Last night the right-hand edge of my PSR3000 display went blank for a while and later came back. I'm guessing this is a loose connection so I'll be opening up to invesigate at some point.

But could it be internal to the display, in which case I'll be investigating spares / repair availability here in the UK!

Anyone else had this problem / got any ideas?

Thanks

John

The display is surrounded by four, tiny, florescent lights. Sounds as if one of them is going bad. Unfortunately, the lights are built into the display and cannot be replaced individually.

Sorry about the bad news,

Gary

Gary is correct.. here is Yamaha parts & service info..if you want to save and replace it yourself..

https://www.yamaha24x7.com/yamahaoms/QuickOrder.aspx

Ho hum.

I might still whizz the lid off just because I can, I'll just have to see how things go!

Thanks for the info.

John,

The only part that is difficult is making sure to first remove the Smart Media Card reader and slip it inside the case before opening. The connection is very short to the reader and it's easy to damage if you overlook that step.

The lamps on the display are soldered directly to the display, and the culprit may be nothing more than a cold solder joint--seen a fair number of them over the years. It takes a bit of fines to get to the display board because of the location, but once accessed you could easily resolder the connections.

If the display itself is going south, the cost of replacement is quite high. Some folks have merely connected a portable DVD player to the keyboard's video output and used that for their display.

Good Luck,

Gary

Gary

Thanks for the tip, I'll be proceeding with extreme caution!

I'll probably have a look this weekend.

So, having proceeded with extreme caution and after removing the smartmedia reader first (thanks) I'm still only halfway down the circuit boards, I'll get all the way in eventually....

However the fault is now intermittent! BUT if I press even slightly on the top right of the LCD display, the fault returns. As the pressure involved is very little I feel this suggests an internal LCD issue.

There will be a further bulletin after this evenings surgery!

So, have got the LCD out and... the only mildly suspicious cable is the ribbon cable that goes across the back and loops round into a ribbon cable edge connector. So I loosened the clamp, waggled it a bit, replaced, re-assembled the thing,and the LCD is now OK. Still goes dodgy if I press top right so I suspect I've actually made no real difference!

I'll see how this goes in the next few weeks.

Thanks again for the help.

Patient complains to Doctor: "It hurts when I do this"
Doctor replies: "Then stop doing it"...
Sooooooo... Stop pushing top right of LCD screen.

Seriously I also previously experienced an LCD outage and with Gary's help and a flashlight we determined it was the bulbs. If you can see a display with a flashlight, then it indeed is the bulbs, or loose solder joints, or in your case perhaps a loose ribbon cable, In my case the display was fixed along with a motherboard replacement through Yamaha.

Good luck...hope it keeps on a workin'

Think I'm going for the external small monitor option, my fault has reverted back to "normally there, occasionally not" mode.

For those who are interested, the OEM part number on the back of the LCD module is "ARIMA Display Corp mc57t02E". I can find this in the UK for a mere £400 (makes Yamaha look cheap!) or from a hong-kong supplier on eBay for about £100 + postage, trouble is the picture they've got may have the same part number but the connector looks different. Therefore not worth the risk given that I can get a small TFT monitor for less than that today from a local supplier and ergonimocally moving the display to somewhere nearer my eyeline has a certain appeal.

I wonder if the keyboard is trying to tell me something...

I've now got a dead key, stripped it down, the membrane thing is distorted. Oh well, first key failure ever since I got my PSR 630 quite some time ago.

Anyway, e-mailed Yamaha UK support this morning 10.30, got a response at 16.00 giving me the part number(s) and cost so I've rung the spares department and ordered a full set of keyboard contact strips.

I asked about the cost of the LCD as well, and as advised above it sure ain't cheap...

Heres the bits of their e-mail that matter:

---------------------------------------------------------
For UK Customer's: Yamaha UK Spares - 0844 811 1116 (Option 4) or via your local Yamaha Music Dealer.

For Republic Of Ireland Customer's - Yamaha UK Spares - (0) 15262449 (Option 4) or via your local Yamaha Music Dealer.

The parts you have requested - Rubber contact octave - VU32840R in stock and a retail price of £4.31 each inc VAT

Rubber contact single C - VU32850R in stock and a retail price of £1.54 each inc VAT

LCD - WK381700 in stock and a retail price of £333.25 inc VAT
---------------------------------------------------------

THey reckon the bits will arrive in 5 to 8 days; note that they are being posted from Germany.

Also can I add that I've tried driving an external display from the video out - but it seems my video out is dead (and it's not a loose connector inside as I've checked that whilst looking at the keybed).

Compared to buying a "NEW" keyboard that's a pretty cheap repair doing it yourself..

good luck

John,

The actual display itself may be just fine, and it could be that just a chip or two has fried. What leads me to this conclusion is that not only is the display dead, but the auxiliary video output is dead as well. There is a video board, but I don't recall exactly where it is located. If you have access to the block diagram and associated schematics you can find the video card and its part number.

Gary

I forgot to mention that I actually removed the LCD module completely whilst keeping the pcb cable and inverter supply wired up. I then replaced and reattached the LCD "frame" so that I could use all the buttons if required, although in the event there was no need to do so.

With the LCD in my hands I can make the fault appear and disappear by applying a very slight twisting force to the module. This could well be a loose joint somewhere but I'm very unsure about dismantling the unit any further even though it looks like the thing is held together by high strength adhesive backed felt tape. I dare say duct tape would hold at a pinch when reassembling but I have no idea what lurks within so for now I can live with the fault.

The pcb cable seems secure at both end, I've given it a waggle and the display is unaffected.

The video is output from the right hand part of the main motherboard that occupies the shielded frame which is the top of the pcb stack once you get the bottom off the keyboard. There's no sign of any electrical stress in there, you'd think it was fresh from the factory to be honest.

Having the schematics would help, could I get these off Yamaha?

John, I have sent you a Private Message.

Ian

John,

Sounds like a cold solder joint to me. I would get out the magnifing glass and look at those solder joints very closely.

Tom

John,

I have the repair CD, but it is much too large to email. I could send it to you via Snail Mail, though. Just need your mailing address in the UK.

Gary

good news, mostly.

Firstly, new keyboard strips fitted, working fine.

Secondly. video output fixed. Whilst I can't see a visible break, the pcb track feeding the output connector centre pin was totally open circuit, so a quick bridge with a short piece of wire has done the trick.

Thirdly, the 5" monitor that I got locally either shows a 2/3 size version of the full display, when the 3k is told to feed a PAL signal, or full width chopped slightly at the bottom if I feed NTSC. I think I'll be running the latter for a bit because...

Fourthly, having now disassembled the LCD module completely I'm certain the fault is in final bit of PCB that connects to the lcd module itself. Can't do a thing about it, in fact based on it's behavior whilst I was re-assembling I think it's going to get worse.

I'll investigate the external monitor situation further. The 5" thing I have is merely adequate. Something a bit bigger is needed but I'd also like more control over the video scaling - the current thing has no control over scaling.

Thanks again to you all for your help here!

Well... whilst my main board is now a T3 having the 3000 with a working internal LCD has become a useful thing, so I bit the bullet and bought a replacement from China on eBay, there are a number being sold by various vendors although the descriptions look very similar and the same picture is used so they could all come from the same place.

Anyhow I placed an order. The LCD arrived within 2 weeks and was very well packaged.

And now it is installed and working so I'm a happy bunny. You cannot tell it is not the original.

For others contemplating this be aware that the replacement is not quite mechanically identical in that it doesn't mount totally flush on it's mounting as the back is not quite as flat as the original. The ribbon cable interface connector is bottom right rather than centre right. Neither of these issues are show stoppers.

Biggest issue is that the backlight connector is an 8 way standard block with just 2 pins used which are in the same place as the pins on the original Yamaha connector. It might be possible to badge the connector to fit but all I did was splice the wire.

I've just upgraded the firmware to v1.80 and as a result I have formatted and am using a 32gb small format thumb drive. Whilst I'm never going to use even 1% of the available space it was the smallest capacity drive I had going spare.

If you are still on an early firmware version (I was on v1.04) I'd suggest you upgrade a.s.a.p. because it is also hard to find smaller usb thumb drives that are compatible with the early firmware. Also I don't think you can upgrade the firmware from the usb drive on early firmware versions, a smartmedia failure could be tricky to resolve as that is also getting scarce.

Thanks again to you all for your help with this problem.