How to open service mode?
Visit this site. It has details about access service modes to most brand of TVs. Type in this link address, [without brackets] either to Google Search Box or into the Address Bar to your browser and press Enter. It has all the details about how to enter into the service mode to many brand TVs, and how to adjust data values. In name [Electro-Help]
electronicshelponline(.)blogspot(.)com
Ic number vertical
No Display no sound only power light on.
SOURCE: BPL BC-9 SERVICE MODE DEFAUT SETTINGS FOR BPL FZR 21
after some of starting the tv picture become dull n picture disapper but tv doesnt switch off
SOURCE: I am looking for Internal diagram - Service Manual for Sansui TV
I AM LOOKING FOR A CIRCUIT DIAGRAM OF A TV MODEL E2999 .THE COMPLETE BOARD OUTLAY AND DIAGRAM
SOURCE: on swiching on my sansui 21 inch tv it is
You are losing power in the vertical section. This will start with bad capacitors. Pay attention to capacitor (locations) C515, 25 volt@10MF, C423,[email protected], C407,35volts@ 100Mf, and C406,50 volts @1Mf.Please pay attention to any 50 volt 1 MF caps not mentioned. These are located near the audio IC, they are very small as the one mentioned earlier.Also, resolder the vertical IC, as there are rings around the pins at the bottom of the board. Start with these procedures and the picture will return and then sound will be stable. Be very careful when you you remove the capacitors. The traces are very small and delicate and you can destroy the TV. Once again....please very careful when you replace these components. Thanks for asking and show a few hands of support.
SOURCE: TV MODEL :SANSUI HARD ROCK
Hi The problem of your teevision is what we called the vertical line problem.The problem is in the vertical section of the board.There are many of cause of that problem.First is either loose connection,the circuit at the vertical section have cold solder so its need to resolder using soldering iron.Second,it maybe no vertical supply,its better to check the 12 volts dc supply of vertical ic output.if thers no supply in the ic,there a open resistor near the flyback.try to replace.Third if theres no loose connection and have a voltage supply the problem is either leaked capacitor or deffective vertical ic output. Commonly in that problem is the loose connection,try to resolder the verical section.
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