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OK thanks, I will order those up! I really appreciate the help!...
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Thanks. How about this replacement:[LIST][*]2.2UF, 50V - I have 55 mA Ripple/4.5 Ohm ESR Caps, I found .45 mA/1.8 Ohm Caps, would these be better? Note the lower ESR but lower Ripple[/LIST]I'm assuming the other replacements are OK?- Thanks. How about this replacement:[LIST]
- 2.2UF, 50V - I have 55 mA Ripple/4.5 Ohm ESR Caps, I found .45 mA/1.8 Ohm Caps, would these be better? Note the lower ESR but lower Ripple[/LIST]I'm assuming the other replacements are OK?
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I've had one of them go bad on another power supply, but I will leave the original on this power supply.
Any thoughts on which of those values (ESR or Ripple) would have an impact in the HDMI video signal?...
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Also which of those values (ESR or Ripple) would have an impact in the HDMI video signal?
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OK I went through my list one by one and saw what I could find, replacement wise, focusing on low ESR and High Ripple. Here is what I found:[LIST][*]470UF, 200V - I already have the lowest ESR and Highest Ripple cap listed[*]47UF, 50V - I have 300mA Ripple/430 mOhm ESR Caps, I found 405mA Ripple/140 mOhm ESR caps, I assume these would be better (lower ESR & higher Ripple)[*]10UF, 25V - I have 160mA Ripple/1.5 Ohm ESR Caps, I found 230 mA Ripple/520 mOhm ESR caps, I assume these would be better (lower ESR & higher Ripple)[*]2.2UF, 50V - I have 55 mA Ripple/4.5 Ohm ESR Caps, I found .45...
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OK I will see if I can find aset of 8 with lower ESR than the ones I listed, and for Ripple I should look for higher?...
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Can't find exact matching caps for replacements, what should I get to prevent video issues?
I have an old Tivo. The Power Supplies are known to have caps that fail. Here are the caps that come with the original power supply:
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I could not find replacement caps with the exact same specs. I followed an online guide and recapped the power supply with caps with these...Last edited by SluggerB; 04-05-2024, 07:49 PM.
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Re: Copy-protected DVDs
Funny I had the same thing just happen to me with an external drive. I just tossed it in the trash and put an old internal DVD drive i had laying around in my PC. Those things are all such cheap junk now it's no surprise they fail so easily.
First mainstream appearance of Ex-Nickelodeon Producer Dan Schneider. Real pedo piece of work, that guy....
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Re: how to achieve admin rights on win10 tablet?
Boot to Win10 install media
On install screen hit Shift+F10 to get to command prompt
switch to C drive
copy c:\windows\system32\Utilman.exe c:\windows\system32\Utilman.bak
copy c:\windows\system32\cmd.exe c:\windows\system32\Utilman.exe
Reboot tablet, at login screen click the Ease of Access button, it will launch a command prompt, net user Administrator *, Enter, Enter and that should remove the Admin account password
And I agree with you, the whole idea...
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Re: Tivo Series 3: Green blinking light of death
No, the hot air "trick" never actually did work for me. The owner of the board says it worked for him. Here's what I have done so far
Swapped the 3003 chip & 3002 chip, both are chips near where the hot air was applied
Swapped both large SMD caps in between those chips
Recapped all the AL SMD the entire area (14 caps) and put in 25v caps to replace the old 6.3v ones
Swapped the voltage regulator in the area
Swapped another chip labeled U11 in the area (that several of...
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Re: Tivo Series 3: Green blinking light of death
Well, I recapped the board where the hot air was being blown, no dice
I also jumpered from a known 1.37v source to Test Point J, still no dice.
I did find a chip that was shorting across several legs, and in my board it was not, I swapped my chip over to the bad board but the shorts were still there, so I am going to follow all the traces to everything that chip is connected to and check it out. This is a real challnege to fault find
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Re: Lifted trace, how to glue back down?
I usually replace the trace/pad with a small piece of copper tape that is a little larger than the original trace/pad, then apply conformal coating around the edge of it to bond it to the board.
I've had bad luck with Superglue, I can get it to stick but when I try and solder to whatever I glued down it usually comes back off again. But that's probably me just doing it wrong
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Re: Tivo Series 3: Green blinking light of death
Think you may have been onto something with the AL SMD caps.. I was looking at the caps and getting the values, and in my working Tivo, ALL the caps are Panasonic, in the other about 1/2 are Panasonic, the other half are not, I'm not sure who the manufacturer is.
Also, there is a bank of 5 large capacitors that on the bad Tivo are rated for 6.3 volts. On my Tivo they are rated at 25 volts. And those 5 capacitors are right where the hair dryer was blowing. AND Test Point J is connecting to one of them. So that's a lot...
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Re: Help identifying Aluminum Electrolytic SMD cap values
So I have two Tivo's and it turns out the other Tivo has all Panasonic caps, so I can read them all. the first one has a mix of manufacturers with different codes
So in the interest of posterity in case anyone stumbles across this in the future and is looking for similar Cap values, here's what I got off the other Tivo:
Cap #1: 22uF, 35v
Cap #2: 15uF, 16v
Cap #3: 220uF, 35v
Cap #4: 220uf, 16v
Cap #5: 47uf, 35v
Cap #6: 1uF, 50v
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Help identifying Aluminum Electrolytic SMD cap values
I am trying to re-cap a Tivo unit, but am unfamiliar with how to decipher SMD Aluminium cap codes to capacitance and voltage values to swap them out. Here's what is on each cap...
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Re: Hep Connect Oukitel Rt 2 Android 11 to PC
If you are just trying to transfer files use a Wifi File Transfer app, they always work, are simple to use, and skip all the Android USB driver hell. There are plenty out on the play store
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Re: Tivo Series 3: Green blinking light of death
I'll keep probing
I have a can of freezing spray to find overheated chips, I will give it a shot. I may just blind swap the RAM chips to, there are only 4 of them and I need the hot air practice.
I will mention that the Tivo is not mine, and not essential, so if it is unrepairable it's no loss, but I would love to get it working again.
Thought on the 1.3v injection to that CPU pad?...
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Re: Tivo Series 3: Green blinking light of death
One other thing, when I first did the CPU test point measurements, test point D was also showing 0.33v, upon inspecting the board I found a bridge on two legs of the first memory chip that must have happened when I reflowed them. I wicked away that bridge and D started showing the correct 1.30v after that. So it could be a RAM issue?
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Re: Tivo Series 3: Green blinking light of death
Well, All I can say is the capacitors in that area read the correct voltages, and the 5 I have removed tested correct capacitance on my multi meter. I have not removed all of them and don't have an ESR so you could be 100% correct in your initial assessment. Turns out removing SMD caps is not a specialty of mine and traces were getting torn so I stopped.
The board does come to life, the fan spins, the HDD spins, the CPU heatsink gets to the normal warmth. But it gives that blinking green light error...
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