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Re: Pop and hiss
Sound not so good. You probably have a bad flyback transistor and now the power supply is fried also.If your lucky all youll have to do if your a tech and only if your a tech is to replace the Hi voltage transformer and the horizontal output transistor. Now these sets have high voltage still around there componets even when the sets unplugged, so please if you wanna invest in the set take it to a pro to assist you in this repair. Good Luck
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hissing noise will be from high voltage regulator, i would suggest to do following:
1. switch tv off
2. remove plug from the wall
3. using air blower (compressor attachment - not leaf one!) blow the dust, especially from high voltage box section
4. connect the tv and switch on
if tv still issue hissing noise - follow 1 and 2 then:
3. remove back cover
4. use air blower again...
5. re-install back cover
6. reconnect tv and switch on
if hissing noise persist - check for blown capacitors on high voltage, replace if necessary, they have nasty tendency to pop if they are too long in storage, especially if tehy were overheated or frozen.
hope this will help you solve the problem, do not forget to vote...
Check the main power supply regulator section for faulty component/s. The sound you heard might be of a bursted electrolytic capacitor at the power regulation stage circuit, due to some spikes in the input AC voltage. Open the TV and check this section. Be sure to unplug the TV from AC mains wall socket, before open it.
This is a protection circuit that prevents the tv from coming on (to stop damage of the components) ....you need to check your voltages off the power supply and make sure they all read well (EX: 24v12v5v etc). Also look for popped capacitors that would make the values lower than need be for the tv to power on properly.
The hiss is a popped (blown) capacitor! You need to replace it before you keep trying to power on the tv...you will cause more damage
three strikes and it's out... rca does this, it is just showing it has tried 3 times for you and untill it is unplugged it won't try again.. you need to provide model #.. could be a few different things
hissing usually meens you have high voltage...that's good but then what don't you have?
ctc 169 - 179 could be high voltage divider... need more info
Contact Archos support and they can provide you the file to repair your disk. Once you have the file stored on your computer, you will then hook up your Archos via USB and copy the file they provide you to the root of the Archos. The direction I got when trying to fix my pop/hissing "If you power on the unit by pressing and holding the TV/LCD button and power button simultaneously the unit will boot into a recovery screen. Once in this screen choose "Repair Disk" and follow the on screen instructions.
When prompted, please place the following file into the 'root directory' of the unit: