Zachry K1200D, Owner'S Manual

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9
ZACHRY CAR AUDIO
10
Symptom Possible Remedy
Amplifier
will not
power up Check to make sure you have a good ground connection.
Check that there is battery power on the (+)terminal .
Check all fuses, replace if necessary .
Make sure that the Protection LED is not illuminated.
Protection
LED Comes on
Check for short circuits on speaker leads.
Check the speaker load not beyond the minimum load.
Remove speaker lead, and reset the amplifier. If the protection LED still
Comes on, then the amplifier is faulty and needs servicing .
No output Check that the RCA audio cables are plugged into the proper inputs.
Check all speakers wiring.
Check the headunit output and the amplifier level setting.
Low output Reset the level Control.
Check the Crossover Control settings.
High hiss in
The speakers Check the RCA cable is not shorted to power ground at amplifier side.
Check the amplifier grounding.
Distorted sound
Check that the Input level control is set to match the signal level of the head
unit. Always try to set the Input level as low as possible.
Check that all crossover frequencies are properly set.
Check for short circuits on the speaker leads.
Amplifier gets
Very hot Check that the minimum load impedance for the amplifier model is correct.
Check that there is good air circulation around the amplifier. In some
applications, It may be necessary to add an external cooling fan.
TROUBLE SHOOTING
SPECIFICATIONS
Model
Zachry K1200D Zachry K475
Description
1200Wrms
Mono
4 X 75Wrms
RMS power at 14.4V
1 Ohm Load
2 Ohm Load
4 Ohm Load
1200 Wrms
700 W
450 W
NA
4 X 120 W
4 X 75 W
Features
Input Level
Frequency
Response
LPF
SubSonic Filter(HPF)
THD at 4ohm load
30% Rated Power
S/N Ratio
BassBoost
Best Effciecy
@ 4ohm
Minimum Load
Optional Remote
Low voltage
protection
ShortCircuit Test
@ max power
Overheat protect
temperature
Components & PCB
0.2~5V
10~220Hz 15 ~25KHz Hz
40~220Hz
50 ~750Hz Hz
50 ~750Hz Hz
10~50Hz
<0.3% <0.05%
>80dB
0-6dB-12dB switchable NA
>80%
>60%
1Ohm 2Ohm
YES
NA
Yes,protect < 8V
Pass
Protect at 80C / 176F
SMD parts / double side FR-4 pcb
Height
Width
Length
DIMENSION(mm)
54
140
261 255