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The drive to the gate of that MOSFET is not PWM. That regulator is very much a linear series-pass setup. If there is anything other than a voltage there, then there is something very wrong, such as it has gone into an oscillation.

The community is going to be divided in this way. youll have the people who want big patch wires running all over their boards for a "replacement redesign" and you are going to have people who want to keep things as original as they can, but also working.

it is affected .I have one. I just use it as a test display now.

No, they dont need replaced. they need removed and checked. to make sure they are still good and traces underneath are fine. All three of them btw

Nice! Not that indifferent than using a pick and place with a glue nozzle and wave soldering the SMD side. ive seen that done many times

Yeah you need to get all the cap goo out of there including on the other side of the board, because it can eat away at the ribbon cables going to the LCD panel itself, and then its permanently destroyed. I have run into this and needed a new panel for mine years ago.

Better check all the voltages coming out of the DC-DC stages to make sure they are all present. I don't know what they are since I have not worked on a Duo in a very long time. But, they have to be checked to know if the regulators are working properly or not. IF they are, then likely one of...

Working on a new design to get around that problem. those chips aren't made anymore.

Sadly, no. Way too many projects, and not enough time nor motivation.

I just got his re-created Backlit LCD cable. ill be trying that this weekend i think.

Turns out the -5V issue was caused by bad chips from a supplier overseas (big shocker) those chips are expensive too, so I think the circuit will be re-engineered to choose a different part for -5V inverter rail generation.

It is already being worked on and basically functional. @androda has the lead here We haven't said anything about it publicly yet because its still very much a device-under-test. But, so far the 5.2V regulator is operating at around 5.6V, and he forgot a trace so he has to update the board...

Might be time to travel down the youtube rabbit hole and watch some videos of others working on/teaching how to troubleshoot electronics, and these things. But a hard short is basically anything on a power supply rail circuit that has a near 0 resistance to ground when its not supposed to...

Ok, there is enough information there to determine what it is. 12Mhz crystal. Thanks

Because something went hard short. its going to be one of two things. Either the horizontal output transistor shorted due to the flyback, or, one of the secondary rectifier diodes on the output of the power supply went hard short.

Perfect. I need to know more details on this particular part since its missing:

Ah dang, yeah i think theres parts missing on the back side so I dont have any reference photos. Like a crystal is missing. Thanks for the other pics, itll make it easier for capacitors.

Does anyone have good photos of the front and backsides of the tuner module? I received one that has been decapped, but i think its also missing a crystal but I cannot be too certain. thanks.

SYS_RESET should never toggle. You have something throwing an error on the bus, and the ROM is providing that reset signal because of a fatal error occurring too early in the boot sequence for any handlers to spit a code at you. What you need to do is decode the entire address range to figure...

Does anyone know what the software is called and where to download it? Thanks