UK Vintage Radio Repair and Restoration Powered By Google Custom Search Vintage Radio and TV Service Data

Go Back   UK Vintage Radio Repair and Restoration Discussion Forum > Specific Vintage Equipment > Vintage Television and Video

Notices

Vintage Television and Video Vintage television and video equipment, programmes, VCRs etc.

Closed Thread
 
Thread Tools
Old 19th Jul 2020, 9:38 pm   #1
IKC2E51R8
Hexode
 
Join Date: Aug 2018
Location: Dublin, Republic of Ireland.
Posts: 492
Default Ferguson IKC2. Something went BANG!

Hi All

Have a problem with my favorite tv, My Ferugson A51F (IKC2), was watching it for a few hours today and when to go get a drink, was half way downstairs when i heard a crackling sound and POP, rang back into the room and Thick Grey smoke was Pouring from the set and it stank.

The set was still on, video paused as i had left it but smoke was billowing from the back of it, turned it off and id say within 30 seconds the entire room was filled with smoke, Opened the window and thankfully had a Facemask close by to reduce me inhaling the fumes (a bit), got the smoke cleared out (pic below is traces of smoke still seeping out the back about 5 mins afterward).

Opened the set up and couldnt see anything wrong, no bulged or blown caps, no resistors that look like they ignited, nothing, everything looks good so im baffled as to what actually popped in the set (See pics of the board if you can spot anything) While I had the back off i turned it back on and as i suspected it powered up and ran fine, no more smoke, no strange noises it just started up as if nothing happened.

has anyone seen an IKC2 do this before? can anyone help me figure out what exactly could have happened? its strange seeing as the set seems to be operating perfectly yet that initial crackling and pop and the amount of smoke something definatly went bang in it somewhere but i cant spot anything.

Hope you guys can help, this is my favorite set of all my CRT's and want to prevent any further damage so have it stored away till i can (Hopefully) get some suggestions on what it could be before i start using it again.

Its only ever had a new flyback last year and other than that has always worked perfectly. In 9 days time it'l be 29 years old (Sticker dated 28th July 1991 on the inside of the cabinet)
Attached Thumbnails
Click image for larger version

Name:	20200719_182458 (1).jpg
Views:	284
Size:	29.9 KB
ID:	211364   Click image for larger version

Name:	20200719_183848.jpg
Views:	322
Size:	114.6 KB
ID:	211365  
__________________
Cheers,
Luke
IKC2E51R8 is offline  
Old 19th Jul 2020, 9:54 pm   #2
Simon Gittins
Heptode
 
Join Date: Jan 2006
Location: Cornwall, UK.
Posts: 501
Default Re: Ferguson IKC2. Something went BANG!

I don't know this model but this sounds like typical mains filter capacitor failure. If you do a forum search for "Rifa" you will get an idea what to look for, perhaps near the on-off switch.
Simon Gittins is offline  
Old 19th Jul 2020, 9:55 pm   #3
19Seventy7
Octode
 
19Seventy7's Avatar
 
Join Date: Jun 2018
Location: Essex, UK.
Posts: 1,306
Default Re: Ferguson IKC2. Something went BANG!

Could it be the mains smoother?

Most, if not all, sets work without them, but when they go, they don't go quietly.

Check near where the power lead comes in, around the PSU.

Edit: Post crossed with Simons

Good luck
'77
19Seventy7 is offline  
Old 19th Jul 2020, 10:00 pm   #4
Outrun_uk
Heptode
 
Join Date: Aug 2009
Location: Liverpool, Merseyside, UK.
Posts: 704
Default Re: Ferguson IKC2. Something went BANG!

Check inside the red cage, IIRC the live side of the PSU lives in there.
Outrun_uk is offline  
Old 19th Jul 2020, 10:01 pm   #5
1955APREN
Hexode
 
1955APREN's Avatar
 
Join Date: Nov 2010
Location: Market Drayton, Shropshire, UK.
Posts: 483
Default Re: Ferguson IKC2. Something went BANG!

Hi Luke
This sounds that it might be the mains filter cap. more so if of the Rifa type
possible mounted across the on/off switch or is on the main board under the red cover at the front of the board . Set will work with out it (as you say)but replacement must be of the X2 type . hope this might help.
Derrick
1955APREN is offline  
Old 19th Jul 2020, 10:04 pm   #6
1955APREN
Hexode
 
1955APREN's Avatar
 
Join Date: Nov 2010
Location: Market Drayton, Shropshire, UK.
Posts: 483
Default Re: Ferguson IKC2. Something went BANG!

post crossed while typing
Derrick
1955APREN is offline  
Old 19th Jul 2020, 10:21 pm   #7
IKC2E51R8
Hexode
 
Join Date: Aug 2018
Location: Dublin, Republic of Ireland.
Posts: 492
Default Re: Ferguson IKC2. Something went BANG!

Now that you mention it, the set does have one of those rifa caps, you can just about see it under the red cover, i had forgotten, i changed this last year when i changed the Flyback (completely forgot) the old one had bust its guts and must have done so when in possession of the previous owner (bought the set on eBay in 2010) i had 1 of those caps from a cracked IKC2 board that i just swapped (Obviously not knowing the history of these type caps) and i guess thats what happened here, another old cap and the set was on and off a few times so i guess the fragile nature of those caps plus the thermal cycling did it in, next time i get a chance i'll pop that red cover off and have a look and see but it seems the most likely explanation is that rifa cap.
__________________
Cheers,
Luke
IKC2E51R8 is offline  
Old 20th Jul 2020, 11:53 am   #8
Welsh Anorak
Dekatron
 
Welsh Anorak's Avatar
 
Join Date: Apr 2005
Location: North Wales, UK.
Posts: 6,884
Default Re: Ferguson IKC2. Something went BANG!

CPC or RS stock reliable class X capacitors that won't give any further trouble.
__________________
Glyn
www.gdelectronics.wales
Welsh Anorak is online now  
Old 21st Jul 2020, 4:57 pm   #9
ekcopyephilips
Hexode
 
ekcopyephilips's Avatar
 
Join Date: Dec 2006
Location: Norwich, Norfolk, UK.
Posts: 440
Default Re: Ferguson IKC2. Something went BANG!

Failed posistor? Either a two or three legged device on the primary side of the power supply to power the degaussing coils at switch on, once it’s done it’s job it just sits there getting hot and cooks itself. When they fail they usually blow a fuse. If you take it out you’ll know if it’s had it if it sounds like a jar of instant coffee being shaken.
ekcopyephilips is offline  
Old 22nd Jul 2020, 2:10 am   #10
Refugee
Dekatron
 
Refugee's Avatar
 
Join Date: Apr 2012
Location: Worksop, Nottinghamshire, UK.
Posts: 5,549
Default Re: Ferguson IKC2. Something went BANG!

Those thermistors usually leave the mask magnetised when they go off.
Purity errors have not been reported this time ans also it was too smelly.
I am alsp pretty sure it was a RIFA.
Refugee is offline  
Old 22nd Jul 2020, 2:27 am   #11
IKC2E51R8
Hexode
 
Join Date: Aug 2018
Location: Dublin, Republic of Ireland.
Posts: 492
Default Re: Ferguson IKC2. Something went BANG!

Its not the positor anyway, it degaussed when i turned it back on after everything happened, its definatly the rifa cap, will pull it out on saturday when im off work, but i can tell you the smell from it was disgusting so it fits the description of a bad rifa
__________________
Cheers,
Luke
IKC2E51R8 is offline  
Old 22nd Jul 2020, 3:49 pm   #12
IKC2E51R8
Hexode
 
Join Date: Aug 2018
Location: Dublin, Republic of Ireland.
Posts: 492
Default Re: Ferguson IKC2. Something went BANG!

Quote:
Originally Posted by Refugee View Post
I have smelt one that went off in a vacuum cleaner. The motor keeps going and stirs the smoke up big time.
I didnt know whether to laugh or cry as rhe TV was merrily playing away the music video i had on while smoke was Pouring out of it
__________________
Cheers,
Luke
IKC2E51R8 is offline  
Old 22nd Jul 2020, 5:29 pm   #13
dj_fivos_sak
Heptode
 
Join Date: Mar 2015
Location: Lefkada, Greece
Posts: 969
Default Re: Ferguson IKC2. Something went BANG!

Yeah. Sounds like a typical RIFA cap failure. Very common problem on many electronic appliances indeed.
dj_fivos_sak is offline  
Old 22nd Jul 2020, 11:17 pm   #14
Michael Maurice
Moderator
 
Michael Maurice's Avatar
 
Join Date: Feb 2006
Location: Wembley, Middlesex
Posts: 7,219
Default Re: Ferguson IKC2. Something went BANG!

Check the mains switch, these gave a lot of trouble including the symptoms you have.
__________________
Forum Moderator

http://www.michaelmauricerepairs.co.uk/
Michael Maurice is offline  
Old 23rd Jul 2020, 9:56 am   #15
Welsh Anorak
Dekatron
 
Welsh Anorak's Avatar
 
Join Date: Apr 2005
Location: North Wales, UK.
Posts: 6,884
Default Re: Ferguson IKC2. Something went BANG!

Michael's right - these should have the larger white switch fitted as opposed to the small Lorlin one. They operate with a more positive 'click' than the originals.
__________________
Glyn
www.gdelectronics.wales
Welsh Anorak is online now  
Old 23rd Jul 2020, 6:56 pm   #16
Sideband
Dekatron
 
Sideband's Avatar
 
Join Date: Oct 2003
Location: Croydon, Surrey, UK.
Posts: 7,548
Default Re: Ferguson IKC2. Something went BANG!

Quote:
Originally Posted by Heatercathodeshort View Post
You don't know what a stink is! When you can smell a failed tripler in the porch of a customers house before you actually enter you will realize there is no comparison. Rotten eggs and sewage farms come to mind.. John.J.
...or the unmistakable smell of a selenium rectifier...very similar as we were walking up the garden path we were already checking that we had a BY100 in the spares case.....
__________________
There are lots of brilliant keyboard players and then there is Rick Wakeman.....
Sideband is offline  
Old 24th Jul 2020, 12:14 pm   #17
Welsh Anorak
Dekatron
 
Welsh Anorak's Avatar
 
Join Date: Apr 2005
Location: North Wales, UK.
Posts: 6,884
Default Re: Ferguson IKC2. Something went BANG!

...passing the very baffled cat who had been banished to the garden!
__________________
Glyn
www.gdelectronics.wales
Welsh Anorak is online now  
Old 25th Jul 2020, 1:25 pm   #18
IKC2E51R8
Hexode
 
Join Date: Aug 2018
Location: Dublin, Republic of Ireland.
Posts: 492
Default Re: Ferguson IKC2. Something went BANG!

Chief we found the culprit. Its a WIMA 0.1uf 275v , blew its guts out the side, board is gonna need some cleaning when i get around to replacing it at the end of the month
Attached Thumbnails
Click image for larger version

Name:	20200725_130514.jpg
Views:	136
Size:	59.0 KB
ID:	211766   Click image for larger version

Name:	20200725_130508.jpg
Views:	141
Size:	91.3 KB
ID:	211767  
__________________
Cheers,
Luke
IKC2E51R8 is offline  
Old 25th Jul 2020, 1:59 pm   #19
IKC2E51R8
Hexode
 
Join Date: Aug 2018
Location: Dublin, Republic of Ireland.
Posts: 492
Default Re: Ferguson IKC2. Something went BANG!

Crazy, how these ever made it to market i'll never know.
What should i be looking at replacing this with, there's NOS of them all over eBay but i dont wanna put another one of those disasters in my set
__________________
Cheers,
Luke
IKC2E51R8 is offline  
Old 25th Jul 2020, 3:39 pm   #20
Sideband
Dekatron
 
Sideband's Avatar
 
Join Date: Oct 2003
Location: Croydon, Surrey, UK.
Posts: 7,548
Default Re: Ferguson IKC2. Something went BANG!

Use a proper X class capacitor. 0.1uF 275V~ is a bog-standard value. RS or Farnell will have them and they will be approved types. In fact if you can get a 300V~ type in the space, go for that.
__________________
There are lots of brilliant keyboard players and then there is Rick Wakeman.....
Sideband is offline  
Closed Thread

Thread Tools



All times are GMT +1. The time now is 5:07 pm.


All information and advice on this forum is subject to the WARNING AND DISCLAIMER located at https://www.vintage-radio.net/rules.html.
Failure to heed this warning may result in death or serious injury to yourself and/or others.


Powered by vBulletin®
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Copyright ©2002 - 2023, Paul Stenning.