Hitachi 32HDT50 Service Manual page 52

SELF DIAGNOSIS FUNCTION
• PDP Monitor
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:
1) Press Sub-Power button for more than 5 seconds.
2) Make sure Power Cord of AC line is connected to the PDP Monitor.
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.
Number of red blinks
of power indication light
1
2
3
4
5
6
7
8
[Blinking condition of power indication light]
ex. 2 blinks
1 sec
Presumed failing PWB
Logic
X-SUS
Y-SUS
X-SUS, Y-SUS, SDM, PSU
ADM, PSU, ABUS
ADM
ADM
All PWB's
1 sec 2 sec OFF
SDM: Scan Driver Module
PSU: Power Supply Unit
ADM: Address Driver Module
Note: SDM is permanently contacted to glass part
Repeat
52
PT3-E/G AVC3-U