cardinal cp600 terminal psu pinout

[soviet9922]

Hi guys,

Got one of this NOS cardinal cp600 terminals that are sold on ebay.
The unit was brand new and all in box so joy :D.
But the joy don't lasted, the power supply failed after an hour. Checked the primary and is open :'(
The psu says +5v +12v -12v on it so replacing the psu will not be easy.
The "manual" is like 6 pages and don't have any reference or pinout for the PSU.
Maybe someone knows what the pinout is ?.

 

[kb2syd]

Hi guys,

Got one of this NOS cardinal cp600 terminals that are sold on ebay.
The unit was brand new and all in box so joy :D.
But the joy don't lasted, the power supply failed after an hour. Checked the primary and is open :'(
The psu says +5v +12v -12v on it so replacing the psu will not be easy.
The "manual" is like 6 pages and don't have any reference or pinout for the PSU.
Maybe someone knows what the pinout is ?.

Try using pinouts of the chips you can identify.
Ground will be easy.
+5v can be found by checking +vcc on the TTL logic.
+12 and -12 were probably for the UART.
I think the MC34018 is a speaker driver. If so, pin 16 should be v+ of between 6 and 11v - so maybe +12?

 

[soviet9922]

I was afraid to **** it up so pay a company to rewind the transformer.
The bizarre thing is that it works but the transformer like before got so hot that is melting alive it stinks to burning plastic and looks melty.
So now that it work got the pinout, replaced it for a pc power supply no more meltiness :D.
If is of use for anyone (the wonderfull draw is from the psu plug looking at the pins):



The colors are from the original CP600 psu not atx colors.
pin 1 GND (BLUE)
pin 4 -12v (yellow)
pin 2 - nothing
pin 5 +12v (red)
pin 3 +5v (white)