Question about Toshiba 43H71 43" Rear Projection Television
Thanks for the quick response. So these are wires in parallel with the traces for better current carying? I see an inductor and 4.7k resistor in the +/-16v paths to the STKs, but no jumper wires near the STKs (actual board is back in the set right now). If this is something I need to add, what do the numbers you list mean? Where should thes jumpers be connected - are there specifics posted on another thread somewhere (I tried to search)? Thanks!!!
(By the way - I have just replaced my STK's, but F850 in 16v path continues to blow.)
I will try my best to explain.....hard wires connect two circuit
traces together and are not in parallel with any component.They are used where a component is not needed.....however, the 16v
supplies must travel from the main board where the F850 &F851 fuses are to the signal board where the STK's are....after the two B+ volts pass thru the two PCB edge connectors,typically on an "H" line Toshiba en route to the STK current limiting resistors there are hard wire jumpers with NUMBER locations marked on the PCB.Just " Follow the path the voltages take" & solder all connects.......
Next thought = What brand / quality / price were your new,replacement IC's ?? = Toshiba,Sanyo or.....Chinese junk?
Posted on Aug 22, 2008
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Posted on Jan 02, 2017
Tips for a great answer:
Dec 01, 2016 | Samsung Televison & Video
1) short in circuit... frayed wire, accidental circuit board contact with metal frame, solder bridge on circuit board, or wire placement/connection error
2) Too high voltage in circuit can cause excess current
TROUBLE SHOOTING: measure circuit voltage w/ meter. If normal, put amp-meter (with fuse) in circuit
at problem fuse connector and quickly check current.
If very high, trace (look) along current path for location
of a short to ground/frame/etc.
Hope this helps...if this is all Greek, consider looking
for Better Bus. Bureau approved repair shop.
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