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Posted on Jan 02, 2017
SOURCE: Need to center the picture
This is a defect in the vertical scan amplifier. It is not an adjustment. Most of the time there are a number of capacitors in the vertical deflection amplifier that can cause this type of fault. Sometimes the output drive IC can cause this fault, but more rarely.
An experienced service tech can locate the defective parts and replace them. The average time involved is about 1 to 1.5 hours.
Posted on Jun 02, 2008
The deflection circuit is most likley bad. You need a service center to repair . If you can TEST THE BIG FAT TRANSISTORS AND CHANGE OUT IF BAD, THEN YOU CAN FIX IT. They are usually on a big metal finned heatsink ...
Posted on Mar 07, 2009
Might be a problem with your memory,your video driver,or the screens inverter board.
If you have more than 1 bank of memory,try removing one bank at a time and see if this corrects the problem. If so ,replace the bank that was removed when your screen works properly.
Also ,try updating the driver through the "Windows Update" service. If neither of those works, you may have a faulty inverter board.
Posted on Jul 22, 2009
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If this is a single overhead cam, possibly A15SMS (engine type):
If you have everything stripped down and can see the crank shaft gear, you will notice an arrow stamped into one of the gear teeth.
this arrow must point towards the bottom, you will notice a mark (notch) cut into the housing, line the arrow on the gear with this notch.
remove the four 10mm bolts that secure the top cover of the timing belt, gently open the cover (not removing it) to see the Cam Gear. You will not be able to remove the cover because of the design.
The Cam Gear should have a line stamped into one of its teeth, this should be pointing up and towards the top. On the inner cover you will notice a notch in the casing, line both up together if it is not already.
You can check the following if unsure:
Remove # 1 spark plug (nearest the Cam Belt) and place a long screwdriver in the hole carefully to feel the piston is at the top, #2 and 3 will be down and the last one #4 at the distributor end will also be up.
Remove the rocker cover and you should see the Cam loabes on #1 piston free, (no pressure on the cam shaft) meaning the valves are closed.
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