Question about Thomson 28VK25US TV
I have a SANYO AVM-3289G with no vertical deflection, just a vertical line and audio. Can you please tel me which transistor is the the vertical output on this set? I have ordered the SAMS photofact, just would like to order the parts also.
It isn't a transistor, It will be an I.C. with a part number that probably starts with an LA_ _ _ _ . It will be on a heat sink and be in the vicinity of the connector going up to the yoke. Try replacing that. But first, check all the electrolytic caps around it for testing dry (sorry - takes a special meter to do it in circuit) or just replace them. May have lost power to the I.C. as well. Look the I.C. up in the free NTE crossreference at nte.com get a diagram of its pinout to find what pins the power and outputs are on.
Posted on Dec 31, 2007
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you can proceed as follow to fix it.
now your problem how to find out whether drive is there or not it is very simple even you donot have scope.
you simply touch with screw driver or meter prob at the poibt where vertical signal is input to vertical stage
if h/line is spreadindg or tries to spread then your output is ok &problem is in drive ckt.
for schematic try given site give model no &download it
hope this will help
Oct 12, 2007 | Sanyo AVM-2557 TV
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