DSP4500 / Problem in Internal RAM

Ok I tried your suggestions. I removed the user memory card from the slot and just checked what that would do..

but still got as far as the point descibed above …then I rebooted and held down the “8” key

and it worked ..this brought up the “welcome to the DSP 4500” menu page and then access to all menus from there.

I wonder could the bad battery in the memory card cause this “back checksum” error message in the interanl RAM?

by clearing all” what does that do for the “bad checksum” or “Internal RAM” problem given in the error message?

Are you saying there is a battery for the Internal RAM also that lasts 8 /10 years?

if they are hard to find…where might I find one as a back up ?

I’ll let you know if something else happens in th next few days..

Thanks very much for your help!

J Bell

One more observation:

Now, when i boot up. it gives me the one error message in boot up that says:

“problem in 4500 presets – bad checksum”

then gives the “continue” button to push

when pushed…it now goes to the “welcome to the 4500 ” menue page after “clearing all”

do you think the remaining problen could be bad battery for the Internal Ram?

After booting up Logic X and testing the 4500 through the whole set up again

the 4500 boots, gives the error message – “problem in 4500 presets – bad checksum

but then gives the “continue” button to push.

ordinarily in the case I could push the continue button

and at least the presets worked

now a new situation

There is no sound signal or sign of any sound moving the meters on the 4500

I do see one very important reason for this

I have the Eventide routed through the back of TC Electronic Ex. soundcard

using sp/dif cables..and set up for this in the TC panel

On Logic I have them routed through the channels 15 and 16

it usualy shows up saying “15 – small room- (4s snare chamber ) and 16 Large Room (3.9 Prince Large Hall )

I notice that the channel 16 large room (3/9 Prince Large Hall ) does not appear in the menu..only channel 15

First thoughts are this might be a problem in the cable even

Nteh question is could something have happened  after “pushing the “8” button to “clear all”

or maybe the problem is in the Eventide…In any case if you have any further suggestions on this I would greatly appreciate it

any suggestions will narrow down where to isolate the problem

so that at least i can tell a repaier man what your analysis is. Many thanks once again!

j Bell

apologies for so many posts..

one more thing I see

when I look under the global Routing button on Eventde

there is no sign of the sp/dif connection…I’m checking the manual now

ok once again, I just checked the manual and under set up noticed that when I

“cleared all” it also cleared the routing set up.

now there is signal

I still get the error message at boot up

“problem with 4500 presets -bad checksum

but…presets work even though I’ve noticed sometimes

that when i change to otehr oresets I sometimes get feedback.

I have one more question..hope you have patience

the question is about the best way to route the 4500 through logic using virtual plugins

as I mentioend it is being routed through s[/dof bus channels 15 and 16

that seem to automatically show up in aux tracks when a new track is made

but there is also the option to route through assigning busses 1 and 2 separately

on aux tracks that rae routng the sp/dif 15 and 16 of the Eventide

I do notice sound quality differences and wonder what is the best way ti route the 4500

in logic ? is there a preferred way for best sound quality? Thanks again very much

U guess the outstanding question still is…why do I get the rror emssage

saying :problem with 4500 presets – bad checksum”

is it an Internal battery issue ( battery going bad )

and if so where may I look for this hard to find battery?

Thanks again!

JBell

I

qhwn I first got it..originally the 4500 was shipped a long ways…from California to Moscow and then by train down to Crimea.

when it arrived…the faceplate where the rackmount screws go in was bent back at a 45 degree angke s

whatever hading it got to bend a 1/8″ inch steel plate of steel must have been severe. We thought it woukd work at all when it booted up

but it worked. There may be some dammage unknown as of yet..but I would like to takw the top off sometime and check

if there is an actual slot when the battery ir ram goes in this very well could have been loosened in the shipment..

If you culd kindly tell me where to look for it. These ebentides will be sued 20years form now as there is no comoarison to

pjugun reverb of other effects..I would buy the battery in America and just ahve it sipped to my brother.

many thanks for support. J Bell