HUllo,
I'm trying to fix the power supply of a crown xti (service manual here (link valid for 2 weeks, happy to share after that though)). I'm a bit out of my depth. I think its the control mechanism that's damaged in some way. It appears to be a self powering comparator circuit that supplies a kickstart voltage to start the SMPS. But I don't really understand what's going on well enough to fix it.
Can anybody help? The schematic is on page 75. Operation description is page 25.
I'm trying to fix the power supply of a crown xti (service manual here (link valid for 2 weeks, happy to share after that though)). I'm a bit out of my depth. I think its the control mechanism that's damaged in some way. It appears to be a self powering comparator circuit that supplies a kickstart voltage to start the SMPS. But I don't really understand what's going on well enough to fix it.
Can anybody help? The schematic is on page 75. Operation description is page 25.
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