TiVo Community
TiVo Community
TiVo Community
Go Back   TiVo Community > Main TiVo Forums > TiVo Series3 HDTV DVRs
TiVo Community
Reply
Forum Jump
 
Thread Tools
Old 05-30-2013, 07:00 PM   #1
RusRus
Registered User
 
Join Date: Apr 2013
Location: Chula Vista, CA
Posts: 164
I Have a Tivo HD DVR

If I do have a failed power supply how will a electronics repair person know which or what capacitor(s) to replace?
RusRus is offline   Reply With Quote
Old 05-30-2013, 08:29 PM   #2
jmbach
Registered User
 
jmbach's Avatar
 
Join Date: Jan 2009
Posts: 786
The capacitors will be bulging or leaking.
__________________
"Delay is preferable to error" - Thomas Jefferson
"If I have seen further it is by standing on the shoulders of Giants" - Sir Isaac Newton
jmbach is online now   Reply With Quote
Old 05-30-2013, 09:05 PM   #3
scandia101
Just the facts ma'am
 
scandia101's Avatar
 
Join Date: Oct 2007
Location: MN, greater TC metro area
Posts: 9,215
Quote:
Originally Posted by jmbach View Post
The capacitors will be bulging or leaking.
Not necessarily.
An electronics repair person would be able to test the capacitors.
__________________
discipuli nostrum bardissimi sunt.
scandia101 is offline   Reply With Quote
Old 05-30-2013, 09:21 PM   #4
jmbach
Registered User
 
jmbach's Avatar
 
Join Date: Jan 2009
Posts: 786
Quote:
Originally Posted by scandia101 View Post
Not necessarily.
An electronics repair person would be able to test the capacitors.
You are exactly correct.

At the same time, if a capacitor is bulging but testing out okay so far it should be replaced. In theory the electronics repair person with the appropriate equipment should be able to detect capacitors that are going bad but visually Ok. The DIY bunch tend to just replace the visually bad capacitors and get a good outcome. If you have a good shop you should be in good shape as they should replace the visually bad capacitors and the ones that test bad but visually look good.
__________________
"Delay is preferable to error" - Thomas Jefferson
"If I have seen further it is by standing on the shoulders of Giants" - Sir Isaac Newton
jmbach is online now   Reply With Quote
Old 05-30-2013, 10:03 PM   #5
poppagene
User
 
Join Date: Dec 2001
Posts: 692
Quote:
Originally Posted by jmbach View Post
You are exactly correct.

At the same time, if a capacitor is bulging but testing out okay so far it should be replaced. In theory the electronics repair person with the appropriate equipment should be able to detect capacitors that are going bad but visually Ok. The DIY bunch tend to just replace the visually bad capacitors and get a good outcome. If you have a good shop you should be in good shape as they should replace the visually bad capacitors and the ones that test bad but visually look good.
Replace them all
poppagene is online now   Reply With Quote
Old 05-31-2013, 10:03 AM   #6
unitron
Registered User
 
unitron's Avatar
 
Join Date: Apr 2006
Location: semi-coastal NC
Posts: 13,475
Quote:
Originally Posted by RusRus View Post
If I do have a failed power supply how will a electronics repair person know which or what capacitor(s) to replace?
What part of the country are you in?
__________________
(thisismysigfile)


"I am altering the deal. Pray I don't alter it any further."

Darth TiVo, 14 February, 2011
unitron is offline   Reply With Quote
Old 05-31-2013, 03:47 PM   #7
chazas
Registered User
 
Join Date: Jan 2007
Posts: 144
Quote:
Originally Posted by jmbach View Post
You are exactly correct.

At the same time, if a capacitor is bulging but testing out okay so far it should be replaced. In theory the electronics repair person with the appropriate equipment should be able to detect capacitors that are going bad but visually Ok. The DIY bunch tend to just replace the visually bad capacitors and get a good outcome. If you have a good shop you should be in good shape as they should replace the visually bad capacitors and the ones that test bad but visually look good.
I just had mine fixed by a local shop that did just that. $50 and I didn't have to spend my time learning how to solder. I'm ok with that.
chazas is offline   Reply With Quote
Old 05-31-2013, 04:16 PM   #8
dianebrat
Uncontrolled Force
 
dianebrat's Avatar
 
Join Date: Jul 2002
Location: boston'ish
Posts: 7,765
General note,
if you find even a few caps with capacitor plague it's worth replacing all of the similar caps at the same time.

There's a very useful tip from my time with hundreds of dead Dell GX270 motherboards, pay attention to the brands of the capacitors, you don't have to actually look that hard or get the actual brand name, but look at the tops, different manufacturers will use different stamping patterns on the top, replace any that have the same embossing as the failed units.

I'm looking at a dead HP power supply now, I have caps with a + on top, caps with a K on top, and caps with an * on top, 5 out of 7 of the asterisk caps are bulging, you can bet I'm replacing all 7.
__________________
"There is a distinct difference between having an open mind and having a hole in your head from which your brain leaks out."
dianebrat is offline   Reply With Quote
Old 06-02-2013, 10:28 PM   #9
RusRus
Registered User
 
Join Date: Apr 2013
Location: Chula Vista, CA
Posts: 164
Quote:
Originally Posted by unitron View Post
What part of the country are you in?
San Diego, CA
RusRus is offline   Reply With Quote
Old 06-02-2013, 10:59 PM   #10
unitron
Registered User
 
unitron's Avatar
 
Join Date: Apr 2006
Location: semi-coastal NC
Posts: 13,475
Quote:
Originally Posted by RusRus View Post
San Diego, CA
Nearest person that I know of (Scott, of lcdalternatives.com) is about 150 miles away in Stevenson Ranch, but San Diego should have at least one good repair shop--it seems to have at least two good vintage audio repair places, so there should be several good non-specialty shops that already know about capacitor plague in power supplies.
__________________
(thisismysigfile)


"I am altering the deal. Pray I don't alter it any further."

Darth TiVo, 14 February, 2011
unitron is offline   Reply With Quote
Old 06-03-2013, 12:36 AM   #11
Worf
Registered User
 
Join Date: Sep 2000
Posts: 1,647
Considering the labour to replace the caps will be WAY more expensive than the caps themselves, replace them all generally is the easiest solution. Even if you go for the primo quality caps.

Though if you want to test them, an in-circuit ESR tester will immediately tell you which ones are bad. (It's the only way to test them in-circuit otherwise if you're going to remove them, you might as well replace them).
Worf is offline   Reply With Quote
Old 06-19-2013, 03:15 AM   #12
jfiberoptic
Registered User
 
Join Date: Jun 2013
Location: China
Posts: 2
The repair man will test it, dont worry about that
jfiberoptic is offline   Reply With Quote
Old 06-27-2013, 07:11 AM   #13
buscuitboy
Registered User
 
Join Date: Aug 2005
Location: Atlanta area
Posts: 693
I had a Series 3 OLED (lifetime) with a bulging cap. A local repair shop basically charged me $17 to fix it. Got it back and all has been working good.

Of course, I now have ANOTHER (lifetime) series 3 OLED with a bulging cap and is caught in a reboot loop so I have to do this again. Oh well & it STILL beats paying Comcrap for one of their crappy DVR boxes ($15-20/month).
buscuitboy is offline   Reply With Quote
Reply
Forum Jump




Thread Tools


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Advertisements

TiVo Community
Powered by vBulletin® Version 3.6.8
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
vBulletin Skins by: Relivo Media

(C) 2013 Magenium Solutions - All Rights Reserved. No information may be posted elsewhere without written permission.
TiVoŽ is a registered trademark of TiVo Inc. This site is not owned or operated by TiVo Inc.
All times are GMT -5. The time now is 05:43 PM.
OUR NETWORK: MyOpenRouter | TechLore | SansaCommunity | RoboCommunity | MediaSmart Home | Explore3DTV | Dijit Community | DVR Playground |