Roland Clan Forums

You are welcome!

hi there i saw in an earler post that you can use polyester caps can you also use tantalum caps of the same value as no caps have leaked on my xp50 i will just change them all and tantalum caps are easy to replace smd caps with and no prob with polarity thanks for all of your insite and continued h...

Hi Andy,

You can find all my sounds in this link:

http://www.motifator.com/index.php/foru ... ad/455729/

Or, specifically the library you want, is here:

https://rapidshare.com/files/426901162/ ... und_V1.rar

Enjoy,
Cesarsound.

My gess is that the display is bad and needs to be replaced.

Hello,
I folk kindly made a video showing the simple process to repair the display, as I explained in this thread.

Please watch it here:

http://www.youtube.com/watch?v=DBlEcb1rZMA

Cesarsound.

Hi ebowglow,

You may find the service manual here:
http://elektrotanya.com/

Good lock.
Cesarsound.

I have a XP50 since 1995 (purchased brand new) and I have the original diskette.

You are lucky guys, here is the files from original diskette:

http://rapidshare.com/files/2701993220/ ... rsound.rar

Enjoy. Cesarsound

Hi Obsolet, The problem may be on caps that are on the audio path, coming from DA converter to op-amps output. You should try to replace that caps, following the service manual schematics. Also, here are some useful information form user mtl777: http://forums.rolandclan.com/viewtopic.php?f=50&t=...

Hi Gerard, I am happy if a I could help someone. About your problem of keys / tuning, my gess is dirty contacts on keybed. I suggest you remove all the keys and clean the rubber and PCB contacts above the keybed. About the sustained notes, also check up the hold jack, maybe you need to apply a conta...

Hello. I am fanboy of old drum machines, such as CR78, TR-808, etc too. While the Fantom has some samples of CR78 (although I think the CR78 samples on Fantom are not so good) it does not have a ready to use drum kit, so you need to program one and them program the rithms such as bossanova, beguine,...

great news!

I suggest you do a external control of contrast using a potentiometer to confirm that the problem is on LCD or not. Get a 100k pot, connect one of extremes of pot to -5v and other to +5v and the center of pot connect to the wire 4 that goes to the LCD (you should disconnect this wire from the mother...

Not necessary the LCD was damaged. But certainly the contrast circuit composed by IC6, R106, R108, R107, R114, R113 is not working correctly as the normal contrast voltage of a LCD is about -0.9v to +1.5v, these are the values I found on my XP50. In my XP50 the problem was on caps AND also on one PC...

now put a multimeter (in DC scale of 2V) on gnd and pin 4 of CN9 and try to adjust the contrast. confirm if you can read a value aproxmated of -0.9 to + 1.5v.

kooroshi,

First, please do the following test:
Disconnect the wire on pin number 4 of connector CN9 (the one that goes to the LCD) and connect this wire to the GND and see if the contrast is improved.
Let me know about the results.

Cesarsound.