Logitech Z906 Alternative Power Supply

[absinthes]

Hello guys. I have maden new PSU for z906.

You have to use 30-70v main amp voltage. I used 35v 10A.
Decoder, control panel and CPU voltages are 12V 1A, 5V 1A 3.3V 0.5A (1117IC)
I use 350W transformer. I rebuilt seconder spring.

Thats working perfectly.

Photos,
https://img.donanimhaber.com/upfiles/1635755/1c7af141-90af-4ba7-b5a5-dc0efad8e5ab.png
https://img.donanimhaber.com/upfiles/1635755/fd284f5a-6044-4993-b888-08cb46b1ca24.png
https://img.donanimhaber.com/upfiles/1635755/0fb089b1-8344-473c-88a9-d0ffa2d80ba4.png

[Rasz]

nice, still thats a lot of work for a 10% THD turd

[absinthes]

curtainly 

thanks for the commention

[ERprzezO]

Hello,

I have the same problem damaged the components on the power supply, I do not know if there is a sense to play in the repair, I would prefer to apply your solution with an alternative power supply. You write that the whole works well, could I ask for more photos, information, so that I could do the repair also in my set? It was the least useful to photograph the whole from the top and bottom so that I would know how to combine everything.

In poland I can not find a transformer with parameters, can an alternative be a power supply with the same parameters?

Power Supply:
http://sklep.cncprofi.com/zasilacz-impulsowy-36v-230v-350w-10a-cnc.html

I also have a question about the regulator, he is also not in the stores in Poland, I would have to draw from China or is it right? I am asking because there is no IC designation?

Voltage regulator:
https://pl.aliexpress.com/item/10pcs-AMS1117-3-3V-AMS1117-1117-3-3V-1A-Voltage-Regulator-LDO-SOT-223/32830638042.html?spm=a2g17.search0104. 3.9.7128f4388OVRq5 & ws_ab_test = searchweb0_0, searchweb201602_2_10065_10068_5726815_10843_10059_10884_10887_312_10696_100031_10084_10083_5726915_10103_10618_10304_10307_10820_10821_10302_528, searchweb201603_60, ppcSwitch_5 & algo_expid = d3f71029-56df-47c4-a732-564358fa6716-1 & algo_pvid = d3f71029-56df-47c4-a732-564358fa6716 & transAbTest = ae803_1 & priceBeautifyAB = 0

[Dinesh6252]

Hello guys. I have maden new PSU for z906.

You have to use 30-70v main amp voltage. I used 35v 10A.
Decoder, control panel and CPU voltages are 12V 1A, 5V 1A 3.3V 0.5A (1117IC)
I use 350W transformer. I rebuilt seconder spring.

Thats working perfectly.

Photos,
https://img.donanimhaber.com/upfiles/1635755/1c7af141-90af-4ba7-b5a5-dc0efad8e5ab.png
https://img.donanimhaber.com/upfiles/1635755/fd284f5a-6044-4993-b888-08cb46b1ca24.png
https://img.donanimhaber.com/upfiles/1635755/0fb089b1-8344-473c-88a9-d0ffa2d80ba4.png

i Have a question , can i use three separate power supplies for 46v , 12v  and 5 v ?

[coromonadalix]

yes you can

You connect the ground  together

[Dinesh6252]

Hello guys. I have maden new PSU for z906.

You have to use 30-70v main amp voltage. I used 35v 10A.
Decoder, control panel and CPU voltages are 12V 1A, 5V 1A 3.3V 0.5A (1117IC)
I use 350W transformer. I rebuilt seconder spring.

Thats working perfectly.

Photos,
https://img.donanimhaber.com/upfiles/1635755/1c7af141-90af-4ba7-b5a5-dc0efad8e5ab.png
https://img.donanimhaber.com/upfiles/1635755/fd284f5a-6044-4993-b888-08cb46b1ca24.png
https://img.donanimhaber.com/upfiles/1635755/0fb089b1-8344-473c-88a9-d0ffa2d80ba4.png

Are you sure , I can use more than 50v on HV+ line?  Because i have a 54 volt 70Amp. supply that i wanted to use.

[rop@m]

Can any one share the complete Pics of connectivity for SMPS for Logitech Z906

[lungliew]

have full procedure ?thanks

[Dinesh6252]

Are you sure we can use more than 50+v since the board contains 50v caps in connected to hv+ line?