| Device / Chassis | Application | Role of STR-F6267 | Source | | :--- | :--- | :--- | :--- | | | Rear Projection TV | Primary Chopper Circuit (IC8301) generating secondary voltages | Service Manual (Page 60) | | Sony KV-SW21M80 / BX1S | 21" CRT TV | Main SMPS Control IC providing system power | Electronics Repair Blog | | Sony KV-21FS140 | 21" Flat TV | Main Switching Regulator | Field Service Report |
: Combines a power MOSFET with a current-mode PWM controller in a single 5-pin SIP (Single In-line Package). str f6267 datasheet pdf updated
I can tailor a specific diagnostic roadmap or suggest modern pin-compatible replacements! Share public link | Device / Chassis | Application | Role
Common causes include a missing or unstable supply voltage on pin 4 (VCC), which should be around 18V, a short circuit in the internal MOSFET (check pin 5), or an overcurrent condition on the output triggering the protection circuits. Also, verify the startup circuit and the auxiliary winding of the transformer. Also, verify the startup circuit and the auxiliary