Down4Sound JP63 Manual del usuario - Página 8

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The JP33, JP43, JP63 & JP 83 ampli ers have STATE OF THE ART protection features to prevent any damage from

misuse or faulty conditions. If the ampli er senses excessive heat, short circuited speakers DC or voltage,

the protection indicator will light, and the system will be turned o . In order to check the problem, you should

turn all level down and all power o and carefully check the installation for wiring mistakes or short, check

the subwoofer too. Sometimes spiders rip and they short the coil.

If ampli er shuts down due to excessive heat, it will work once it cools down. Check Bluetooth remote the temp

meter on hot days, and a er extensive us. Before removing your ampli er, refer the list below and follow

the suggested procedures

NO OUTPUT

1. Check remote turn-on voltage at ampli er and headunit, when remote turn-on voltage is low or

no turn-on voltage, ampli ers will remain o .

2. Check fuses at the ba ery side or external fuses and all wire connections.

3. Check RCA Input is properly connected.

AMPLIFIER SHUT DOWN ( PROTECTION )

1. Please check POWER, GND and REMOTE wire connection and other wires for proper connection.

2. When input voltage greater then 4V DC is present at the ampli ers RCA input, the amp will go into DC protect.

In this case, remove the RCA input cable.

Check whether the ampli er comes out of the protection. if it does, you will need to replace the headunit or

signal processing source.

3. If ampli er overheats, the thermal protection will turn o the amp. Ampli er will be back to work

a er cooling down a li le bit. Please install ampli er with be er ventilation to allow it to cool.

4. JP33, JP43, JP63 and JP83 have minimum working impedance of 1ohm as single unit and 2ohm for strappable

connection.

5. P33, JP43, JP63 and JP83 working voltage is 9V - 16Volts.

6. Make sure Chassis and Remote use same GROUND.

DISTORTION & NOISE

1. Please readjust ampli er input gain level which is printed on endplate.

2. Make sure there is a good ground connection for ampli er and headunit.

3. Use su iciently shielded RCA interconnects and good RCA routing. Avoid running RCA signal wires

near power cables.

4. Check all ground connections of all other audio equipment.

POOR BASS RESPONSE

1. Check speaker wiring and reverse polarity.