To masters
I found this pcb from internet. I converted from pdf to lay6.But my experience not enough to build and I did not to be sure,it is true or not. therefore I'am asking to masters. İf it is possible please can you check it
sorry for my bad english
I found this pcb from internet. I converted from pdf to lay6.But my experience not enough to build and I did not to be sure,it is true or not. therefore I'am asking to masters. İf it is possible please can you check it
sorry for my bad english
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Yes, D3 must be inverted as you can see in Apex components PCB.
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A nasty PCB, without numbered parts ... could be better. However, the schematic should be in correlation with PCB.
A nicer PCB is the one posted by @student II although the distance between PCB tracks should be checked there!!!
Regarding the schematic, you would need a resistor or jumper between SGND and GND, very useful especially if we want to test only PCB amplifier.
Fuses should protect all the amplifier. I'm saying this because in my experience I had customers who have dropped cognac inside the amplifier - through the air vents of the casing - and so there was a short circuit in the VAS circuit. The lack of fuses to interrupt this was useful because it limited the damage. So you never know who you sell your amplifier !!! There are rare cases, but they can exist!
hola a todos hice el apex b500 y se calienta demasiado la resistencia de 2k7x2w que esta en el lado positivo de la tarjeta, me prende el circuitro serie y n o tengo sonido si alguien pudiera ayudarme se lo agradeceria
This is an English language forum. You most always post in English.
My apex not clear sound,
i try just with 1 pair 2sc5200_2sa1943,
i try value r27 (22ohm) changed with (52ohm), because transiator mje hot with 22ohm.
After changed r27 with (52ohm), that transistor not hot, but sound not clear.
May any one give solution.
Thanks before
i try just with 1 pair 2sc5200_2sa1943,
i try value r27 (22ohm) changed with (52ohm), because transiator mje hot with 22ohm.
After changed r27 with (52ohm), that transistor not hot, but sound not clear.
May any one give solution.
Thanks before
podrias compartirme por favor el pdf, porque yo lo arme y no me funciono, me pregunto en que me habre equivocadoThanks Kandimba,
Regards,
macd🙂🙂🙂
My B500 progress slowly...to much work at the moment...both channels up and running...busy with PSU and protect PCB...will post pics soon....
Ola yo poderia hablar castelhano pero esto es un english forum, so you should speak in english. I gona send tou you information about B500P.
Regards
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Javys, debes escribir en Inglés o los Miembros del Foro no pueden ayudarte.
Es un Foro Internacional, hay miembros de todos los países e idiomas, han convenido en usar Inglés como idioma común.
Si no sabes Inglés usa Google Traductor o algún otro.
No es perfecto pero peor es nada. 😀
Note to Moderators: don´t waste time translating, this is only a suggestion for Javys to use Google Translate or something, both ways 🙂
EDIT: thanks Kandimba, muito obrigado 🙂
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Hİ friends,
can any one tell me pls what is different with B500 and B500p? i start pcb but i like make my own. but now i see there is another pcb B500p just a little bit different from B500. please some one explane this.
i just finish my pcb desing but not check if there is a anything wrong. in 2 days i will start make my B500. ty to apex for share it.
can any one tell me pls what is different with B500 and B500p? i start pcb but i like make my own. but now i see there is another pcb B500p just a little bit different from B500. please some one explane this.
i just finish my pcb desing but not check if there is a anything wrong. in 2 days i will start make my B500. ty to apex for share it.
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As you can see in Post #3432, you have VI limiter as well as Prot. detection to activate PSU 7 Protection, and you have more: Led indication for ON, Signal and overload.
Regards
ty for ansver . another problem is 2 watt 15v zener i cannot fint in turkey. is it ok 1w ? i will use + - 90v dc. i just waiting zener diode all other parts are ok
Be careful, with 4 power transistors on positive rail and 4 to negative, you should use 80-0-80 VDC