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P50T01U/E P50TP01U/E P42T01U/E P42TP01U/E

6. Troubleshooting

Burn-in mode

This mode displays test patterns of some single colour rasters in turn. These signals are produced by the built-in

generator of the panel. So it can be presumed that the panel has a problem when the Burn-in mode screen

is abnormal.

Using the remote control with the set turned on can activate the mode.

Press the “MENU”, “recall”, “9”, “OK” in turn for less than 2 seconds.

The set turns on with single colour raster and the OSD off [BURN IN: ON].

To escape from this mode, press the “MENU”, “recall”, “9”, “OK” in turn for less than 2 seconds.

[no picture, no sound]

C onfirm the LED state and examine according to the following Flowcharts:

LED does not light.

Are the voltages of

pin1/2/3(+5.6V) of PPM2

connector of MAIN PCB

normal?

Change MAIN PCB or EPM1 (cable).

If no improvement, go to

Power Supply Unit Troubleshooting

Yes

Is AC Fuse

F9A2 T6.3AH 250V of Filter

PCB normal?

Change AC Fuse of Filter PCB

Are the voltages of

pin6(+5.0V)/7(+3.3V) of PPM1

connector of MAIN

PCB normal?

Yes

Change MAIN PCB or EPM1 (cable)

Is the voltage of pin1(+5.0V)

of PPM1 connector of MAIN

PCB normal?

Change MAIN PCB or EPM2 (cable).

If no improvement, go to

Power Supply Unit Troubleshooting

Go to Picture Troubleshooting

Go to Sound Troubleshooting

B C

Hitachi P50T01U User Manual

Questions and Answers: