Hitachi Televison & Video - Page 5 - Recent Questions, Troubleshooting & Support

If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ Line, faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.

Without a remote control, you can't unlock it. If you wish to buy its original remote control, contact the authorized service centre, or authorized dealer to your device brand. They can either give you a genuine remote control to your device, or can direct you, from where can you purchase a suitable one. To select a proper universal remote control, you should know about the number of digits to its set-up codes. There are 3 digit, 4 digit, 5 digit, 2 digit and even single digit codes, to some brand devices. After confirming this, check the sites linked here. Both the sites have set-up code list and set-up procedure to many popular brand remote controls. Check which brand remote control has set-up code/s to your device brand, and buy that one according to availability? Brand name of the remote control isn't a matter, but it should have set-up codes in its code list, to the device brand you have. Please note: Every new universal remote control will have set-up code list, and set-up procedure along with its pack. Never accept a remote control, that hasn't both of this. For more details about the set-up codes, visit the site http://electrohelponline.blogspot.com/ Check this site too. http://remotesearch.blogspot.com/ Universal remote controls are available at most of the electronic spare part selling shops; and by Online shopping.

My tv say execute channel scan

Simple answer to volume problem i have found there is a demo button on the tv which automatically turns everything down.

New screen, likely not cost effective

If your picures are all purple it means that the green colour is missing. TV colour is made up by mixing Red, Green & Blue. Removing Green leaving Red & Blue makes purple. Study the green colour circuit for a fault and confirm that the green gun inside the tube is working.

Can you please reword your question, and provide detail of the problem and what you are trying to do

Hello,

The issue you describe is consistent with a power supply board issue. This is the board where the AC goes to. This problem may have occurred as a result of irregular power supply, or excess power supply or power surge.

The TV is receiving current but cannot circulate or transfer the current to other necessary part of the TV because of the defective power supply board.

I do not think it needs replacement, rather some defective capacitors are causing this issue.
Open unit up and take a look at the power supply board.You will probably see one or more electrolytic filter capacitors that are bulged up in the top-not perfectly flat like the others.

The value of these capacitors will be different, most likely they will be somewhere around-820 to 2200uF/25 V( or /10V sometimes)

You can replace them with same values but I would recommend the voltage rating to be higher(like 35V for an original 25V) for reliability purposes.

What happens is,these bulged top capacitors will cause a low and unfiltered DC voltage=main board will malfunction(the relay will keep clicking until the caps are holding enough charge to bring the voltage up over a threshold point).

You can buy these capacitors at any Fry's or Radioshack store or you can order them online at vendors like "mcmelectronics.com"(look for electrolytic capacitors).
After replacing these capacitor(capacitors) most likely the normal operation will be restored.

Note: There may be also some other causes for this symptom ,like a defective T con board ,or main board,but the bulged top capacitors are the most common cause for this issue.

If you don't know about TV repairers, take the TV to the nearest repairman to fix the fault for you. Also, note that TV stores a lot of current, so wait a while before opening the TV back cover.

Good luck.

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You should only ever take the back of any electrical device if you know what you are doing. A lot of people have been electrocuted whilst working on electrical devices or they have cause damage leaving the TV useless. If you know someone that has has experience of disassembling electrical devices or repairing them, ask them to do the cleaning.

The panel control board on the tv is faulty. Try disconnect the panel connection form the main board and the check. If you wish to get some details; check the site linked here. Pull up older posts. http://electro-medical.blogspot.com/

Display control unit is goosed.? Display cable has come loose.?

To do a factory reset (System reset); you have to enter its service mode option. Like older model TVs, there is no switch marked "Reset"; to latest model sets. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. Do a search by type in the brand name of your device at its search box and press "Enter". http://electronicshelponline.blogspot.com/ Service mode entry, adjust and exit procedure to many popular brand TVs are given. Never forget to exit the service mode, after all adjustments have been done.

Replace the main board. Parts on eBay or internet.

Check if there is a reset button on the back or located by the power button on your tv hope this helps

in the menu , the display or video settings should have different video display settings such as 16:9 , 1:1 , 14:9 ect... these will change the video display to different sizes

Main digital board fault. Check and replace it. Contact any service technician. If you wish to get more details visit the site linked here. http://electronicshelponline.blogspot.com/

i'd say it's a ghost or a psychic power or a force from outer space you better be careful those things are scary