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InfectionMusic
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Joined: 08 Jan 2007
Posts: 481
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 Posted: Mon Jun 01, 2009 9:41 am Post subject: Giving an old friend a new lease of life... |
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I finally got around to fixing the display on my Yamaha TG77:
This is one of those newer LCD displays. The fix also eliminates the tiresome high-pitched whine from the back light inverter circuit. |
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oldgearguy
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Joined: 14 May 2009
Posts: 28
Location: US
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| Posted: Mon Jun 01, 2009 11:24 am Post subject: |
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Where did you get that one? I replaced my TG-77 LCD backlight only (purchased from Telesis in california USA) and it looks great, but any time I can remove the inverter from a piece of gear I'm much happier.
I replaced the PPG LCD with a VFD and once I finish the overlay (blue tinted plastic cover) it'll be perfect. That PPG inverter had a very noticeable whine. |
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InfectionMusic
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oldgearguy
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Joined: 14 May 2009
Posts: 28
Location: US
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| Posted: Mon Jun 01, 2009 3:04 pm Post subject: |
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| Nice. I'm adding this to my list of projects. |
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BirdFLU
Newbie
Joined: 29 Jan 2007
Posts: 176
Location: PDX, OR
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| Posted: Mon Jun 01, 2009 3:29 pm Post subject: |
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I'd love to have nice bright display for my VZ-10m. I'll have to poke around and see if there's an LED version for it. But if you come across one, please let me know.
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InfectionMusic
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Joined: 08 Jan 2007
Posts: 481
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| Posted: Tue Jun 02, 2009 11:35 am Post subject: |
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| Nothing immediately obvious except that it's the same display as in the FZ-1 and I have heard of an LED replacement for that machine. However, nothing is showing up on google right now. |
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BirdFLU
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Joined: 29 Jan 2007
Posts: 176
Location: PDX, OR
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| Posted: Tue Jun 02, 2009 9:18 pm Post subject: |
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I've already installed an EL replacement. It's better than nothing but an LED would be great.
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InfectionMusic
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Joined: 08 Jan 2007
Posts: 481
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| Posted: Wed Jun 03, 2009 5:12 am Post subject: |
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EL's are okay but thy will fail again in another couple of years. Plus there's the issue of that annoying whine from the inverter circuit. I also think that the price of the EL foil is high compared to the price of the LED-based display.
I've had a good look around at the LCD scene now and - I might be wrong on this - it seems that changing the display to an LED is easier where the designer used a display with an integrated controller chip as most new displays have the controller on board.
It would be handy if there was a database of replacement part numbers for various synths. |
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