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4.4 INSERTING MCU INTO PROGRAMMING ADAPTER
As shown in Figure 4.2, insert the MCU into the IC socket, with the pin No.1 of the MCU matched
to the pin No.1 of the IC socket on the PCA7414.
Be careful when inserting the MCU because incorrect insertion can cause
fatal damage to the MCU.
Top view
Pin No.1 of MCU
Figure 4.2 Inserting the MCU
4.5 PRECAUTIONS WHEN OPENING AND CLOSING IC SOCKET
When opening and closing the IC socket to insert the MCU, hold the adapter horizontally. Otherwise
the inside of the IC socket may become damaged and cause an electrical insulation failure. Figure
4.3 shows in diagrammatic form the opening and closing of the IC socket.
Side view
Figure 4.3 Opening and closing the IC socket
4.6 PRECAUTIONS WHEN HANDLING ADAPTER
Don't touch the connector in the IC socket and the pins on the PROM programmer connector lest
it cause an electrical insulation failure because of dirt.