Hi...im new in the site..just want to ask if I can request for apex h900 complete PCB layout and also the diagram?thanks alot!!
APEX H900
hi im also interested on apex h900..is there an available speaker protector pcb layout?thanks
hi im also interested on apex h900..is there an available speaker protector pcb layout?thanks
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hi apex sir,i changed the ZD 15v connect to high rail, its working perfect, clipping at 60v ac on out. input 50hz sine wave.
thank you.
Help me, please...
Mr Mile.
my protect not working. just Change the type of Relay
http://sphotos-d.ak.fbcdn.net/hphotos-ak-snc6/251168_4637781788055_988846719_n.jpg
Mr Mile.
my protect not working. just Change the type of Relay
http://sphotos-d.ak.fbcdn.net/hphotos-ak-snc6/251168_4637781788055_988846719_n.jpg
Attachments
check supply voltages,i'd do that first. i compared visualy your layout with APEX PA PROTECT layout and there are few diferences in component placing,so you changed it at few places. i'd also say that there is one 180k instead 100k resistor. why have you placed le-diode instead one 1n4148,that can also cause troubles? compare your layout with scheme and check voltages,you will find mistake,i'm sure!
hi ser apex
i try to creat H900
i use + -25 and + -50 VDC for test
it was worked wen i conect low voltage but when i conect Hi voltage the 100 ohm ressistor hase jenerate smoke
i linked a picture here
Download AP_Xaudio_20H900_20Component_20Layout.jpg
http://img4up.com/up2/08747272294675884912.jpg
please help creat that eror
thanks
i try to creat H900
i use + -25 and + -50 VDC for test
it was worked wen i conect low voltage but when i conect Hi voltage the 100 ohm ressistor hase jenerate smoke
i linked a picture here
Download AP_Xaudio_20H900_20Component_20Layout.jpg
http://img4up.com/up2/08747272294675884912.jpg
please help creat that eror
thanks
Last edited:
Finish
http://sphotos-c.ak.fbcdn.net/hphotos-ak-ash4/407695_4880626299016_1734733296_n.jpg
finally finished also protect the speakers that I created using APEX design, thanks Mr.Mile has given a good component layout, I just change the model of the relay without any change. relay works fine. IC 7912 and R 5W 47R hot, is there a problem? beg the help sir.
http://sphotos-c.ak.fbcdn.net/hphotos-ak-ash4/407695_4880626299016_1734733296_n.jpg
finally finished also protect the speakers that I created using APEX design, thanks Mr.Mile has given a good component layout, I just change the model of the relay without any change. relay works fine. IC 7912 and R 5W 47R hot, is there a problem? beg the help sir.
Attachments
measure the voltage across that 5W 47R resistor and than calculate power disipated on it by the formula P=R x I^2. if the power calculated is larger than 2W than you should use 7W resistor.
power disipated by 7812 is also easy calculated by measuring voltage between in/out pinouts and multiplying it with current flowing through it. if the power calculated is smaller than suggested by manufacturer than just add a heatsink on it.
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what voltage is at relay coil?
.
what is main supply voltage?
power disipated by 7812 is also easy calculated by measuring voltage between in/out pinouts and multiplying it with current flowing through it. if the power calculated is smaller than suggested by manufacturer than just add a heatsink on it.
.
what voltage is at relay coil?
.
what is main supply voltage?