Epson 7000 Summary of Control Circuit Operations, 21. C299MAIN Board-Circuit Block Diagram

EPSON Stylus Pro 7000 Revision B

2.4 Summary of Control Circuit Operations

This section summarizes the functions of the (C299MAIN) Main Board and the controls used to operate the printer.

		5VDC	28VDC 42VDC
IC8	CN7		-2VDC
CPU/C90A14CA	Control Panel

	IC80	IC15	3.3V
Reset	RESET IC	REGULA
			DC
signal		TOR

	IC69 BUS DRV/
		CN1
IC13	LV161284	Parallel I/F
ASIC/E05B61AA
		CN2
		Type-B Slot
	Stop signal
	IC62 USB CTRL/	CN3
	USS725	USB I/F
	IC39
	SRAM/8KB
			IC61
		EEPROM
IC9	IC73,74,75,76	D/A adj.,
E06A4610A	DRAM/8MB		USB-ID
	IC81,82
	DRAM/2MB

							IC1,2	-Firmware
						Flash ROM/1MB		-D/A adjustment,
								setting parameters
							CN20
						PCMCIA CARD Socket
								Head-drive wave
						Head		generation
		IC32		IC20				IC37
			ASIC/TE7751			data&
	ASIC/uPD65802						DAC/M65530FP
drivers	IC33	IC35	IC30	IC41	IC43	control	B head	C head
							Head-drive
Motor
						signals	voltage common
							driver

Printer	CR	PF	Pump	Fan	Fan
						Printheads (B/C)
					cutter
mechanism	Motor	Motor	Motor	Motor
				x2	solenoid

Figure 2-21. C299MAIN Board-Circuit Block Diagram

Operating Principles Summary of Control Circuit Operations 76