Service manual

09/09 Rev. 5.02-02 SERVICE MANUAL Service Platinen
AP 4.4 – AP 5.4 – AP 7.t
5
AP4.4 Layout
Feed motor (CN601)
Punch sensor (CN905)
Ribbon sensor
(CN906)
Pressure lever sensor
(CN907)
Printhead Kyocera
KPA 104/KPA 106
(CN901)
LCD display (CN503)
JTAG for Debugger
and Boundary Scan
(CN301)
Function JP303 open
(normal operation)
JP303
closed
Boundary Scan On Off
Debug Port Off On
Signals I/O board On Off
Jumper Boundary
Scan
Debug
JP301
JP302
Centronics (CN501)
USB (CN302)
JP501 (normal
operation: open!)
JP502 (normal
operation: open!) Starts
micromonitor (internal
diagnostic software)
Power supply (CN701)
RS-232 (CN801)
Check LED motor
voltage, yellow (D20)
Check LEDs for core
voltages:
D10 red (left)
D11 green (right)