| Page: |
| Home > Show Us Yours! > OT - a few PCBs larger than MegaSquirt ones.... | |||||||
 (2)[/url] by [url=https://www.flickr.com/photos/150672766@N03/]Rod Sugden[/url], on Fli) 5988 Posts Member #: 2024 Formally Retired Rural Suffolk |
18th Nov, 2010 at 03:25:42pm
A small flash and a load bang from the back of my TV (Pioneer 3rd generation plasma) last night.....
Schrödinger's cat - so which one am I ??? |
||||||
 16540 Posts Member #: 4241 King Gaycharger, butt plug dealer, Sheldon Cooper and a BAC but generally a niceish fella if you dont mind a northerner Rotherham, South Yorkshire |
18th Nov, 2010 at 03:28:25pm
I've got a 42" Kuro. Bloody good TV! On 11th Feb, 2015 robert said:
i tried putting soap on it , and heating it to brown , then slathered my new lube on it 
|
||||||
|
Forum Mod  1927 Posts Member #: 1761 Stalker Bristol |
18th Nov, 2010 at 03:31:23pm
I can't believe Pioneer have sold off their tech rights! That means any Kuros left are going to command an even bigger price tag now :(
|
||||||
 730 Posts Member #: 1791 Post Whore Cranleigh, surrey |
19th Nov, 2010 at 10:01:10am
I wouldn't of thought a load bang would equate to 2 tiny resistors? sure none of the capacitors are open circuit?
"Cars are a lifetime of pain" |
||||||
|
5988 Posts Member #: 2024 Formally Retired Rural Suffolk |
19th Nov, 2010 at 02:08:04pm
On 19th Nov, 2010 ministef1 said:
I wouldn't of thought a load bang would equate to 2 tiny resistors? sure none of the capacitors are open circuit? stef Stef, Haven't checked the capacitors with my trusty DVM yet but visually they are all perfect - I've seen plenty of PC PSUs with failed ones that went with a bang and it's allways been obvious if it was a capacitor. According to my research, those resistors are a common failure on early boards - despite their size they are high power wire wound ones, very low resistance (0.1 and 0.47 Ohm) running at high voltages as current limiters to a couple of FETS. So I've checked and one of the FETs is failed (dead short) - apparently this is the usual failure mode, FET goes dead short and takes out the resistors and the flash/bang is quite normal...... I've managed to track down a supply of new boards at £127 inc. (and available off the shelf, not special order) but I'm going to try swapping out the resistors and FETs first..... After building Megasquirts, wideband controllers, display units etc for the Mini, this will be easy :) Worst I can do is blow up the board completely (one person who posted on the web failed to spot one of the FETs was shorted and blew not only his new resistors to bits but blew several other components off the board too......) Schrödinger's cat - so which one am I ??? |
||||||
|
388 Posts Member #: 442 Senior Member Manchester |
19th Nov, 2010 at 03:36:42pm
Restors do go with a fair pop, so do small caps, I reckon if one of those big buggers blew it would put a new air vent in the back of your telly. |
||||||
 12307 Posts Member #: 565 Carlos Fandango Burnham-on-Crouch, Essex |
20th Nov, 2010 at 02:08:24pm
for some reason big caps dont go as well as you'd hope, the tend to whoosh rather than bang, an spunk their electrolite all over the place... On 28th Aug, 2011 Kean said:
At the risk of being sigged... Joe, do you have a photo of your tool? http://www.turbominis.co.uk/forums/index.p...9064&lastpost=1 https://joe1977.imgbb.com/ |
||||||
|
388 Posts Member #: 442 Senior Member Manchester |
20th Nov, 2010 at 04:29:24pm
scared the crap outta me when a small one blew on the video card in my pc. I remember seeing the huge ones in the back of old tv's. |
||||||
 2909 Posts Member #: 83 Post Whore Glasgow, Scotland |
20th Nov, 2010 at 06:10:51pm
before teh caps bang though theres usually a visual deformation of there "cap" (excuse the pun) or oosing of electrolyte from underneath. if ther just shunts for the fet's it stands to reason that the FET(s) failed first. hope its an easy fix! turbo 16v k-series 11.9@118.9 :)
|
||||||
| Home > Show Us Yours! > OT - a few PCBs larger than MegaSquirt ones.... | |||||||
|
|||||||
| Page: |