Intermec EasyCoder PD42 - Page 83

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