HP vc4825T Troubleshooting Guide: HP vc4820T and vc4825T Thin Clients - Page 51

No Video, Part 3, Caution

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No Video, Part 3 No Video Part 2 continued No Video Part 3 Turn off power, disconnect power cord, and open the computer. Reseat flash, then clear CMOS by removing and replacing the battery. Caution: Power is continuous to the system board and power supply even when the power switch is turned off. To prevent damage to the unit, disconnect the power cord from the power source or the unit before beginning disassembly procedures. Replace cover and power cord, then restart computer. Video OK, computer starts? Same No symp- No toms? CMOS checksum error defaults loaded Yes F1-CMOS checksum errordefaults loaded Yes Done Yes No Turn off the computer and disconnect power. Replace components in system one at a time starting with Flash. Test system after each replacement for video or beeps. Go to next page t5000 Troubleshooting Flow Chart No Video, Part 4 Troubleshooting 43

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No Video, Part 3
No Video Part 2 continued
No Video Part 3
Go to next page
t5000 Troubleshooting
Flow Chart
No Video, Part 4
Caution:
Power is continuous to the system
board and power supply even when the power
switch is turned off. To prevent damage to the
unit, disconnect the power cord from the power
source or the unit before beginning
disassembly procedures.
Turn off power,
disconnect power
cord, and open
the computer.
Video
OK,
computer
starts?
Done
Replace cover and
power cord, then
restart computer.
Turn off the computer and disconnect power. Replace
components in system one at a time starting with Flash. Test
system after each replacement for video or beeps.
Yes
No
Yes
Reseat flash, then clear
CMOS by removing and
replacing the battery.
Same
symp-
toms?
No
CMOS
checksum
error
defaults
loaded
F1-CMOS
checksum error-
defaults loaded
No
Yes
Troubleshooting
43