I have a Proscan PLDED5066A-E that has sound but no back lights. When it is powered on, the red standby light will turn blue and you can hear sound but no back lights at all.
SMPS – AY 128D-4SF11
IC 1 – L6562A
L2 – AY 8LE00187
All reading is with the black test lead on negative side of the filter cap (C-13)
C13 filter cap – 173.1 V
C15-173.1V and 81.8V
D18- 383V and 122.2V
B1-121.1V and 121.1V
L2 - 0mV and 0mV
117.6V and 121.1V
C14- 121.5V and 10.2mV
10.5mV-----
Q2- 120.1V--------------
4.56V------
10MV---R83---1.3mV
10mV---R29---10mV
C4-(-)1.4mV (+)15.5V
T2F 195.4mV and 189.1mV
Thank you for the help.
SMPS – AY 128D-4SF11
IC 1 – L6562A
L2 – AY 8LE00187
All reading is with the black test lead on negative side of the filter cap (C-13)
C13 filter cap – 173.1 V
C15-173.1V and 81.8V
D18- 383V and 122.2V
B1-121.1V and 121.1V
L2 - 0mV and 0mV
117.6V and 121.1V
C14- 121.5V and 10.2mV
10.5mV-----
Q2- 120.1V--------------
4.56V------
10MV---R83---1.3mV
10mV---R29---10mV
C4-(-)1.4mV (+)15.5V
T2F 195.4mV and 189.1mV
Thank you for the help.
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