Question about Sanyo DS32920 32" TV
SOURCE: image flat line
Vertical sweep failure.
It will be an I.C. with a part number that probably starts with an LA_ _ _ _ and be on a heat sink 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.
Hope ya fix it!
Posted on Jan 03, 2008
Ther is probably a fuse and a diode that got hit by the lighting. If you want to try to fix it yourself unplug it check the fuse and change it if it is bad. Then turn it on again. If it blows that fuse then a diode is also out.
Posted on Mar 19, 2008
This is a fault in the vertical circuit. It can be either a bad solder connection of the vertical IC or a defective IC. If you can solder, you can fix this yourself. Open up the back and locate teh vertical IC. It willbe a small flat IC attached to a heat sink and be marked LA7841. Resolder the pins first. If that fails to resolve the problem, replace the IC. Please note that there may be capacitors in the circuit that need to be changes as well, but without the chip working, it will be difficult to determine which ones. Update this once the IC has been resoldered or replaced with the results and we'll continue if necessary.
Posted on Sep 25, 2008
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