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bogie

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Reply with quote  #16 
I understand the math dose not add up 20.00 for meter 17.50 for unit LoL
But what would guaranty that a 17.50 fleabay unit would work and if for how long?
personally i find repairing of the unit to be Fun and give me more of a self satisfaction.
Yes i know is not easy being a loony [biggrin]
wish you luck with this venture 
cheers
bogie

boblop

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Reply with quote  #17 
E Bay shows 6 units sold this year with one being only $0.99 to win with a remote also.

If I was married to one of these units I would ask on all of the sat fourms  if anyone had a working unit for sale, cheap! With new boxes just over $100 and up I would move on to newer and better stuff.

But after you get a $25 meter and $15 in new caps and a $20 soldering iron then you can think about the still not working old unit and perhaps getting a new unit that works. 


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wejones

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Reply with quote  #18 
I had lightning take out the power supply on my first 8100.  I tried to fix it, but wasn't able to get anywhere with it.  So I modified the power supply from another older receiver, and got it to generate the same voltages.  Hooked that up, but the receiver still wouldn't boot up.  So I guess when the power supply went out, it must have fried something on the motherboard.   Hoping to read the values off the old power supply, I looked all over, and found the 8100, but couldn't find the power supply.  I had taken it out of the 8100, and may have thrown it away.   I just now, took the top off my newer working 8100, but it has the goop on the 2 small capacitors.  I didn't want to mess with that.  If I find the power supply, I'll pull the capacitors to get a better look at them.



andyinyakima

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Reply with quote  #19 
Quote:
Originally Posted by wejones
I had lightning take out the power supply on my first 8100.  I tried to fix it, but wasn't able to get anywhere with it.  So I modified the power supply from another older receiver, and got it to generate the same voltages.  Hooked that up, but the receiver still wouldn't boot up.  So I guess when the power supply went out, it must have fried something on the motherboard.   Hoping to read the values off the old power supply, I looked all over, and found the 8100, but couldn't find the power supply.  I had taken it out of the 8100, and may have thrown it away.   I just now, took the top off my newer working 8100, but it has the goop on the 2 small capacitors.  I didn't want to mess with that.  If I find the power supply, I'll pull the capacitors to get a better look at them.





wejones,

My understanding now is that the 8100 has a separate power supply board. Am I right or wrong?

If the board is indeed separate and  a person can deduce the voltage outputs  of that supply they might be able to take a cheap PC power supply and convert it to the 8100 needs. Nice thing about a PC power supply is that it is forgiving, it will shut down if you draw to much current. At least the newer ones do.

Then again if the 8100 supply has but a few parts bad then I would opt to repair the original.

Repair is rewarding but retrofitting is also.

Never ever throw a PC power supply away until it smokes? lol

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andyinyakima
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wejones

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Reply with quote  #20 
Quote:
Originally Posted by andyinyakima
Quote:
Originally Posted by wejones
I had lightning take out the power supply on my first 8100.  I tried to fix it, but wasn't able to get anywhere with it.  So I modified the power supply from another older receiver, and got it to generate the same voltages.  Hooked that up, but the receiver still wouldn't boot up.  So I guess when the power supply went out, it must have fried something on the motherboard.   Hoping to read the values off the old power supply, I looked all over, and found the 8100, but couldn't find the power supply.  I had taken it out of the 8100, and may have thrown it away.   I just now, took the top off my newer working 8100, but it has the goop on the 2 small capacitors.  I didn't want to mess with that.  If I find the power supply, I'll pull the capacitors to get a better look at them.





wejones,

My understanding now is that the 8100 has a separate power supply board. Am I right or wrong?

If the board is indeed separate and  a person can deduce the voltage outputs  of that supply they might be able to take a cheap PC power supply and convert it to the 8100 needs. Nice thing about a PC power supply is that it is forgiving, it will shut down if you draw to much current. At least the newer ones do.

Then again if the 8100 supply has but a few parts bad then I would opt to repair the original.

Repair is rewarding but retrofitting is also.

Never ever throw a PC power supply away until it smokes? lol


 Yes, it's separate, and like I said above, I figured out what the voltages should be, and converted a power supply from another receiver, but apparently my motherboard was bad.  I tried to troubleshoot the power supply, but I think there was some IC that seemed to be bad, and I couldn't find a replacement.  I have enough old power supplies that I needed to start throwing out a few or my wife wouldn't have been as agreeable when I wanted other sat stuff. 


ind224

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Reply with quote  #21 
8100 caps 2.JPG  8100 caps 1.JPG 20140920_224203[1].jpg   
A film an electrolytic and a ceramic.    33uf 50v electrolytic   not sure  film markings   104 on ceramic like when I was younger.  Blue monster is also listed as C24, MOV.  Still can't get pics to behave .

boblop

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Reply with quote  #22 

Those pictures are a good example of how parts may be glued or waxed together to help support the parts and prevent the parts wire legs from being broken off.

As to the value of a pc power supply to replace a receivers own power supply I noted the difference between two different Coolsat receivers voltage needs. Those separate receiver power supply boards are a rather simple electronic device. If one can not repair one of them then they probably need just get a new working receiver. But as to repair in general with the smaller surface mounted parts on the main receiver boards who among us can solder these very small parts?

The fact remains that there are very few parts inside of most FTA receivers that only a few of us could ever change out with a soldering iron. If one could find a TV repair shop today most likely they just replace whole plug in circurt boards to make a repair. The secret there is to know which separate board is bad and to know where to get a working replacement board.

So one more time "there are no user replace-able parts inside". So cutting out a part with glue on it and replacing with a same part may not repair a bad receiver. Most broken FTA receivers are too small and light weight to make a door stop or a boat anchor. New replacement FTA receivers start at just over $100 each.

Rick has a nice selection of new FTA receivers to choose from.


  


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boblop

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Reply with quote  #23 
http://www.ebay.com/itm/Coolsat-8100HD-Micro-PVR-M-peg2-M-peg4-NO-REMOTE-TURNS-ON-/131288907789?pt=US_Satellite_TV_Receivers&hash=item1e916dc00d

Just found on E Bay for only $199 with no remote a Coolsat 8100 that turns on but no pictures and no info if it will tune or receive a sat signal. Perhaps a good power supply board for just $199.

Rick has a nice selection of new FTA units that will lock and tune sat signals.

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bogie

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Reply with quote  #24 
Since i have not owned one of these units is there something special about the 8100?
As our friend mentioned Rick has lots of great receivers that will do both atsc and s2 .
as matter of fact on my request he just found me a pansat tc 1000. i like that unit for the reason that it has atsc with epg and dvb S2. i wanted the unit to add to my collection.
But if you like your 8100 i am sure that the power supplies is the most simplest board to repair since i don't see any surface mounted parts.


cheers
bogie
 


andyinyakima

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Reply with quote  #25 
If you buy new;
buy one with a better features;
more user friendly;
new innovations;
better guarantee;
at least one of the above.
It helps justify the purchase!

Don't buy used unless,
you like to repair!

Save the old one if you have the room;
you may want to reminisce!

I do occasionally! lol


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andyinyakima
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Open Book, Open Source, You have to Open it to Know what's in it!
techjunkie02

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Reply with quote  #26 
One other thing.. If you want to repair it, try to find an old TV/VCR repair tech, and take it to him. I know they are hard to find nowadays, but if you can find one, he'll know what to do with it and probably won't cost you too much either.
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seefoo

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Reply with quote  #27 

The picture shared by ind224 shows two of the three that i suspect are bad. I didn't know what 50/33 meant but now I know. I still don't know about the 104. 104 what? 
I appreciate all the comments and advice. I know that there are many options but I also have an HTPC with a prof tuner, an Azbox premium plus so I'm not hurting for a receiver. I'm just having fun and hopefully learning something along the way. The coolat 8100 is an old friend and just hard to part with. 
I thank all of you for your help.

Dave

majortom

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Reply with quote  #28 
Like bobplop, I would have to see some evidence that anything was wrong with the receiver to begin with before recommending fixes or a new receiver. The OP never even stated what his issue(s) is/was... For all we know he could have been having issues with his antenna system, which may not be fixed by merely replacing with a new receiver.


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ksmike

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Reply with quote  #29 
The Electrolytics usually go bad, don't worry about the little ones. Get help if you can't solder.

"I still don't know about the 104. 104 what?" Pico Farads

The 104 means 10, with 4 zeros behind it, or 100000 pico farad.

This is 1 pico farad: .000000000001
or this many places: .000000000000
if you add 100000 or actually 1/100000 to .000000000000 you get .0000001 which is equal to .1 uF, or .0000001 Farad.

See refrence here,
http://wiki.xtronics.com/index.php/Capacitor_Codes


from web page:

1 mili Farad (or any other unit) is 1/1,000th or .001 times the unit. (10-3)

1 micro = 1/1,000,000 or 0.000 001 times the unit (10-6 )

1 nano = 1/1,000,000,000 or 0.000 000 001 times the unit (10-9 )

1 pico = 1/1,000,000,000,000 or 0.000 000 000 001 times the unit (10-12 )

bluzee

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Reply with quote  #30 
I have a CS8000.  Essentially the same as 8100 except no USB for recording.  Getting to be a lot of stuff it won't tune or play.  If it ever blows up I wouldn't bother trying to fix it.  Better off calling Rick for something more up to date.
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