Unit Interface; Led Array - Printronix L5535 Maintenance Manual

Pin
1
2

Unit Interface

LED Array

Connection
The LED array is connected to the head driver on the MC board and to the
LED drive power supply on the main power supply, as shown in following
diagram:
LED Drive Power Supply
(part of Main Power
Supply)
CN12
CN2
Interface Signals
The following signals are sent and received between the head driver and the
LED array:
Table II–63. Connector CN14
Abbreviation
PFN+ DC Power Supply Box Fan Drive (+ Side)
PFN– DC Power Supply Box Fan Drive (– Side)
Head Driver
(on MC Board)
CN2
CN1
LED Array
Power Supply Connectors
Head Driver ⇔ LED Array
Signal
Clock (CLOCK)
Data 1
Data 2
Data 3
LED Array
Signal Name
Signal Connector
CN3
⇒
⇒
⇒
⇒
II–221