Re: Samsung LN40B550 turning off after 5 min.
Problem solved. I replaced all caps on the board and found shorted diode near STR-W IC. After replaced diode everything back to normal.
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Re: Samsung LN40B550 turning off after 5 min.
Site cannot be open due to some connection time limit... I'll try later. Anyway thanks for info. I'll post a message when I will find a solution.
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Samsung LN40B550 turning off after 5 min.
Hello everyone!
I got Samsung LCD LN40B550 K1F that is shooting down after 5 minutes of work. Result of powering off is overheating of STR-W6252 in PSU unit (BN44-00264B with LCD inverter integrated). When I unload capacitors and cool down STR it can turn on but after 4-5 minutes the same problem. I'm trying to find why STR is overheating. When I attatched larger radiator to STR it was working longer , but this is not a solution. PSU or whole TV schematic will be appreciated.
Any ideas?
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