Troubleshooting; Specifications - AKG CM12/8 Manual

7. Troubleshooting

If your system malfunctions,you should attempt to correct or isolate the trouble before concluding
that the equipment needs repair. Make sure you have followed the setup procedure and operating
instructions. Check out the interconnecting cords and use the following short troubleshooting guide.
SYMPTOM
No sound from system

8. Specifications

Line Input
Type:
Impedance:
Input Gain Settings:
Maximum Input Level:
Line/Mic Output
Type:
Impedance:
Output Gain Range:
Maximum Output Level:
Attenuation in Mic Mode:
Maximum System Gain
Input to Output:
System THD:
System IMD:
System Noise:
System Frequency Response:
System Crosstalk:
Serial Communication (RS-232):
Power Consumption:
Weight:
Dimensions:
POSSIBLE CAUSES
1) Output level in the Off position.
2) No inputs (or incorrect inputs) sent to the output.
3) Rear panel Mic/Line dipswitch in the Mic position
(this would cause very low output).
4) Power is not on.
Electronically balanced and RF filtered
Greater than 10K, balanced or unbalanced
-6dB, 0dB, +3dB, plus Off
+20dBu at 0dB gain
Electronically balanced and RF filtered
Line: 600 Ohms balanced, 300 Ohms unbalanced
Mic: 125 Ohms balanced
+10dB to -68dB, 1dB increments, plus Off
Line: +20dBu
Mic: -20dBu
40dB
13dB
Less than 0.05%, 0dB input/output gain +10dBu out
Less than 0.05%, 0dB input/output gain +10dBu out
Less than -86dBu (20Hz-20KHz, Output at 0dB
gain, Inputs 1-12 at 0dB gain)
15Hz - 55KHz , +0/-3dB
Less than -55dB at 20KHz, less than -75dB at 1KHz
(Any single input driven to any output)
9600 baud, 8 data bits, no parity, 1 stop bit
10 Watts max at 20VAC
3 lbs, 4 ozs
19"wide x 1.75"high x 8"deep
Specifications subject to change without notice.
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CM12/8