Questions & Answers for: main bd

...control pwb. This is somewhat difficult to replace and the the back must be removed, and the control bd is located underneath the main digital bd. assy. The main bd is the bd with all the

BD error for 800 ms after the polygon motor rotation has been stabilizad. Poor contact of the connector terminals. Defective LSU. Defective main PCB. Check the connection of connector CN18 on the main

...main bd have exploded and may have taken out the Main Power supply as well. The Y-Main Upper Y-Scan bd may have some blown up IC Flat pacs which will cause a chain reaction taking out the Y-Main bd ...

...There are a number of causes. First, The Main Power Supply is bad. Second the the X-Main bd or the Y-Main bds are bad. Third, the Main bd is bad. Have a trained Samsung tech troubleshoot the

...Main bd controls the Power supply. The Main bd receives the "Power on " signal from the IR sensor and the Power Button the tv. Seems that the Main bd is not sending the Power on signal to the Power ...

main bd controls the "Turn on" sequences". When you press the Power on button the Main bd sends a "Turn on" signal to the Power supply. The clicking you hear is the Power on relay ativating. If the tv

...it does then you have a bad HDMI cable. If it does not then you might have a bad Y-Main bd or X-Main bd or a Main bd. It can also be bad buffer bds. Have a trained Samsung tech look into the

...failed. Parts that fail are the Y-Main bd, Power Supply, X-Main bd, Y-Upper Scan bd and Buffer bds. Last is the Panel has shorted,causing a cascading component failure. Very expensive if that

...main bd. Part needed is 6871VSMS28B. Will this fix problem for LG TV Model #62SX4D * TV was working fine, then turned on last week, and had no picure, Best Buy Repair man's notes of description ...