HP M2350A Service Manual page 227

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Blank display, no picture,
no error message.
Troubleshooting the System
Introduction
General System Troubleshooting 'lkble
Possible Cause
Corrective Action
Contrast and brightness controls set too Adjust.
low.
Power lead disconnected or switched off Connect lead/switch on.
Display fuses open.
Verify fuse values and replace.
DC/DC cable or video cable disconnected Check/replace leads as necessary.
or faulty.
Blue HIL connector inside bezel Check/reconnect.
improperly connected.
Card placement in backplane incorrect.
Place cards in correct slots, as shown in
card placement section.
Poor display quality: Video termination switch on rear of Switch ON (in) if only a master display is
Inverse video, faded image,
display incorrectly set. used, switch OFF (out) if a second
ghosting.
(slave) display is connected.
Color display is connected to
Insert color display controller cards
monochrome controller (DSPC).
(CDSPC-CTRL and CDSPC-VIDEO).
Power lead or video cable disconnected
Check/replace leads as necessary.
or faulty.
Blue HIL connector inside bezel
Check/reconnect HIL connector.
improperly connected.
Keyboard and front panel
switches not operating.
"No Printer Available" or
"Printer Malfunction"
status message.
Faulty CDSPC-VIDEO card (color only).
Replace card.
Faulty DSPC or CDSPCXTRL card.
Replace card.
HIL cable between Display and
Reconnect cable, matching the dot
Computer Module is reversed.
lndlcators.
Faulty HIL cable. Replace HIL cable.
Faulty HIF board in display bezel.
Replace HIF board.
Faulty HIL bezel
connector
(blue).
Replace HIF board.
Faulty Utility CPU card. Replace Utility CPU.
Printer not connected to central station.
Check printer interface cable.
Printer out of paper.
Check paper.
Printer off.
Check printer power cord and switch.
Printer configured incorrectly.
Check printer baud rate (19.2K baud)
and Data Communications (DTR)
settings.
Printer malfunction.
Cmsult printer service manual.
RS2.32 Interface card defective.
Replace RS232 Interface card.
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