RE: [vintagesynthrepair] If it were possible
2015-03-20 by Hamblin, Scott
I see some potential for this approach, especially where the original instruments have major chronic electronic problems. Leaking acid from dead batteries in
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SV: [vintagesynthrepair] If it were possible
2015-03-20 by Hans
Prices Korg 01w fd are going for these days it would be much cheaper just getting another used unit before spending 10 minutes opening it. With very few
If it were possible
2015-03-18 by xp_sucks@...
Ok I ve learned my lesson with Korg parts ;-) I have 2 x 01/w FD both with the similar noisy fault on all outputs. Pretty much changed everything from the
Re: [vintagesynthrepair] E-mu Emulator III
2015-03-15 by Kim Günther Hansen
youre wellcome, i just meant that often it seems that when you fix one thing on an EIII another breaks ., Med venlig hilsen Kim G. Hansen Redaktør, Radio24syv
SCI Prophet 2000 Firmware
2015-03-13 by snugglepussyisme@...
This may be a shot in the dark, but does anyone have the version 4.3b firmware for the SCI Prophet they d be willing to part with?
Re: [vintagesynthrepair] Roland XP 80 Battery & Display
2015-03-07 by John Henson
I worked on an XP50 a few months ago and had similar kinds of problems, the display didn t work and the likelihood was a problem with the contrast control
Re: [vintagesynthrepair] E-mu Emulator III
2015-03-07 by NoëlBuhagiar
thanks for your time and help temperemental instrument??!!... will check that out.. LOL NoelBuhagiar i wrote that it should be trimmed to 5,5 volts. that was
Roland XP 80 Battery & Display
2015-03-07 by Samuel Adams
Thanks to those who offered their advise on the display. Someone mentioned replacing a cap. I do have some soldering on board experience so I was wondering
Re: [vintagesynthrepair] E-mu Emulator III
2015-03-06 by Kim Günther Hansen
i wrote that it should be trimmed to 5,5 volts. that was from memory and it was not quite correct: it shiuld be 5,05 volts. not much, but it can make a
Re: [vintagesynthrepair] Roland U20
2015-02-27 by NoëlBuhagiar
Hi.. have a look at page 148 of owner’s manual for initialization procedure maybe that could help you you could probably also do a bulk dump using midi to
Re: [vintagesynthrepair] Re: E-mu Emulator III
2015-02-27 by NoëlBuhagiar
Hello and thank you! doesn’t look like a contrast setting problem as characters are seen ok on LCDisplay but they’re not right thks, NoelBuhagiar Maybe
Re: [vintagesynthrepair] E-mu Emulator III
2015-02-27 by NoëlBuhagiar
hi Jamie, thank you for your very useful information you have much experience I know there is a switch at back to set voltage yes.. it is set proper for
Re: [vintagesynthrepair] E-mu Emulator III
2015-02-27 by NoëlBuhagiar
Hi.. yes there is a trim pot although I haven’t touched it yet will have a look later at psu I checked caps for ESR in circuit although could be they need to
Re: [vintagesynthrepair] Re: E-mu Emulator III
2015-02-27 by JAMIE logan
only on the racks which use a negative feedback circuit which is done by a dc to dc invertor circuit there is a small hole that you can put a small screw
Roland U20
2015-02-27 by coljean@...
Hi all, I have just acquired a U20 and when I first powered it up all seemed OK. All keys played,display showed Grandpiano.I then selected RomPlay and both
Roland U20
2015-02-25 by coljean@...
Hi all, I ve just acquired a Roland U20 keyboard and when I powered it up it showed Grand piano,the keys all worked,I tried the Romplay demo, they worked and I
Re: E-mu Emulator III
2015-02-25 by Scott Frye
Maybe there s a contrast adjustment for the display? ?
Re: [vintagesynthrepair] E-mu Emulator III
2015-02-24 by Kim Günther Hansen
there should be a trimpot in the psu for adjusting to the correct voltage of 5,5 volts. however in some cases there is no trimpot, but instead only some
Re: [vintagesynthrepair] E-mu Emulator III
2015-02-24 by JAMIE logan
epr electronics are the emu repairer i have replaced the psu before with a switchmode version from rs the voltages 12/-12/5v/0v the psu is also used in the
E-mu Emulator III
2015-02-20 by NoëlBuhagiar
Hi... have been given an Emulator III with a removed SCSI drive but owner said it worked loading OS from floppy. When I checked it it did not work and LCD had
Update: more info about Korg Micropreset M500 problems
2015-02-20 by Malte Rogacki
As I expected: The problem was a broken trace due to a leaked cap. Cap exchanged, trace repaired, presets work. Looking through ebay it seems that many of the
more info about Korg Micropreset M500 problems
2015-02-19 by Malte Rogacki
I ve gotten another M500 on my desk now. Main problem: three of the woodwind presets don t work (wood 2, 4 and 16), everything else looks mostly ok. Close
RE: [vintagesynthrepair] Roland XP-80 Display Issue
2015-02-19 by Hamblin, Scott
I suspect it’s the same problem as others in the series. A surface mount capacitor fails, and a voltage that controls the contrast fades with it. Not for a
E-mu Emulator III
2015-02-19 by NoëlBuhagiar
Hi... have been given an Emulator III with a removed SCSI drive but owner said it worked loading OS from floppy. When I checked it it did not work and LCD had
Roland XP-80 Display Issue
2015-02-16 by Samuel Adams
I m about to acquire a Roland XP-80. The board is in decent condition however the lcd display is fading. Is there an easy way for a non-techie to remedy
Re: roland jx-3p huhhh?
2015-01-30 by sexysynthgirl@...
BR, Didn t get a chance to go through the list until now. here s what I ve got. all 32 LED/lamps on the top panel, (under the music stand bar) stay
Roland JV1010 fault in expansion board
2015-01-22 by marcusguita@...
Hi everyone! I have a JV1010 whose expansion card is not working. After JV testing mode, I saw the ERR 8. The service manual refers to a problem in the IC6
JD-800
2015-01-21 by memestudio@...
Hello, I have had some contact problems with the musical keyboard of my JD-800, so I decide to replace the keyboard contact board. I found the part on ebay and
Roland JV1010 fault in expansion board
2015-01-20 by marcusguita
Hi everyone! I have a JV1010 whose expansion card is not working. After JV testing mode, I saw the ERR 8. The service manual refers to a problem in the IC6
korg wavestation won't start
2015-01-19 by fainardi83@...
hello all i have a strange problem with my korg wavestation when i power it up the logo korg appear then disappear and appear etc .... i try the command 4 +
Re: SCI Pro One oscillator range won't go low and extremely long warm up
2015-01-05 by Gregory Cox
Howdy folks, Shortly after sending a message to the group I ended up determining the problem was indeed flux residue on the top of the board. I found that
RE: [vintagesynthrepair] Digest Number 2640
2015-01-05 by Tee Squared
Date: Sun, 4 Jan 2015 11:58:41 +0000 From: vintagesynthrepair@yahoogroups.com To: vintagesynthrepair@yahoogroups.com Subject: [vintagesynthrepair] Digest
Re: [vintagesynthrepair] Korg 01/w hissing.
2015-01-02 by Roger J
Continued, Hiss is typically shot noise, it is random and white. Typically shot noise comes from ICs and transistors, rarely resistor or capacitors. Since it
Re: [vintagesynthrepair] Korg 01/w hissing.
2015-01-02 by Roger J
There are very parts that can cause all audio out to have hiss. And this will be a single part in common to all. HISS is typically sh Sent from my ASUS Pad
Re: roland jx-3p huhhh?
2015-01-02 by sexysynthgirl@...
BR ichdar, synthwookie, thank you. Yes I ve been coming back and checking the thread every few days. today I finally found your followups. I m going to spend
Korg 01/w hissing.
2015-01-02 by xp_sucks@...
Hello all. Greetings and a happy New Year. The New Year holidays have given me some more time to investigate my 01/W however its not back yet. The story so
Re: roland jx-3p huhhh?
2014-12-31 by sounddoctorin@...
PS I try to accumulate all repair tips specific to a unit on the SD Synth Information Resource http://www.sounddoctorin.com/synthtec/synth.htm SD Synth
Re: roland jx-3p huhhh?
2014-12-31 by sounddoctorin@...
First article on top. Is the group moderator active? I posted a week ago and I still don t see anything. Anyway JX-3P is a pretty straightforward synth
SCI Pro One oscillator range won't go low and extremely long warm up time
2014-12-28 by Gregory Cox
Hello, I’m trying to figure out this cursed Pro One I accepted for repair. I’ve brought it back from death and have sorted out all the problems it had
Re: Logan String Melody
2014-12-25 by sounddoctorin@...
The logan should be in my database but I m not sure if it is..nope can t find it. I should have gotten the info while I was working on one. I did a video of
Siel DK600 issue..this is a WEEIIRRD one...
2014-12-25 by sounddoctorin@...
I have this thing sold. It worked swell but as has been the custom for I don t know how long..when I get it tested one final time it doesn t work. Sounded
Re: roland jx-3p huhhh?
2014-12-24 by ichdarsyahhasibuan@...
Suzy, i m sorry for the late response, and i thought it was a keyboard engaged instead of panel switch engaged. The CN8 & CN9 connector disconnection is only
Digisound modular bracket
2014-12-20 by Terje Winther
Hi, I have some digisound modular modules, and I need to re-attach the PCBs to the front panels. Any idea where i might find some of these brackets, or some
Re: roland jx-3p huhhh?
2014-12-18 by sexysynthgirl@...
BR Ichdar, Thank you for your attention. I unplugged CN8 and CN9 and the result was the same... All the buttons on the top panel are illuminated. Does that
Re: roland jx-3p huhhh?
2014-12-17 by ichdarsyahhasibuan@...
to spot the source of the problem, you can try this first, disconnect the the keyboard connector on mainboard CN8 and CN9 (from main board to keyboard unit).
Tr : Sub 37 | Modulation & Sequencing
2014-12-15 by boris dumery
Hi there just a small video about one of the latest product from MOOG music instrument; MOOG PHATY 37 If you don t trust this e-mail, you can also have a look
Re: roland jx-3p huhhh?
2014-12-15 by sexysynthgirl@...
Bo, Dennis, Grant. You guys are amazing! I realize I didn t give you much to go on.. Grant in this case it isn t the physical alignment of the buttons. The
Re: roland jx-3p huhhh?
2014-12-11 by Grant B
You mean the buttons are all physically pressed? Could be PCB out of alignment with front panel or something gooey stuck in them like Coke?
Re: roland jx-3p huhhh?
2014-12-10 by Dennis Matana
Hi i had the same problem...you mean all leds are lighting up? swap out ic35 74LS27 it fixed my problem. This ic controls the r/w line of the ram get back to
Re: roland jx-3p huhhh?
2014-12-10 by b_dk2001@...
Hi Sexysynth, Congrats on your Roland JX-3P. Wonderful synth and same generation as the Junos, but with two DCOs per voice. A bit more difficult to edit the