IES PB4x problem
Posted 16 April 2012 - 11:41 AM
Posted 17 April 2012 - 05:28 AM
The last 2 suggestions can be dangerous (As you would be poking around inside the casing)
-Never used the product, but in general most small dimmers and dimmer bar's should have fuses somewhere to protect each channel.
Posted 17 April 2012 - 05:42 AM
Think these products are a bit different to your average "cheap" dimmer or dimmer bar, they're an ETC product. And he did say he replaced the channel fuse and still no go...
This dimmer bar uses IGBT dimming, similar to a triac, but slightly different way of switching the waveform. My bet is that this is the component that has gone. Occasionally the short circuit current [edit: the short circuit current when the lamp blows] can be so great that it takes out the IGBT/triac.
Might be a case of taking it to get serviced, probably not the best thing to do unless you're confident with mains level component servicing
Where in the world are you, perhaps someone can recommend a service agent.
http://www.etcconnec..._USERMANUAL.PDF - this is the one, right?
This post has been edited by david.elsbury: 17 April 2012 - 07:09 AM
AV technician & sound engineer
Auckland, New Zealand
"Technician like ninja... live in shadow... move in silence"
Posted 17 April 2012 - 07:49 AM
We have a lot of IES PM4-21X dimmers in our studio, as well as a PB4-X, and the dimming module is the same.
I've had a couple of instances where one of the channels had failed, and the power module (where the channel fuse is located; these can be removed individually from the back of the unit) needed sending to ETC for repair.
However, in all these instances, the LCD display indicated an error code 'd' on the channel in question (as per page 13 of the manual linked above).
It's a bit strange your unit is not showing any fault on the display.
ETC tech support would be best able to advise: http://www.etcconnect.com/contact.aspx