Motorola CM160 Service Information - Page 18

Browse online or download pdf Service Information for Two-Way Radio Motorola CM160. Motorola CM160 26 pages. Commercial series controlhead
Also for Motorola CM160: User Manual (5 pages), User Manual (46 pages), Basic User's Manual (12 pages)

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Motorola CM160 Service Information
3-6
2.3
Button/Tones Select Error (Page 2 of 2)
on DTMF keys
Button/Tones Keys
Key_Col
Voltage
(TP401)
0.008 V
0.675 V
1.346 V
1.997 V
2.650 V
3.300 V
A
Right
No
Voltage
?
YES
Okay
0.008 V
0.675 V
4
8
#
Left Key
Down
P1
Does Q41
No
on Control Head
operates well
?
YES
Replace U8
on Control Head
Key_Column Voltage TP401
1.346 V
1.997 V
1
2
5
6
9
0
C
B
Right Key
P3
P2
TROUBLESHOOTING CHARTS
Replace
Q41
2.650 V
3.300 V
Up
3
7
*
A
P4
Idle