Hitachi 42HDT51M, Руководство по обслуживанию

Страница: 52 / 131

52
PT5-G/PW1-H
Self Diagnosis Function
˙
PDP Monitor [42HDT51,55HDT51]
Sub-Power button also activates Self Diagnosis mode for a PDP monitor failure with no picture.
To enter to Self Diagnosis mode, follow the next conditions and steps:
Conditions:
1) The connection cable between the Monitor and AVC (DVI and DIN) must be unplugged from the Monitor.
2) Make sure Power Cord of AC line is connected to the PDP Monitor.
3) The Main Power switch must be turned on.
Procedure:
42": 1) Press Sub-Power button for more than 5 seconds.
2) It generates red blinking series of the power indicator light when PDP Monitor has some failure.
3) If PDP Monitor has no failure, it enters Burn-in mode.
4) Turning off the Main Power switch would cancel the Self Diagnosis mode.
5) The next table shows the PDP PWB in which failure most probably would be allocated according
to the number of blinks.
55": 1) Press Sub-Power button and button on the bottom of the monitor at the same time, and keep it for
more than 5 seconds after the power turned on.
2)It generates red blinking series of the power indicator light.
3)Any operation would cancel the Self-Diagnosis mode.
4)The next table shows the PDP PWB in which failure most probably would be allocated according
to the number of blinks.
Number of red blinks Presumed failing PWB
of power indication light
1 Logic
2 X-SUS
3 Y-SUS
4 X-SUS, Y-SUS, SDM, PSU SDM: Scan Driver Module
5 ADM, PSU, ABUS PSU: Power Supply Unit
6 ADM ADM: Address Driver Module
7 ADM
8 All PWBís
Note) SDM is permanently contacted to glass part.
[Blinking condition of power indication light]
ex. 2 blinks
1 sec 1 sec 2 sec OFF Repeat
a b a b
11. PDP TROUBLESHOOTING FLOWCHARTS