Hitachi Ultravision 50in. Does not turn on at all

drcr5deep,

If your unit is truly a 1993 model I'm amazed that it still turns on at all. Usually projection units quit after about 10 to 12 years and are worn out. Judging by the age of the unit the most likely problem area is the high voltage section. I have a tip at http://www.fixya.com/support/r6396176-projection_tv_troubleshooting which explains how to troubleshoot this section and I have a tip at http://www.fixya.com/support/r6981868-replace_circuit_board_in_modern_tvs which explains how to remove and replace a circuit board if it becomes necessary to change out the deflection board.

Thanks for using FixYa and for the great rating.

hardrocko

When was the last time the projection lamp was replaced?The projection lamp on the tv now,has not been replaced like a 1 1/2 or 2 years,tv been on and watches like 4 or 5 hours a day?The tv projection lamp life are over.Require a new projection lamp.

This may be an issue with your color wheel where it isn't spinning up to speed at first but finally does after the 2 - 10 minutes. Fairly common in DLP TV's.
This could be fixed by a qualified Hitachi Servicer.
Blessings,
A/V Media Tech Guy

Hitachi Ultravision power light on but on picture

Replace Ballast Board it is what turns Lamp on! Call Encompass for Part 1-800-638-3328

could be shoted convergence ICs

Good Day;
Try resetting the TV by unplugging from the wall A/C outlet for 3 to 5 minutes, plug back in. No fix? Your TV's LAMP needs to be replaced. Part number; UX21516, for Model 55VG825.
Good Luck, big IRISH.

Buy a Sony!

Check IC601, C603 for leakage, I601 and vertical pulse detector QN05

for poor convergence check RK42 for open circuit.

Vertical output chip has some ring cracks on leads (cold solder joints). Set is shutting brightness off to protect5 it's crts from burning a black streak across them.