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AR-SP6N/RP6N

ELECTRICAL SECTION

– 20 –

8

7

6

5

4

3

2

1

A

B

C

D

1

2

3

4

5

6

7

8

D

C

B

A

AR-SP6N/RP6N

ELECTRICAL SECTION

– 21 –

CN3(B7B-PH-K-S)

1

A

2

/A

3

/B

4

B

5

N.C.

6

24V1

7

24V1

1

24V1

2

/GSOL

CN4(B2B-PH-K-S)

2

5V

1

5V

4

5V

3

W3

6

/PSOL

5

W0

8

Pull up

7

W1

10

/RSOL

9

W2

12

24V1

11

24V1

14

SGND

13

L2

16

SGND

15

L1

18

SGND

17

SGND

20 SPFCOVER 19

PA PER

CN6(B20B-PHDSS)

1

24V1

2

N.C.

3

/CLH

CN7(B3B-PH-K-S)

25

24V1

26

24V1

23

PGND 

24

PGND

21

SPFPSOL

22

PDOWNB

19

SPFCLH

20

PDOWNA

17 SPFRSOL 18 /SPFMODA
15 SPFGSOL 16

SPFMODA

13

5V

14

/SPFOUT

11

YSPF

12

SPFOPEN

9

SGND

10

SGND 

7

SELC#

8

N.C.

5

SELB#

6

/SPFMODB

3

SELA#

4

SPFMODB

1

PA PER

2 /SPFCOVER

CN5(B26B-PHDSS)

1

SGND

2

/SPFOUT

3

5V

CN2(B3B-PH-K-E BK)

1

SGND 

2

SPFOPEN

3

5V

CN1(B3B-PH-K-R RD)

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 sol-

dering 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 com-
pletion 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

q

2004 November Printed in Japan 

t



Printed in Japan.