Do you have a question about the JD-MEDIA ZA-1240A and is the answer not in the manual?
Read all safety instructions before operating the ZA-Series.
Describes the intended applications and suitable environments for the ZA-Series amplifiers.
Information on rack mounting the amplifier with additional brackets.
Guidance on ensuring adequate airflow and preventing overheating.
Details on the amplifier's core components and protection features.
Lists various pre-amplifier functions and optional module connections.
Controls for adjusting input levels and equalization (Bass/Treble) for MIC/LINE inputs.
Explanation of the MIC 1, 2, 3 priority selector switch.
Volume and EQ adjustments for Remote 2, Input 3, and Line Level inputs.
Controls for activating and adjusting chime and siren signals.
Features for night ringer and paging via telephone.
The main volume control for all audio signals.
Covers MIC priority switch, P.T.T. remote jack, and MIC/LINE inputs.
Details on LINE-IN 4~5, recording output, and AMP IN/PREOUT connections.
Covers speaker zone outputs, low impedance, and telephone functions.
Details on message priority, DC power, and AC power inlet.
Information on ANT. terminal and remote control receiver.
Example wiring diagram for a restaurant sound system.
Wiring example for industrial enterprises and supermarkets.
Wiring diagram example for a school environment.
Details on automatic power supply and automatic alert voice message systems.
Operation of the talk switch and description of the DIN jack.