Lexicon 224 v4.4 Start-up Error Codes

[dbbubba]

Does anyone here have a list or know what the startup error codes mean o a Lexicon 224 v4.4?
Don't tell me to call Jim Fabiano.

I am getting E92 at powerup.
The unit comes up in a strange mode with too many LEDs lit on the LARC.
After you hit a few buttons it appears to function normally except the "ovfl" LED stays lit.
The readout seeems to be pulsing a bit more than normal.

The Ni-Cad batteries on the OPT (option) board are dead as a doornail.
This only stores programs you have created and the unit should work w/o them powering up.

I have cleaned and seated most of the socket mounted ICs.
I have cleaned all of the edge connectors.

I have another functioning unit, but it is a v4.3.
I am going to start swapping cards.
I also have a another completely non-fuctional v4.3 that needs a whole new CPU board.

Anyone have the error codes handy?

Danny Brown

[dbbubba]

MAN!!!

I did a search and after I read the WHOLE THING I realized I was reading my own post from a few years ago!!!!!!!!

This F-ing 224 stuff is making me CRAZY!

[Jim Williams]

E92 indicates a high order byte failure in the d-mem pcb, most likely a defective memory chip. The defective memory chip can swapped with the lowest order memory chip, U1. This increases the noise floor by +6db but allows immediate operation if needed. Sometimes contaminated sockets are the cause, the only way I've rectified that is to replace all of them with Milli-max machined sockets with a Hakko 808 tool.

Jim Williams
Audio Upgrades

[Jim Williams]

Originally Posted by dbbubba

Does anyone here have a list or know what the startup error codes mean o a Lexicon 224 v4.4?
Don't tell me to call Jim Fabiano.

I am getting E92 at powerup.
The unit comes up in a strange mode with too many LEDs lit on the LARC.
After you hit a few buttons it appears to function normally except the "ovfl" LED stays lit.
The readout seeems to be pulsing a bit more than normal.

The Ni-Cad batteries on the OPT (option) board are dead as a doornail.
This only stores programs you have created and the unit should work w/o them powering up.

I have cleaned and seated most of the socket mounted ICs.
I have cleaned all of the edge connectors.

I have another functioning unit, but it is a v4.3.
I am going to start swapping cards.
I also have a another completely non-fuctional v4.3 that needs a whole new CPU board.

Anyone have the error codes handy?

Danny Brown

I also have some spare 224 pcb's available, a computer pcb, a d-mem, T+C and D/A pcb's.

Jim Williams
Audio Upgrades

[Terry McInturff]

Jim Williams rocks!

[dbbubba]

Jim... did you see the email I sent you?

The E92 was an old problem.

I get E31 and E91 now.
I guess that E91 is a memory chip problem, too.
This just crept up as I was working on the thing yesterday.

I am most concerned about the E31 code because that came up after I re-seated the chips in the T&C board.

Of course the "CALL" button not working is the main problem.
I have to get back to where I was before the error codes came up to deal with that.

Thank God I have two machines because I put two chips in backwards while being distracted on the phone.
That T&C board has lot's of errors now.
The chips are all oriented correctly now, but I must have toasted one.
I didn't mark them either, so I am not 100% percent sure which ones they are!

[Robbie Ost]

i am getting an ESF message (error) after startup!
any ideas?
thanks

[Robbie Ost]

or maybe its E5S ?