LOGO STATUS.
AP F8.9 bit is provided with a built-in control that manages its status and protects the circuits and connections
to the speakers. The logo on the AP F8.9 bit top cover will change its status in case of any possible product
malfunctions.
A BLUE logo means:
AP F8.9 bit is on.
Flashing RED/BLUE logo means:
The “UPGRADE MODE” switch on the product is set to “ON” position, or the product Firmware is being updated.
Flashing BLUE logo means:
The unit is in stand-by (energy saver) because there is no audio signal. This function (AST) can be activated using
the PC software. (see sec. 7.3.4.7) and the stand-by time ranges from a minimum of 5 mins. to a maximum of 20 mins.
The unit will automatically turn off after 30 mins. when there is no signal.
Flashing RED logo means:
- AP F8.9 bit temperature reached 75° C and the thermal protection was triggered. It will start operating again at
around 70° C.
RED logo flashing twice every second means:
- Output overload. The red LED flashes when the output load goes below the minimum allowed capacity of about
2Ω impedance. The LED comes on without flashing, activating the protection. When listening to music, if the
acoustic reproduction stops for a few seconds, check if the red amplifier LED is flashing. This means there was
an overload. Turn the amplifier off and check the speakers and wirings. This protection is self-restoring.
- Speaker wiring anomaly. The red LED flashes when a terminal on the speaker goes in short-circuit with the
vehicle chassis. When listening to music, if the acoustic reproduction stops for a few seconds, check to see
if the red amplifier LED is flashing; this means there was a short circuit between a terminal on a speaker and
the vehicle chassis. Turn off the amplifier and check the speakers and wiring. This protection is self-restoring.
RED logo flashing four times every second means:
- The “OVER VOLTAGE” protection activation, due to the fact that the battery voltage is higher than 16V.
The product will turn off after 3 minutes.
WARNING: check the state of charge of the car alternator.
RED logo means:
- Product internal fault. Please contact an authorized service centre. The product will turn off after 3 minutes.
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