Fujitsu Aircon remote control

[t4796]

I managed to drop this recently. It fell flat and square onto the floor from about 1.8m. Can't remember if face up or face down.
The remote still kinda works but the display is blank and only shows up if I repeatedly flick the little silver crystal/oscillator looking thing on the board.

Not sure if this part is the culprit or if flicking it is moving something else, but it seems localised to that component as far as I can tell.

Having trouble working out the value of it since it doesn't seem to have anything other than a brand name printed on the side of it.

https://youtube.com/shorts/8NhO14M-J...CeodolPwOpk0qe

[stj]

the metal can is a crystal for the microcontroller - probably 32.768KHz
the blue thing behind it is a ceramic resonator.
resolder both

[truclacicr]

Can you hear any rattling if you shake the remote near your ear? If so, then the crystal has probably shattered. IIRC, this used to be a common problem with pagers.

[t4796]

the metal can is a crystal for the microcontroller - probably 32.768KHz
the blue thing behind it is a ceramic resonator.
resolder both

Thanks guys. I resoldered them previously but no change. I do hear a bit of a rattle when I shake it so I will replace crystal today and test.

[t4796]

Thanks for the help legends. Was the crystal.

[sam_sam_sam]

Thanks for the help legends. Was the crystal.

Great job getting it working again one less item at the landfill