DELTA ADP-200DFB Imac 21,5" 2009 Power Supply

[joaquinmjuan]

Hi, this is my first post on the forum, so if I have done something wrong, sorry.
Anyway, I was looking for this source schema, and can not find it .... I'll settle for one like it.
The source gave me quite the damage .... shorted bridge rectifier (HS1), two shorted output MOSFETs (Q1 and Q3), blown fuse .... and has something more, since I've replaced all, and psyche short, but only when plugging (short produces Q2).
The problem is that I have the schematic, nor datasheets of IC
Well, if anyone has experience in this type of sources, I would appreciate a little help much.

If I remove the MOSFET Q2, the short disappears.
I have also found that the pads of the diode D3, are grounded. If I remove the diode, does the same, but this diode I have measured out, and well.

Thanks in advance !!!

[stj]

Re: DELTA ADP-200DFB Imac 21,5" 2009 Power Supply

google-translate???

post in spanish so i can use a different translator!

[joaquinmjuan]

Re: DELTA ADP-200DFB Imac 21,5" 2009 Power Supply

Hola, este es mi primer post en el foro, así que si he hecho algo mal, lo siento.
El caso es que estaba buscando el esquema de esta fuente, y no lo encuentro....me conformo con uno parecido.
La fuente me la entregaron con bastante daño....el puente rectificador en corto (HS1), dos mosfets de salida en corto (Q1 y Q3), fusible quemado....y tiene algo mas, ya que he reemplazado todo, y sique en corto, pero solo al enchufar (el corto lo produce Q2).
El problema es que no tengo el esquema, ni tampoco datasheets de los C.I.
Bueno, si alguien tiene experiencia en este tipo de fuentes, os agradecería mucho una ayudita.

Si quito el mosfet Q2,el corto desaparece.
También he encontrado que los pàds del diodo D3, estan a masa. Si quito el diodo, hace lo mismo, pero este diodo lo he medido fuera, y está bien.

Gracias por adelantado!!!

[stj]

Re: DELTA ADP-200DFB Imac 21,5" 2009 Power Supply

Hello, this is my first post on the forum, so if I've done something wrong, sorry.
The case is that I was looking for the schema of the source, and I can't find it....I agree with one like it.
The source I gave it with enough damage to....the bridge rectifier in short (HS1), two mosfets of output in the short (Q1 and Q3), blown fuse,....and has something more, since I have replaced everything, and avoiding runout in short, but only to the plug (the short is produced by Q2).
The problem is that I don't have the schema, nor datasheets of the C. I.
Well, if someone has experience in this type of sources, I would greatly appreciate a little help.

If I remove the mosfet Q2,the short goes away.
I have also found that the pàds of the diode D3, are at mass. If I remove the diode, does the same thing, but this diode I have measured out, and that is good.

Thanks in advance!!!

so Yandex says.

[joaquinmjuan]

Re: DELTA ADP-200DFB Imac 21,5" 2009 Power Supply

¡¡¡THANKS!!!

[stj]

Re: DELTA ADP-200DFB Imac 21,5" 2009 Power Supply

can you post photo's?

[joaquinmjuan]

Re: DELTA ADP-200DFB Imac 21,5" 2009 Power Supply

If you tell me you need ..... photos and upload.
The problem is that I find no datasheets of IC, nor the scheme.

----------------

Si, dime que fotos necesitas.....y las subo.
El problema es que no encuentro ni datasheets de los CI, ni tampoco el esquema.


http://es.aliexpress.com/item/origin...mmendVersion=1

[joaquinmjuan]

Re: DELTA ADP-200DFB Imac 21,5" 2009 Power Supply

Hi, I have fixed the problem ..... had turned upside down the rectifier bridge. Typically, screen printing is left out, and the other side of the rectifier bridge, getting stuck to the heatsink. In this case, it is just the opposite, and not watch the polarity is marked on the plate, then put it wrong. Hence, Q2 is put in short.

In short, I replaced Q1 and Q3 that were in short, the rectifier bridge HS1 was short, and fuse F1.
The source, and operating normally.

Thank You !!


Spanish

Hola, ya he solucionado el problema.....había puesto al revés el puente rectificador. Normalmente, se queda la serigrafía hacia fuera, y la otra cara del puente rectificador, se queda pegada al disipador. En este caso, es justo al revés, y por no mirar la polaridad que viene marcada en la placa, pues lo puse mal. Por eso, Q2 se ponía en corto.

Resumiendo, He reemplazado Q1 y Q3 que estaban en corto, el puente rectificador HS1 que estaba en corto, y el fusible F1.
La fuente, ya funciona con normalidad.

Gracias!!

[soublek13]

Re: DELTA ADP-200DFB Imac 21,5" 2009 Power Supply

hola amigo juaquin disculpa la molestia queria preguntarte que componentes sustituiste es que yo tengo el mismo problema con esa misma fuente de alientacion de una imac, y te agradeceria mucho si me hisiera el favor de mandar una imagen de los componentes que tubiste que sustituir

ingles

hello friend apology bother juaquin wanted to ask you sustituiste components it is that I have the same problem with the same source alientacion a imac , and I greatly appreciate it if I hisiera please send a picture of the components sustituiste

[joaquinmjuan]

Re: DELTA ADP-200DFB Imac 21,5" 2009 Power Supply

hola amigo juaquin disculpa la molestia queria preguntarte que componentes sustituiste es que yo tengo el mismo problema con esa misma fuente de alientacion de una imac, y te agradeceria mucho si me hisiera el favor de mandar una imagen de los componentes que tubiste que sustituir

ingles

hello friend apology bother juaquin wanted to ask you sustituiste components it is that I have the same problem with the same source alientacion a imac , and I greatly appreciate it if I hisiera please send a picture of the components sustituiste

Hello, in the post I put the components that have replaced. The source is screen printed the names of the components, so you have no problem looking for them. I can not put pictures because ago much of this, and I have no source for photos.
Anyway, do not change for change ..... to repair, must be checked first.

Usually (but not always) fail components that handle "A lot of current" such as the mosfet switching diode bridge, etc. Check in your case, if any of these components is "In short," and if so, then replace them. Not always replaced, repaired, as sometimes "they are shorted" because of a smaller component that is wrong.
Unfortunately, we have no scheme of this source, but things would be easier.

Luck. A greeting.