I have an old Ensoniq ESQ-1 synth that I bought back in the early nineties and I loved it so much that I never parted with it. However, sadly it has been sitting in a closet gathering dust for over 15 years. I recently pulled it out because I really wanted to use it again and I turned it on to find that I need to replace the battery on the thing. Unfortunately the battery is so low I lost all my old patches and sequences. (sigh) Not one to dwell on that sort of thing I set out to change the battery based on an old post I found online called "ESQ-1 Battery Replacement". This page is pretty helpful but as I found out isn't indicative of all ESQ-1 versions. So for the small group of you out there who still have working ESQ-1s and want to change the battery I thought I'd point out somethings that I found. I'm not new to soldering but I'm definitely a noob when it comes to fixing & doing maintenance on synths...
1.) Do not buy a replacement battery on E-bay searching for your synth type. You will get ripped off. The Ensoniq uses a 3V Lithium 1200 ma, 2/3A cell that can be bought from an electronics store for .75 to $1.50. If you buy one on E-bay be prepared to pay $12 plus shipping!
2.) Open your ESQ-1 before you buy your battery. The battery shown in the ESQ-1 Replacement page was a lithium battery without solder tabs. So I bought a battery like the one on the page. When I opened my synth up I discovered to my dismay that my synth differs than the one in his picture and my battery does indeed have solder tabs. So I need to purchase a new battery with solder tabs.
Here are some good resources I have found on the net for the Ensoniq ESQ-1 and general keyboard maintenance/ repair.- GearSlutz has a great page that is dedicated to batteries on a variety of synths. This is the place to go to find out what kind of battery you are going to need for alot of different types of synths. There are also links to instructions on how to replace them in many cases. Go HERE
- AllElectronics.com carries batteries, soldering irons, solder wick, solder suckers, etc. Everything you need to do maintenance and minor repairs.
So as I mentioned I haven't been able to replace the battery yet. I just ordered a lithium cell with solder tabs and should *hopefully* have that soon. The battery tabs on my Ensoniq are nestled in really close to where one of the cables attach via pins to the PCB. Obviously I'll remove the cable before de-soldering but I'm a little nervous about putting a soldering iron in that close proximity of the jack. (see pic)
Any advice on that would be much appreciated :)
Until next time... Over N Out.