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[DETECTING CIRCUITS OF THE PROTECTION]

1 AMP DC DETECTION CIRCUIT

2 AMP OVERCURRENT DETECTION CIRCUIT

3 AMP FAN DETECTION CIRCUIT

4 AMP POWER LINE DETECTION CIRCUIT

[AFTER THE DETECTION]

When above four detection circuits detect the error, the set(M-EV51) enters to the stand-by mode.

Then the stand-by LED blinks and it becomes unable to turn on the power for 60 seconds.

This mode can be cancelled by entering to the TEST MODE at Media Part XV-EV51.

Refer to the protection power off timming chart next page.

7.1.2 OPERATING CONDITION FOR FAN

1) After M-EV51 is set to be turned on the power, the fan rotates at low speed under 13V.

2) When CN3501 Pin3 (H/L CONT) becomes about 0.6 ~ 0.85V, the fan rotates at high speed of 20V.

SP-TERMINAL ASSY

E-VOL ASSY

SP-TERMINAL ASSY

E-VOL ASSY

AMP REG FAN ASSY

M-EV51