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.
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:
An externally hosted image should be here but it was not working when we last tested it.
i have connected to 220v : >>
An externally hosted image should be here but it was not working when we last tested it.
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.
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.
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.
Last edited:
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?
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?
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.
Could you post a better picture of the label on the transformer?
Windings are usually marked with a dot or something to show polarity.
Windings are usually marked with a dot or something to show polarity.
Could you post a better picture of the label on the transformer?
Windings are usually marked with a dot or something to show polarity.
An externally hosted image should be here but it was not working when we last tested it.
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)
An externally hosted image should be here but it was not working when we last tested it.
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.
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.
ok now i need order a new transformer to china.
Ask: in the most cases, when transformer burn and fuse cut,
a PCB components continue working ?
i dont know if buy a new kit or only transformer with new tube.
Ask: in the most cases, when transformer burn and fuse cut,
a PCB components continue working ?
i dont know if buy a new kit or only transformer with new tube.
and another questions, when i bought a kit to China, i asked them to weld small pieces.
Im seeing now, many welds touch with the next leg. this is normal ? or not is a problem ?
pic:
Im seeing now, many welds touch with the next leg. this is normal ? or not is a problem ?
pic:
An externally hosted image should be here but it was not working when we last tested it.
and another questions, when i bought a kit to China, i asked them to weld small pieces.
Im seeing now, many welds touch with the next leg. this is normal ? or not is a problem ?
pic:
An externally hosted image should be here but it was not working when we last tested it.
Look at the datasheets for those IC's, there you'll see which if any pins should connect.
But that does look sloppy.
im sorry, i dont understand , welding is fine ?
I don't know if it's on purpose.
Pin13 and 14 are connected, that's Uout and Cout.
Pin24, 25 and 26 are connected, that's VDD, SCKO and FSOUTI.
I really can't tell if they are to be connected like that with solder.
I suggest you e-mail and ask the seller.
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