Re: Crown Xti 1000 - No power
Its off the transformer with 2 diodes on the v_kstart
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Crown Xti 1000 - No power
Symptoms when I got it was RT6 Was getting hot was getting thermal error lights
Now I am not getting any lights RT6 has stopped getting hot.
Replaced C196 - 35v 200uf
Replaced u14 - TL494
Replaced R370, R371, R372, R73 - 48.7K with 47K resistors as I was told these would be fine.
I measure voltages at c195 and get 9.5 volts it says in the manuals the voltage at this cap is meant to be over 35v.
Anyone else know what else I should be checking on this amp.Last edited by Amraks; 08-17-2019, 10:38 PM.
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Hello,
My Dell Precision 5530 turned off suddenly when I was running Matlab and wouldn't turn on, show any lights, fans, and/or any signs of activity at all. I opened the case, removed the battery and looked at the board with a thermal camera while the AC adapter was connected. I saw that PU1252 was >120C so figured the chip had died on me Got the part number off the attached schematic (see Mouser link below) and replaced the chip. After replacing the chip the board (connected to AC adapter) was able to briefly power on, spin the fans a little bit, and turn on the front led lights.... -
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