The color and focus is off - Hitachi 43FWX20B 43" Rear Projection Television

OK--for a Hitachi this set is a little unusual---it uses two of the STK-392-120 CONVERGENCE CHIPS.

One or both are bad(usually just one) You need to replace both and any discolored resistors around them--all the resistors have location numbers and if any are even slightly discolored you need to replace them and both chips---You can buy a pair of these chips on Ebay for less than 13 dollars plus shipping.

If you remove the back cover (unplug the set first!) look at the circuit board on the far right side----about 4 inches wide and about 12 inches deep---the chips are on the far right side on the large metal piece with fins.

If you look and find any of the resistors behind them (on the left side of the metal with fins) discolored---note the location number printed on top of the circuit board under them (RK46 etc) and I can tell you the exact value of that part--most of the resistors that fail are low value and can be tested just like a fuse--It is important to find any bad resistors as if you replace the chips and miss any open resistors the set will still have the same problem.

THIS IS A EASY SET TO DO THIS REPAIR ON IF YOU KNOW HOW TO SOLDER---I CAN GIVE YOU INSTRUCTIONS IF YOU NEED THEM.

THIS KIND OF REPAIR TAKES ABOUT 1 HOUR--THEN YOU ADJUST THE SET WITH THE ORIGINAL REMOTE--set should be good to go without having this trouble for 5-8 years.

Let me know if this information helps you---If you are not able to do the repair let me know and I will give you advice


SD TECH