Microphone in hands-free system not functioning or blasted - AF82.70-P-6006A

MODEL 129, 140, 202, 210 with CODE (313) D-network "portable CTEL" 

	Cause	Remedy:
	Microphone and control unit not compatible.	1 Check microphone and control unit. Correct assignment: Active control unit 140 820 83 26 Passive microphone 140 820 14 35 resistance approx. 2 kΩ (marked with white tag) or Passive control unit 140 820 84 26 Active microphone 202 820 06 35 resistance approx. 600 Ω 2 Replace microphone.