Dazza Posted July 27, 2004 Report Share Posted July 27, 2004 I have a TV that decides to turn off after about 5 to 20 minutes. I found several components with the soldier lifted from the track. After soldiering them it stayed on for longer, I then found to of the rectifier diodes were blown and another that I cannot identify to replace, it has the numbers (30 40 and three dots). it is a 51 cm sharp television about eight years old. I know about releasing the charge from the capacitor that is the one that will throw you across the room. I would like to be able to look for problems with the television powered up. I will only proceed (only) if I am confident I can do so (safely) so could someone please help me with the (do and don'ts), safety procedures.Thanks in advance. Quote Link to comment Share on other sites More sharing options...
russlk Posted July 31, 2004 Report Share Posted July 31, 2004 For safety, keep one hand in your pocket and wear rubber soled shoes or work on an insulated surface. The high voltage won't injure you but you could be injured when you jump back. If you have overheating components, you have to find the cause before replacing parts. Check leakage of filter caps, etc. Quote Link to comment Share on other sites More sharing options...
tel1958 Posted August 5, 2004 Report Share Posted August 5, 2004 Hi,If you care to post the model number of the TV & the reference of the suspect diode (ie D1, D12 etc) I may be able to tell you what the device is. Quote Link to comment Share on other sites More sharing options...
Dazza Posted August 5, 2004 Author Report Share Posted August 5, 2004 Thanks tel1958 that would be great. (Printed on sticker on the back of TV)Sharp Corporation of Australia.Model NO.CX 48D3Serial NO.08744power supply 230-240~50 Hz,80wI am unsure of what numbers on the circuit board is too identify it. So I will tell you what I can see.On a sticker (CX48D3 M 588) (8185X0 51 700 ) and immediately below that printed on the circuit board (K8185WE)another number printed on the circuit board (PWBF8185PE). Sticker in centre of board (0338).The number for the diode is (D214). This is a bit of an overkill of information, the model number that matches with the number on the circuit board is probably all you need. Thanks in advance for your help. Quote Link to comment Share on other sites More sharing options...
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