Outline Of Printed Circuit Boards - Fujitsu DL7600 Maintenance Manual

5.3.1.1 Outline of Printed Circuit Boards

Main board (HGC07**)
This printed circuit board consists of three basic blocks: the main control circuit, interface circuit, and drive circuit blocks.
The main board has the following ten connectors:
No. Name
１
Centronics connector
２
Control panel connector
３
Power supply connector
４
Carriage board connector
５
Head cable connector
６
Space motor cable
７
Line feed motor cable
８
Tractor motor cable
９
Sheet feeder cable
10 Sensor board connection cable
11 USB connector
12 RS232C connector
13 Ribbon feed motor cable
14 Power supply FAN connector
15
Space motor driver FAN connector
16 Space motor FAN connector
17 Head FAN connector
18 Inter rock connector
Power supply board (KA0071/KA0076)
This printed circuit board supplies logic power (+5 V) and driving power (+40V) to the main board.
The driving power can be turned on and off by the control signal (PWSTOP) from the main board.
This printed circuit board has an AC inlet for AC cable connection, the AC switch, and main board connection harness.
Control panel board (GAO99BA/LCD02BA)
This printed circuit board has printer status display LCD/LEDs and mode setting switches.
It also has the main board connector (CNOP).
Abbreviation Connection destination
IFCEN Host computer
CNOP Control panel board
CNPW Power supply board
CNHD3 Multi-sensor for detection of left and right ends
FCNHD1
Print head
FCNHD2
CNSP Space motor
CNMLF Line feed motor
CNTLF Tractor motor
Front:CNFCSF Sheet feeder connector board
Rear:CNRCSF
CNSEN Mechanism board (sensor board)
CNUSB Host computer
CNFRS Host computer
CNRF Ribbon feed motor
CNFAN1 Power supply FAN
CNFAN2 Space motor driver FAN
CNFAN3 Space motor FAN
CNFAN4 HEAD FAN
INLK Inter rock switch
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