Troubleshooting Charts; Controlhead Failure - Motorola CM Series Service Information
Commercial series controlhead
Hide thumbs
Also See for CM Series:
- Service information (90 pages) ,
- Service, maintainability (26 pages) ,
- Basic service manual (74 pages)
Table of Contents
Advertisement
1.0
Controlhead CM140/CM340 Troubleshooting Chart
1.1
Control Head Failure
TROUBLESHOOTING CHARTS
Control Head Check
No
Back light
OK ?
YES
Power-up
No
Alert Tone
OK ?
YES
Power-up
No
Red LED
Flash?
YES
No
Channel
Display
OK?
YES
Up/Down
P1 and P2
No
Alert Tone
Buttons OK?
YES
EXT
No
PTT
OK ?
YES
No
Communication Ok
Control Head is OK
Check 9.3V on
R808, R809
Check Speaker
Connection
Check
D801, Q806, U801
Check
DS801, U801, U802
Check R845, R846
R810, R811
Check Q801, Q802
Check Q803, Q812
Chapter 3
Hide quick links:
Advertisement
Table of Contents
