Roland FP 740 - Roland Music

Ch?o b?n, v?n ?? n?y c? kh? ??n gi?n, ??c bi?t ? Piano ?i?n hay c? tr?ng th?i n?y, b?n c? th? ghi l?i c?c ph?m b? m?t ?m thanh, sau ?? m? ?ai ?c ra, b?n d??i ??n c? n?t cao su b?n ch? c?n b?o v? c?i n?t ?? l? ???c.

https://guitardongtam.com/

https://medias.audiofanzine.com/files/fp-2-om-478648.pdf
https://static.roland.com/assets/media/pdf/FP-90_e01_W.pdf
http://www.pianorent.dk/digitalpiano/roland-f140r/dokumenter/RP401R_F-130R.pdf
http://www.rosaudioservice.ru/uploads/attachments/pdf/owner-s-manual_FP-50_OM.pdf

If everything lights up and responds to button pushes like normal, and you've done a hard reset as described in the manual, check to see if you have sound out of the headphone jack. It's most likely not a user serviceable problem and will need to go to the shop, but it will probably be the output amp rather than the main board.

go to the utility settings, accompaniment settings..turn off.

buy some strips of velcro with the tape on one side..cut out your pieces and mount them to the hammer..

Here's a link to the Owner's Manual
for a service manual, you're probably going to have to contact Roland directly, since they don't even list the fp-8 on their website. Service manuals for their other products only run about five bucks for a hard copy, i believe. I'm sure you can get to the right place through here: http://www.rolandus.com/corporate/contact_us/

I first would suspect the switches on the eadphone jack. Normally these cut off the speakers when headphones are plugged in. These jacks and the switches are really weak, poorly made, and easily broken, especially if headphone cord gets yanked.

your sound process digitaliser has burned out the crackling should have warned you as to the fault and had it replaced (fixed) right away this is a simple repair but does need to be done by an electronics tech

Roland FP is a nice keyboard but has a known problem on cracking key weights. There is a counter weight under each key to push the key upward. There are two sizes of weight beams, longer one for white keys and shorter one for black keys. Roland did not make the original weight beams strong enough to last. They will crack and eventually break. When it happens, the key will stay down. Fortunately, they can be easily replaced.

Roland FP-8 has 4 black screws at the bottom on each side end. Remove the screws, flip the ends up and expose the interior. Near the hinge of the problematic key, carefully ply open the hinge tabs and remove the key from the hinge. You will find a weight beam under the key. Remove and inspect the weight. There should be a metal wrapped in a plastic beam. If the metal part is missing, find the missing part and replace with a new beam. You can order weight beams from Roland. It costs about $10 each plus shipping. Put everything back in the reversed order.

Start by calling support at one of the numbers at this site:

http://www.rolandus.com/support/?tab=contact

They can steer you to to where you can order the part.