Question about JVC AV-20020 20" TV
ur tv has problem with vertical scanning section. may be dry soldering or vertical output ic faulty.
u can easily find out the vertical section on ur tv. for that u have to open ur tv. u can see a coil is fitted on the picture tube neck. there are four lines coming from the neck, of which two will go to horizontal scanning section and the remaining two will go to vertical section. follow the two thin wire normally in color green and yellow. it will go to a socket in the main board. trace the track from that socket in the main board . it will lead u to the vertical scanning section. check for any dry soldering in that section. mainly the soldering of vertical ic. if see or not re-solder the leads of the vertical ic . then check is the tv is ok or not. if complaint remains replace the vertical scanning out pout ic. it will be fitted on a aluminum heat sink in the vertical section. if u need more assistance feel free to contact through fixya.
Posted on Apr 11, 2011
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Posted on Jan 02, 2017
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