2-18 Installation & Wiring
16 15 14 13 12 1
1
10 9
8 7 6 5 4 3 2 1
-
Output Transistor Replacement
Check Fuse First
If all of the transistor outputs fail to work, check the 1A fuse shown in Figures 17 & 18.
Also check to be sure that a 10–30 VDC power supply is connected to TB 11, Figure 6.
Correct Problems
Chips will most likely be damaged by one of two events:
• A short circuit connected to one of the transistor outputs.
• A load exceeding 50 mA connected to one of the transistor outputs.
Before replacing a transistor output chip, fix the problem that damaged it.
Proper Placement
When replacing a chip, be sure that all of the pins are properly seated in the socket.
Position the notch on the end of the chip as shown below.
Figure 18—Transistor Chip Replacement
Position Notches
Like This
1A Fuse for
Transistor Outputs—
If blown, no transistor
outputs will work.
See Figure 17
for testing.
Chips for
Outputs 9–16
• Replace 2580 first.
• Replace 2803A if
that doesn’t work.
Chips for
Outputs 1–8
• Replace 2580 first.
• Replace 2803A if
that doesn’t work.
Empty
Socket Holes (2)
Position Notches
Like This
Jumper Block & Chip
For Outputs 9–16
• Jumper block
does not normally
need replacement.
Jumper Block & Chip
For Outputs 1–8
• Jumper block
does not normally
need replacement.
1A Fuse for
Transistor Outputs—
If blown, no transistor
outputs will work.
See Figure 17
for testing.
PS-6244-24-N16M09
Sinking Outputs
PS-6244-24-P16M09
Sourcing Outputs
Replacement Part Numbers
Description
ECC Part #
UDN 2580
PS-9011-2580
ULN 2803A
PS-9011-2803
DIP Jumper Block
PS-9006-0015
TB 11
TB 10
TB 11
TB 10
TB 9
TB 9
16 15 14 13 12 1
1
10 9
8 7 6 5 4 3 2 1
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