Installing new battery

As I removed the old battery and resistor R91 in advance, I'll cut directly to the installation...
When installing the new battery I used OldCrows procedure.
The following parts where needed for this step:

• 1N4148 diode
• CR-2032 battery
• batteryholder for CR-2032 (max 20mm)

First I had to remove the KLM-367 board from the synth.

The batteryholder didn't fit the soldering holes, so I had to extend and bend the legs on the

holder.
The 1N4148 diode is also seen on the picture, right next to the batteryholder.







I used some hot glue to secure the holder.


Now I just had to pop in the new CR-2032 and the job was done.

Introduction

My name is Peter Hjulskov. I work as a consultant (java-programmer).

In my sparetime I like to mess around synths -mainly analog stuff.

I'm not good at playing, but I love making noises and listening to the warm filters of an analog synth.

In school I took an electronics-course, which comes in handy when fooling around with old synths.

My current(*) and past gear :

• Roland U-20 (yeah it's not analog -mistake)
• 2 Korg Poly-800
• 3 Roland Alpha Juno 1*
• Roland Alpha Juno 2
• 2 Roland PG-300* (Programmer for Juno1+2)
• Kawai K1 (another digital synth)
  
• Korg Mono/Poly
• 2 Korg PolySix* (both restored by me -one being restored)
  
• SCI SixTrak
• Roland SH-09
• Roland Juno-106
• Boss DR-110 (analog drummachine)
  
• Oberheim Matrix1000
• Casio CZ-101* (in pretty bad shape, it's actually dying...)
  
• Korg EX-800* (with Moogslayer mod, FM-mod and VCF Ext-in -done by myself)
• Korg DW-8000*
• Roland R-5* (digital drummachine)
• Yamaha TX-7* (tabletop Dx-7)
• Yamaha A-3000 Professional Sampler*
  

Anyway this blog is about the Korg PolySix I've just bought.
It's pretty beaten-up and need a lot of TLC....




First thing I did was checking if the backup-battery had leaked. My first PolySix was a very bad case of leaking batteryacid -so it was with a litte fear I opened the case...

Phew!... -no acid! :-)


Just a litte corrision on the battery.

Time to remove the old battery (before it explodes).
I used a Dreml tool to cut the battery from the board. On second thought I wouldn't recommend using a Dreml due to the danger of leaking battery.

Cleaning the board, using a q-tip and alcohol.

Now I can relax, knowing that the guts of my PolySix are quite healty.

The issues to fix on my PolySix so far is

• Installing a new lithium battery Old Crow's PolySix battery repair.
• Installing new keys
• Cleaning the keyboard
• Installing new Tact switches
  

Next thing to do is ording parts...