Hi,
I am just started to play with PCB. A friend of mine's temp control unit from a freezer room has broken down. The unit was first have intermitten fault with the display, flash a few time then died. Funny enough, the buttons all working properly but just no display.
First thing come to my mine was capacitors. replaced all capacitor but still not working. After has a very close look, a what seems like a ceramic dipped capacitor have a darker colour ring. So I guess there are a leak. It has 3 lines of markings. First line, CSA, second is 8.00MT, third line is something like a key symbol then a letter B.
Try search the internet, the marking suggest this is a resonator.
Would you guys say the display fault would be caused by this resonator and has this resonator has a build in capacitor?
I am just a newbie, so the question might be a bit silly. Apologise in advance and many thanks for your help.
Thank you!
I am just started to play with PCB. A friend of mine's temp control unit from a freezer room has broken down. The unit was first have intermitten fault with the display, flash a few time then died. Funny enough, the buttons all working properly but just no display.
First thing come to my mine was capacitors. replaced all capacitor but still not working. After has a very close look, a what seems like a ceramic dipped capacitor have a darker colour ring. So I guess there are a leak. It has 3 lines of markings. First line, CSA, second is 8.00MT, third line is something like a key symbol then a letter B.
Try search the internet, the marking suggest this is a resonator.
Would you guys say the display fault would be caused by this resonator and has this resonator has a build in capacitor?
I am just a newbie, so the question might be a bit silly. Apologise in advance and many thanks for your help.
Thank you!