HI all
i've a proble with STK401-130
the problem are:
when i make the pcb as shown in datasheet i found it have some error (short circuit) between +ve and -ve pins
there are some different between the schematic and pcb in this datasheet so i don't know who is right schematic or pcb
at any way when i make the pcb it fails
and when i make a new pcb from the schematic the amp work good with good sound but
R9 and R5 have been burned due to very high heat
i don't know why
then the IC it self burned
so can any one help me in this problem or can suggest any circuit compatible with this IC
THANKS
this is the datasheet for IC
http://www.egytronics.agff.net/upcenter/stk401-130.pdf
i've a proble with STK401-130
the problem are:
when i make the pcb as shown in datasheet i found it have some error (short circuit) between +ve and -ve pins
there are some different between the schematic and pcb in this datasheet so i don't know who is right schematic or pcb
at any way when i make the pcb it fails
and when i make a new pcb from the schematic the amp work good with good sound but
R9 and R5 have been burned due to very high heat
i don't know why
then the IC it self burned
so can any one help me in this problem or can suggest any circuit compatible with this IC
THANKS
this is the datasheet for IC
http://www.egytronics.agff.net/upcenter/stk401-130.pdf
Please take the time to explain more in detail what you did.
What about a short between -ve <> ground and -ve <> ground.
Which IC burned? the STK or the power supply IC.
Are the resistors heating up with or without IC?
Was there a load connected? Was the input connected?
/Hugo
What about a short between -ve <> ground and -ve <> ground.
Which IC burned? the STK or the power supply IC.
Are the resistors heating up with or without IC?
Was there a load connected? Was the input connected?
/Hugo
What about a short between -ve <> ground and -ve <> ground
this short happen in pcb in datasheet but i don't use it i use the schematic
Which IC burned? the STK or the power supply IC
THE STK IC
Are the resistors heating up with or without IC?
heating with IC CONNECTED
Was there a load connected? Was the input connected?
yes input from computer
load are 8ohm speaker pioneer
this short happen in pcb in datasheet but i don't use it i use the schematic
Which IC burned? the STK or the power supply IC
THE STK IC
Are the resistors heating up with or without IC?
heating with IC CONNECTED
Was there a load connected? Was the input connected?
yes input from computer
load are 8ohm speaker pioneer
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