T R O U B L E S H O O T I N G
Use the following guide to identify symptoms and solve problems. Make sure the vehicle’s electrical system is working properly and power is reaching the Kappa 54a (i.e., green LEDs on the top panel are on).
SYMPTOM | LIKELY CAUSE | SOLUTION |
No audio | Low/No Remote | Check connections; |
| test | |
| Speakers are not | Check wiring; use |
| connected or are | VOM/DVM to |
| blown | measure speaker |
|
| coil impedance |
Distorted audio | Input sensitivity | See Setting Input |
| is not set properly | Sensitivity on |
|
| previous page |
Audio lacks | Speakers are wired | Check polarity of |
“punch” | with wrong polarity | connections; refer to |
|
| Applications (page 3 ) |
SYMPTOM | LIKELY CAUSE | SOLUTION |
Audio cycles | A protection circuit | Verify the following– |
off and on; | is turning the | electrical system is |
Amber protec- | amplifier off and on | between 10 ~ 15.5 Vdc; |
tion LEDs (on |
| temperature is not |
top panel) are on |
| over 194°F (90°C); |
|
| no short circuits; |
|
| speaker loads are not |
|
| less than 1 ohm |
|
| (2 ohms in mono) |
Audio cycles | GAIN is set too high | Set Input Sensitivity |
off and on; |
| correctly (see previous |
Amber protection |
| page) |
LEDs (on top |
|
|
panel) are on |
|
|
Fuse blows | Incorrect wiring or | Check connections; |
| short circuit | refer to Applications |
|
| (see page 3) |
S P E C I F I C A T I O N S
K A P P A 5 4 A . . .
Power Output, 4 ohms: | 4 x 50 watts |
Power Output, 2 ohms: | 4 x 75 watts |
Power Output, Bridged 4 ohms: | 2 x 150 watts |
Frequency Response: | 20 Hz ~ 20 kHz |
Input Sensitivity: | 250 mV ~ 9 V |
THD + Noise (4 ohms): | 0.05 % |
> 95 dB | |
Maximum Current Draw: | 40 A |
Dimensions (w x h x l): | 16 x 2 3 ⁄16 x 81 ⁄2 in. |
| 406.4 x 55.6 x 215.9 mm |
®
©1997, Infinity Systems, Inc., 20630 Nordhoff Street, Chatsworth, CA 91311, USA
VOICE (818)
www.infinitysystems.com
Infinity constantly strives to update and improve existing products, as well as create new ones; therefore, the specifications and construction details in this and related Infinity publications are subject to change without notice. Unibloc is a trademark of Infinity Systems, Inc.
8 – Infinity Kappa 54a Power Amplifier | P/N SH1103 Rev. 2 |