Strand LD 90 Error code

[GED]

Hi all, I’ve just replaced the controller unit on a Strand LD90 (including swapping the EEPROM from the old unit to the replacement unit)

when turned on I get the error message:

error 06023

the rest of the info is AN RECTIFY=4.2v.

Does anyone know what it means.

thanks

[jonhole]

On 4/5/2024 at 8:21 PM, GED said:

error 06023

Was it error 06032?

The service manual talks about that error on page 44 (PDF page 52) - https://www.theatrecrafts.com/archive/documents/ld90servicemanual.pdf

[DrV]

The description for code 6023 is Analogue Rectifier Failed. I think this refers to the Analogue Precision Rectifier which takes all of the multiplexed analogue inputs into the processor chip. This is IC 40 etc. and this suggests it has failed its self test. Looking at the schematic it could be the chip or its associated passives, or the dummy load that the processor puts on it during self test. I can probably repair it for you and I have some spare processors here. Why did you swap it in the first place?

By the way, if Kazeja chimes in that I've got it all wrong then listen to him, not me, as I've never actually seen that fault! Just working it out from the fuzzy schematic.

[GED]

Thanks DrV

I swapped the control unit because the previous one failed. 

Your comments have given me a way forward thanks

[DrV]

21 minutes ago, GED said:

Thanks DrV

I swapped the control unit because the previous one failed. 

Your comments have given me a way forward thanks

If you need the original processor repaired then let me know.

[steadals]

On 4/12/2024 at 8:24 PM, DrV said:

If you need the original processor repaired then let me know.

Hi, Just been checking with the Dimmer Pack. It is still showing the error code of 6023, with AN rectify 4.3v > Lo/Hi 2.0/4.1v

Upon powering up firmware, V3.4 and three 8's show then the error code. All three Led (L1,L2,L3) are lit, when the lighting desk is powered up the A Mux does not light up. Is this more than a processor error?

[DrV]

I assume you are also at Halifax Playhouse and we are talking about the same system as your colleague, Ged. The power up display is normal. 888 means you have 3 x 8 channel modules installed (most common config for these units). The error code after that I explained above. I don't think the mux lights come on until the self test has completed although I could check tomorrow. I suppose I could simulate the fault code you're seeing but frankly there's not a lot of point as it'll need to be fixed anyway. As I said, I'm happy to look at it and as a last resort I do have some spare processors. From the original post it sounds as though you already have two processors so what was the reason for the initial swap out?