Talk:Casio CZ synthesizers

This page needs some information on the Casio VZ synths which were the final synths Casio produced. VZ-1,VZ-8M and VZ-10M. — Preceding unsigned comment added by 84.67.25.45 (talk • contribs) 23:49, 24 August 2005 (UTC)

Why was the CZ-1 removed from the page?

It is still in the Google cache, but disappeared a couple of revs ago. —The preceding unsigned comment was added by Jbrave (talk • contribs) 23:31, 24 January 2007 (UTC).

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CZ-1 memory backup battery replacement

Not sure if this is the appropriate place to put this, but as these synthesizers are getting on in years the memory backup battery has usually well exceeded its 10 year design life and may need replacement.

The original BR2032-1HM Lithium battery is a horizontally mounted type that is soldered onto the circuit board.

The Casio CZ1 service manual schematics/parts list (page 62) show a BR2032-1HM Lithium battery.

It is sometimes replaced by a CR2032 lithium cell (which has lower temperature rating and quicker discharge), combined with a horizontal 20mm cell holder (the HM part).

Easy to replace the battery: Just flip the old CR2032 cell out and slot another one in rather than desolder/resolder the BR2032-1HM. Quick and dirty solution, and probably a good quick fix to get your money and run if you are are servicing one for money. Beware the battery may fall out if the device is bumped, hence why Casio soldered the BR2032-1HM type in.

The '2032' is the dimensions of the battery - 20mm wide by 3.2mm high - same for both types of battery.

The BR is for a Lithium Polycarbon Monofluoride battery, and the CR is for Manganese Dioxide chemistry.

Self discharge for BR cells is far lower than CR types (BR=90% voltage left after 10 years), hence their specified preferred use in a 10 year backup environment by Casio in the Casio CZ-1.

The BR cells are rated at 3.0v 190mAh.

Both the BR2032 and CR2032 batteries are designed to be NON-rechargeable.

Don't forget to backup your settings before you remove the battery and restore them afterwards.

I hope this clears up any misunderstandings. Cheers... — Preceding unsigned comment added by 203.220.138.209 (talk) 13:02, 11 January 2019 (UTC)