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EPSON EPL-N1600 Chapter 3 Troubleshooting

Rev. A 70

1.4 SERVICE REQ E0005

Fan IOT unit or Duplex Unit Fan is in trouble.

Step Actions and Questions Yes No

SUSPECT COMPONENTS

The followin

g

components are

associated with this specific problem.

One or more of these components ma

y

have failed partiall

y

or completel

y

. If

y

ou

cannot isolate the problem usin

g

this

FIP, replace each component listed

below, one at a time, until the problem

disappears.

• Fan IOT

• Fan Assembl

y

Duplex

•HPS

• PWBA Hotaru

• C258MAIN Board

1

FAN IOT

Does the Fan rotate when

y

ou switch on

printer power?

Go to step 3. Go to step 2.

2

FAN SIGNAL

1. Disconnect P/J222 from the HPS.

2. Check the volta

g

e between P/J222-3

and P/J222-1.

Is there +12~24VDC between P/J222-3

and P/J222-1?

Replace the

Fan.

Replace the

HPS.

3

PWBA HOTARU

1. Remove the PWBA Hotaru.

2. Check for the continuit

y

between P21-

B2 and P31-B12.

Is there continuit

y

between P21 and

P31?

Replace the

C258MAIN

Board.

Replace the

PWBA Hotaru.