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Vintage Television and Video Vintage television and video equipment, programmes, VCRs etc. |
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16th Feb 2017, 11:11 pm | #1 |
Pentode
Join Date: Jul 2005
Location: London, UK.
Posts: 193
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Philips 20B 414 01
Hello,
I had a working TV however when slightly opening up the chassis while switched on, the fuse blew up. I tried replacing the fuse but it blows up again. It's an old Philips TV 20B 414 01. It has an old switched power supply with a BU326. I'm not sure what's causing the fuse to be upset. Would someone have a schematic for this set or have some similar schematic at least for the switched power supply. Is there also a trick i can use to limit the current of the set to avoid blowing too many fuses and is there a troubleshooting process to understand where the fault is? I've attached some photos. Thanks Thierry
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17th Feb 2017, 1:58 am | #2 |
Hexode
Join Date: Mar 2012
Location: Liverpool, Merseyside, UK.
Posts: 453
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Re: Philips 20B 414 01
Worth checking the bridge rectifier/diodes? Did anything earthed touch the chassis when you were hinging it down?
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17th Feb 2017, 12:12 pm | #3 |
Dekatron
Join Date: Dec 2007
Location: Haarlem, Netherlands
Posts: 4,203
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Re: Philips 20B 414 01
You could try looking for a schematic on French forums and sites, it's a French model.
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17th Feb 2017, 1:20 pm | #4 |
Octode
Join Date: Jan 2009
Location: Falmouth, Cornwall, UK.
Posts: 1,991
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Re: Philips 20B 414 01
Were you opening it because of a problem ?
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Stephen _________"It`s only an old telly" ___ |
18th Feb 2017, 9:05 pm | #5 |
Nonode
Join Date: Mar 2010
Location: Sunderland, Tyne and Wear, UK.
Posts: 2,476
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Re: Philips 20B 414 01
According to my data it uses the E1 O chassis, so that might help in your search for a similar diagram.
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19th Feb 2017, 4:43 am | #6 |
Dekatron
Join Date: Dec 2007
Location: Haarlem, Netherlands
Posts: 4,203
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Re: Philips 20B 414 01
Are you sure your data isn't about the 20B441 instead of 20B414?
In any case, this chassis looks nothing like the E1 which was basically a German/global design, not French. According to a French forum post, the 20B414 might have the H chassis. Looking for that turns up http://dede92dubois.free.fr/telenetb.htm where you can obtain the schematic if you mail the site owner. |
19th Feb 2017, 9:40 pm | #7 |
Nonode
Join Date: Mar 2010
Location: Sunderland, Tyne and Wear, UK.
Posts: 2,476
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Re: Philips 20B 414 01
Oops, yes that is exactly my mistake Maarten , indeed it is the 20B441 that is the E1-O chassis, dated from1973, which I cannot say I am familiar with the 'O' version of. That is what partly led to my mistake, well that and going number blind lol
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