HP Ep7122 Home Cinema Digital Projector Users Guide

Installing permanently
User’s Guide 51Video functions
Command Parameters Description
CSPC0 to 2, ? Sets or queries the active color space: 
0=RGB, 1=YPbPr, 2=YCbCr.
PMOD0,1,3,4,5,? Sets or queries the picture mode: 
0=computer, 1=movie, 3=sports, 4=TV, 
5=custom.
VSHFvalue, +, -, ? Sets or queries the vertical shift of the 
projected image: usable range is 
determined by the active input source.
HSHFvalue, +, -, ? Sets or queries the horizontal shift of the 
projected image: usable range is 
determined...

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TRKvalue, +, -, ? Sets or queries the synchronization of 
the projector to the active computer 
input source.
VPOSvalue, +, -, ? Sets or queries the vertical positioning 
of the projected image: usable range is 
the maximum and minimum allowed by 
the active computer input source.
HPOSvalue, +, -, ? Sets or queries the horizontal 
positioning of the projected image: 
usable range is the maximum and 
minimum allowed by the active computer 
input source.
HIDE0, 1, ?...

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User’s Guide 53Setup functions
Command Parameters Description
LANG0 to 9, 11, ? Sets or queries the language used by 
the projector: 0=English, 1=French, 
2=Italian, 3=German, 4=Portuguese, 
5=Spanish, 6=Traditional Chinese, 
7=Simplified Chinese, 8=Korean, 
9=Japanese, 11=Dutch.
LHRS? Queries the time (in tenths of hours) that 
the lamp has been in use.
THRS? Queries the total time (in tenths of 
hours) that the projector has been in 
use.
POS0 to 3, ? Sets or queries the...

54 User’s Guide
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Power and status functions
Command Parameters Description
SHDNNone Puts the projector into cool-down state, 
and later into standby state. The 
projector sends a notification when it 
enters cool-down state (STAT=3), and 
another when it enters standby state 
(STAT=0). This keyword requires the 
projector to be in its on state (STAT=1).
✎Do not send any requests other 
than STAT in the time between 
the cool-down and standby state 
notifications. Otherwise,...

Installing permanently
User’s Guide 55Simulated key presses
Command Parameters Description
MENUNone Simulates pressing the MENU key on 
keypad
ENTERNone Simulates pressing the OK key on 
keypad
LEFTNone Simulates pressing the Left Arrow key 
on keypad
RIGHTNone Simulates pressing the Right Arrow key 
on keypad
UPNone Simulates pressing the Up Arrow key on 
keypad
DOWNNone Simulates pressing the Down Arrow key 
on keypad 

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User’s Guide 57
6
Fixing problems
Troubleshooting suggestions
If you have a problem with your projector, check the following statement that 
most closely matches the nature of the problem, then look in that section of this 
chapter:
■“Warning light problems” on page 57
■“Start-up problems” on page 58
■“Picture problems” on page 58
■“Sound problems” on page 61
■“Interruption problems” on page 62
■“Remote control problems” on page 62
✎
If these suggestions do not solve your problem, go to...

58 User’s Guide
Fixing problems
If the red lamp light is on or blinking:
❏Allow the projector to cool down after it turns off. If the warning light 
turns on or blinks after you restart the projector, install a new lamp. If 
this occurs after you install a new lamp module, remove and reinstall the 
lamp module. If a new lamp does not fix the problem, contact HP for 
assistance.
If the red lamp light is flickering quickly:
❏Check that the cover around the lamp at the front of the projector is 
correctly...

Fixing problems
User’s Guide 59
If the image is out of focus:
❏Be sure the lens cover is open.
❏While displaying the on-screen menu, adjust the focus ring. (The image 
size should not change; if it does, you are adjusting the zoom, not the 
focus.)
❏Ensure the projection screen is 1 to 10 m (3 to 33 ft) from the projector.
❏Check the projection lens to see if it needs cleaning.
❏For a computer connection, set the display resolution on the computer to 
1024×768 pixels. If the computer has multiple...

60 User’s Guide
Fixing problems
If the image is stretched:
❏On the projector or remote control, press the picture mode button one or 
more times to see if one of the picture modes makes the image the correct 
size.
❏Press menu, go to Picture > Customize picture mode > Stretch. Try 
the different settings.
❏If the source device sends wide-screen output, press menu, go to Picture 
> Shape settings, and try setting Widescreen input to Ye s .  Otherwise, 
set it to No.
If the projected colors seem slightly...