Synq 3K6 fed with 20hz DC squarewave: said poff!

[Mariano 823]

Tal vez un poco tarde pero lo he identificado como LNK306PN. ¿Si está colocado en la placa de la fuente de alimentación?

Me pasas pdf schematico..gracias

 

[Pano]

@Mariano 823 This is an English language forum. You must post in English.

 

[Mariano 823]

Muy interesante, esto explicaría mucho por qué estos amplificadores fallan a bajos voltajes cuando se manejan con fuerza. Entonces, su última línea sería una solución a este problema si lo entiendo, ¿correcto? ¡Una solución MUY simple en ese caso! ¿Cables de 10 cm a G, D y S?

¿O quiere decir que el truco ya se usa por diseño?

@Mariano 823 Este es un foro en inglés. Debes publicar en inglés.

Ok

 

[Mariano 823]

Tal vez un poco tarde pero lo he identificado como LNK306PN. ¿Si está colocado en la placa de la fuente de alimentación?

good afternoon you will have the schematic of psu 101A since in my country you can't buy it...thanks

 

[Mariano 823]

Hi, I'm working for that brand to design new product. I can help if you want.
Cheers,
Sabry

Hi, I'm working for that brand to design new product. I can help if you want.
Cheers,
Sabry

good afternoon... will you have psu 101A schematics? since in my country this new plate is not sold or arrives... I am missing the numbering of the 2 integrated soic16

 

[Mariano 823]

Schematic ???

 

[dragantolmac]

Does anybody have shematic or any data of -power supply 101a- for synq 3k6 this ic is damaged. Thank you

 

[Djmasterv]

Thanks but I actually already got the service manual and schematic which even got examples of components which are better to upgrade to, but they are now obsolete unfortunately. Can you ask for suitable updated alternatives to the ones I listed maybe? I think several users would be happy to know since this amp has been a bit problematic as I’ve understood it. Big thanks for your support, it’s the way to go and make customers happy!

Hi there. Im al Vivian drol South Africa and nzw to this forum. My 3k6 also blew up over the long weekend. Don't really know what the cause was. I'm in nzzd of a schematic if anyone can assist please. Found that rhz power supply module is damaged and 2 fets on heatsink Q3 nd Q5. Thank you in advance

 

[CR83]

I made some YouTube clips how i test the PSU Board after changing the defective PFC mosfet.


SYNQ 3K6 load test - YouTube Load Test



SYNQ DIGIT Class D Amplifier SMPS power supply troubleshoot Fehlersuche - YouTube PFC Mosfet Signal

@RBMK1500, Please share access to your YouTube clips? My SYNQ 3K6 does not power up. I have replaced the main switch and PSU module with no luck. Thank you.

 

[CR83]

Hi All, anyone else have videos that can assist with fault finding please?

 

[Reactance]

If you haven't by now self diagnosed the issue even with help you wont get very far. You can start by explaining what you have done as intervention as a starting point.

 

[CR83]

I have replaced the switch and power module only.
If I cycle the power switch roughly 20 times, it will power up, fans running.

 

[Reactance]

Sounds like a bad capacitor either around the power supply timing control circuit. You may need to post power IC part numbers and work from there, you can also start probing using a meter, if you are not experienced doing self repair work rather send it to someone who understands what steps to take.