Should be strobe to op2. Typo 
Help with scantronic 9751 and new sounder
- Thread starter Dmurph
- Start date
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internal sounder ? is it a speaker ? disconnect and check with multimeter it should be 32, 16. 8 ohms if not it is probably blown speaker.
Hi there. Just replaced with new internal speaker. Just run a test and sound coming from speaker is very faint.. Tried increasing chime volume. No joy. Any ideas? Thanks again for help this far...almost have a functioning system again
I
IanGillan
With the speaker disconnected, using a multi meter set on Ohms tell us the reading.
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it will be greater than 200Meg untill you tell him where to put the probes.
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