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Sound Reinforcement - Forums for Live Sound Professionals - Your Displayed Name Must Be Your Real Full Name To Post In The Live Sound Forums => LAB: The Classic Live Audio Board => Topic started by: richard bryant on January 01, 2017, 04:07:44 PM
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Hello,
I attempted to use a M7CL48 the other day at a rehearsal/broadcast room. the console is left on all the time and the last time i was in we set up a mix/monitor scene and saved it. Lucky for me it was still up and in place when i returned. the console was functioning i.e. the monitor and main outs were routed and working but there was no screen. i needed to make adjustments and ad a new monitor mix and without the screen i wasn't able. I tried everything i could think of to restore the screen(including powering down the console) to no avail. I don't know the board well enough to know whether there is a sleep mode for the screen. if there is I would appreciate knowing how to restore it. I have a feeling the screen has failed...
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Welcome to the Forums! We will find a huge wealth of knowledge here, and we'll be happy to help you out! However, per the Rules of Participation, you do need to post using your Real, Full Name as your Display Name. Would you mind popping back into your Profile and updating your Display Name to reflect your Real, Full Name? Regrettably, we are unable to assist you until you comply!
Thanks!
-Ray
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Hello,
I attempted to use a M7CL48 the other day at a rehearsal/broadcast room. the console is left on all the time and the last time i was in we set up a mix/monitor scene and saved it. Lucky for me it was still up and in place when i returned. the console was functioning i.e. the monitor and main outs were routed and working but there was no screen. i needed to make adjustments and ad a new monitor mix and without the screen i wasn't able. I tried everything i could think of to restore the screen(including powering down the console) to no avail. I don't know the board well enough to know whether there is a sleep mode for the screen. if there is I would appreciate knowing how to restore it. I have a feeling the screen has failed...
I would be pretty certain your screen has failed. I've had it happen before... there is no sleep mode that I recall.
Jason
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I would be pretty certain your screen has failed. I've had it happen before... there is no sleep mode that I recall.
Jason
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I would be pretty certain your screen has failed. I've had it happen before... there is no sleep mode that I recall.
Jason
That's what i was thinking but wanted to see if anyone else had experienced this. Thanks for the Reply Jason!
Richard
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That's what i was thinking but wanted to see if anyone else had experienced this. Thanks for the Reply Jason!
Richard
Yamaha is predominantly what we use and I have never encountered a sleep mode.
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Take a bright flashlight and shine very close to the screen. If you can see the display, it's possible the backlight has failed. You still need a replacement but st least you can sort of see things if it is absolutely critical you do something with the console.
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Take a bright flashlight and shine very close to the screen. If you can see the display, it's possible the backlight has failed. You still need a replacement but st least you can sort of see things if it is absolutely critical you do something with the console.
+1
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+1
And a gold star.
Sent from my iPhone using Tapatalk
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Hello,
I attempted to use a M7CL48 the other day at a rehearsal/broadcast room. the console is left on all the time and the last time i was in we set up a mix/monitor scene and saved it. Lucky for me it was still up and in place when i returned. the console was functioning i.e. the monitor and main outs were routed and working but there was no screen. i needed to make adjustments and ad a new monitor mix and without the screen i wasn't able. I tried everything i could think of to restore the screen(including powering down the console) to no avail. I don't know the board well enough to know whether there is a sleep mode for the screen. if there is I would appreciate knowing how to restore it. I have a feeling the screen has failed...
The screen itself may be fine, but the back light will fail over time. The service options are to replace the whole screen assembly, or, in some cases you can replace just the back light. I just replaced the back light in a PM-5D last month.
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I've actually fixed a couple of these in the last year or so. There's a separate power supply for the high voltage for that backlight, and that seems like the most common failure. That's the INV card on the back of the display, though testing it is a little tricky since you have to disconnect a bunch of stuff to get at the display guts.