NEC NP-NC900C-A, Руководство по обслуживанию

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TROUBLESHOOTING
“Confidential, Do Not Duplicate without written authorization from NEC.”
Turn on the AC switch.
No No
“Standby” is indicated in the LCD. Check the voltage on the following Replace the
cable (6-pin) supplied from the top Power Module.
face of the Power Module to the
Yes MOTHER PWB.
• 12 Vdc output from the top face
connector pins #1, 2, 3 on the
Power Module.
Yes
Check the following cable connections:
• The above mentioned 12V supply
cable.
• The cable between SLAVE UCBD
and KEY PAD BD.
• The cable between KEY PAD BD
and LCD.
Also, check the state of the CPU PWB
insertion.
Yes
An Error indication is given to the Refer to the error code table.
LCD.
No
Keep the Power button of the Check the KEY PAD BD, CPU, and
control panel pressed more than Slave BD.
3 seconds to start up the projector.
No
Yes
An Error indication is given to Refer to the error code table.
the LCD.
No
Normal state
Troubleshooting when start-up failure occurred