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7 Times Blinking (abnormal floating voltage)(1/3)
Check the short circuit
between
between
TPSC1 and VFG on SC
VFO and VFG on SU/SD
VFO and VFG on SU/SD
Shorted
No short
Shorted SC/SU/SD
module
module
Check the short circuit
between
VF5V and VFG on SU/SD
between
VF5V and VFG on SU/SD
Remove SU41/SD42
connector
connector
Shorted SU/SD
module
And SC module
module
And SC module
Continue to
“Check 2”
Check 1
< VFO/VF5V line power supply chart>
SC
SU
41
VFO
VF5V
SU
SD
SD
42
VFO
VF5V
TPSC1
VFG
Each voltages (VFO, VF5V) are generated between these and VFG.
Then, these voltages are supplied to the scan driver IC.
Then, these voltages are supplied to the scan driver IC.
Though replace all boards shorted, if 7 times
blinking remains, it is highly possible that PDP
panel is defective also.
In this case, SU / SD / SC board breaks again.
blinking remains, it is highly possible that PDP
panel is defective also.
In this case, SU / SD / SC board breaks again.
Shorted
No short
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