DAC Hifidiy Olympic PCM1798 assembly and problem

[mati1979]

Hi, from Argentina, i speak english not very well, im sorry

I have bought a Kit - DAC Hifidiy PCM1798 olympic version -
Someone has tried this kit ?

the kit comes with manual very synthesized
I dont understand a transformer volts,
Schematic Transformer:





i have connected to 220v : >>





when i connect to 220V, a Transformer make noise, a tube lights but... strong light... in 10 seconds a fuse cute and transformer burn,,smoke mell

Hifidiy say: " yes , it can work with 220V , the transformer is from 110 to 220V , I think may be you can check the attachment about the connection , may be you made a mistake , connect the wrong line , please check , anything can contact me, "

The DAC worked 10 seconds ,, but then see smoke.
The connection transformers its ok ?

Thank you and im sorry. I have another picture large.

[SoNic_real_one]

You need to connect BOTH of the 115V in SERIES WITH PROPER POLARITY. They have a "beginning" and an "end".
The way you connected the transformer damaged it - you applied 220V on just one 115V coil!
And you did solder in short-circuit the second coil - that is even worse for the transformer!!!

Connection should be something like RED - BLACk on 220V and BLUE - GREEN toghether. Altough, I am not sure if that's the proper polarity, it could be RED-GREEN to 220V and BLUE-BLACK toghether.
Vendor SHOULD tell you the correct connection for 220V (one of the two above), because only him knows the way the windings are polarized.

[mati1979]

Thank you Sonic!
please, could you draw me a pic please ?
you can try with paint.

im thinking about what to do now ?

a transformer burned...and a PCB components
maybe burned many components ?

maybe i can try with another kit (without chassis) u$150 , transformer u$25

or i can send to China Manufacture my kits without chassis
for u$50 shipping and they can check my kit burned and then u$50+ for shipping return to argentina?

[SoNic_real_one]

Components are probably all right... You can try buying another transformer from the same guys (with proper schematics how to connect). Or rewind (rebobinar) this one. I am sure you have shops that can do that there.

[Mayday]

Could you post a better picture of the label on the transformer?

Windings are usually marked with a dot or something to show polarity.

[mati1979]

Originally Posted by Mayday

Could you post a better picture of the label on the transformer?

Windings are usually marked with a dot or something to show polarity.

[Mayday]

From what I can see, blue and green should go to mains, and black and red soldered together.

[mati1979]

Originally Posted by Mayday

From what I can see, blue and green should go to mains, and black and red soldered together.

sure ? many friends say in serie:

Red + Black >>>> 220V

(Blue + greend solded)

[syklab]

According to the chinese label on the RCore:
P1 Red. -Blue
P2 Greed.- Black
Looks like you should connect Blue and Green together
the Red and Black connect to your main AC inlet.

[Mayday]

Sorry, might have gotten it backwards.

I believe syklab is correct.