There are a few threads on the forum which talk about bad caps in the 19M009. Initial issue in July 2015 was a bad rectifier which was replaced along with the main 120uF 400V cap. Since C200 and CE103 were questionable bulging they were also replaced with Nicicon's from Digikey in July 2015.
In July 2018 the monitor stated going black after about 3 to 5 MINUTES. There is also a momentary buzzing/chirping sound when the monitor first starts until an image is displayed and when it goes black. I've opened the unit again and pulled the DAC. There are no obvious bad caps. Notice the heat discoloration around U202 and U203, it was there before the repair also. When powering the unit the temp on U203 runs about 92 F while U202 is 105 F. I've read that these P605's are like the HOT of the inverter and can generate a lot of heat. Should they be running different temps? But they seem to check ok with resistance in circuit. I have a 19M008 schematic, not a 19M009 but I believe the layouts are similar and only the component labels are slightly different.
I'm not sure where to start. Should I test voltages with digital VM?
Looking for help on this reliable daily user from my spouse. She is using a Dell 19" 4:3 in the meantime and misses her wider 16:9 screen. Happy wife is happy life, and my wife is not happy right now... So any help is appreciated.
Cheers, BrianA_MN
In July 2018 the monitor stated going black after about 3 to 5 MINUTES. There is also a momentary buzzing/chirping sound when the monitor first starts until an image is displayed and when it goes black. I've opened the unit again and pulled the DAC. There are no obvious bad caps. Notice the heat discoloration around U202 and U203, it was there before the repair also. When powering the unit the temp on U203 runs about 92 F while U202 is 105 F. I've read that these P605's are like the HOT of the inverter and can generate a lot of heat. Should they be running different temps? But they seem to check ok with resistance in circuit. I have a 19M008 schematic, not a 19M009 but I believe the layouts are similar and only the component labels are slightly different.
I'm not sure where to start. Should I test voltages with digital VM?
Looking for help on this reliable daily user from my spouse. She is using a Dell 19" 4:3 in the meantime and misses her wider 16:9 screen. Happy wife is happy life, and my wife is not happy right now... So any help is appreciated.
Cheers, BrianA_MN
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