Broken Lighting Desk

AS you may (probably not) have noticed, I have not been into the space
recently. The reason for this as you may (probably not) know is mainly due
to the school production occurring, and me rigging the stage lights /
programming the lighting desk. The school’s productions are
remarkably professional for a school, and as such there is a lot of this
kind of work to do. Today I finished the last bits of tweaking the
programming (programming meaning setting up combinations of lights on a
controller desk, not coding), and all is was going remarkably well. Until,
a few seconds after I finished, the desk completely died. The dress
rehearsal is tomorrow so I have about 4 hours to fix it :frowning: I am asking
for any general advice on what may or may not be the problem here.

Ok, a bit of brief history about the problem.

  1. About a week ago, the desk started crashing more than usual (locking up,
    requiring reboot, screen still active but frozen, and LEDs on but again
    frozen)
  2. Avolites (the company that makes it) said that this was a common
    problem, and that you should remove the graphics card to fix it.
  3. The graphics card is a PC graphics card, for connecting to an external
    monitor if required,
  4. We removed it and the problem went away - I noticed that the desk uses a
    bog-standard ATX supply
  5. Tonight we had the technical rehearsal, all went well
  6. After the rehearsal, doing a bit of tweaking without the director, the
    DMX output cut out (essentially as though disconnected) - a reboot fixed
    this
  7. Doing some tweaking with the director, all was going well.
  8. Tweaked the last scene - all working
  9. Looked up to ask director if happy with scene
  10. Looked down - desk gone to shit

And what does “gone to shit” actually mean in this case

  1. Desk screen (not external monitor, one of those white and purple ones)
    blank
  2. LEDs frozen, but significantly dimmer than normal
  3. There is a plug in lamp that fixes to the top of the desk, which shines
    light onto the desk, so the operator can see what he is doing. - this went
    slightly dimmer
  4. I turned the desk off, waited a few seconds, then turned it on.
  5. Screen still blank - DMX as though disconnected - nothing responsive -
    all LED indicator lights off

The lamp has a switch, with Dim, Off and Full (in that order)
When on dim, the screen backlight was at its dimmest
When off, the screen backlight was a bit brighter
When on full, the screen backlight was noticeably brighter

Apparently, there are a number of internal fuses, one of which is on the
DMX output line.

What I intend to do tomorrow

  1. See if the fairies have magically fixed it in the night
  2. Check Fuses
  3. Probe the power supply / swap it out for another
  4. Look for shorts
  5. Look for bad caps

The technical officer from a rental agency called HSL is coming in tomorrow
(with a replacement desk to rent) to have a look at it as well
It is highly unlikely he will fix it (not that kind of technical officer).

We need to get the desk working for about 10 mins so we can copy the show
onto a floppy (yes, its that old) and transfer it onto a good desk.

The desk is an Avolites Pearl 2000

The dress rehearsal is tomorrow night, the public one the day after.
I have 2 one-hour windows tomorrow during the school day, and about an hour
the day after.

Thanks in advance for any help :smiley:

George

Hi George,

Sounds very much like a dodgy supply to me. That’s quite an old unit. I
notice there is a 2011 dated firmware update available for that unit too.
Might be worth changing the supply and updating the firmware.

Jon WilsonOn 25 November 2012 22:05, DaShroom66 dashroom66@gmail.com wrote:

AS you may (probably not) have noticed, I have not been into the space
recently. The reason for this as you may (probably not) know is mainly due
to the school production occurring, and me rigging the stage lights /
programming the lighting desk. The school’s productions are
remarkably professional for a school, and as such there is a lot of this
kind of work to do. Today I finished the last bits of tweaking the
programming (programming meaning setting up combinations of lights on a
controller desk, not coding), and all is was going remarkably well. Until,
a few seconds after I finished, the desk completely died. The dress
rehearsal is tomorrow so I have about 4 hours to fix it :frowning: I am asking
for any general advice on what may or may not be the problem here.

Ok, a bit of brief history about the problem.

  1. About a week ago, the desk started crashing more than usual (locking
    up, requiring reboot, screen still active but frozen, and LEDs on but again
    frozen)
  2. Avolites (the company that makes it) said that this was a common
    problem, and that you should remove the graphics card to fix it.
  3. The graphics card is a PC graphics card, for connecting to an external
    monitor if required,
  4. We removed it and the problem went away - I noticed that the desk uses
    a bog-standard ATX supply
  5. Tonight we had the technical rehearsal, all went well
  6. After the rehearsal, doing a bit of tweaking without the director, the
    DMX output cut out (essentially as though disconnected) - a reboot fixed
    this
  7. Doing some tweaking with the director, all was going well.
  8. Tweaked the last scene - all working
  9. Looked up to ask director if happy with scene
  10. Looked down - desk gone to shit

And what does “gone to shit” actually mean in this case

  1. Desk screen (not external monitor, one of those white and purple ones)
    blank
  2. LEDs frozen, but significantly dimmer than normal
  3. There is a plug in lamp that fixes to the top of the desk, which shines
    light onto the desk, so the operator can see what he is doing. - this went
    slightly dimmer
  4. I turned the desk off, waited a few seconds, then turned it on.
  5. Screen still blank - DMX as though disconnected - nothing responsive -
    all LED indicator lights off

The lamp has a switch, with Dim, Off and Full (in that order)
When on dim, the screen backlight was at its dimmest
When off, the screen backlight was a bit brighter
When on full, the screen backlight was noticeably brighter

Apparently, there are a number of internal fuses, one of which is on the
DMX output line.

What I intend to do tomorrow

  1. See if the fairies have magically fixed it in the night
  2. Check Fuses
  3. Probe the power supply / swap it out for another
  4. Look for shorts
  5. Look for bad caps

The technical officer from a rental agency called HSL is coming in
tomorrow (with a replacement desk to rent) to have a look at it as well
It is highly unlikely he will fix it (not that kind of technical officer).

We need to get the desk working for about 10 mins so we can copy the show
onto a floppy (yes, its that old) and transfer it onto a good desk.

The desk is an Avolites Pearl 2000

The dress rehearsal is tomorrow night, the public one the day after.
I have 2 one-hour windows tomorrow during the school day, and about an
hour the day after.

Thanks in advance for any help :smiley:

George


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Yeah, I’m going to try that, though I can’t update the firmware until it is
functional :frowning:

Thanks,
GeorgeOn 25 November 2012 22:28, Jon Wilson fast21@gmail.com wrote:

Sounds very much like a dodgy supply to me. That’s quite an old unit. I
notice there is a 2011 dated firmware update available for that unit too.
Might be worth changing the supply and updating the firmware.

Also thinking if it is a bad supply then it’s likely it has taken a few
caps with it too…On 25 November 2012 22:28, Jon Wilson fast21@gmail.com wrote:

Hi George,

Sounds very much like a dodgy supply to me. That’s quite an old unit. I
notice there is a 2011 dated firmware update available for that unit too.
Might be worth changing the supply and updating the firmware.

Jon Wilson

On 25 November 2012 22:05, DaShroom66 dashroom66@gmail.com wrote:

AS you may (probably not) have noticed, I have not been into the space
recently. The reason for this as you may (probably not) know is mainly due
to the school production occurring, and me rigging the stage lights /
programming the lighting desk. The school’s productions are
remarkably professional for a school, and as such there is a lot of this
kind of work to do. Today I finished the last bits of tweaking the
programming (programming meaning setting up combinations of lights on a
controller desk, not coding), and all is was going remarkably well. Until,
a few seconds after I finished, the desk completely died. The dress
rehearsal is tomorrow so I have about 4 hours to fix it :frowning: I am asking
for any general advice on what may or may not be the problem here.

Ok, a bit of brief history about the problem.

  1. About a week ago, the desk started crashing more than usual (locking
    up, requiring reboot, screen still active but frozen, and LEDs on but again
    frozen)
  2. Avolites (the company that makes it) said that this was a common
    problem, and that you should remove the graphics card to fix it.
  3. The graphics card is a PC graphics card, for connecting to an external
    monitor if required,
  4. We removed it and the problem went away - I noticed that the desk uses
    a bog-standard ATX supply
  5. Tonight we had the technical rehearsal, all went well
  6. After the rehearsal, doing a bit of tweaking without the director, the
    DMX output cut out (essentially as though disconnected) - a reboot fixed
    this
  7. Doing some tweaking with the director, all was going well.
  8. Tweaked the last scene - all working
  9. Looked up to ask director if happy with scene
  10. Looked down - desk gone to shit

And what does “gone to shit” actually mean in this case

  1. Desk screen (not external monitor, one of those white and purple ones)
    blank
  2. LEDs frozen, but significantly dimmer than normal
  3. There is a plug in lamp that fixes to the top of the desk, which
    shines light onto the desk, so the operator can see what he is doing. -
    this went slightly dimmer
  4. I turned the desk off, waited a few seconds, then turned it on.
  5. Screen still blank - DMX as though disconnected - nothing responsive -
    all LED indicator lights off

The lamp has a switch, with Dim, Off and Full (in that order)
When on dim, the screen backlight was at its dimmest
When off, the screen backlight was a bit brighter
When on full, the screen backlight was noticeably brighter

Apparently, there are a number of internal fuses, one of which is on the
DMX output line.

What I intend to do tomorrow

  1. See if the fairies have magically fixed it in the night
  2. Check Fuses
  3. Probe the power supply / swap it out for another
  4. Look for shorts
  5. Look for bad caps

The technical officer from a rental agency called HSL is coming in
tomorrow (with a replacement desk to rent) to have a look at it as well
It is highly unlikely he will fix it (not that kind of technical officer).

We need to get the desk working for about 10 mins so we can copy the show
onto a floppy (yes, its that old) and transfer it onto a good desk.

The desk is an Avolites Pearl 2000

The dress rehearsal is tomorrow night, the public one the day after.
I have 2 one-hour windows tomorrow during the school day, and about an
hour the day after.

Thanks in advance for any help :smiley:

George


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Days I wish I had an ESR meter… :-)On 25 November 2012 22:32, Jon Wilson fast21@gmail.com wrote:

Also thinking if it is a bad supply then it’s likely it has taken a few
caps with it too…

On 25 November 2012 22:28, Jon Wilson fast21@gmail.com wrote:

Hi George,

Sounds very much like a dodgy supply to me. That’s quite an old unit. I
notice there is a 2011 dated firmware update available for that unit too.
Might be worth changing the supply and updating the firmware.

Jon Wilson

On 25 November 2012 22:05, DaShroom66 dashroom66@gmail.com wrote:

AS you may (probably not) have noticed, I have not been into the space
recently. The reason for this as you may (probably not) know is mainly due
to the school production occurring, and me rigging the stage lights /
programming the lighting desk. The school’s productions are
remarkably professional for a school, and as such there is a lot of this
kind of work to do. Today I finished the last bits of tweaking the
programming (programming meaning setting up combinations of lights on a
controller desk, not coding), and all is was going remarkably well. Until,
a few seconds after I finished, the desk completely died. The dress
rehearsal is tomorrow so I have about 4 hours to fix it :frowning: I am asking
for any general advice on what may or may not be the problem here.

Ok, a bit of brief history about the problem.

  1. About a week ago, the desk started crashing more than usual (locking
    up, requiring reboot, screen still active but frozen, and LEDs on but again
    frozen)
  2. Avolites (the company that makes it) said that this was a common
    problem, and that you should remove the graphics card to fix it.
  3. The graphics card is a PC graphics card, for connecting to an
    external monitor if required,
  4. We removed it and the problem went away - I noticed that the desk
    uses a bog-standard ATX supply
  5. Tonight we had the technical rehearsal, all went well
  6. After the rehearsal, doing a bit of tweaking without the director,
    the DMX output cut out (essentially as though disconnected) - a reboot
    fixed this
  7. Doing some tweaking with the director, all was going well.
  8. Tweaked the last scene - all working
  9. Looked up to ask director if happy with scene
  10. Looked down - desk gone to shit

And what does “gone to shit” actually mean in this case

  1. Desk screen (not external monitor, one of those white and purple
    ones) blank
  2. LEDs frozen, but significantly dimmer than normal
  3. There is a plug in lamp that fixes to the top of the desk, which
    shines light onto the desk, so the operator can see what he is doing. -
    this went slightly dimmer
  4. I turned the desk off, waited a few seconds, then turned it on.
  5. Screen still blank - DMX as though disconnected - nothing responsive
  • all LED indicator lights off

The lamp has a switch, with Dim, Off and Full (in that order)
When on dim, the screen backlight was at its dimmest
When off, the screen backlight was a bit brighter
When on full, the screen backlight was noticeably brighter

Apparently, there are a number of internal fuses, one of which is on the
DMX output line.

What I intend to do tomorrow

  1. See if the fairies have magically fixed it in the night
  2. Check Fuses
  3. Probe the power supply / swap it out for another
  4. Look for shorts
  5. Look for bad caps

The technical officer from a rental agency called HSL is coming in
tomorrow (with a replacement desk to rent) to have a look at it as well
It is highly unlikely he will fix it (not that kind of technical
officer).

We need to get the desk working for about 10 mins so we can copy the
show onto a floppy (yes, its that old) and transfer it onto a good desk.

The desk is an Avolites Pearl 2000

The dress rehearsal is tomorrow night, the public one the day after.
I have 2 one-hour windows tomorrow during the school day, and about an
hour the day after.

Thanks in advance for any help :smiley:

George


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usually bad caps are quite easy to spot, they’ll have either bulged or
leaked.On 25 November 2012 22:44, George Ainscough dashroom66@gmail.com wrote:

Days I wish I had an ESR meter… :slight_smile:

On 25 November 2012 22:32, Jon Wilson fast21@gmail.com wrote:

Also thinking if it is a bad supply then it’s likely it has taken a few
caps with it too…

On 25 November 2012 22:28, Jon Wilson fast21@gmail.com wrote:

Hi George,

Sounds very much like a dodgy supply to me. That’s quite an old unit. I
notice there is a 2011 dated firmware update available for that unit too.
Might be worth changing the supply and updating the firmware.

Jon Wilson

On 25 November 2012 22:05, DaShroom66 dashroom66@gmail.com wrote:

AS you may (probably not) have noticed, I have not been into the space
recently. The reason for this as you may (probably not) know is mainly due
to the school production occurring, and me rigging the stage lights /
programming the lighting desk. The school’s productions are
remarkably professional for a school, and as such there is a lot of this
kind of work to do. Today I finished the last bits of tweaking the
programming (programming meaning setting up combinations of lights on a
controller desk, not coding), and all is was going remarkably well. Until,
a few seconds after I finished, the desk completely died. The dress
rehearsal is tomorrow so I have about 4 hours to fix it :frowning: I am asking
for any general advice on what may or may not be the problem here.

Ok, a bit of brief history about the problem.

  1. About a week ago, the desk started crashing more than usual (locking
    up, requiring reboot, screen still active but frozen, and LEDs on but again
    frozen)
  2. Avolites (the company that makes it) said that this was a common
    problem, and that you should remove the graphics card to fix it.
  3. The graphics card is a PC graphics card, for connecting to an
    external monitor if required,
  4. We removed it and the problem went away - I noticed that the desk
    uses a bog-standard ATX supply
  5. Tonight we had the technical rehearsal, all went well
  6. After the rehearsal, doing a bit of tweaking without the director,
    the DMX output cut out (essentially as though disconnected) - a reboot
    fixed this
  7. Doing some tweaking with the director, all was going well.
  8. Tweaked the last scene - all working
  9. Looked up to ask director if happy with scene
  10. Looked down - desk gone to shit

And what does “gone to shit” actually mean in this case

  1. Desk screen (not external monitor, one of those white and purple
    ones) blank
  2. LEDs frozen, but significantly dimmer than normal
  3. There is a plug in lamp that fixes to the top of the desk, which
    shines light onto the desk, so the operator can see what he is doing. -
    this went slightly dimmer
  4. I turned the desk off, waited a few seconds, then turned it on.
  5. Screen still blank - DMX as though disconnected - nothing responsive
  • all LED indicator lights off

The lamp has a switch, with Dim, Off and Full (in that order)
When on dim, the screen backlight was at its dimmest
When off, the screen backlight was a bit brighter
When on full, the screen backlight was noticeably brighter

Apparently, there are a number of internal fuses, one of which is on
the DMX output line.

What I intend to do tomorrow

  1. See if the fairies have magically fixed it in the night
  2. Check Fuses
  3. Probe the power supply / swap it out for another
  4. Look for shorts
  5. Look for bad caps

The technical officer from a rental agency called HSL is coming in
tomorrow (with a replacement desk to rent) to have a look at it as well
It is highly unlikely he will fix it (not that kind of technical
officer).

We need to get the desk working for about 10 mins so we can copy the
show onto a floppy (yes, its that old) and transfer it onto a good desk.

The desk is an Avolites Pearl 2000

The dress rehearsal is tomorrow night, the public one the day after.
I have 2 one-hour windows tomorrow during the school day, and about an
hour the day after.

Thanks in advance for any help :smiley:

George


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Ben Dooks, http://www.fluff.org/ben/ bjdooks@googlemail.com

Yeah, though I’ve done lots of these where I’ve replaced those ones, then
it still doesn’t work, then I’ve had to go through them with an ESR meter,
and then go back and order more, pissing me of SOOOO much. Don’t have time
for 2 orders :slight_smile:

Hope they are all visibly crap :slight_smile:

Thanks,
GeorgeOn 25 November 2012 22:46, Ben Dooks bjdooks@googlemail.com wrote:

usually bad caps are quite easy to spot, they’ll have either bulged or
leaked.

On 25 November 2012 22:44, George Ainscough dashroom66@gmail.com wrote:

Days I wish I had an ESR meter… :slight_smile:

On 25 November 2012 22:32, Jon Wilson fast21@gmail.com wrote:

Also thinking if it is a bad supply then it’s likely it has taken a few
caps with it too…

On 25 November 2012 22:28, Jon Wilson fast21@gmail.com wrote:

Hi George,

Sounds very much like a dodgy supply to me. That’s quite an old unit. I
notice there is a 2011 dated firmware update available for that unit too.
Might be worth changing the supply and updating the firmware.

Jon Wilson

On 25 November 2012 22:05, DaShroom66 dashroom66@gmail.com wrote:

AS you may (probably not) have noticed, I have not been into the space
recently. The reason for this as you may (probably not) know is mainly due
to the school production occurring, and me rigging the stage lights /
programming the lighting desk. The school’s productions are
remarkably professional for a school, and as such there is a lot of this
kind of work to do. Today I finished the last bits of tweaking the
programming (programming meaning setting up combinations of lights on a
controller desk, not coding), and all is was going remarkably well. Until,
a few seconds after I finished, the desk completely died. The dress
rehearsal is tomorrow so I have about 4 hours to fix it :frowning: I am asking
for any general advice on what may or may not be the problem here.

Ok, a bit of brief history about the problem.

  1. About a week ago, the desk started crashing more than usual
    (locking up, requiring reboot, screen still active but frozen, and LEDs on
    but again frozen)
  2. Avolites (the company that makes it) said that this was a common
    problem, and that you should remove the graphics card to fix it.
  3. The graphics card is a PC graphics card, for connecting to an
    external monitor if required,
  4. We removed it and the problem went away - I noticed that the desk
    uses a bog-standard ATX supply
  5. Tonight we had the technical rehearsal, all went well
  6. After the rehearsal, doing a bit of tweaking without the director,
    the DMX output cut out (essentially as though disconnected) - a reboot
    fixed this
  7. Doing some tweaking with the director, all was going well.
  8. Tweaked the last scene - all working
  9. Looked up to ask director if happy with scene
  10. Looked down - desk gone to shit

And what does “gone to shit” actually mean in this case

  1. Desk screen (not external monitor, one of those white and purple
    ones) blank
  2. LEDs frozen, but significantly dimmer than normal
  3. There is a plug in lamp that fixes to the top of the desk, which
    shines light onto the desk, so the operator can see what he is doing. -
    this went slightly dimmer
  4. I turned the desk off, waited a few seconds, then turned it on.
  5. Screen still blank - DMX as
    though disconnected - nothing responsive - all LED indicator lights off

The lamp has a switch, with Dim, Off and Full (in that order)
When on dim, the screen backlight was at its dimmest
When off, the screen backlight was a bit brighter
When on full, the screen backlight was noticeably brighter

Apparently, there are a number of internal fuses, one of which is on
the DMX output line.

What I intend to do tomorrow

  1. See if the fairies have magically fixed it in the night
  2. Check Fuses
  3. Probe the power supply / swap it out for another
  4. Look for shorts
  5. Look for bad caps

The technical officer from a rental agency called HSL is coming in
tomorrow (with a replacement desk to rent) to have a look at it as well
It is highly unlikely he will fix it (not that kind of technical
officer).

We need to get the desk working for about 10 mins so we can copy the
show onto a floppy (yes, its that old) and transfer it onto a good desk.

The desk is an Avolites Pearl 2000

The dress rehearsal is tomorrow night, the public one the day after.
I have 2 one-hour windows tomorrow during the school day, and about an
hour the day after.

Thanks in advance for any help :smiley:

George


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Ben Dooks, http://www.fluff.org/ben/ bjdooks@googlemail.com


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All fixed.

New power supply, some bodge wires, resistors and caps, and it is good as
new.

Thanks for the help :smiley:

GeorgeOn 25 November 2012 22:51, George Ainscough dashroom66@gmail.com wrote:

Yeah, though I’ve done lots of these where I’ve replaced those ones, then
it still doesn’t work, then I’ve had to go through them with an ESR meter,
and then go back and order more, pissing me of SOOOO much. Don’t have time
for 2 orders :slight_smile:

Hope they are all visibly crap :slight_smile:

Thanks,
George

On 25 November 2012 22:46, Ben Dooks bjdooks@googlemail.com wrote:

usually bad caps are quite easy to spot, they’ll have either bulged or
leaked.

On 25 November 2012 22:44, George Ainscough dashroom66@gmail.com wrote:

Days I wish I had an ESR meter… :slight_smile:

On 25 November 2012 22:32, Jon Wilson fast21@gmail.com wrote:

Also thinking if it is a bad supply then it’s likely it has taken a few
caps with it too…

On 25 November 2012 22:28, Jon Wilson fast21@gmail.com wrote:

Hi George,

Sounds very much like a dodgy supply to me. That’s quite an old unit.
I notice there is a 2011 dated firmware update available for that unit too.
Might be worth changing the supply and updating the firmware.

Jon Wilson

On 25 November 2012 22:05, DaShroom66 dashroom66@gmail.com wrote:

AS you may (probably not) have noticed, I have not been into the
space recently. The reason for this as you may (probably not) know is
mainly due to the school production occurring, and me rigging the stage
lights / programming the lighting desk. The school’s productions are
remarkably professional for a school, and as such there is a lot of this
kind of work to do. Today I finished the last bits of tweaking the
programming (programming meaning setting up combinations of lights on a
controller desk, not coding), and all is was going remarkably well. Until,
a few seconds after I finished, the desk completely died. The dress
rehearsal is tomorrow so I have about 4 hours to fix it :frowning: I am asking
for any general advice on what may or may not be the problem here.

Ok, a bit of brief history about the problem.

  1. About a week ago, the desk started crashing more than usual
    (locking up, requiring reboot, screen still active but frozen, and LEDs on
    but again frozen)
  2. Avolites (the company that makes it) said that this was a common
    problem, and that you should remove the graphics card to fix it.
  3. The graphics card is a PC graphics card, for connecting to an
    external monitor if required,
  4. We removed it and the problem went away - I noticed that the desk
    uses a bog-standard ATX supply
  5. Tonight we had the technical rehearsal, all went well
  6. After the rehearsal, doing a bit of tweaking without the director,
    the DMX output cut out (essentially as though disconnected) - a reboot
    fixed this
  7. Doing some tweaking with the director, all was going well.
  8. Tweaked the last scene - all working
  9. Looked up to ask director if happy with scene
  10. Looked down - desk gone to shit

And what does “gone to shit” actually mean in this case

  1. Desk screen (not external monitor, one of those white and purple
    ones) blank
  2. LEDs frozen, but significantly dimmer than normal
  3. There is a plug in lamp that fixes to the top of the desk, which
    shines light onto the desk, so the operator can see what he is doing. -
    this went slightly dimmer
  4. I turned the desk off, waited a few seconds, then turned it on.
  5. Screen still blank - DMX as
    though disconnected - nothing responsive - all LED indicator lights off

The lamp has a switch, with Dim, Off and Full (in that order)
When on dim, the screen backlight was at its dimmest
When off, the screen backlight was a bit brighter
When on full, the screen backlight was noticeably brighter

Apparently, there are a number of internal fuses, one of which is on
the DMX output line.

What I intend to do tomorrow

  1. See if the fairies have magically fixed it in the night
  2. Check Fuses
  3. Probe the power supply / swap it out for another
  4. Look for shorts
  5. Look for bad caps

The technical officer from a rental agency called HSL is coming in
tomorrow (with a replacement desk to rent) to have a look at it as well
It is highly unlikely he will fix it (not that kind of technical
officer).

We need to get the desk working for about 10 mins so we can copy the
show onto a floppy (yes, its that old) and transfer it onto a good desk.

The desk is an Avolites Pearl 2000

The dress rehearsal is tomorrow night, the public one the day after.
I have 2 one-hour windows tomorrow during the school day, and about
an hour the day after.

Thanks in advance for any help :smiley:

George


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Ben Dooks, http://www.fluff.org/ben/ bjdooks@googlemail.com


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Good to hear. :slight_smile:

Did you stick the firmware update on it? Or was it already up to date.

Jon WOn 26 November 2012 23:24, George Ainscough dashroom66@gmail.com wrote:

All fixed.

New power supply, some bodge wires, resistors and caps, and it is good as
new.

Thanks for the help :smiley:

George

On 25 November 2012 22:51, George Ainscough dashroom66@gmail.com wrote:

Yeah, though I’ve done lots of these where I’ve replaced those ones, then
it still doesn’t work, then I’ve had to go through them with an ESR meter,
and then go back and order more, pissing me of SOOOO much. Don’t have time
for 2 orders :slight_smile:

Hope they are all visibly crap :slight_smile:

Thanks,
George

On 25 November 2012 22:46, Ben Dooks bjdooks@googlemail.com wrote:

usually bad caps are quite easy to spot, they’ll have either bulged or
leaked.

On 25 November 2012 22:44, George Ainscough dashroom66@gmail.comwrote:

Days I wish I had an ESR meter… :slight_smile:

On 25 November 2012 22:32, Jon Wilson fast21@gmail.com wrote:

Also thinking if it is a bad supply then it’s likely it has taken a
few caps with it too…

On 25 November 2012 22:28, Jon Wilson fast21@gmail.com wrote:

Hi George,

Sounds very much like a dodgy supply to me. That’s quite an old unit.
I notice there is a 2011 dated firmware update available for that unit too.
Might be worth changing the supply and updating the firmware.

Jon Wilson

On 25 November 2012 22:05, DaShroom66 dashroom66@gmail.com wrote:

AS you may (probably not) have noticed, I have not been into the
space recently. The reason for this as you may (probably not) know is
mainly due to the school production occurring, and me rigging the stage
lights / programming the lighting desk. The school’s productions are
remarkably professional for a school, and as such there is a lot of this
kind of work to do. Today I finished the last bits of tweaking the
programming (programming meaning setting up combinations of lights on a
controller desk, not coding), and all is was going remarkably well. Until,
a few seconds after I finished, the desk completely died. The dress
rehearsal is tomorrow so I have about 4 hours to fix it :frowning: I am asking
for any general advice on what may or may not be the problem here.

Ok, a bit of brief history about the problem.

  1. About a week ago, the desk started crashing more than usual
    (locking up, requiring reboot, screen still active but frozen, and LEDs on
    but again frozen)
  2. Avolites (the company that makes it) said that this was a common
    problem, and that you should remove the graphics card to fix it.
  3. The graphics card is a PC graphics card, for connecting to an
    external monitor if required,
  4. We removed it and the problem went away - I noticed that the desk
    uses a bog-standard ATX supply
  5. Tonight we had the technical rehearsal, all went well
  6. After the rehearsal, doing a bit of tweaking without the
    director, the DMX output cut out (essentially as though disconnected) - a
    reboot fixed this
  7. Doing some tweaking with the director, all was going well.
  8. Tweaked the last scene - all working
  9. Looked up to ask director if happy with scene
  10. Looked down - desk gone to shit

And what does “gone to shit” actually mean in this case

  1. Desk screen (not external monitor, one of those white and purple
    ones) blank
  2. LEDs frozen, but significantly dimmer than normal
  3. There is a plug in lamp that fixes to the top of the desk, which
    shines light onto the desk, so the operator can see what he is doing. -
    this went slightly dimmer
  4. I turned the desk off, waited a few seconds, then turned it on.
  5. Screen still blank - DMX as
    though disconnected - nothing responsive - all LED indicator lights off

The lamp has a switch, with Dim, Off and Full (in that order)
When on dim, the screen backlight was at its dimmest
When off, the screen backlight was a bit brighter
When on full, the screen backlight was noticeably brighter

Apparently, there are a number of internal fuses, one of which is on
the DMX output line.

What I intend to do tomorrow

  1. See if the fairies have magically fixed it in the night
  2. Check Fuses
  3. Probe the power supply / swap it out for another
  4. Look for shorts
  5. Look for bad caps

The technical officer from a rental agency called HSL is coming in
tomorrow (with a replacement desk to rent) to have a look at it as well
It is highly unlikely he will fix it (not that kind of technical
officer).

We need to get the desk working for about 10 mins so we can copy the
show onto a floppy (yes, its that old) and transfer it onto a good desk.

The desk is an Avolites Pearl 2000

The dress rehearsal is tomorrow night, the public one the day after.
I have 2 one-hour windows tomorrow during the school day, and about
an hour the day after.

Thanks in advance for any help :smiley:

George


You received this message because you are subscribed to the Google
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Ben Dooks, http://www.fluff.org/ben/ bjdooks@googlemail.com


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It’s on 2004
May update, but te show is in an hour:-D

Thanks
GeorgeOn 27 November 2012 16:50, Jon Wilson fast21@gmail.com wrote:

Good to hear. :slight_smile:

Did you stick the firmware update on it? Or was it already up to date.

Jon W

On 26 November 2012 23:24, George Ainscough dashroom66@gmail.com wrote:

All fixed.

New power supply, some bodge wires, resistors and caps, and it is good as
new.

Thanks for the help :smiley:

George

On 25 November 2012 22:51, George Ainscough dashroom66@gmail.com wrote:

Yeah, though I’ve done lots of these where I’ve replaced those ones,
then it still doesn’t work, then I’ve had to go through them with an ESR
meter, and then go back and order more, pissing me of SOOOO much. Don’t
have time for 2 orders :slight_smile:

Hope they are all visibly crap :slight_smile:

Thanks,
George

On 25 November 2012 22:46, Ben Dooks bjdooks@googlemail.com wrote:

usually bad caps are quite easy to spot, they’ll have either bulged or
leaked.

On 25 November 2012 22:44, George Ainscough dashroom66@gmail.comwrote:

Days I wish I had an ESR meter… :slight_smile:

On 25 November 2012 22:32, Jon Wilson fast21@gmail.com wrote:

Also thinking if it is a bad supply then it’s likely it has taken a
few caps with it too…

On 25 November 2012 22:28, Jon Wilson fast21@gmail.com wrote:

Hi George,

Sounds very much like a dodgy supply to me. That’s quite an old
unit. I notice there is a 2011 dated firmware update available for that
unit too. Might be worth changing the supply and updating the firmware.

Jon Wilson

On 25 November 2012 22:05, DaShroom66 dashroom66@gmail.com wrote:

AS you may (probably not) have noticed, I have not been into the
space recently. The reason for this as you may (probably not) know is
mainly due to the school production occurring, and me rigging the stage
lights / programming the lighting desk. The school’s productions are
remarkably professional for a school, and as such there is a lot of this
kind of work to do. Today I finished the last bits of tweaking the
programming (programming meaning setting up combinations of lights on a
controller desk, not coding), and all is was going remarkably well. Until,
a few seconds after I finished, the desk completely died. The dress
rehearsal is tomorrow so I have about 4 hours to fix it :frowning: I am asking
for any general advice on what may or may not be the problem here.

Ok, a bit of brief history about the problem.

  1. About a week ago, the desk started crashing more than usual
    (locking up, requiring reboot, screen still active but frozen, and LEDs on
    but again frozen)
  2. Avolites (the company that makes it) said that this was a common
    problem, and that you should remove the graphics card to fix it.
  3. The graphics card is a PC graphics card, for connecting to an
    external monitor if required,
  4. We removed it and the problem went away - I noticed that the
    desk uses a bog-standard ATX supply
  5. Tonight we had the technical rehearsal, all went well
  6. After the rehearsal, doing a bit of tweaking without the
    director, the DMX output cut out (essentially as though disconnected) - a
    reboot fixed this
  7. Doing some tweaking with the director, all was going well.
  8. Tweaked the last scene - all working
  9. Looked up to ask director if happy with scene
  10. Looked down - desk gone to shit

And what does “gone to shit” actually mean in this case

  1. Desk screen (not external monitor, one of those white and purple
    ones) blank
  2. LEDs frozen, but significantly dimmer than normal
  3. There is a plug in lamp that fixes to the top of the desk, which
    shines light onto the desk, so the operator can see what he is doing. -
    this went slightly dimmer
  4. I turned the desk off, waited a few seconds, then turned it on.
  5. Screen still blank - DMX as
    though disconnected - nothing responsive - all LED indicator lights off

The lamp has a switch, with Dim, Off and Full (in that order)
When on dim, the screen backlight was at its dimmest
When off, the screen backlight was a bit brighter
When on full, the screen backlight was noticeably brighter

Apparently, there are a number of internal fuses, one of which is
on the DMX output line.

What I intend to do tomorrow

  1. See if the fairies have magically fixed it in the night
  2. Check Fuses
  3. Probe the power supply / swap it out for another
  4. Look for shorts
  5. Look for bad caps

The technical officer from a rental agency called HSL is coming in
tomorrow (with a replacement desk to rent) to have a look at it as well
It is highly unlikely he will fix it (not that kind of technical
officer).

We need to get the desk working for about 10 mins so we can copy
the show onto a floppy (yes, its that old) and transfer it onto a good desk.

The desk is an Avolites Pearl 2000

The dress rehearsal is tomorrow night, the public one the day after.
I have 2 one-hour windows tomorrow during the school day, and about
an hour the day after.

Thanks in advance for any help :smiley:

George


You received this message because you are subscribed to the Google
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Ben Dooks, http://www.fluff.org/ben/ bjdooks@googlemail.com


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Ah… best not to tempt fate just before the show. lol. :slight_smile:

Jon WOn 27 November 2012 17:49, George Ainscough dashroom66@gmail.com wrote:

It’s on 2004
May update, but te show is in an hour:-D

Thanks
George

On 27 November 2012 16:50, Jon Wilson fast21@gmail.com wrote:

Good to hear. :slight_smile:

Did you stick the firmware update on it? Or was it already up to date.

Jon W

On 26 November 2012 23:24, George Ainscough dashroom66@gmail.com wrote:

All fixed.

New power supply, some bodge wires, resistors and caps, and it is good
as new.

Thanks for the help :smiley:

George

On 25 November 2012 22:51, George Ainscough dashroom66@gmail.comwrote:

Yeah, though I’ve done lots of these where I’ve replaced those ones,
then it still doesn’t work, then I’ve had to go through them with an ESR
meter, and then go back and order more, pissing me of SOOOO much. Don’t
have time for 2 orders :slight_smile:

Hope they are all visibly crap :slight_smile:

Thanks,
George

On 25 November 2012 22:46, Ben Dooks bjdooks@googlemail.com wrote:

usually bad caps are quite easy to spot, they’ll have either bulged or
leaked.

On 25 November 2012 22:44, George Ainscough dashroom66@gmail.comwrote:

Days I wish I had an ESR meter… :slight_smile:

On 25 November 2012 22:32, Jon Wilson fast21@gmail.com wrote:

Also thinking if it is a bad supply then it’s likely it has taken a
few caps with it too…

On 25 November 2012 22:28, Jon Wilson fast21@gmail.com wrote:

Hi George,

Sounds very much like a dodgy supply to me. That’s quite an old
unit. I notice there is a 2011 dated firmware update available for that
unit too. Might be worth changing the supply and updating the firmware.

Jon Wilson

On 25 November 2012 22:05, DaShroom66 dashroom66@gmail.com wrote:

AS you may (probably not) have noticed, I have not been into the
space recently. The reason for this as you may (probably not) know is
mainly due to the school production occurring, and me rigging the stage
lights / programming the lighting desk. The school’s productions are
remarkably professional for a school, and as such there is a lot of this
kind of work to do. Today I finished the last bits of tweaking the
programming (programming meaning setting up combinations of lights on a
controller desk, not coding), and all is was going remarkably well. Until,
a few seconds after I finished, the desk completely died. The dress
rehearsal is tomorrow so I have about 4 hours to fix it :frowning: I am asking
for any general advice on what may or may not be the problem here.

Ok, a bit of brief history about the problem.

  1. About a week ago, the desk started crashing more than usual
    (locking up, requiring reboot, screen still active but frozen, and LEDs on
    but again frozen)
  2. Avolites (the company that makes it) said that this was a
    common problem, and that you should remove the graphics card to fix it.
  3. The graphics card is a PC graphics card, for connecting to an
    external monitor if required,
  4. We removed it and the problem went away - I noticed that the
    desk uses a bog-standard ATX supply
  5. Tonight we had the technical rehearsal, all went well
  6. After the rehearsal, doing a bit of tweaking without the
    director, the DMX output cut out (essentially as though disconnected) - a
    reboot fixed this
  7. Doing some tweaking with the director, all was going well.
  8. Tweaked the last scene - all working
  9. Looked up to ask director if happy with scene
  10. Looked down - desk gone to shit

And what does “gone to shit” actually mean in this case

  1. Desk screen (not external monitor, one of those white and
    purple ones) blank
  2. LEDs frozen, but significantly dimmer than normal
  3. There is a plug in lamp that fixes to the top of the desk,
    which shines light onto the desk, so the operator can see what he is doing.
  • this went slightly dimmer
  1. I turned the desk off, waited a few seconds, then turned it on.
  2. Screen still blank - DMX as
    though disconnected - nothing responsive - all LED indicator lights off

The lamp has a switch, with Dim, Off and Full (in that order)
When on dim, the screen backlight was at its dimmest
When off, the screen backlight was a bit brighter
When on full, the screen backlight was noticeably brighter

Apparently, there are a number of internal fuses, one of which is
on the DMX output line.

What I intend to do tomorrow

  1. See if the fairies have magically fixed it in the night
  2. Check Fuses
  3. Probe the power supply / swap it out for another
  4. Look for shorts
  5. Look for bad caps

The technical officer from a rental agency called HSL is coming in
tomorrow (with a replacement desk to rent) to have a look at it as well
It is highly unlikely he will fix it (not that kind of technical
officer).

We need to get the desk working for about 10 mins so we can copy
the show onto a floppy (yes, its that old) and transfer it onto a good desk.

The desk is an Avolites Pearl 2000

The dress rehearsal is tomorrow night, the public one the day
after.
I have 2 one-hour windows tomorrow during the school day, and
about an hour the day after.

Thanks in advance for any help :smiley:

George


You received this message because you are subscribed to the Google
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Ben Dooks, http://www.fluff.org/ben/ bjdooks@googlemail.com


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