Stryker 3000 - Page 47

Chapter Three – Troubleshooting Guides
47
3.8 SIDERAIL CONTROL PANEL LIGHTS TROUBLESHOOTING GUIDE
(CONTINUED)
PROBLEM/SYMPTOM SOLUTION(S)
Siderail control lights do not activate/deactivate
(continued).
D. If problem still exists, check litter CPU board
(p/n 3000–300–941) backlight ground potential
with digital ground.
Backlight ground: connector P10/P11, pin 9
Digital ground: connector P9, pin 7 (see page 199
for board location).
If backlight ground is not the same as digital
ground with siderail control lights activated, re-
place litter CPU board (see page 115). Prior to
replacing litter CPU board, check +5 VDC at con-
nectors P10/ P11, pin 5. If voltage is not present,
check fuse F1. If fuse is O.K. and problem still
exists, check for 110 VAC at connector P1, pin 18.
If 110 VAC is present, replace litter CPU board
(see page 115).