Main Pcb Assembly 119810; Keyboard/Display Assembly; Back Outer Case Assembly 119960S - Monarch 9460 Service Manual

9460 Service Manual
MAIN PCB ASSEMBLY
119810
The Main PCB Assembly contains the micro controller,
RAM, flash memory, reset circuitry, and the associated
electrical components. The system is designed with
minimum connections in the signal lines between these
basic parts, which form the heart of the system.
The micro controller used in the M09460 is a Motorola
MC68336GCFT20 micro controller operating at 18.35
MHz. This processor is a CPU32 micro controller plus
the additional TPU micro controller. The 68336 micro
controller has a 16 MB addressing range. The 68336
has on board port lines, A/D converter, timers, power
management, and a serial port, providing all the needed
resources on a single chip.
KEYBOARD/DISPLAY
ASSEMBLY
The Keyboard/Display Assembly must be ordered by its
individual components. It is made up of the display flex
120006, keyboard/display PCB 119956, keyboard
119953, display lens 119968, top case 119962, and
boot 11997206/08/09.
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The display is used to indicate the status of the printer.
If the printer is in diagnostics mode, the display is used
to lead the operator through diagnostics menus and
display the results of the diagnostics test. The bottom
portion of the display is also used to dynamically
change the functions of the three context-sensitive
keys. Because the display is used differently for each
function of the printer, please refer to the Operator's
Handbook for a complete description of the display
interface.
The keyboard/display PCB has a graphic display and
switch traces on its top surface. The key portion of the
design is made up of a molded elastomeric material
with conductive sections placed in the center of the
formed keys. The board traces are designed and
positioned under the keyboard so that when a key is
pressed and held, the switch circuit is made.
The keyboard has five keys: power, feed and the three
context-sensitive keys. The power key must be held
down for approximately one second to turn the printer
on or off. The feed key has two basic functions: feed to
top-of-form and as an escape key when in Diagnostics
or Configuration mode. The context-sensitive keys are
used for printer control, configuration and diagnostics.
The keys are used differently, depending on the mode
the printer is in. Refer to the Operator's Handbook for
more information on the use of these keys.
BACK OUTER CASE
ASSEMBLY 119960S
The Back Outer Case Assembly provides access to the
DB9 serial port through the 119965 door that has
locking slotted screws. It is designed to provide strain
relief to ensure a solid cable connection. Also on this
assembly are two of the four 119970 feet used for shock
resistance and stability.
Physical/Functional Description
January 2001