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TVs

toshiba mod: cl20r31 does not turn on

EGA2020
EGA2020
65
hace 5 años
hace 5 años
Toshiba TV does not turn on, on pin 7 power of the micro tmp87cm38n I have no voltage and on pins 5 and 6 of the memory eprom pin 5 has 1.5 volt and on pin 6 it has zero volt check the panel buttons and everything is fine, If someone can advise me, I would appreciate it in advance, thank you very much since I don't know how to deal with this problem.
Fernando Barillas Corona
hace 5 años
hace 5 años
Greetings Ragde2016, because according to what you say, you should remove the memory and you should have approx. 5 V, maybe the memory is short, if you do not have problems at the source, also remove the microphone, it may be short, the case is that you must first have 5V to be able to turn on, luck and value.
EGA2020
EGA2020
65
hace 5 años

thanks friend fernando at the moment I don't have a memory although in pin 8 of the memory I have the respective 5 volts

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EGA2020
EGA2020
65
hace 5 años

I just put the pin 7 power dl micro on the air and the reset voltage of pin 33 5volts and 5volts appeared on pin 5 of the eprom and 5volts on pin 6 but it appears and disappears

Responder
EGA2020
EGA2020
65
hace 5 años

good afternoon already turned on the TV I commented re-soldered pin 7 of the micro and desolde the data and clokc of the eeprom and nothing again soldered them and took off the data and clokc of the micro and the voltages appeared and I thought it was the micro and I soldered them again and to my astonishment the voltages were still present, leaving the TV ok, I guess it was a cold solder or the microphone had been blocked with this I give x this repair finished I hope that the comment is useful and thank you very much to the friend Fernando x his support, until next time.

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EGA2020
EGA2020
65
hace 5 años
hace 5 años
good morning everyone, still without solving the problem if someone can provide me with the diagram of the tac9936 chassis
EGA2020
EGA2020
65
hace 5 años

good afternoon already turned on the TV I commented re-soldered pin 7 of the micro and desolde the data and clokc of the eeprom and nothing again soldered them and took off the data and clokc of the micro and the voltages appeared and I thought it was the micro and I soldered them again and to my astonishment the voltages were still present, leaving the TV ok, I guess it was a cold weld or the microphone had been blocked with this I give x this repair finished I hope that the comment is useful and thank you very much to the friend Fernando x his support, until next time

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