Schematic Diagram - Component lead details – Disassemble Procedure
– Exploded View – Infinity Kappa Five Car Audio System
SCHEMATIC DIAGRAMS
Output Power: 50W RMS x 4 channels @ 4 ohms ≤1% THD + N
(14.4V supply) & 200W RMS x 1 channel @ 4 ohms; ≤1% THD + N
75W RMS x 4 channels @ 2 ohms; ≤1% THD + N
& 300W RMS x 1 channel @ 2 ohms; ≤1% THD + N
Bridged (3 channel) 150W RMS x 2 & 200W RMS x 1 @ 4 ohms ≤1% THD + N
Total Peak Power 1200W
Signal-to-noise ratio: 85dBA (reference 1W into 4 ohms)
100dBA (reference rated power into 4 ohms)
Frequency response: 10Hz – 75kHz & 20Hz – 320Hz (–3dB)
THD+N 1KHz LPF=22KHz ≤0.05% (rated power @ 4 ohms)
Output Regulation 0.03dB @ 4 ohms
Input Impedance >20K ohms
Maximum input signal: 6.0V
Maximum sensitivity: 200mV
Bass Boost @ 50Hz 0-12dB
Channel Separation ≥50dB
DC Offset <30mV
Idle Current @ 4 ohms 2.0A
Max Current Draw ≤80A
Remote Operating Voltages ON 5V OFF 4V
Turn On Delay Time (sec) 2 - 3
Circuit Protection Temperature (75C), Short circuit, over/under voltage
Operating voltage range (8-16V)
Dimensions: 14 x 7 x 1.7” (360 x 179 x 44mm)
Fuses: (2) x 40A
75W RMS x 4 channels @ 2 ohms; ≤1% THD + N
& 300W RMS x 1 channel @ 2 ohms; ≤1% THD + N
Bridged (3 channel) 150W RMS x 2 & 200W RMS x 1 @ 4 ohms ≤1% THD + N
Total Peak Power 1200W
Signal-to-noise ratio: 85dBA (reference 1W into 4 ohms)
100dBA (reference rated power into 4 ohms)
Frequency response: 10Hz – 75kHz & 20Hz – 320Hz (–3dB)
THD+N 1KHz LPF=22KHz ≤0.05% (rated power @ 4 ohms)
Output Regulation 0.03dB @ 4 ohms
Input Impedance >20K ohms
Maximum input signal: 6.0V
Maximum sensitivity: 200mV
Bass Boost @ 50Hz 0-12dB
Channel Separation ≥50dB
DC Offset <30mV
Idle Current @ 4 ohms 2.0A
Max Current Draw ≤80A
Remote Operating Voltages ON 5V OFF 4V
Turn On Delay Time (sec) 2 - 3
Circuit Protection Temperature (75C), Short circuit, over/under voltage
Operating voltage range (8-16V)
Dimensions: 14 x 7 x 1.7” (360 x 179 x 44mm)
Fuses: (2) x 40A
EXPLODED VIEW & COMPONENT LEADS IDENTIFICATION
CLICK ON THE PICTURES TO ZOOM IN
KAPPA FIVE DISASSEMBLY
INSTRUCTIONS. [NOTE
keep track and separate any and all screws; they are dissimilar.]
1) Remove the two screws at opposite ends on the bottom of the heat sink.
2) Remove the end panel on the Input side only, four Phillips screws.
3) Slide both pieces of silver trim off the heat sink.
4) Remove the top cover; it will be attached with a cable so unplug the
connector. For most component repairs on
the MAIN PCB, the entire PCB must be removed from the heat sink.
Note the 4 channel output MOSFETS (IRF6645) is an exception; skip to steps 1-5
below.
5) Remove the Output end panel, five Phillips screws.
6) Remove the terminal screws to the Power connections, and top row only of the
speaker terminals.
7) Remove the remaining four Phillips screws on the bottom of the heat sink.
There are two nuts which may spin on the machine screws; look at the top of the
PCB.
8) Remove all Phillips screws holding the Aluminum transistor clamps on; remove
the clamps. Two screws holding two
additional TO-220 devices should be removed.
9) Remove the Amplifier PCB; six Philips screws. The PCB will then pull
straight up and off the MAIN PCB.
10) Slide the complete PCB out of the heat sink channel.
Access to the (8) output MOSFETS Q3A,
Q4A, Q5A, Q6A, Q2, Q8, Q13, Q14
1) Follow steps 1~4 above.
2) Remove the two centermost screws on the bottom of the heat sink.
3) Follow step #9 above to remove the Amplifier PCB
4) Remove the gray heat sink from the PCB by grasping and pulling it straight
out it is only held on by friction from
the white heat sink compound.
5) The (8) output MOSFETS are underneath the rectangular insulator on the PCB.
Amplifier Troubleshooting Guide
Status LED on Amplifier not Lit - Head Unit (Source)
Turned ON Verify:
A. Remote turn-on wire from source to amplifier has proper voltage
B. Power (B+) connections at amplifier, terminal blocks, and battery are secure
C. Ground (GND) connections at amplifier and vehicle chassis are secure
D. Battery B+ fuse (if used) is OK
E. Amplifier fuse is OK
F. B+ at battery and B+ at amplifier has proper voltage
Status LED’s Lit, No Output from Speakers in Normal Operating Condition Verify:
A. RCA cables from amplifier to source are securely connected
B. Volume adjustment on amplifier is correctly adjusted
C. Source is ON and playing
Engine Noise From Speaker(s)
Turn source OFF, Disconnect RCA cables at amplifier. If noise stops, check
equipment & cables leading to amplifier.
Verify:
A. RCA cables are of good quality with no breakage to internal shields
B. RCA cables from source to amplifier are not run alongside any power cables
Amplifier Output Distorted Music
Verify:
A. Source output music to amplifier is not distorted
B. Source output sensitivity is correctly adjusted
Amplifier Shuts Down, Green LED’s are Lit - Amplifier is in Thermal
Protection Mode
Verify:
A. Amplifier is mounted with adequate air circulation around heatsinks or vents
B. Amplifier is not mounted under carpet or sealed enclosure
C. Speakers meet correct impedance for application (mono or stereo hookup)
Amplifier Does Not Turn ON, and Red LED is Lit Amplifier (and not Connected
to a Shorted Speaker)
Verify:
A. Speaker crossover (if used) is not defective.
