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Re: no more picture
Usually this is a problem in teh vertical circuit and generally results in a thin horizontal line through the center of the screen. If that is the case, look for a small flat IC that may be marked LA7837 or someting similar with about 11 pins. This should be the vertical IC. Try resoldering the pins on the IC first. If that fails to resolve the problem, replace the IC. Please note that defective capacitors in the vertical circuit can cause this as well. The more probable defect is the IC. Update this with your results. Also be aware that there are potentially dangerous high voltages inside the set even when unplugged.
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Vertical hold needs adjustment. Check for vertical hold preset and adjust. If no preset present in the P C B of the TV, try through service mode adjustment. Service mode adjustment possible only by the authorized service provider.
This is a vertical problem that can be as simple as poor connections at the vertical IC or a defective IC. If you can solder, you should be able to fix this yourself. Realize that there are potentially dangerous high voltages present inside hte set even when unplugged. If you wish to attempt this repair, please update this and confirm your model number as DS31590 and I'll supply additional details and instructions.
This model is equipped with a self-diagnosis feature to help with diagnosis of shutdown problems. To activate this turn the unit on let it shutdown then press the input/device and menu buttons on the front panel simultaneously and hold them in for 5 seconds after 5 seconds the power LED on the front panel will blink a two digit sequence. This will be one set of blinks a short pause then another set of blinks, this will repeat 5 times. 1 - 2 = no error detected 2 - 1 = X-ray protect (high voltage or beam current) 2 - 2 = Short protect (short protect monitors low voltage supplies) 2 - 3 = Deflection protect (this could be loss of vertical or horizontal deflection) 2 - 4 = Vertical protect (usually loss of vertical from the source).
Good Luck, big IRISH>
this symptom, sometimes called the tube light effect, it is characterised by a bright thin horizontal line across the middle of the screen. this symptom is caused by a breakdown in the vertical deflection circuit. hence maybe the trouble maybe in the vertical oscillator, amplifier or output circuits. but if all i have said is not clear to you, better bring it to a qualified tv technician. good luck!