Epson LQ-510 - RESET Pulse Oscillation Process (Module Removed)

REV.-A
PRINCIPLES OF OPERATION
When the ROM cartridge is removed (see Figure 2-38), the CAR terminal of the gate array (7A) receives a HIGH
signal, the DISC terminal then outputs a LOW signal ( 1 ) and the ROUT terminal outputs a RESET signal
( 2 ). The remainder of the sequence is similar to that which occurs when a ROM cartridge is mounted; please
refer to the preceding page.
CAR
DISC
THLD
Terminal
Terminal
Terminal
ROUT
Terminal
RESET Signal
Figure 2-38. RESET Pulse Oscillation Process (Module Removed)
LQ-510
2-31