Siglent spd3303x-e reboot problem

[tautech]

As this Florida man pointed out, it is hard to access the other side of the board to remove the bad bridge rectifier.

Yet the control/front panel PCB is not at all difficult to remove.

A few leads, and screws and the complete front panel is free along with the control PCB.
Binding post screws and PCB mount screws removed the PCB can be worked on with ease and another replacement rectifier solution fitted.

As it's for LV AC and the DC smoothing circuit remains on the PCB a replacement bridge can be mounted remotely with a 4 wire loom to a place where it's most convenient for those undertaking this repair.

With care and control of wayward swarf, one of the main heatsinks can be drilled and tapped to provide an excellent mounting position for a remote bridge.
It should be stressed that careful heat shrinking/sleeving of any wires be undertaken to prevent any shorts and care also with connections being correct. THe PCB is clearly marked as in expected for a bridge, AC + AC - as is normal for a bridge too.
Don't muck this up......

[tautech]

Hi yeah true but given consensus is bridge fails due to heat and that it is under-specified then probably best to replace with upgrade as rest of bridge probably will fail eventually.

Not IMO.

Early units had zero failures then something changed, where I suspect a different supplier was used or the bridge manufacturing process was changed....or both.