22-05-2019, 18:05
|
#1
|
Inactive
Join Date: Jun 2003
Location: London way
Age: 48
Services: Sarcasm
Posts: 8,376
|
Light sensitive relay
Can anyone identify the make/model of this relay? - looks like the one controlling my porch lights has died - if I get one the same, then swapping out should be easy, if it's different, it's harder
TIA
|
|
|
22-05-2019, 19:31
|
#2
|
cf.mega poster
Join Date: Jun 2003
Location: Kairdiff-by-the-sea
Age: 68
Services: TVXL BBXL Superhub 2ac (wired) 1Tb Tivo
Posts: 9,812
|
Re: Light sensitive relay
Judging by the amount of crud in there, I'd give it a blow out all the fluff off the LDR first (the round thing with a squiggly line across it).
If gunk (insects etc.) got in there, I suspect moisture will have too. That would kill it.
|
|
|
22-05-2019, 19:36
|
#3
|
Inactive
Join Date: Jun 2003
Location: London way
Age: 48
Services: Sarcasm
Posts: 8,376
|
Re: Light sensitive relay
Quote:
Originally Posted by Taf
Judging by the amount of crud in there, I'd give it a blow out all the fluff off the LDR first (the round thing with a squiggly line across it).
If gunk (insects etc.) got in there, I suspect moisture will have too. That would kill it.
|
There was a fair bit of water in there, and it was making a buzzing noise, so I think it's dead - will know for sure tonight, when it gets dark
|
|
|
22-05-2019, 21:04
|
#4
|
81-82-83-84
Join Date: Nov 2006
Location: on holiday by mistake
Age: 54
Services: Vivid 200, Full House, V6 x2
Posts: 5,977
|
Re: Light sensitive relay
This is the part
https://uk.rs-online.com/web/p/non-l...elays/6804094/
Good luck for nothing else being dead on that funky board!
|
|
|
22-05-2019, 21:47
|
#5
|
Inactive
Join Date: Jun 2003
Location: London way
Age: 48
Services: Sarcasm
Posts: 8,376
|
Re: Light sensitive relay
Quote:
Originally Posted by Uncle Peter
|
Thanks - sorry though - I meant the whole board is fried not just the relay bit. I need a whole new board.
|
|
|
23-05-2019, 11:09
|
#6
|
Inactive
Join Date: Jun 2003
Location: London way
Age: 48
Services: Sarcasm
Posts: 8,376
|
Re: Light sensitive relay
|
|
|
23-05-2019, 11:19
|
#7
|
81-82-83-84
Join Date: Nov 2006
Location: on holiday by mistake
Age: 54
Services: Vivid 200, Full House, V6 x2
Posts: 5,977
|
Re: Light sensitive relay
Not bothered fixing up the existing board? There's less than a fiver worth of components on there.
Replace the trigger IC, relay, that box pulse cap, the electrolytics and the photo resistor and clean it all up I reckon that should sort it.
|
|
|
23-05-2019, 17:49
|
#8
|
Perfect Soldier
Join Date: Mar 2009
Location: Worthing West Sussex
Age: 66
Services: VM 500M SH3 thingy
in modem mode
XL TV V6 Sony Bravia smart TV and M phone
Posts: 10,994
|
Re: Light sensitive relay
In my experience if damp has compromised the PCB then changing the components is unlikely to fix it. I tried with a motion sensor lamp control and it never really worked properly.
Fiberglass PCBs are better but still no guarantees.
__________________
History is much like an endless waltz: The three beats of war, peace and revolution continue on forever.
However history will change with my coronation - Mariemaia Khushrenada
|
|
|
23-05-2019, 18:07
|
#9
|
cf.mega poster
Join Date: Jun 2003
Location: Kairdiff-by-the-sea
Age: 68
Services: TVXL BBXL Superhub 2ac (wired) 1Tb Tivo
Posts: 9,812
|
Re: Light sensitive relay
One of my jobs in The RAF was to clean circuit boards, with all their components fitted, in a sonic bath, Then dry them slowly in a huge oven. Not one failed to work afterwards, but that was pre-integrated circuits days.
|
|
|
23-05-2019, 18:41
|
#10
|
Perfect Soldier
Join Date: Mar 2009
Location: Worthing West Sussex
Age: 66
Services: VM 500M SH3 thingy
in modem mode
XL TV V6 Sony Bravia smart TV and M phone
Posts: 10,994
|
Re: Light sensitive relay
It can be successful if the PCB is not compromised. (Charred or corroded) I remember a temperature controller (1/4 DIN) that had "fallen" in a vat of glucose. The service engineer washed the bare PCBs in a bath of detergent and then Arklone and finally dried out in an low temperature oven. It worked afterwards.
__________________
History is much like an endless waltz: The three beats of war, peace and revolution continue on forever.
However history will change with my coronation - Mariemaia Khushrenada
|
|
|
23-05-2019, 18:49
|
#11
|
Inactive
Join Date: Jun 2003
Location: London way
Age: 48
Services: Sarcasm
Posts: 8,376
|
Re: Light sensitive relay
Hmm... not really sure I have the time, patience or tools to do all of the things mentioned - I think I'll just replace it with a like for like component
Thanks all!
|
|
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
All times are GMT +1. The time now is 09:55.
|