B4R Question Sonoff Dual Smart Switch WiFi - Fuse?

[hatzisn]

Hi all, this is the SonOff Dual Smart Switch WiFi:

Do you see in these pictures anything that looks like a fuse? I am confused and I suspect that the yellow thing next to the two Electrolytic Capacitors and the blue ceramic in the upper left of the front size is a Fuse and not a capacitor . The kind of gold thing that is next to the connectors is a bridge between two solderings (or maybe a heat sink?) and certainly not a fuse. Can someone more exprerienced aknowledge that this the case? If not please point me to the right direction.

 

[hatzisn]

I mean besides MTS1A (the black box between the transformer and the yellow thing). Sonoff Dual is rated for 10A and I was looking for something that big.

 

[f0raster0]

maybe it can help:

https://wiki.iteadstudio.com/images/1/1d/Sonoff_Dual_View.pdf

Looks like the fuse P1 was replaced for a jumper/bridge - check on the PCB if you can read P1

 

[thetrueman]

On the back of PCB, BR1 is Bridge Rectifier.
MTS1A on the front of PCB is fuse of 1A 250V rating.
The load rating 10A is of Relay Load Capacity which don't have any fuse connection.

 

[peacemaker]

Just for reference: i have reanimated my old VB5 tool of 2001, to investigate a PCB at both sides at once.
Maybe can be useful for such tasks.

 

[hatzisn]

Just for reference: i have reanimated my old tool of 2001, to investigate a PCB at both sides at once.
Maybe can be useful for such tasks.
View attachment 132617

Hi, it looks good in the picture but virustotal.com presents from malwarebytes that it is malware.heuristic.1001.

 

[hatzisn]

@peacemaker I took advantage of your idea and created for everyone this attached tool by manipulating Erel's zoomable panable imageview.

[B4X] ZoomImageView - Cross platform zoomable + pannable image view

A custom view that shows an image and allows the user to zoom and pan the image. Instructions: - Add with designer. - Call SetBitmap. Updates: v1.05 - Base_Resize is public. Call it after resizing the view in B4A. v1.04 - Fixes an issue in B4i where the image jumps when switching from pinch...

www.b4x.com

I only messed with the B4J layout and code. Great tool to have. It just displays - it does not create .sch and .netlist files.

 

[peacemaker]

virustotal.com presents

Spoiler: 0 of 88, looks OK

advantage of your idea and created for everyone this attached tool

Great! Just add 2 cursors over both images to see points.