Yahoo Groups archive

Casio CZ/ VZ/ FZ - Pro Series

Index last updated: 2026-04-28 22:42 UTC

Thread

Omron Relays For Casio CZ-1

Omron Relays For Casio CZ-1

2013-06-08 by Paul

I would like to replace the old Omron relay myself as it looks like an easy like solder job but it seems the original Omron G2VN237PKL 5VDC relay is out of production. Would this work with wire leads added so it fits the circuit board?
 http://www.digikey.com/scripts/DkSearch/dksus.dll?pv1410=54&k=omron+g5v-2+dc5&mnonly=0&newproducts=0&ColumnSort=0&page=1&quantity=0&ptm=0&fid=0&pageSize=25
  Thanks,
     Paul T

Re: [CZsynth] Omron Relays For Casio CZ-1

2013-06-10 by gordon@...

On Sat, Jun 08, 2013 at 06:46:55PM -0000, Paul wrote:
>  I would like to replace the old Omron relay myself as it looks like an easy like solder job but it seems the original Omron G2VN237PKL 5VDC relay is out of production. Would this work with wire leads added so it fits the circuit board?
>  http://www.digikey.com/scripts/DkSearch/dksus.dll?pv1410=54&k=omron+g5v-2+dc5&mnonly=0&newproducts=0&ColumnSort=0&page=1&quantity=0&ptm=0&fid=0&pageSize=25
>   Thanks,
>      Paul T

As long as the coil voltage and current are about right, it'll be fine.  You could even just link the relay contacts out and not have the switch-on thump muting.

-- 
Gordonjcp MM0YEQ

Re: Omron Relays For Casio CZ-1

2013-06-10 by k9k9dog

hi Gordon, 
offtopic(soz, folks)
------------------------------------------------------
could you take a look at some schematics for me? it is 
a farfisa partner 15 removed the main keyboard. i want 
to do something with the drum voice board.

here's the docs+photos:
https://www.box.com/s/6ps851rmm8r1fqt0yf03

all pages are here, i think page2 is the voice board. 
i'd hope to do something funky with it and get a 
multi-out analogue drum module, if poss', with gate trigs 
in, and adjustable params.
(there is also the old preset pattern sequencer, wondering 
if anything could be done with that)
next stage is to power it up and try to get a sound out of.
12v 1A?DC? i can post all this on circuitbenders as a more 
suitable place for discussion.

(everyone help yourselves to this ;) )
-----------------------------------------------------------
cheers
D

--- In CZsynth@yahoogroups.com, gordon@... wrote:
Show quoted textHide quoted text
>
> On Sat, Jun 08, 2013 at 06:46:55PM -0000, Paul wrote:
> >  I would like to replace the old Omron relay myself as it looks like an easy like solder job but it seems the original Omron G2VN237PKL 5VDC relay is out of production. Would this work with wire leads added so it fits the circuit board?
> >  http://www.digikey.com/scripts/DkSearch/dksus.dll?pv1410=54&k=omron+g5v-2+dc5&mnonly=0&newproducts=0&ColumnSort=0&page=1&quantity=0&ptm=0&fid=0&pageSize=25
> >   Thanks,
> >      Paul T
> 
> As long as the coil voltage and current are about right, it'll be fine.  You could even just link the relay contacts out and not have the switch-on thump muting.
> 
> -- 
> Gordonjcp MM0YEQ
>

Re: [CZsynth] Omron Relays For Casio CZ-1

2013-06-10 by Music Man

So excuse my ignorance but would you please educate me on the function of this particular relay. What does it do in the cz and why are you replacing it?. Is this something I need to look into in the future as well?
I appreciate your time.


Sent from my iPhone

On Jun 8, 2013, at 2:46 PM, "Paul" <paul.krull@...> wrote:

> I would like to replace the old Omron relay myself as it looks like an easy like solder job but it seems the original Omron G2VN237PKL 5VDC relay is out of production. Would this work with wire leads added so it fits the circuit board?
> http://www.digikey.com/scripts/DkSearch/dksus.dll?pv1410=54&k=omron+g5v-2+dc5&mnonly=0&newproducts=0&ColumnSort=0&page=1&quantity=0&ptm=0&fid=0&pageSize=25
> Thanks,
> Paul T
> 
> 


[Non-text portions of this message have been removed]

Re: [CZsynth] Omron Relays For Casio CZ-1

2013-06-11 by Paul Krull

Relays are found in many organs and synths and act as a buffer or mute on power up and down so you don't get big audio spikes or thumps that can damage gear. Relays have a limited life span so like batteries they will need to be replaced. Unfortunately, the gear will still continue to work but the audio will be compromised in a variety of ways: big noise floor; low output; erratic or distorted output and it will sound bad until the relay is replaced or bypassed. In the case of my CZ-1 it's fully functional but has a weak output and a big noise floor and just doesn't sound very good which I can clearly hear since it's sitting next to a CZ-5000 which is loud, punchy and sizzling although a little noisy at the moment with the ADC offset or whatever it is out of adjustment. I watched an organ tech install a new relay in my Lowrey C500 and he explained the purpose and design and the results afterwards were very pronounced. There was a huge boost in volume
 and clarity and frequency response. I've already ordered a couple Omron G5V-2-DC5s so I'll be replacing mine like all the failed batteries I'm coming across lately. You can just bypass the circuit and live with the thumps and noises but in some cases that's not a good idea.
  PT


________________________________
Show quoted textHide quoted text
 From: Music Man <studio1usa@...>
To: "CZsynth@yahoogroups.com" <CZsynth@yahoogroups.com> 
Sent: Monday, June 10, 2013 2:55 PM
Subject: Re: [CZsynth] Omron Relays For Casio CZ-1
 

So excuse my ignorance but would you please educate me on the function of this particular relay. What does it do in the cz and why are you replacing it?. Is this something I need to look into in the future as well?
I appreciate your time.


Sent from my iPhone

On Jun 8, 2013, at 2:46 PM, "Paul" <paul.krull@...> wrote:

> I would like to replace the old Omron relay myself as it looks like an easy like solder job but it seems the original Omron G2VN237PKL 5VDC relay is out of production. Would this work with wire leads added so it fits the circuit board?
> http://www.digikey.com/scripts/DkSearch/dksus.dll?pv1410=54&k=omron+g5v-2+dc5&mnonly=0&newproducts=0&ColumnSort=0&page=1&quantity=0&ptm=0&fid=0&pageSize=25
> Thanks,
> Paul T
> 
> 


[Non-text portions of this message have been removed]



------------------------------------

Yahoo! Groups Links



[Non-text portions of this message have been removed]

Re: [CZsynth] Omron Relays For Casio CZ-1

2013-06-11 by jammie

anti thud protection on switch on

the omron are nown to fail

the panasonic equivelents are better

but you can bypass them with hard wired links and on switch on you just have your mixer for that channel set low
Show quoted textHide quoted text
  ----- Original Message ----- 
  From: Music Man 
  To: CZsynth@yahoogroups.com 
  Sent: Monday, June 10, 2013 10:55 PM
  Subject: Re: [CZsynth] Omron Relays For Casio CZ-1


    
  So excuse my ignorance but would you please educate me on the function of this particular relay. What does it do in the cz and why are you replacing it?. Is this something I need to look into in the future as well?
  I appreciate your time.

  Sent from my iPhone

  On Jun 8, 2013, at 2:46 PM, "Paul" <paul.krull@...> wrote:

  > I would like to replace the old Omron relay myself as it looks like an easy like solder job but it seems the original Omron G2VN237PKL 5VDC relay is out of production. Would this work with wire leads added so it fits the circuit board?
  > http://www.digikey.com/scripts/DkSearch/dksus.dll?pv1410=54&k=omron+g5v-2+dc5&mnonly=0&newproducts=0&ColumnSort=0&page=1&quantity=0&ptm=0&fid=0&pageSize=25
  > Thanks,
  > Paul T
  > 
  > 

  [Non-text portions of this message have been removed]



  

[Non-text portions of this message have been removed]

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.