Service manual

General

Descri~tion

EPL-5600/ActionLaser 1600 Service Manual

1.5.4

PWB-A

Board

This

is the engine controller board. It consists ofanM37451M48-bit CPU (including a MASK ROM)

and a gate array. The board controls laser

scannin

(the

polygon

mirror

drive motor), image

synchronization, laser beam pulse width, and power.

I I

“,.lfl

~M37451

Figure 1-20.

PWB-A

Board

1.5.5

PWB-E

Board

The

PWB-E

is the power supply board, which consists of a switching regulator circuit. It converts

the AC line voltage into +24 V and +5

VDC

voltages. There are two types of power supply board,

the 100/120 V type and 220/240 V type. The difference between the two circuits is only in the input

section.

not touch

VRIE

PWB-E

board. This volume is for

factoy

setting only.

VRIE

❑

Figure 1-21.

PWB-E

Board

1-36

Rev.