20" Mitsubishi tv model:CS-20SX1
20" Mitsubishi stereo (with audio ouput jacks)tv
model:CS-20SX1,year:Aug 1992.Originally the tv would shut off once a week then once a day then every few hours now the tv shuts off 2 seconds after turn on.There is hv during those two seconds but no raster and the flyback seems to make a slightly different noise,I don't have a flyback tester so I will try to use the technique at: http://www.iwaynet.net/~nesda/flypoor.html and by removing the HOT transistor and placing a 100 watt lamp between collector pin and ground and see if the power supply is fine. I would like to know what the culprit would be,also a this tv had the following parts replaced by another repair shop a week ago: C909 C908 C515=3300 Uf,16V C516=3.3 Uf,25V R531=470 ohms,2W Also I would like to know the generic,Mitsusbishi and other OEM part #'s for IC3A3 which is a 10 pin audio IC taken by the prior repair shop. To familiarize you with this chassis it uses the following parts: Flyback # 334P21001 (location: T551),Asti Magnetics # 2944 http://www.astimag.com Yoke # 330P15203 Q503=2SD1879 IC401=LA7837 Thanks in advance Sidney Dartmouth,Nova Scotia |
20" Mitsubishi tv model:CS-20SX1
These caps are all common failures.....best to just replace them
Check C519 100 Ufd 50 V (105c) Off The Collector Of Q507 On The Main Pcb. Check C517 1 Ufd 50 V (105c) Between Base And Emitter Of Q506 On The Main Pcb Check C520 1 Ufd 50 V Between Base And Emitter Of Q505. Check C518 33 Uf 50v. It Is Across C-E Of Q506, X-Ray Protect Circuit. C518 Is 33 Uf 50v. It Is Across C-E Of Q506, X-Ray Protect Circuit.MITSUBISHI CS20SX1 ================================================== ========= Shuts Down Or Intermittent Start Up. Would Have To Unplug To Start Again Samtronix - Sam Jalal Problem Was In The X-Ray Protection Circuit Found C523 Located Under The Pc Board Was Open Also Found C519 Leaky And Replaced C518 And C515 --------------------------------------------------------------- -- ========================== Jeff Stielau Shoreline Electronics Repair 344 East Main Street Clinton,CT 06413 860-399-1861 860-664-3535 (fax) ========================== "If you push something hard enough it will fall over." Fudd's First Law of Opposition - Sir Sidney Fudd "Sidney" wrote in message om... 20" Mitsubishi stereo (with audio ouput jacks)tv model:CS-20SX1,year:Aug 1992.Originally the tv would shut off once a week then once a day then every few hours now the tv shuts off 2 seconds after turn on.There is hv during those two seconds but no raster and the flyback seems to make a slightly different noise,I don't have a flyback tester so I will try to use the technique at: http://www.iwaynet.net/~nesda/flypoor.html and by removing the HOT transistor and placing a 100 watt lamp between collector pin and ground and see if the power supply is fine. I would like to know what the culprit would be,also a this tv had the following parts replaced by another repair shop a week ago: C909 C908 C515=3300 Uf,16V C516=3.3 Uf,25V R531=470 ohms,2W Also I would like to know the generic,Mitsusbishi and other OEM part #'s for IC3A3 which is a 10 pin audio IC taken by the prior repair shop. To familiarize you with this chassis it uses the following parts: Flyback # 334P21001 (location: T551),Asti Magnetics # 2944 http://www.astimag.com Yoke # 330P15203 Q503=2SD1879 IC401=LA7837 Thanks in advance Sidney Dartmouth,Nova Scotia |
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