The t.v has double lines on each figure and words. The sound works fine. On the circit board i found resistant number RK58 burnt. What could be the possible cause of this problem ?

Check its back light inverter board. Replace it if found faulty.

you have the DP23 chassis IK04 is a STK392-110 and IK05 is the stk392-150 the two resistors RK58 is a 4.7 ohm 1watt metal film resistor and RK62 is a 2.7 ohm 1watt metal film resistor. Only use metal film 1watt 5% resistors

check for bad circit board or for a bad ground on that light and circit board.

The DP1X was used in various Hitachi Models and those resistors have different ratings depending on the Model number. Post your model number and I can list the ratings for those resistors for you. Also do you mean RK50, RK54 and RK58 as those are convergence resistors board location prefixes that usually get blown. Double check the Prefixes.

RK50 = 2.7 1W p/n AT03202S
RK54 = 1.8 1W p/n AT03195S
RK58 = 4.7 1W p/n AT03206S
Available in Part Store, (write part number in search bar)
STK392-110 is also available in Part Store.
Hope this will help you.
Thanks.

On modern electronic control ranges, the oven temperature sensor
is the part that regulates the oven temperature. If it is not working properly it could be the reason why the range or oven won't start. This part can be found inside the oven on the rear wall near the top. Most modern ovens will display a fault code if the oven sensor is at fault. If you think the sensor may be the issue you can check the resistance with a multi-meter but will need to know the correct resistance of the sensor at room temperature. Remove power from the appliance before performing this test.
1.Aclicking sound could be something wrong with a relay. Check for any loose connections around the main control board on your oven. The click you hear is a relay losing power and switching back on. If the clock resets then something is causing power interruptions to the board.
2.
3.Even a bad relay door switch will hinder your oven from operating.

If your oven has internal fuses, a wiring or component problem could have caused a fuse to blow. A blown fuse is an indication that a component has shorted or failed, and the problem will need to be corrected. Most ovens that use fuses will have an indication of the circuits that are affected by a particular fuse. If an oven fuse has blown, then you should inspect the oven element and the associated wiring to determine the cause before replacing the fuse.

IF you can solder you can fix it yourself.

Replace Both STKs Big black ICs and several resistors RK42 3.3 RK46 1.8 RK50 2.7 RK54 1.5 RK58 3.9 RK62 2.2

Its best to replace both IC's. As far as the resistors, there are location #'s marked on the board where the resistors are mounted. If any look burnt, get the location numbers off the board, and your model # and email me @ [email protected]. I will get you the resistor values.

if you found the burnt resisters after you replaced the ic you probably burnt the ic out again,

Is this a Hitachi set? If so then check the model number and be sure it's right.