Finally chosen a power supply! Siglent vs Rigol :-)

[tautech]

First, can you try this reset to factory default:

Hold Fine and power ON and release Fine when the boot process has ended.
Does the CC issue remain ?


You said earlier you'd downgraded the FW. Did you return it to the latest version 1.01.01.02.05 ?


Operating voltage setting is close enough and shouldn't impact at all on CC.

[carl0s]

First, can you try this reset to factory default:

Hold Fine and power ON and release Fine when the boot process has ended.
Does the CC issue remain ?

Yes the problem remains. I can confirm the reset worked, because the stored previous-values are cleared. I tried the procedure twice to be sure.

You said earlier you'd downgraded the FW. Did you return it to the latest version 1.01.01.02.05 ?


Operating voltage setting is close enough and shouldn't impact at all on CC.

Yep I've returned it back to 1.01.01.02.05

[PA4TIM]

Could it be they soldered in the (duo color ? ) led the wrong way ?

[tautech]

OK, bugger !
If it's getting late over there just check what I come back with in the morning.
I'm gunna check CC functionality in this unit I have and if what you see isn't right I'll send some emails and come back with advice on what to do next.

Could it be they soldered in the (duo color ? ) led the wrong way ?

Great question !

@carl0s
Can you give us all but the last couple of digits of the SN# ?

[carl0s]

Could it be they soldered in the (duo color ? ) led the wrong way ?

but the CC/CV in the top right of the TFT display also doesn't change.

[carl0s]

OK, bugger !
If it's getting late over there just check what I come back with in the morning.
I'm gunna check CC functionality in this unit I have and if what you see isn't right I'll send some emails and come back with advice on what to do next.

Could it be they soldered in the (duo color ? ) led the wrong way ?

Great question !

@carl0s
Can you give us all but the last couple of digits of the SN# ?

I don't tend to go to bed too early :-)

I have bought this from a good UK distributor so I have no worries that I'll be looked after properly with warranty, but at the same time it is a curiosity and would be interesting to know what the cause is. Even better would be if it was something simple and they'd let me open it up and fix it with their guidance. I'd get some satisfaction out of that :-)

S/N: SPD3XHBX2R16-- (left last two off like you asked)

Hardware version: v3.0

[carl0s]

I have another question:

What does the rotary-encoder push/click do? I can't see any function that uses it, yet it's there. It's a push button. They could have used it either for Timer On/Off when you have it highlighted, or to move to the next element when dialling in stuff. Actually the only thing I can see that it does is confirm the IP address settings if you push it while in one of the ip/netmask/gateway fields.

Ooh nevermind I see, it gives you a special emergency firmware upgrade power-on thing Oh, and the file store/recall.

[tautech]

Grrrr, no your unit is not right ! 
I have a factory fresh SPD3XHBX2R17** and CV/CC modes work outta the box.

Can you handle this OK with your supplier ?
Let me know if I need to send emails.

[carl0s]

Grrrr, no your unit is not right ! 
I have a factory fresh SPD3XHBX2R17** and CV/CC modes work outta the box.

Can you handle this OK with your supplier ?
Let me know if I need to send emails.

:-) Yes I've sent them an email. I'm sure they'll be good.
Thanks for all your help though and checking another unit 

[Mr. Scram]

Are these Siglent units not the same as GW-Instek GPD-3303S, but with a fancier display?