[squier79]

hi, i have a little problem with my “new” uf7 master keyboard. I bought it used and the pitch wheel doesn’t work, it looks like it is always set to maximum, and moving up or down the wheel (movement works 100%) doesn’t affect the sound. The problem is that all the notes i play are one tone over, for example if i press the C key, the keyboard plays the D. How can i solve this problem? the pitch wheel is a potentiometer with the movement adjusted by a spring? if yes i can change the potentiometer with an equal one. Can anyone help me for this? i’d like a guide to disassemble the keyboard if i have to change the potentiometer, or i need some tip to resolve this… i love this keyboard but for now i can’t use it.

Thanks all

[Amanda]

Hi,the problem should caued by the pitch potentiometer get stuck inside. You can try to move the pitchbend wheel Heavily several times to see if helpful.
If above doesn’t work. You can contact me by email.In that I can send you UF service manual. My mail:[email protected]
Thanks.

[squier79]

Hi, I’m sorry but I’m trying to do what you told but the pitch is really blocked in the up position, and the keyboard sounds like it has a “tremolo” activated. With the service manual I can try to repair the keyboard with the help of a technical service. If you can please send me it to [email protected]

[Amanda]

Ok, I will send UF service manual to your mailbox. Thanks.

[milikito]

Hi,

I’m also having the same issue with my UF8. The modulation wheel is working fine, but the pitch bender is constantly sending data (values in the range of 2400-2600) regardless of the position of the wheel, which mechanically behaves as expected. I’m using a MIDI filter to remove the incorrect bender data so at least I can use the keyboard without it interfering. Here is a sample of the MIDI output (I pressed a key at the end):

TIMESTAMP IN PORT STATUS DATA1 DATA2 CHAN NOTE EVENT
02DFACBB 9 — E0 2C 54 1 — Pitch Bend
02DFACFA 9 — E0 58 53 1 — Pitch Bend
02DFAD57 9 — E0 2C 54 1 — Pitch Bend
02DFAD95 9 — E0 00 55 1 — Pitch Bend
02DFADB5 9 — E0 2C 54 1 — Pitch Bend
02DFADF3 9 — E0 58 53 1 — Pitch Bend
02DFAE4F 9 — E0 2C 54 1 — Pitch Bend
02DFAECC 9 — E0 58 53 1 — Pitch Bend
02DFAF2A 9 — E0 2C 54 1 — Pitch Bend
02DFAFA5 9 — E0 58 53 1 — Pitch Bend
02DFB002 9 — E0 2C 54 1 — Pitch Bend
02DFB07E 9 — E0 58 53 1 — Pitch Bend
02DFB0DC 9 — E0 2C 54 1 — Pitch Bend
02DFB11A 9 — E0 00 55 1 — Pitch Bend
02DFB13A 9 — E0 2C 54 1 — Pitch Bend
02DFB178 9 — E0 58 53 1 — Pitch Bend
02DFB1D5 9 — E0 2C 54 1 — Pitch Bend
02DFB214 9 — E0 00 55 1 — Pitch Bend
02DFB233 9 — E0 2C 54 1 — Pitch Bend
02DFB272 9 — E0 58 53 1 — Pitch Bend
02DFB2CF 9 — E0 2C 54 1 — Pitch Bend
02DFB34B 9 — E0 58 53 1 — Pitch Bend
02DFB3A8 9 — E0 2C 54 1 — Pitch Bend
02DFB3E7 9 — E0 00 55 1 — Pitch Bend
02DFB406 9 — E0 2C 54 1 — Pitch Bend
02DFB445 9 — E0 58 53 1 — Pitch Bend
02DFB4A2 9 — E0 2C 54 1 — Pitch Bend
02DFB51E 9 — E0 58 53 1 — Pitch Bend
02DFBB02 9 — 90 37 38 1 G 3 Note On
02DFBB92 9 — 80 37 0E 1 G 3 Note Off
​
Can you please also share the schematics with me? Any help on how to resolve this would be greatly appreciated. Thanks!

[Zhao Yitian]

Please send email to [email protected], our service people will help.

[ben]

Here is a sample of the MIDI output (I pressed a key at the end):

TIMESTAMP IN PORT STATUS DATA1 DATA2 CHAN NOTE EVENT
02DFACBB 9 — E0 2C 54 1 — Pitch Bend
02DFACFA 9 — E0 58 53 1 — Pitch Bend
02DFAD57 9 — E0 2C 54 1 — Pitch Bend
02DFAD95 9 — E0 00 55 1 — Pitch Bend
02DFADB5 9 — E0 2C 54 1 — Pitch Bend

did your problem get fixed somehow?

my cme uf5 does the same. but even with the pitch-pot disconnected from the pcb i get E0 XX XX outputs. even when i move fader #8 there are several blocks of E0…data inside.

i had a similar problem with another controller caused by a damaged fader. these systems don’t seem to like open inputs on their boards.

is it possible to get a copy of a service-manual for the cme uf5/6/8?
is a firmware-file available for download?
i like my uf5, it’s been reliable and flexible, it’s still being run via midi (who needs usb?)

best regards

[Amanda]

Hi, Milikito

Sorry for the troubles. Regarding your problem, you can try below tow ways:
1. Move the pitch bend wheel heavier several times to see if helpful.
2. Disconnect UF, screw down the nut of pitchbend potentiometer.
If you have any future problem, please send me emal:[email protected]

[Amanda]

Hi, Ben

It seems your probme is in the electrical circuit. You can download UF service manual from below link:https://mega.nz/#!9vg2CIaL
And if your UF is the first version(Black and Red), it can’t do the firmware upgrade. Sorry about this.

[ben]

Hello Amanda, it’s been a long, long time since i was checked for a reply, so unfortunately your link doesn’t work anymore. it says i need a key to download. could you please re-upload or send me a valid key for the service-manual?
best regards

ben

[julien]

Hi,

I’m running into the same issue with a cme uf-8 keyboard (first edition, black and red). I get random « pitch bend » events in midi while playing, for example

20:1 Note on 0, note 70, velocity 56
20:1 Note off 0, note 70, velocity 49
20:1 Pitch bend 0, value 1512
20:1 Pitch bend 0, value 1848
20:1 Note on 0, note 67, velocity 64
20:1 Note on 0, note 70, velocity 73
20:1 Note off 0, note 67, velocity 35

20:1 Note on 0, note 75, velocity 74
20:1 Note off 0, note 67, velocity 35
20:1 Note off 0, note 72, velocity 42
20:1 Pitch bend 0, value 8191
20:1 Pitch bend 0, value 1848
20:1 Note on 0, note 70, velocity 84
20:1 Note off 0, note 75, velocity 23

The pitch bend itself is mostly unresponsive (does not trigger many events when actioned).

Is there anything that can be done outside filtering these unwanted events (i can live without a pitch bend wheel, but in its current state it is impossible to play) ?

Regards,

Julien

[Amanda]

Hi,Julien

It seems the pitchbend potentiometer is broken. Because UF keyboards is stopped production many years. So there is no spare parts for it in the factory. Sorry about this.
It seems you don’t need to use pitchbend function now. The fastest way is disconnect the pitchbend line from the circuit board. In that to avoid the useless message for you.
Hope this will help you, If you have any more question, please send mail to me. ([email protected]) Thanks.

Best regards

Amanda

[julien]

Hi Amanda,

Thank you for your answer. I sent you an email last tuesday, about the service manual. Did you receive it ?

Regards,

Julien

[julien]

Searching a bit, I found some videos and tutorials about the uf8 disassembly. I was a bit surprised that the screws are not exactly at the same positions as my keyboard, there must have been different chassis revisions. Would be nice to have a true service manual, especially if it already exists, though.

The good news is that disconnecting the pitch bend did the trick : the keyboard no longer sends random pitch bend events.

Best regards and thanks for your support,
julien

[Author]

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