Troubleshooting; Signal Connector Information - IBM 6331 User Manual

TROUBLESHOOTING

If your monitor fails to operate functionally, it might
be possible to correct the problem by making simple
checks as follows:
Problem Check and Adjust
Blank screen · Monitor power switch,
(* NOTE) power cord, signal cable,
or connector
· computer power switch
· Brightness and Contrast
controls
Display position · Vertical centering and
off-center horizontal phase controls
Display too small · Vertical and horizontal
or too large size controls
Display too bright · Brightness and Contrast
or too dim controls
Refer to the operation instructions for your computer
or video adapter to ensure that you have the correct
signal output source for the monitor. Ensure that the
switches on the video adapter are set correctly for
operation with this monitor.
If the above steps fail to correct the problem contact
your dealer for servicing by qualified service
personnel.
You must include the power cord if you return the
monitor for service.
* NOTE: You can easily distinguish the problem is
on the monitor or on the computer by
using the monitor's built-in selftest
function.
With the monitor power ON, disconnect
the signal cable from monitor. If there is
no image on the monitor screen,
disconnect the signal cable. If you see a
"NO SIGNAL" image on the screen
(shown below), the monitor is function
properly, and the problem is at computer
side, or signal cable.
N O S IGN AL
113393-0A-E.pm6
SERVICING
Refer all servicing to qualified service personnel.
Serious shock hazards exist within the covers of
this monitor.
Do not open the covers under any circumstances-
there are no serviceable parts inside.
SIGNAL CONNECTOR
INFORMATION
P in F unc tio n
1 Red signal
2 Green signal
3 Blue signal
4 Ground
5 * (N OTE)
6 Red return
Green
7
return
8 Blue return
*NOTE :
This pin is used for self-test detection; at
computer side, this pin has to be connected
to ground.
7
E-7
5
1
15
P in F unc tio n
9 5V
10 Digital ground
11 Ground
12 SDA (DDC 1/DDC 2B)
Horizontal
13
Synchronization
Vertical synchronization
14
and VC LK (DDC 1)
15 SC L (DDC 2B)
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