Kenwood TK-190 Service Manual page 52

TK-190
KMC-25A External View
KMC-25A Specifications
Microphone
Impedance .............................. 1.6kΩ
Sensitivity ................................ –65dB± 4.0dB at 1kHz
Speaker
Impedance .............................. 16Ω
Input ........................................ 0.5W
Maximum input ....................... 1.5W
Dimensions .................................. 62 W x 81 H x 29 D (mm)
Weight (With plug cord) .............. Approx. 220g
64 2
KMC-25A (SPEAKER MICROPHONE)
KMC-25A Circuit Diagram
Universal
SP/MIC
connector
8.2mH
SP+
2
8.2mH
SP–
3
If the earphone jack output is too
high, adjust the value of resistor R12.
8.2mH
5V
11
Shield
8.2mH
MIC 5
+
10µ
More
than
25V
0.01µ
8.2mH
MIC E 6
+
8.2mH
PTT
7
8.2mH
PF
8
SSW
1
MSW 4
8.2mH
E
10
KMC-25A Parts List
Ref. No. New Parts No.
parts
A02-2092-08
A02-2093-08
B09-0382-08
D10-0629-08
E30-3429-08
J29-0644-08
J42-0495-08
S70-0459-18
T07-0359-08
T91-0625-08
N08-0535-08
R12 0
2.2K
68K
10µ
27K
6
8 –
+
7
10µ
10K
5
+
NJM3404
+
4
2.7K
ECM
SUB
+
PF1
Description
Case (Front)
Case (Rear)
Cap (Phone)
Lever (PTT)
Lead wire with plug assy
Clip assy
Bushing
Tact switch
Speaker
MIC element
Dressed screw
SP
Earphone
jack ø3.5
+
ECM
MAIN
SW1
PTT
PF2
∗ : New parts
Model