Renesas Single-Chip Microcomputer M37900T2-RPD-E Informations techniques télécharger pdf (Page 25)

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(3) Replacing the Oscillator Circuit Boards

Figures 3.5 and 3.6 show how to replace the oscillator circuit board. For the location of the oscillator

circuit board, see Figure 2.2.

(1) Remove the four screws of both sides of this product and lift off the upper cover. (see Figure 3.5)

(2) Unscrew the screw connecting the oscillator board.

(3) Lift off the oscillator board.

(4) Insert the connector J1 of the oscillator board to the connector J1 (or J2) of the interface board

M37900T-PRT.

(5) Fix the oscillator circuit board to the M37900T-PRT board with the screw.

(6) Replace the upper cover and secure the four screws.

Figure 3.6 Replacing oscillator boards

Figure 3.5 Removing the upper cover

CAUTION

When Removing the Upper Cover:

•Always shut OFF power when removing the upper cover or replacing oscillator

boards.

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Renesas Single-Chip Microcomputer M37900T2-RPD-E Informations techniques Page 25