: Detailed PCB layouts for this board are often included in service manuals, such as the Sharp 50BL2EA Service Manual on ManualsLib , which can be crucial for locating physical components like U201 (FAN7930) , U101 (OB2273) , and U301 .
PW.188W2.711 is a Power Supply Unit (PSU) board commonly used in Sharp LED TVs and other brands like SJS TV Services Board Overview & Technical Details Primary Application pw.188w2.711 schematic
– Measure across the AC pins of the bridge (BD1). No diode should read shorted. : Detailed PCB layouts for this board are
: This board features an integrated LED backlight driver, controlled by the BD9211F PWM LED driver IC. This integration simplifies the overall TV architecture but means backlight failures often require checking this specific section of the power board. : This board features an integrated LED backlight
This board is most frequently found in:
The primary switching controller is often the OB2273 IC , a highly integrated current-mode PWM controller designed for offline flyback converters.