Zenith Data Systems Z-171 PC Series Service Manual page 81

Page 6-7
System Checkout and Troubleshooting
the one shown in Figure 6-3 and is value
equal approximately 300 VAC peak to
peak at 500 cycles/second? | In Im
CAUTION: Do not remove the P3 connector when the power is on. To
do so will damage the LCD assembly.
Im Replace the DC power board and return
to step 1. — —
In Replace the backlight and return to step
1.
Q2 Q4 Q6 QB Qi0
ooo ao 0000 ONOOA GND
Figure 6-2: DC Power Board