.0 and LF 3.0. The are white in color with copper ends. I took a volt meter and measured continuity across all fuses individually and found the LF 1.5 to be blown. The guy at the electronics store sold me a barrel 1.5A fuse and told me to soldier it across the top of the blown fuse. It took an extra set of hands but the TV works perfectly.
SOURCE: screen is black but we have sound
The problem is a faulty inverter kit (2 boards).
I live in the Netherlands and had it twice, tv is 2 and a half years old! In the Netherlands Philips replaces the inverterkit without any
costs for the consumer (even after warranty time) cause they have
admitted that it is a production fault.Philips made a new inverterkit
which should solve the problem indefenit.Be sure the kit is Version
1.3! I had 1.2 after the first problem, and that went wrong after 7 months again. Today got revision1.3 installed which is Philips final solution.
Testimonial: "Thanks very much for your help. I will contact Phillips Ireland and see what they can do.Thanks again"
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