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TVs
Tv trc with small black spot on the screen
23
hace 5 años
hace 5 años
Hello dear friends of the forum ... I have a hitachi tv model cdh-21bus2 uslim ... which has two black spots on the screen ... the first fault that the TV had was that the PTC was defective which I changed it to What did I have on hand (it is not new) ... when turning on the TV this fault appeared ... could you guide me with this fault ?? ... Regards
1.684
hace 5 años
hace 5 años
Hi Raul, try disconnecting the demagnetizing coil to see if it does the same problem. (With image do you do the same?)
23
hace 5 años
Hi Jose, I have already disconnected the coil and still do the same thing ... with the image it does the same, it is as if it were doing a cushion effect ...
1.684
hace 5 años
Comment on what brand and model the TV is. It has happened to me that this fault can be corrected from the Service Mode, particularly by adjusting the Horizontal parameters.
1.684
hace 5 años
No, you need the remote RCA. To enter the service mode you must follow the following sequence with the remote keys: CHANNEL No. - MUTE - AP: PROG - NORM IMAGE
23
hace 5 años
Hi Jose ... I can get control now as I proceed ?? is the first time I will use the start menu ... thanks
1.684
hace 5 años
To enter the service mode you must follow the following sequence with the remote keys: CHANNEL - MUTE - AP. PROG - NORM IMAGE - Try to do it quickly, without interruption.
1.684
hace 5 años
Once you enter, the FACTORY sub-menus are presented. In FACTORY 5 there are the items to correct the Horizontal parameters.
1.684
hace 5 años
It is always convenient before modifying the parameters, write down the original values on a paper, in case you have to return to the values that were already there.
23
hace 5 años
Thank you very much José Luis Carpi for the help provided .... I have already solved the TV problem with the procedures you explained to me ... thanks and a hug
23
hace 5 años
hace 5 años
hello jose apologies I was wrong about TV ... the one with the problem is an RCA model RAR 2108USL USLIM ... I don't know how to enter the service mode since I do not have the control .. I will try to get it to try to solve that way ... can you enter service mode without control?
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