Description
This kit contains replacements for all the polarized (tantalum) capacitors, and all IC chips in the ARP 3620 Duophonic Keyboard.
If your keyboard has not yet been recapped or is broken this kit is an essential starting point in any repair. The original low quality tantalum capacitors were prone to shorting out and were easily damaged by transient voltage spikes when turning on and off the keyboard. This kit contains high quality electrolytic capacitors to replace these failed or failing capacitors and provide decades of stable operation. The original CMOS and op amps used in this keyboard are prone to failure. We find it a best practice to replace all these chips in this keyboard to fix issues it may be having and to prevent future issues from popping up as chips fail.
The LM301 op-amp is obsolete in through-hole form. Rather than sending sketchy or ancient “NOS” chips, we include new, genuine surface mount LM301s pre-soldered to a DIP adapter. Machine pin headers are included, and you will need to solder them onto the boards.
This product requires disassembly of the keyboard and soldering skills to install. Please contact us if you require installation services.
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