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Check and replace the damaged component/s at its vertical scan output section circuit. The vertical scan is absent now. Check and replace damaged component/s at its horizontal scan output section circuit. Check the LOT (Line Output Transformer) too for damage. Replace the horizontal scan output transistor. Check the input voltage to LOT. If the voltage is absent check the feeder resistor; if any. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/
Type in this key phrase " my service table today " in the search box at the top right of the display window of the home page, to get gathered some pages which has the details of practical experiences to the author of that site.
Troubleshooting to similar faults are given.
The circuit diagram to this set too might be there. Type in the IC number [chroma jungle] in the search box, at the top right of the display window, to get gathered the posts that have circuit diagram.
There is no vertical chip in this model/ ctc 169.
it's a transistor- resistor - cap circuit.
It's either the yoke wires on neck of the tube have
become de-soldered or the more likelypossibility
is the viliot / white wire from the yoke have simply
become de-soldered if you first re-solderthose two
wire chances are good you will restore full picture
My Konka LCD model KDL32AT23U Displayed a picture, then vanished, showing different colored vertical lines in horizontal blue bands.Then I could not turn it off with the remote or standby button on the side.Only with the main switch.What's wrong??
This is the same problem posted by kukish on july 26,2008
Hi,
Possibly an open resistor in the 100 Mega Ohms range (On some models as high as 470M). Either in series or parallel to ground of the G1, G2 or Screen supply. This would normally be in the PCB at the rear/neck of the picture tube.
Of course, it is also possible that the Screen adjustment or the FBT itself is already faulty.
Hope this be of some help.
Good luck and kind regards.
this symptom is caused by a trouble in the integrated circuit of in the vertical oscillator circuit.
try to look if your tv has a vertical hold control at the back or inside, if it does not have, u have a problem in the vertical oscillator circuit. by the way, its not the horizontal that u should concentrate into, its the vertical. coz this is a vertical sync problem.
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