Mulja tv repair portal
Equipment Repairs => LCD TV forum => Topic started by: moosemaurice on May 17, 2013,04:24:29
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Please help if possible, I have a evesham v32mcgi, set seems dead with no led light on front, i changed the power supply but didn't help, there is only 5v comming from both supplies, can any one help?
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was it a new psu ?
what is the part number/type psu
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Ha220t2a1. Up220-ae-a, is this any help?
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It was a second hand one, was meant to be checked and tested.
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Check R-31,R-32,R-33
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yes check for start up voltage to the smpsu chip (8 pin s/m device) .if missing.
check 3 resistors form a high value chain from the main smoother to the chip R31/32/33
on fine the one closest to the chip R33 was o/c .
The values are non standard measuring 259 k each i fitted a 275k and it worked
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Checked resisters and ok with voltage getting to ic but supply still only putting out the 5v.