Pls find the attachment.
After setting the circuit (using mt8870) , when I switch on the circuit LEDs 1,2,3, & 4 are all suddenly ON without detecting ring volt and key press. Does this mean the IC is out-of-work. I have only one IC, otherwise I would have gone for IC replacement.
After setting the circuit (using mt8870) , when I switch on the circuit LEDs 1,2,3, & 4 are all suddenly ON without detecting ring volt and key press. Does this mean the IC is out-of-work. I have only one IC, otherwise I would have gone for IC replacement.
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