it is not valid to check caps in-circuit due to the fact that there are other components connected to the caps.
If you look at the schematic, you will see that C915 (1uF 25V), C920 (1uF 25V), C922 (2.2uF 25V) are connected in PARALLEL so your readings as shown below from your post do not make sense. C915 = 131uf ESR 0.64 Vloss 11%
C922 = 2341nf ESR 2.1 Vloss 1,4% soldered out of pcb
C920 = 130uf ESR 0.70 Vloss 11%
I also wonder if PFC IC902 (FAN6961) is damaged when PFC MOSFET Q902 shorted out.
Oke got i back a couple a days ago and it is working,,
He claims that he did notting the last time..
Only i whas so stupid i tought this power supply was the same as the 47 inch,
So i swapped out T803 from the 47 inch board onto the 37 inch board.
Result is that doesnt work !
Only now the 37 inch is up and running only the backlight flickers alot !!
iam looking at the schematics of this tv and i cant indentify the next part FB905 ?
it should measure 60ohms but iam getting in and out of circuit 0.01ohm
FBxxx is generally a reference to a ferrite bead or at least some sort of inductor. It may be what I have marked but I cannot read the silkscreen legend
Comment