georgios Posted August 7, 2020 Posted August 7, 2020 There is a tiny speaker/beeper on my car’s instrument cluster pcb.This speaker gives the warning tones when a door is open or seatbelts are not fastened etc.The problem is I have lost these warning tones while warning lamps are good.Ι took out the pcb,desoldered the suspicious speaker/beeper and tested it with ohmmeter.The indication was infinite.This is all I’ve done and need your help.The part I’ve meusured,looks more like a buzzer,DIGISOUND is typed on it and some letters and numbers but without ohms and watts indication.Any ideas and advice is wellcome! Thank you in advance.https://postimg.cc/XGyFKzRfhttps://postimg.cc/KkNK5h9ghttps://postimg.cc/rD1tp4SJ/fd91cad5 Quote
Vauxhall Owners Club Posted August 10, 2020 Posted August 10, 2020 Hi....welcome to the Forum Infinite usually indicates an open circuit but not sure whether a buzzer would have a resistance and even then not sure what it should be. I would be tempted to look on ebay for anything that looks similar and test it out on the board, worst case scenario it may operate at a higher or lower sound pitch Let us know how you get on with it Quote
georgios Posted August 10, 2020 Author Posted August 10, 2020 Thank you for the welcome message! I've spent hours on internet and eBay searching for this part.Finally,I've found it,https://www.pololu.com/product/1261,but discontinued....It's a 100ohm speaker! I let you know if there is any progress. Quote
Vauxhall Owners Club Posted August 13, 2020 Posted August 13, 2020 Look forward to knowing if it works okay Quote
georgios Posted August 20, 2020 Author Posted August 20, 2020 https://export.farnell.com/projects-unlimited/ast-030c0mr-r/loudspeaker-sub-miniature/dp/1192971?ost=100ohm+speaker&cfm=true UPDATE! Warning tones are back! I put the above 100ohm speaker and,finally,I have my tones back,but with much less sound level!Tried to level up the sound on P7 secret menu but with poor essults. I'm a little disappointed. Quote
Vauxhall Owners Club Posted August 21, 2020 Posted August 21, 2020 Thanks for the update and nice to know it was the buzzer at fault. Also, nice to know the specs are different therefore only generating quieter tones .... but at least you have the tones back now Quote
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