I don’t usually work on TV receivers. My repairs are pretty much limited to my BMW boxer motorcycle, my riding lawn mower and my diesel powered motor home. But, it appeared that the repair took only a screwdriver and a new dLp chip…perfect. So, in I went.
The new dLp chip is working just fine however, when removing and disturbing the optical engine on these receivers, there is bound to be some alignment required after repairs.
I cleaned the lens, vacuumed the various boards and the inside of the cabinet as well as the port where the magical micro-mirror dLp chip is located. I dared not go further due to what appeared to be various mirrors, lenses and other optical stuff that looked like once disturbed, it would take an act of God to realign properly.
I know about the technician/service menus at mute-1-8-2-power. However, I have no idea which menus to use or how they impact picture quality. I do see the focus wheel behind the dLp chip mounting on the DMD board (whatever a DMD is). I haven’t touched it as yet…I’ll have to work up the courage to reach into the back of a powered TV chassis and feel around for that wheel while watching the screen in a mirror. It doesn’t appear that there is any high voltage anywhere inside the cabinet (exception 120VAC) but, please correct me if I am wrong.
I do recall the crackle of the high voltage (25K volts) section of my old RCA CTC40 chassis TV receiver. That thing scared me every time I hit the power switch…sounded like lightening inside the cabinet.
Those LEDs that provide picture and illumination have some healthy wires and cooling copper bars and what appears to be air cooling ductwork attached. They are out of the way and so, I’m not concerned about them. Those LEDs operate at rather low voltages if I am not mistaken.
So, my question is, is anyone familiar with the alignment of this style Samsung receiver? Which menus do I use? I see “factory reset” as one of the selections. Should I try it? Should I be concerned about reaching into the rear of the cabinet while the set is powered?
Thanks in advance for any assistance.
73
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