★The JET-1046 Step by Step Card used the hardware control to halt the CPU, then latch the address data and control signal on the card. The technician uses the card in working motherboard firstly, then record the address, data and control signal result for each CPU Halt step. For debugging stage, technician does same way and records, the results that will be compare with working motherboard’s result to find the defects.(This tools is useful to debug for address or data bus problem)
