(PDP MONITOR)
Burn-in mode check (*1)
NG?
Is AVC Power Indicator
always red and no sound
of Relay heard?
Yes
No
No picture
No sound
No
Yes
Check AVC POWER PWB
Caution!
It should be always confirmed that C907(CE220uF/450V)
is discharged when touching POWER P.W.B. with fingers
or soldering iron after power-off in order to prevent
the electric shock and second damage.
Check D901, D902,
C901~C907, etc.
Is R915
open?
Trouble of Main Switching-regulator
(Page 49)
Check I901, D911, T901,
C913, C918, etc.
Check H901, C909, etc.
Protection circuit Operation
(Page 50)
Is Q933(G) voltage
over 1.0V?
Yes
Yes
Yes
No
Yes
No
No
No
A.
B.
Has F902
blown?
Has F901
blown?
Check AVC AV PWB
I001, Q227, Q228, etc.
Note (*1)
Disconnect the MONITOR connection cables (DVI/DIN)
and press Sub-Power button for more than 5 seconds.
•
Test patterns will be displayed
(Trouble of PDP MONITOR
(Page 51)
)
C
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