Stopped working suddenly.
It will power up and everything seems to work, but when I push the start button to begin a capacity test it display "ERR-04", which means "Circuit Error"
So wouldn't that alone tell me certain things are working and maybe narrow down the possibilities?
Can someone just look at this board and give me an idea of what I should check?
Are all those little squares SMD resistors?
It has the following major components on it....
IRFP150N --- Power MosFet - Tested Good
STPS3045CT --- Dual center tap Schottky rectifier
STM8S00 --- 8-bit microcontroller
Ti 272C --- Operational Amplifier
12.000 --- Crystal
78L05 --- 5V Positive Regulator
151 --- Power Inductor
TL431A --- Transistor - Tested good
A few electrolytic capacitors, a bunch of SMD resistors and a few other components but the main ones are listed above.
I'm not sure where to begin with this board because there are so many SMD components.
Can someone Please give me a hand?
Thanks if you can (or will) !
Oh...and there is a sub board that has the digital display and a few LEDs. It has a pin connector and plugs into the main board.
It will power up and everything seems to work, but when I push the start button to begin a capacity test it display "ERR-04", which means "Circuit Error"
So wouldn't that alone tell me certain things are working and maybe narrow down the possibilities?
Can someone just look at this board and give me an idea of what I should check?
Are all those little squares SMD resistors?
It has the following major components on it....
IRFP150N --- Power MosFet - Tested Good
STPS3045CT --- Dual center tap Schottky rectifier
STM8S00 --- 8-bit microcontroller
Ti 272C --- Operational Amplifier
12.000 --- Crystal
78L05 --- 5V Positive Regulator
151 --- Power Inductor
TL431A --- Transistor - Tested good
A few electrolytic capacitors, a bunch of SMD resistors and a few other components but the main ones are listed above.
I'm not sure where to begin with this board because there are so many SMD components.
Can someone Please give me a hand?
Thanks if you can (or will) !
Oh...and there is a sub board that has the digital display and a few LEDs. It has a pin connector and plugs into the main board.
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