DRM 85-C, DRM 85
09/2007
3/41
Contents
1 Controls and indicators..................................................................................4
2 Specifications ..................................................................................................5
3 Description ......................................................................................................7
3.1
Mechanical design ................................................................................................ 7
3.2
Electrical design .................................................................................................... 7
3.3
Functional description ......................................................................................... 7
3.4
Disassembly......................................................................................................... 14
3.5
Assembly.............................................................................................................. 21
3.6
Firmware including updates............................................................................. 24
3.7
Known faults ....................................................................................................... 25
4 Exploded view .............................................................................................. 26
5 Test and alignment instructions ............................................................... 28
5.1
Measuring set-up................................................................................................ 28
5.2
Test table ............................................................................................................. 29
6 Circuit diagrams........................................................................................... 31
Block diagram................................................................................................................... 31
AF board, circuit diagram ............................................................................................... 32
AF board, printed circuit board, component side ...................................................... 33
AF board, printed circuit board, solder side................................................................ 33
Connector board, circuit diagram ................................................................................. 34
Connector board, printed circuit board, solder side.................................................. 35
Connector board, printed circuit board, component side ........................................ 35
Keyboard PCB, circuit diagram ...................................................................................... 36
Keyboard PCB, printed circuit board, component side ............................................. 36
Keyboard PCB, printed circuit board, solder side....................................................... 36
Processor board, circuit diagram, part 1/3................................................................. 37
Processor board, circuit diagram, part 2/3................................................................. 38
Processor board, circuit diagram, part 3/3................................................................. 39
Processor board, printed circuit board, component side ......................................... 40
Processor board, printed circuit board, solder side................................................... 41