Polar V800 Barometer/Altimeter Replacement
ID: 152468
Description: If the V800 barometer/altimeter measurement sta...
Steps:
- Disassemble the bracelet and open the watch (refer to the tutorial on replacing the motherboard Polar V800 Motherboard Replacement)
- Disassemble the mother board (refer to Polar V800 Motherboard Replacement)
- The barometer is visible inside the red circle on the photo
- Using a small flat screwdriver or pliers, remove the red seal around the barometric sensor.
- The sensor is strongly glued and welded on the mother board. Beware of the micro components positioned nearby, avoid taking support on them when removing the seal.
- Unsolder or cut short the black/red wires soldered on the casing.
- A blue dot allows the good position/orientation of the component. Take note of the position of this dot prior removing the faulty component.
- Component ref MS580502BA01-50
- With a 350°C soldering iron and a desoldering wick remove as much solder as possible. Then try to remove the component with angled pliers
- It is likely that the component wont come out (solder below it + component glued to the board). The only solution that I've found was to cut to pieces the component with mini cutting pliers.
- The target is to get a somewhat clean and flat surface where to put the new component while keeping the soldering pads and without destroying nearbie components. That is the most complex operation.
- Put a VERY SMALL drop of glue (no cyanoacrylate, use a glue that solidifies slower like epoxy so that you can correct misplacement of the component) in the component placement area and put it in there (take care to place the component so that the blue dot is at the right position!)
- Solder the 4 contacts with a thin head soldering iron. The use of flux will probably help since the solders are very small.
