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#41 |
Member
Join Date: Jul 2016
City & State: Sint-Truiden, Limburg
My Country: Belgium
Line Voltage: 240VAC 50Hz
I'm a: Hobbyist Tech
Posts: 20
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![]() I'm puzzled why it remains good as soon as it starts good.
Once running fine, I can tap on components and parts, it stays good. Running bad, it appears to be immune to mechanical interference like tapping or touching band wires. No impact at all. Ruling out connection issues is too soon, but not likely either. |
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#42 |
Badcaps Veteran
Join Date: Jan 2013
City & State: midwest
My Country: U.S.
I'm a: Knowledge Seeker
Posts: 8,191
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![]() have a dumb little sceptre does similar, when it starts up, will run for as long as it's on, turn it off and won't start up again, have to mess with it, turn on and off with remote real fast and sometimes will turn on and do the same, won't tune any channels unless I use an external tuner, no response from remote or panel buttons when in bad state, thinking it must be bad memory, ie, eeprom, spi, nand, whatever is present.
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#43 |
Badcaps Veteran
Join Date: Oct 2016
City & State: Bakersfield ca.
My Country: usa
Line Voltage: 120VAC 60Hz
I'm a: Knowledge Seeker
Posts: 2,809
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![]() Seems like a bad eemc or memory. If you have a programmer that can output print information during boot up. Maybe only way to solve this.
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I assume no responsibility for any stupid suggestions I might post. |
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#44 |
Member
Join Date: Jul 2016
City & State: Sint-Truiden, Limburg
My Country: Belgium
Line Voltage: 240VAC 50Hz
I'm a: Hobbyist Tech
Posts: 20
|
![]() I am on to something. If I apply 12v to the PNL power supply beforehand, the unit seems to start up correctly every time. I am going to use a scope to further investigate whether this voltage reaches the level quickly enough. If I do not find immediately why the power supply fails, I will install if necessary a separate 12v power supply for PNL.
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