: A technician encountered a VU TV where the screen remained black, but sound was still audible. Standard tests confirmed that while the power supply was sending voltage, the LEDs themselves weren't lighting up.
The for a specific TV model (e.g., Hisense or Felix).
Based on verified schematics from Electronica Max , the pin assignments for the backlight driver application are as follows: Description Main power supply input (often 12V) DIM PWM Dimming control input OVP Over-voltage protection sensing COMP Compensation pin for stability FB Feedback pin for current regulation REF Internal reference voltage ISET Current set pin (via external resistor) CS Current sense input GATE Drive signal for external MOSFET GND System ground Troubleshooting and Circuit Protection
Do you have any specific questions about the SN51DP or its applications?
He looked at the pinout again. Pin 4: Ground. Pin 8: VCC. He looked at his breadboard. He had connected them exactly as shown.