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Re: B&R SPC900.TS77-05 Short circuit problem
by Google Adsense [BOT] • 8 January 2023, 07:56
ismailakyoltr wrote:I did apply 5th pin 1v 1a, any part does not heat up.Hello!
Repeat the short circuit test on pin 16 of this chip. Limit the voltage to 3V. Start with a current limit 0.5A. If nothing heats up, rise up the current to 1A.
If still nothing heats up, measure the voltage on the end of test wires (at the point, where they are soldered to the board) during a short circuit test at 1A.
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I have installed up to 1.5a but there is no heating component on the front and back.
I can't think of anything. Any chance of working with low resistance?
Even if it's bios related. I think I can't find dump bios.
I'm considering removing the CPU based on the answers from you guys.
I'm sorry I skipped this part. If it's important, I can repeat the process.
I can't think of anything. Any chance of working with low resistance?
Even if it's bios related. I think I can't find dump bios.
I'm considering removing the CPU based on the answers from you guys.
matic wrote:1A'da kısa devre testi sırasında test kablolarının ucundaki (panoya lehimlendikleri noktada) voltajı ölçün.
I'm sorry I skipped this part. If it's important, I can repeat the process.
There is no short circuit at all.
The LDO3 output of the chip ISL62392C is not used on this board. The designer of the board disabled the LDO3 regulator with connecting the enable pin to ground and this way the LDO3 output is not active and can be connected to the ground as well.
Solder the ISL chip back to its place and measure the voltages to ground on pins 1, 4, 8, 11, 14, 17, 18, 21, 24, 27 of this chip.
The LDO3 output of the chip ISL62392C is not used on this board. The designer of the board disabled the LDO3 regulator with connecting the enable pin to ground and this way the LDO3 output is not active and can be connected to the ground as well.
Solder the ISL chip back to its place and measure the voltages to ground on pins 1, 4, 8, 11, 14, 17, 18, 21, 24, 27 of this chip.
Re: B&R SPC900.TS77-05 Short circuit problem
by Google Adsense [BOT] • 19 January 2023, 07:14
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