Intermec EasyCoder PD41 Service Manual page 83

JTAG
USB D
RS232
RS232
driver
Ethernet
hdr
Option brd
IEEE1284
hdr
Option brd
24V 5V
24-to-5V 5-to-3.3V
5-to-1.5V
Main Board Block Diagram (PD41)
EasyCoder PD41/PD42 Printer Service Manual
Timers, GPIO
SPI
Timers, GPIO
CPU
NetSilicon
SDRAM
NS9360
Addr
MII
Buffers/Transc
1284
bus
I2C
3.3V
1.5V
5V driver
Str.+Latch
Latch
Crystals
Clock
Data
CPLD
FLASH
B-Addr**
B-Data
EEPROM
(Part No, Serial No,
** B-Addr is low order bits only
etc)
Chapter 3 — Replacing Parts
Stepper
driver
TPH
Cutter
LEDs
Button(s)
CompactFlash
Sensors
A/D
Dig. Pot.
69