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MX-FN11  ELECTRICAL SECTION  10 – 10

Among the LEDs and check pins installed to this machine, only
items required for field service are shown below.

CAUTION: The check pins not shown in the lists should be handled

in workshops only, and special tools and measuring
instruments are required for more precision, if they are
used for adjustment and check. Thus, they should not
be handled by any person other than our field staffs.

SW1

For input of adjustment of alignment position/staple 
position 

SW2

For input of adjustment of alignment position/staple 
position 

SW3

For startup of adjustment of alignment position/staple 
position 

SW4

For startup of adjustment of alignment position/staple 
position

Switch

Function

SW601

Adjustment mode settings

SW602

Start and confirmation of adjustment and entry

SW603

Confirmation

CN22 CN23

CN24

CN14

CN15

CN13

CN17

2
1

CN19

1

8

CN18

4

1

CN16

24

13

CN20

CN25

CN26

CN27

16

1

2

1

2

4 1

1

6

1

8

C177

C174

1

9

1

1

7

6

1

1

4

1

5

1

5

1

4

15

1
2

1
2

1

7

1

3

10

7

1

1

11

20

18

9

10

20

11

1

12

1

1

8

9

1

10

CN21

CN7

CN28

CN6

CN3

SW4

CN1

CN11

CN2

CN4

CN5

SW3

SW1

SW2

CN12

CN8

4

1

J604

2
1

J603

1

3

J601

A13

A1

J605

A1

A11

J607

SW601

4

1

J606

1

6

J602

1

7

J608

SW602
SW603

 

No part of this publication may be reproduced,
stored in a retrieval system, or transmitted in
any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, without
prior written permission of the publisher.

ALL RIGHTS RESERVED.

The PWB’s of this model employs lead-free solder. The “LF” marks indicated on the PWB’s and the Service Manual mean “Lead-Free” solder.
The alphabet following the LF mark shows the kind of lead-free solder.

When repairing a lead-free solder PWB, use lead-free solder thread.
Never use conventional lead solder thread, which may cause a breakdown or an accident.
Since the melting point of lead-free solder thread is about 40°C higher than that of conventional lead solder thread, the use of the

exclusive-use soldering iron is recommendable.

Since the melting point of lead-free solder is about 220°C, which is about 40°C higher than that of conventional lead solder, and its soldering

capacity is inferior to conventional one, it is apt to keep the soldering iron in contact with the PWB for longer time. This may cause land

separation or may exceed the heat-resistive temperature of components. Use enough care to separate the soldering iron from the PWB when

completion of soldering is confirmed.
Since lead-free solder includes a greater quantity of tin, the iron tip may corrode easily. Turn ON/OFF the soldering iron power frequently.
If different-kind solder remains on the soldering iron tip, it is melted together with lead-free solder. To avoid this, clean the soldering iron

tip after completion of soldering work.
If the soldering iron tip is discolored black during soldering work, clean and file the tip with steel wool or a fine filer.

5mm

Lead-Free

Solder composition

code (Refer to the

table at the right.)

Solder composition

Sn-Ag-Cu
Sn-Ag-Bi
Sn-Ag-Bi-Cu
Sn-Zn-Bi
Sn-In-Ag-Bi
Sn-Cu-Ni
Sn-Ag-Sb
Bi-Sn-Ag-P
Bi-Sn-Ag

a

b

z

i

n
s

p

Solder composition code

a

 

* Applicable to battery-operated equipment

* Applicable to battery-operated equipment

First Edition: 2008 October
Latest Edition: 2014 May