The power supply continuously starts up and shuts down. This typically implies an overloaded secondary output circuit or a faulty optocoupler/TL431 voltage reference on the secondary side.
When voltage is applied to the power supply, current flows through a high-value startup resistor into Pin 4 ( VCCcap V sub cap C cap C end-sub str f6267 datasheet pdf updated
If you need a verified or functional equivalents to swap out an obsolete chip. The power supply continuously starts up and shuts down
Use a multimeter to check for a short between Pin 1 (Drain) and Pin 2 (Source). A short here indicates internal catastrophic failure. this low-value resistor (typically
If the internal MOSFET shorts, this low-value resistor (typically