It generally is caused by a failure of one of the following
IC1 (CD4013)
IC2 (CD4556)
IC3 (CD4011)
Easy fix if you do service work otherwise take it to someone who knows
what they are doing
IC1 (CD4013)
IC2 (CD4556)
IC3 (CD4011)
Easy fix if you do service work otherwise take it to someone who knows
what they are doing