Upgrading and restoring Casio FZ-1

Classic synths & pianos

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Upgrading and restoring Casio FZ-1

Unread post by Rara » Fri Jul 12, 2013 4:32 pm

Casio FZ-1.png
Casio FZ-1
Hi all,
I have an FZ-1 which has a dead backlight, the screen is dying (to be expected).
What I'd like to do is swap the floppy drive to PC drive, and if possible find
an LED backlit screen. Also, upgrade sample ram to 4mb.
All do-able, Have been looking around the net. not sure on the screen though,
I'm not keen on replacing the EL foil. Without opening it up cant tell what the original screen is,
96x64 graphic LCD 16 character x 8 lines. Haven't found any service manuals yet.

If I find anything on screens I'll put up here what ever info I find. There are lots of FZ-1 owners
out there that probably want the same thing. :-)

cheers.
Last edited by Rara on Mon Jul 15, 2013 11:49 am, edited 2 times in total.
db7

Re: Upgrading Casio FZ-1

Unread post by db7 » Fri Jul 12, 2013 4:41 pm

Is there any way to upgrade the RAM without finding the very rare official expansion? I know it’s obviously possible, as are most things like this, but when I was considering buying an FZ-1 before and doing some research, I never found any indication that the board had been successfully cloned, so I thought the upgrade wasn’t practically possible without the original. If not, are you devising your own replacement?

Anyway, this sounds like a nice set of goals you have. Good luck! And I look forward to reading about your progress. I’m sure other members feel the same.

Hopefully you’ll find that having a project like this is enjoyable and rewarding…most of the time. :lol: I’ve been there with my SY99, although that was easier as most of it had been done before and I was able to draw on the experiences of other kind users who’d posted their stories. My next project I’m setting up won’t be so easy. ;)
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Re: Upgrading Casio FZ-1

Unread post by Rara » Fri Jul 12, 2013 4:47 pm

For the RAM expansion I found this page

http://www.buchty.net/casio/fz1-simm.html
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Re: Upgrading Casio FZ-1

Unread post by Rara » Fri Jul 12, 2013 4:48 pm

Also the drama's I had with the SY77 taught me to be wary of LCD screens ;-)
db7

Re: Upgrading Casio FZ-1

Unread post by db7 » Fri Jul 12, 2013 5:11 pm

Nice page! I might have seen it last time around, but I didn’t remember it before now. That diagram looks very threatening to me, but since the author calls it “an easy expansion”, I’m sure someone who knows what they’re doing will get on OK!

And since I’ve just read through your thread about the SY77’s LCD, I can see that you do. A rollercoaster of a story! Glad it worked out in the end. I have a thread about my misadventures with the aftertouch of my SY99 if you want to compare our trials. :lol:
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Re: Upgrading Casio FZ-1

Unread post by Miks » Fri Jul 12, 2013 5:19 pm

Hi mscott,

here's an example how to fix the display of your FZ-1...

http://www.midi-rakete.de/eng/ceinbau.htm
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Re: Upgrading and restoring Casio FZ-1

Unread post by Rara » Mon Jul 15, 2013 11:59 am

Thankyou for that,

I emailed my technician who pointed me in the direction of the FZ-1 service manual.
He also advised back lights can be tricky to fit.

I was sent this link by another Musician, Who I bought the FZ from for the original back light.
It looks like the LCD itself is end of life, Isn't readable at all directly. adjusting LCD angle/contrast
as the user manual suggests does nothing.

http://www.instrumentalparts.com/blcfz1.html

I've updated the title, as it is now a full resto on this. By luck this FZ has the MB-10 expansion.
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Re: Upgrading and restoring Casio FZ-1

Unread post by Rara » Tue Jul 16, 2013 5:49 am

Some pictures of the FZ LCD,

LCD itself is dead, shining a torch behind the screen
with the back light removed, only makes the text just visible, when looking at an almost
side on angle.

Plan is step one, find an after market screen. nothing can be done with this one.
match up connector outputs on the main board to the new screen if one is available somewhere
disconnect the inverter, power the back light from somewhere else.

Just like the SY77 and other synths, there's a whining high pitch inverter.
IMG_0006.jpg
IMG_0008.jpg
IMG_0007.jpg
Edit: initially thinking the screen is dead after reading a thread on vintage casio gear
found the same fault as a calculator.
Last edited by Rara on Wed Jul 17, 2013 4:28 am, edited 1 time in total.
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Re: Upgrading and restoring Casio FZ-1

Unread post by Rara » Tue Jul 16, 2013 6:54 pm

There has been some success with the original screen.
Turns out this is the same or very similar screen used in Casio graphing calculators
eg FX-7000G and like the Calculator, the FZ-1 has the identical fault with the screen
problem appears to be the ribbon cables at both ends having bad contacts.

A gentle rub with a cotton swap on the backs of the cables where they attach to the
screen and board brought back some readability.

Backlight will be sourced from a mobile phone possibly an old huawei G6600.
the physical dimensions are almost the same. or cut down an old Iphone backlight.
running from the existing inverter power supply.
FZ-1-screen.jpg
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Re: Upgrading Casio FZ-1

Unread post by Rara » Tue Jul 16, 2013 7:00 pm

db7 wrote:Nice page! I might have seen it last time around, but I didn’t remember it before now. That diagram looks very threatening to me, but since the author calls it “an easy expansion”, I’m sure someone who knows what they’re doing will get on OK!

And since I’ve just read through your thread about the SY77’s LCD, I can see that you do. A rollercoaster of a story! Glad it worked out in the end. I have a thread about my misadventures with the aftertouch of my SY99 if you want to compare our trials. :lol:
I am still reading your SY99 page .... you've had fun .....
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Re: Upgrading and restoring Casio FZ-1

Unread post by Rara » Wed Jul 17, 2013 4:18 am

one quick update, more progress, looking at the screen straight on.
No back light yet.
FZ-1-screen2.jpg
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Re: Upgrading and restoring Casio FZ-1

Unread post by parametric » Wed Jul 17, 2013 3:25 pm

Hi mscott,

I think its great that you are restoring your FZ-1

Take a look at this thread http://fusioneer.proboards.com/index.cg ... 478&page=1

- a bit of cross-fertilisation from another forum - and another instrument - BUT the illumination solution might just save you money - AND maybe get rid of that inverter whine too . . .

I've always thought that Casio boards were much under-appreciated and given a rough ride in the Music Press and were never taken seriously.

I always fancied the CZ-5000, but at the time could not afford to buy one.

Rumour has it that the Human whistling phrase at the very end of the EastEnders theme was played on a Casio - though I have no idea which one . . . . . :roll:

Best Regards

parametric
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Re: Upgrading and restoring Casio FZ-1

Unread post by Rara » Wed Jul 17, 2013 4:22 pm

Thanks for the link and the tip.
I will read that later, need to sign up ....

Eastenders - unmistakably Casio, I'm guessing a CZ-5000 about the same time.
http://youtu.be/LxayYlq5qX8?t=1m14s

Whistle sounds, skip through to 2:15, i had a crack at recreating a casio human voice/whistle
on a poly800mk2, I think it worked just as good.
http://soundcloud.com/miakai/reflections-pt1

After I have the screen fixed, next job is dismantle the keybed and clean it, there's a few intermittent
keys, clean all the boards which are covered in a lot of dust and re-solder all the cracked socket joints,
also clean the sliders.
cheers.
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Re: Upgrading and restoring Casio FZ-1

Unread post by Rara » Tue Jul 23, 2013 11:08 am

home made backlight
I used a piece of clear yellow acrylic sheet 48mmx70mm with little notch's cut out for the leds to sit in
2x 3mm leds (5000mcd 3.2v) 2x 100r resistors
piece of white paper for the backing.
using EL backlight wire to plug into existing sockect on the boarg

Later will disconnect or bypass power to inverter (5v) and
wire up the existing vdd to the socket. ( i will clean up the bare leads/wires etc ;-) )

camera over exposed the light a bit ...

unfortunately a cant put leds on the opposite side.
DPP_0002.JPG
DPP_0001.JPG
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Re: Upgrading and restoring Casio FZ-1

Unread post by Rara » Tue Jul 23, 2013 12:33 pm

Test in synth with inverter disconnected
DPP_0004.JPG
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