Repair Service For Samsung QN55S90CAFXZA and 50 similar items

the common failure symptoms ?????1. The "Periodic Ticking" Sound (Most Specific Symptom) ?This is the most definitive sign that this specific board has failed. ?The Symptom: You hear a faint, repetitive "tick" or "chirp" coming directly from the back of the TV, occurring roughly once per second (1 Hz). ?Important Distinction: This is not the loud "click-clack" of a relay that you might hear on older TVs. It is a quieter, electronic ticking sound caused by the board trying (and failing) to initialize its standby voltage. ?Result: The TV will usually show no picture and no response to the remote while this ticking occurs. ?2. Dead Set (No Power, No LED) ?The Symptom: The TV appears completely dead. There is no red standby light on the front bezel, and pressing the power button yields no response. ?The Cause: This indicates a failure in the standby circuit of the BN44-01169A/1170A. Even though the main fuse might still be intact, the board is not converting AC power to the low-voltage DC needed to wake the main processor. ?3. Red Status Light Blinking (Power Cycling) ?The Symptom: The red standby light on the front of the TV blinks in a pattern (often 2 blinks or a continuous loop) when you try to turn it on. ?The Behavior: The TV may attempt to boot (you might see a faint flash on the screen or hear a relay click), but it immediately shuts down and returns to the blinking red light. ?Context: While blinking lights can sometimes indicate a Main Board failure, on the S95B/S90C series, if this is accompanied by the "ticking" mentioned above, the Power Supply is the confirmed failure point. ?1. BN44-01169A (For 55" models) ?This power supply is used almost exclusively in the 55-inch versions of the S95B and S90C/D series. ?S95B Series: QN55S95BAFXZA, QN55QS95BAFXZA. ?S90C / S90D Series: QN55S90CAFXZA, QN55S90CDFXZA, QN55S92CAFXZC. ?Other Variants: QN55S95BDFXZA. ?2. BN44-01170A (For 65" models) ?This supply is the higher-power equivalent for the 65-inch versions of the same series. ?S95B Series: QN65S95BAFXZA, QN65QS95BAFXZA. ?S90C / S90D Series: QN65S90CAFXZA, QN65S90CDFXZA. ?Other Variants: QN65S94BDFXZA, QN65S95BDFXZA. . PLEASE READ BEFORE PURCHASING THIS IS A MAIL-IN REPAIR SERVICE ONLY. You are NOT buying a new circuit board. INSTRUCTIONS: 1. Buy this service. 2. We will message you our SHIPPING ADDRESS. 3. You mail your broken board to us for repair. WHY CHOOSE US? We have proudly served the community for 19 years, delivering fast, reliable, and professional repairs. BOARD REQUIREMENTS The board we receive must be in good physical condition and must not have been tampered with or serviced before, i.e. no apparent traces of previous repairs should show. We will reject service to boards that someone has attempted repairing and you will still be charged for the return shipping and the/PayPal fees