1-5
1.8 DIP SWITCHES
Table 1-8 shows the functions of the DIP switches on the
CPU and MOTOR boards.
The settings enclosed in indicate the factory settings.
1.10 REPLACEMENT OF IC14 ON THE CPU BOARD
(1) A special tool is available for use in removing IC223 (please
purchase SUN HAYATO Model GX-8 or similar tool
separetely). Two small screwdrivers can also be used in place
of the special tool.
(3) When inserting the IC, align the IC orientation and fit it into
position with a finger, taking care that the attached IC is not
tilted.
(2) When using the special tool, fit sections A of the tool into
grooves B on the opposite corners of the IC socket and re-
move the IC as if pinching it up.
When using small screwdrivers, fit their tips into the grooves
ay the opposite corners of the IC socket and remove the IC
as if pulling it up.
Fig. 1-10 (b)
A
B
B
Fig. 1-10 (c)
Fig. 1-10 (a)
Table 1-9
Symbol No.
Part No.
Å
SCV2803-1325B
ı
SCV2803-2425B
Fig. 1-9
Table 1-8
1.9 SERVICING OF DSP, MOTOR AND CPU BOARDS
Although the DSP, MOTOR and CPU boards are hardly
accessible for servicing, the access for their servicing can be
assured by using extension cables
Å
×
2
ı
as shown in
Fig. 1-9.
Board
CPU
MOTOR
Symbol No.
S2-1
S2-2
S2-3
S2-4
S2-5 — S2-8
S5-1 — S5-4
S1-1 — S1-4
Function
Sets the communication mode.
OFF : Point to Point
ON : Multi-Drop
Sets the communication direction
OFF : Duplex
ON : Simplex
Termination resistance
OFF : Not inserted
ON : Inserted
Switches the internal and external
sync (power line lock)
OFF : Internal sync
ON : External sync (line lock)
Not used. Set to OFF.
Not used. Set to OFF.
Not used. Set to OFF.
* For S1, S3 and S4 on the CPU board, also refer to page 15
of the instruction manual.
Å
Å
ı