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Pulsar chaser..

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pscstudio54 View Drop Down
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    Posted: 04 February 2021 at 12:55pm
Hello,does anybody repair pulsar ten way chasers! I know it's old, like myself, but it has worked ok for forty two years . It Will no longer light all channels or chase much ,like myself...cheers.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote service dept Steve Quote  Post ReplyReply Direct Link To This Post Posted: 04 February 2021 at 2:23pm
It's been a long time since I looked at lighting controllers but if my memory serves me correctly the programme was held in a volitile memory which was maintained by a nicad battery, when the battery fails it leaks on the pcb and also corrupts or clears the programme from the unit.
Hopefully I have remembered that incorrectly because it means your unit is land fill if I have.
An actual expert will be along in a bit...
We are not "They", We are "The others"http://www.servicedept.co.uk -
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Post Options Post Options   Thanks (0) Thanks(0)   Quote imageoven Quote  Post ReplyReply Direct Link To This Post Posted: 04 February 2021 at 2:41pm
Originally posted by pscstudio54 pscstudio54 wrote:

. It Will no longer light all channels or chase much


Could it just be blown Triacs on some of the channels? these are the components that turn the power on and off, if they are overloaded they get fried. They are usually an easy fix if this is the case.


Keep pushing on, things are gonna get better.
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GAZ. View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote GAZ. Quote  Post ReplyReply Direct Link To This Post Posted: 04 February 2021 at 3:19pm
Where are you based?
100% Earth Moving Bass
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pscstudio54 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote pscstudio54 Quote  Post ReplyReply Direct Link To This Post Posted: 04 February 2021 at 3:20pm
I was wondering about the triacs on the missing channels as in my other ancient chaser ,a old njd sc4000 which was used for light screens but it all ways seemed that when that went wrong the channel would stay on all the time but the leds on the front panel would still sequence. I know this is a different make and a bit more complex but it doesn't want to chase and three channels don't go at all.this has been used for just one pin spot per channel forever so I don't think it was overloaded.I fear what Steve says will be truth.one weird thing though is if you put it on reverse mode with pairs pattern the leds light up on the front!!? Thanks people anyway...just wanted to get my money's worth our of it!
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pscstudio54 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote pscstudio54 Quote  Post ReplyReply Direct Link To This Post Posted: 04 February 2021 at 3:22pm
Sorry gaz just missed your post....bridgwater ,Somerset.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote GAZ. Quote  Post ReplyReply Direct Link To This Post Posted: 04 February 2021 at 3:30pm
Ah you’re a way away from me, otherwise I could have looked at it for you. It’s done well to last as long as it has, and the likelihood is many of the components inside will be well past it due to age. However without seeing it is anybody’s guess
100% Earth Moving Bass
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pscstudio54 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote pscstudio54 Quote  Post ReplyReply Direct Link To This Post Posted: 04 February 2021 at 3:38pm
Yes I think your right .I wonder if there's a new Chinese copy that will last as long.....thanks.
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charlynch View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote charlynch Quote  Post ReplyReply Direct Link To This Post Posted: 04 February 2021 at 4:09pm
It might be worth having a chat with Nev of Zen Audio Works in Taunton to see if he can have a look at it for you. 
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pscstudio54 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote pscstudio54 Quote  Post ReplyReply Direct Link To This Post Posted: 04 February 2021 at 4:57pm
I will look into that. Actually after just looking inside the unit I really can't see anything obvious at all ,no burn marks or the like and it is spotless inside ,no tumbleweed of dust anywhere....thanks for the heads up.Thumbs Up
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Post Options Post Options   Thanks (0) Thanks(0)   Quote colint Quote  Post ReplyReply Direct Link To This Post Posted: 04 February 2021 at 5:02pm
Malcom Barnes is your man he's specialist in vintage Dj equipment you can find him here but he is also a member of SP but I can't remember his user name 
Never criticise another man until you've walked a mile in his shoes. Once you have, call him what you like, you're a mile away and you've got his shoes!
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pscstudio54 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote pscstudio54 Quote  Post ReplyReply Direct Link To This Post Posted: 04 February 2021 at 5:26pm
Thanks for the info....terrific stuff eveyoneClap
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