Roland S770 sampler replacing the backlight on the display

Hi everybody this week we replace the backlight in the display on the flagship Roland S770 sampler.
heres some background on the S770
The S-7XX series were the flagship models of Roland's digital sampler line-up of the early 1990's. Unlike previous S-series samplers, these featured 16-bit sampling at rates up to 48 KHz. Compared to the grittiness of the 12-bit S-550 and W-30, these have a clean, professional and warm sound quality. The S-750 features 2 Mbytes of sample memory (enough for about 22 seconds at 44.1 KHz), a floppy disk drive, an external SCSI bus for adding more drives, a very large built-in text/graphics LCD display, stereo input and output, six assignable analog outs, a mouse and external video monitor connections for enhanced control. The higher-end S-770 included an internal 40 Mbyte SCSI drive and S/PDIF outputs.
The S-750/770 features 24 voices of polyphony and 16-part multitimbrality, allowing many samples and voices to be layered. A patch can contain up to 8 layered or split samples. Each voice has a time-variant filter (TVF) and amplifier (TVA), each with its own 5-segment envelope, and a shared LFO. The resonant digital filter is multimode (low-pass, high-pass, band-pass) and uses the same excellent algorithm as the Roland D- and JD-series synthesizers.
thanks for watching the video hope this helps when you want to replace backlights
Here is the backlight link:
elpanelandtape...
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Love and Peace Bangers and Chumley
Take the fear out the gear titles theme tune is called Vintage Jarre copyright 2012 Simon Hunns

[@jonathanredman8497]

Excellent video. A job I need to do.

[@VintageMusicGearTV]

Great video cheers guys

[@sapainca]

take the LCD offline and the window/menu speed increases with the RGB digital out to a monitor. The LCD has a separate LCD chip that converts signals from TTL. Also the onboard LCD offers nothing. Latest turbo ROM increases menu speed too, even without the CPU upgrade

[@takethefearoutthegear6229]

brilliant thanks for the info many thanks Chumley and Bangers

[@DeftAudio]

Exactly, there is no point of replacing LCD backlight on S750/S770 for that reason. Also no single reason to install a floppy emulator in those...

[@wearetemporary]

Hey did part 2 with the USB floppy emulator ever happen? I have an S-770 here and would LOVE to watch you guys take that project on for us.

[@takethefearoutthegear6229]

Hi we have done a series of 3 videos explaining in depth about floopy drive emulators, the final one shows an emulator in a s770, thanks bangers and chumley

[@LexNevilleGames]

Hey Chumley and Bangers. I've been the proud owner of an S750 for a couple of decades, unfortunately I've never had it working 100%. The unit has a fault whereby it can lock up when loading samples. I won't go into to much detail into the exact symptoms here, but I was wondering, do you have any suggestions as to where I could find any resources to help me troubleshoot it?

[@takethefearoutthegear6229]

Synthxl.com they have loads of service manuals

[@carlosfernandes8919]

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