SUNDOWN amplifiers have protection features to prevent any damages from misuse or faulty conditions.
If SUNDOWN amplifiers sense excessive heat, short circuited speakers DC, or voltage the protection
indicator will light, and the system will be turned off.
In order to check the problem, you should turn all levels down and all power off and carefully check
the installation for wiring mistakes or short.
If SUNDOWN amplifiers shut down due to excessive heat, they will be working later when it is cooled
down. Before removing your amplifier, refer to the list below and follow the suggested procedures.
Check remote turn-on voltage at amplifier and headunit, when remote turn-on voltage is low or
no turn-on voltage, there is no sound.
Check fuses at the battery side or external fuses and all wire connections.
Check RCA Input is properly connecte
Please check POWER, GND and REMOTE wire connection and other wires properly connected.
When DC over 4V come into the amplifier, amplifier is DC protected.
Pls check whether amplifier work after removing RCA-Input. if amplifier work, then check DC by
checking RCA-Input. When DC is over 4V at input, try by replacing head-unit or source.
When amplifier is over-heated, Amplifier goes into the thermal protection. Amplifier will be back
to work after cooling down little bit. Please install amplifier in better ventilation and make it cool.
SAZ-1200D, SAZ-1500D, SAZ-2500D & SAZ-3500D have minimum working impedance as 1ohm
as single unit. Linkable connection is 2ohm.
SAX-125.4 minimum working impedance is 2ohm stereo or 4ohm mono.
Make sure Chassis and Remote use same GROUND
Please readjust amplifier input level which is printed on endplate.
Make sure good ground contact of amplifier or headunit.
Use sufficiently shielded RCA interconnects and good RCA routing.
Check all ground connections of all other audio equipments.
Check speaker wiring and reverse polarity.
NO OUTPUT
AMPLIFIER SHUT DOWN ( PROTECTION )
DISTORTION & NOISE
POOR BASS RESPONSE
