User`s manual

LTO

Further Information

Due to the nature of our digital sound processors, there are operational tips too numerous to include in an instruction

manual such as this. For additional information, please visit our website at www.altomobile.com, which includes technical

support and customer discussion forums, together with a downloads section for software updates, technical papers etc.

Troubleshooting

Power LED not lit: Is the Remote switch cable from the source unit (Cassette or CD Player) attached to the REM terminal

of the UCS PRO, and is the source unit switched on? Are the +12V and GND (Ground) terminals connected correctly?

Is the Ground cable properly attached to the chassis of the vehicle or to an existing ground point that is known to be OK?

No Sound: With the UCS PRO connected to your PC (running the PC Editor), check that none of the output channels

are set to MUTE. Adjust the level of the Input Gains. Adjust the level of the Output Gains. Are the Input and Output signal

cables correctly connected?

If there is only sound from one channel, swap the Left and Right channel Input cables at the UCS PRO - if the fault moves

to the other channel then the fault is with the cable or the CD or Tape player. If the fault remains in the same channel,

isolate which speaker is not working and trace the circuit back to the amplifier channels that are driving that pair of sp-

eakers. Swap the Left and Right channel Output cables at the UCS PRO. If the fault still remains on the same speaker

then the fault is with a cable or a unit after the UCS PRO (the power amplifier or the speaker itself). Check the amplifier

gain controls and any input switching options (such as built-in crossover networks). If the fault moves to the other speaker

then the UCS PRO may be faulty - leave it installed in your system and return to your dealer so that they can check it.

Distorted Sound or Low Volume: Adjust the Input and Output Gains of the UCS PRO via the PC Editor or the optional RM2

Programmer. Adjust the Input Level Controls of the power amplifier (and input/output controls of any additional processor,

if applicable). Check if the amplifier has a built-in crossover network - is it switched correctly?