Question about KLH R3100 Receiver

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Power supply board

The power supply board seems to be the problem because I switch this reciever on and it immedialy shuts down, the fuses are fine

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  • doughboy40 Oct 11, 2007

    where can i get a new board and how will it cost for it?

  • doughboy40 Oct 11, 2007

    nothing is connected to this reciever at all just plug it in and turn it on and it shuts down right away

  • bigron625 Feb 03, 2008

    i turn it on and it and like a secon later it shuts down

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  • 93 Answers

That also can be a PROTECT mode. Maybe you should check connections.

Posted on Oct 11, 2007

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hi, there seems to be dead short somewhere i'd unplug all the leads from the power board and plug one in at time, then power up the set to see which board is blowing the power supply hope it helps

regards
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I have samsung(hitron) tv purchased around 4 years before. When the external power supply(switch) to tv is switched on, tv is not receiving any power. i mean tv is not functioning. what would be the...


Give me the model number for more accurate diagnoses....
It seems as though there is a DC problem on the power supply, it could be a simple fuse. Or it could be that a fault on another board is causing the power supply to shut its self down.....The TV is in self protect mode because of a short an open component somewhere. Like I said it could be just a fuse has blown. If the indicator light is on then its probably not a fuse problem, but rather an electrical fault.
http://tvtechwork.webs.com/

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I have the red power light, but when i turn it on, it completely shuts off, red light and all. Then i have to unplug it from the back to get the red light back


Hello,

Either power supply problem or blown surface mount fuse on the main board. First check all SMD fuses on the main board, and the fuse on the power supply board. If the power supply board fuse has blown replace it and try again, if it blows again you need to replace the power supply. If the power supply seems OK check all SMD fuses on the main board. There are 7 on the V3 and about a dozen on the V4 / V5 / V6.
NOTE.... you have to open the console to do this ...

I hope this help in solving the problem.....

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I had a DES-1024D 24 port D-Link (DLINK DES1024D) switch that simply didn't power up one day. I decided to open it up and look and I noticed that on the circuit board of the builtin power supply (which was an SB10-033100-10 according to the label, 3.3V 2.5A switch mode power supply) there was a bloated capacitor. We have seen this often on motherboards in the past. Therer were 2 electrolytic capacitors at the very edge of the circuit board closest to the front panel of the switch that were 1000uf 10V. The metal tops of these should be perfectly flat and one was bulging upward. I replaced both of these caps and the switch powered up fine after that.

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1 Answer

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HI, this unit has 3 main fuse links on the main board that may be blown. the fuse links should be check before you move further into the diagnosis stage. once you have checked the fuses and they are still in a working state, this will confirm a power supply board failure. this board provides and regulates the current flow and distribution of it throughout the entire unit. If the fuses are fine and the power supply board is damaged, the green light will come on briefly then, the main control will notice that the power supply is not functioning properly. Once the main control board senses an abnormal current, it will shut down the TV rendering the red light warning. The list of fuses to check are below. Remember, if they are fine and working, the issue will be the power supply board itself and, it will need to be replaced.

FUSE CHECK LIST--

3A 12v- fuse----(242208600623)
SM 3A 125v-fuse----(242208600657)
500 MA-fuse-----(242208611092)

PART NUMBER FOR POWER SUPPLY BOARD

(996500036816)


Please rate and god bless:)


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You Need a new Power Supply, part # LJ44-00025A
buy it here for $139 http://www.adc-ast.com/
I have my tv working like new.
If you want this time the power supply last, do not turn off, justpress tv/video button to switch input source, let the tv in sleep mode.

Credit: User IMJR

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Hi jderek4, try this. locate the toggle switch on the back of the power supply. Just find it do not flip it.
Plug the PSU's power cord into the PC. Just as you got a good connection & the PC begains to power up move the toggle switch to it's other position. The PC should power off that very second.
If the PC does not shut off than the PSU is bad. If it did shut down wait a few seconds. Press the cases power on button. The PC should start to boot up. Let it finish loading. Click the start button & choose to shut down windows. The PC should shut off.
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Mike

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How many times per second does the POWER led blink? (dont worry about the OPC).

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You can buy the parts online and fix if yourself!!

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