My Toshiba Model 43hx71, Cinema Series, Has No Picture,or Sound. Only The Red Power Light Blinks. Could It Be The Projection Bulb?

Question

My Toshiba Model 43hx71, Cinema Series, Has No Picture,or Sound. Only The Red Power Light Blinks. Could It Be The Projection Bulb?

3 Answers

Answer Question

Answer 1

I have a Toshiba 43HX71 for 8 years.
No power on only with a red blinking LED light.
Not always the STK392-110 convergent IC problem.
Open the lower-back cover, goto the far-left corner.
On the big-floor PCB, try to locate the black SOC Fuses.
Total 4 (5Ax2, 2A, 1.25A) around a group of purple Capacitors.
These bad FUSES are all with infinite (1) resistance unit.
Should be easily picked up with a Volt-Ohm-Milliammeter.

Replaced and done. Good Luck to all.
Allen 2011/3/27

Answer 2

I have a Toshiba 43HX71 for 8 years.
No power on only with a red blinking LED light.
Not always the STK392-110 convergent IC problem.
Open the lower-back cover, goto the far-left corner.

On the big-floor PCB, try to locate the black SOC Fuses.

Total 4 (5Ax2, 2A, 1.25A) around a group of purple Capacitors.

These bad FUSES are all with infinite (1) resistance unit.
Should be easily picked up with a Volt-Ohm-Milliammeter.

Replaced and done. Good Luck to all.
Allen 2011/3/27

Answer 3

Hi,

I would rather have a friend assist me in troubleshooting what might be possibly the cause, why

it is not turning on properly.

I would look inside the unit for , possible bad capacitors or burnt parts inside

then have a voltage measurement inside starting with the power supply with the aid of

service manual.

If seems the problems relate to weak bulbs then I might as well replace the bulb, if proven

on the voltage reading.

Only one thing sure, it is in protection state.