Motorola GM328

ii
4.10 Speaker (Remote Mount Configuration only)...............................................2-13
4.11 Electrostatic Transient Protection.................................................................2-13
Section 3 Troubleshooting Charts
1.0 Controlhead GM328 Troubleshooting Flow Chart ...............................................3-1
1.1 On/Off ............................................................................................................3-1
1.2 Microprocessor...............................................................................................3-2
2.0 Controlhead GM338 Troubleshooting Flow Chart ...............................................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 Controlhead GM398 Troubleshooting Flow Chart ...............................................3-7
3.1 On/Off ............................................................................................................3-7
3.2 Microprocessor ..............................................................................................3-8
3.3 Microprocessor (cont.)....................................................................................3-9
3.4 Display .........................................................................................................3-10
3.5 Keypad Backlight .........................................................................................3-11
3.6 Display Backlight .........................................................................................3-12
Section 4 Controlhead PCBs / Schematics / Parts lists
1.0 Allocation of Schematics and Circuit Boards.......................................................4-1
2.0 Controlhead GM328 - PCB 8486146B07 / Schematics.......................................4-3
Controlhead GM328 - PCB 8486146B07..............................................................4-3
Controlhead GM328 - Schematic Sheet 1 of 2.......................................................4-4
Controlhead GM328 - Schematic Sheet 2 of 2.......................................................4-5
Controlhead PCB 8486146B07 Parts List..............................................................4-6
3.0 Controlhead GM338 - PCB 8486155B06 / Schematics.......................................4-7
Controlhead GM338 - PCB 8486155B06..............................................................4-7
Controlhead GM338 - Schematic Sheet 1 of 4.......................................................4-8
Controlhead GM338 - Schematic Sheet 2 of 4.......................................................4-9
Controlhead GM338 - Schematic Sheet 3 of 4.....................................................4-10
Controlhead GM338 - Schematic Sheet 4 of 4.....................................................4-11
Controlhead PCB 8486155B06 Parts List............................................................4-12
4.0 Controlhead GM398 - PCB 8486178B03 / Schematics.....................................4-13
Controlhead GM398 - PCB 8486178B03 .............................................................4-13
Controlhead GM398 - Schematic Sheet 1 of 4.....................................................4-14
Controlhead GM398 - Schematic Sheet 2 of 4.....................................................4-15
Controlhead GM398 - Schematic Sheet 3 of 4.....................................................4-16
Controlhead GM398 - Schematic Sheet 4 of 4.....................................................4-17
Controlhead PCB 8486178B03 Parts List............................................................4-18