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I bought a gb500+ with dead cells and remade the packs entirely. Its the version with 2x 12v packs and 1x 4v pack. I plugged pack B into the pack B plug and A into A but the side opposite to the cable connectors popped and sparked when I tested the unit in 24V mode (switched on fine in 12v mode). From viewing some videos on youtube it is possible that pack B actually plugs into the pack A plug on the board, so I swapped them around and it booted up fine in both modes but read as having a flat battery. I unplugged the board that is soldered to the 4v pack and then the jump starter worked as normal, allowing to override on both 12 and 24v and showed it as correctly fully charged. This makes me suspect a fault in that board. Unfortunately I mucked around with it and plugged the pack A into pack A plug and B into B again and the main board smoked. I quickly put them in the opposite plugs and rebooted it and now it always has some of the face lights on all the time, but still works if I unplug the board soldered to the 4v pack. Only the bottom 12v pack plug actually powers the unit however, if I just have a pack in the top plug it wont boot up/turn on. I hope this information is enough to estimate how difficult it would be to diagnose/fix.

Check the circuit board and a couple of wires and connected parts to identify part to change for a beauty machine.

Replace a component (supplied) In Coburg North, Victoria

Sliding gate control board repair

Need someone experienced with PCB/electronics repair to replace a faulty triac/component on a control board. Parts supplied. Small soldering/desoldering job on circuit board.

Our washing machine circuit board is faulty would anyone know how to fix it or atleast try ??

I have installed blackvue 750-2ch camera in my car. At the moment the dashcam runs on the battery power. when the engine is turned off. as a result car battery is drained and I cant turn on y car. I want the settiing on the circuit board to be changed in a way the dashcam is turned off when the car is turned off.

The key is for a mercedes benz w140, year 1992. the infa red is not working.

Seat switch from a 1988 Mercedes

Electronic circuit board for Autel Ikey needs button replacement

Something just broken off it looks like it was a black square thing

Need some pins soldered into a board

Have no hybrid car & want a 15amp PowerPoint installed next to switchboard

Replace a relay on a circuit board

Replace existing resistor on circuit board

Smeg dishwasher requires troubleshooting and soldering of circuit board. Must be qualified appliance electrician.

Soundbar subwoofer not powering on.

Repair damaged circuit board for treadmill burnt out electrical tracks and chip, possibly other damage.

Replace a capacitor (10 uf 400v) on a circuit board for a washing machine. Will need to remove existing capacitor (may require cutting through plastic and/or waterproof resin), replace capacitor, including soldering, and reseal. Parts (capacitor and silicone I will cover in addition to fee). You will need to bring soldering equiptment and anything required to remove capacitor from resin/casing. Thank you for considering this job

Just need the circuit board for my standing desk re-soldered. I tripped over the cord and screwed it up. I unsoldered it and cleaned it up, but it’s too finicky for my amateur self to put back together because there isn’t a lot of wire left, and it needs to go through the back of the plastic unit that holds the circuit board (see picture 2).