Motorola GM140

iv
Chapter 3 TROUBLESHOOTING CHARTS
1.0 Troubleshooting Chart for Controlhead GM140/340/640 ....................................3-1
1.1 On/Off .................................................................................................................3-1
1.2 Microprocessor ...................................................................................................3-2
2.0 Troubleshooting Chart for Controlhead GM160/360/660 ....................................3-3
2.1 On/Off .................................................................................................................3-3
2.2 Microprocessor ...................................................................................................3-4
2.3 Display ................................................................................................................3-5
2.4 Backlight .............................................................................................................3-6
3.0 Troubleshooting Chart for Controlhead GM380/1280 .........................................3-7
3.1 On/Off .................................................................................................................3-7
3.2 Microprocessor ...................................................................................................3-8
3.3 Microprocessor ...................................................................................................3-9
3.4 Display ..............................................................................................................3-10
3.5 Keypad Backlight ..............................................................................................3-11
3.6 Display Backlight ..............................................................................................3-12
Chapter 4 CONTROLHEAD PCB/SCHEMATICS/PARTS LISTS
1.0 Allocation of Schematics and Circuit Boards.......................................................4-1
2.0 Controlhead GM140/340/640 - PCB 8486146B07 / Schematics.........................4-3
2.1 Controlhead PCB 8486146B07 - Parts List .........................................................4-6
3.0 Controlhead GM160/360/660 - PCB 8486155B06 / Schematics ........................4-7
3.1 Controlhead PCB 8486155B06 - Parts List ......................................................4-12
4.0 Controlhead GM380/1280 - PCB 8486178B03 / Schematics............................4-13
4.1 Controlhead PCB 8486178B03 - Parts List .......................................................4-18