INDEX
23
X4 | SERVICE MANUAL
Alarm at power up
Fault in the Power Supply
Cause: +15V Stby voltage missing or lower than 13.5 V Check: Power supply leds condition (Stand alone)
Cause: +18Vdc Auxliary missing or lower than +16 Vdc Check: Power supply leds condition (Stand alone)
Cause: -18Vdc Auxliary missing or lower than -16 Vdc Check: Power supply leds condition (Stand alone)
Cause: Rail voltage +VCC < 40Vdc Check: Power supply leds condition (Stand alone)
Cause: Rail voltage -VCC > -40Vdc Check: Power supply leds condition (Stand alone)
8.3 On Auxiliary Voltage
Thermal Limiter ON
Pulsing YELLOW Centre LED: Power Supply temp. > 70°
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