Acer Projector K138ST User Manual

21
EnglishAppendices
Troubleshooting
If you experience a problem with your Acer projector, refer to the following 
troubleshooting guide. If the problem persists, please contact your local reseller 
or service center.
Image Problems and Solutions
# Problem Solution
1 No image appears 
onscreen•Connected as described in the Getting Started 
section.
•Ensure none of the connector pins are bent or 
broken.
•Make sure the projector is switched on.
2 Partial, scrolling 
or incorrectly 
displayed image 
(For...

   22
English
3 Partial, scrolling 
or incorrectly 
displayed image 
(for notebooks)•For an incorrectly displayed image:•Follow the steps for item 2 (above) to adjust 
the resolution of your computer.
•Press the toggle output settings. Example: 
[Fn]+[F4], Compaq [Fn]+[F4], Dell [Fn]+[F8], 
Gateway [Fn]+[F4], IBM [Fn]+[F7], HP [Fn]+[F4], 
NEC [Fn]+[F3], Toshiba [Fn]+[F5]
•If you experience difficulty changing resolutions or 
your monitor freezes, restart all equipment 
including the projector.
4 The...

23
English
Problems with the Projector
9 Image is too small 
or too large•Adjust the zoom ring on the top of the projector.
•Move the projector closer to or further from the 
screen.
•Press MENU on the remote control or on the 
control panel. Go to Image --> Aspect Ratio and 
try different settings.
10 Image has slanted 
sides
•If possible, reposition the projector so that it is 
centered on the screen.
•Press the Keystone on the OSD until the sides are 
vertical.
11 Image is reversed
•Select Image -->...

   24
English
OSD Messages
# Condition Message Reminder
1 Message Fan Fail - the system fan is not working.
Projector Overheated - the projector has exceeded its 
recommended operating temperature and must be allowed to 
cool down before it may be used. 

25
EnglishLED & Alarm Definition Listing
LED Messages
Note: When power on, click any key, Menu/Up/Down/Left/Right 
key LED will all be trigger.
MessagePOWER LED LAMP TEMP
Red Blue Red Red
Standy by ON --- --- ---
Power on --- ON --- ---
Over Heat --- ON --- ON
Fan Fail --- ON --- Flash (2s interval)
LED Fail --- ON ON --- 

   26
English
Specifications
The specifications listed below are subject to change without notice. For final 
specs, please refer to Acers published marketing specifications.
* Design and specifications are subject to change without notice.
Projection system
DLP®
Resolution WXGA (1280 x 800)
Computer compatibility IBM PC and compatibles, Apple Macintosh, iMac and 
VESA standards: SXGA, XGA, SVGA, VGA, WXGA
Aspect ratio Full, 4:3, 16:9, L.Box
Displayable colors 16.7 million colors
Projection lens F = 1.9,...

27
EnglishCompatibility modes
A. VGA Analog 
1 VGA Analog - PC Signal
ModesResolutionV.Frequency [Hz]H.Frequency [KHz]
VGA640x4806031.5
640x4807537.5
SVGA800x6005635.1
800x6006037.9
800x6007546.9
800x60012077.4
XGA1024x7686048.4
1024x7687056.5
1024x7687560.0
1024x76812099.0
SXGA1152x8647567.5
1280x10246064.0
1280x10247580.0
QuadVGA1280x9606060.0
1280x9607575.2
SXGA+1400x10506065.3
PowerBook G4 640x480 60 31.4
PowerBook G4
640x48066.6 (67)34.9
PowerBook G4
800x6006037.9
PowerBook G4 1024x768 60 48.4...

   28
English
2 VGA Analog - Extended Wide timing
3 VGA Analog - Component Signal
B. HDMI Digital 
1 HDMI - PC Signal
ModesResolutionV.Frequency [Hz]H.Frequency [KHz]
WXGA1280x7686047.8
1280x7687560.3
1280x7206044.8
1280x8006049.6
1280x800120101.5
1440x9006059.9
WSXGA+1680x10506065.31920x1080 
(Reduced 
Blanking Timing)
6066.6
1366x7686047.7
ModesResolutionV.Frequency [Hz]H.Frequency [KHz]
480i720x48059.94(29.97)15.7
576i720x57650(25)15.6
480p720x48059.9431.5
576p720x5765031.3
720p1280x7206045.0...

29
English
2 HDMI - Extended Wide timing
1024x76812099.0
SXGA1152x8647063.8
1152x8647567.5
1280x10246064.0
1280x10247580.0
QuadVGA1280x9606060.0
SXGA+1400x10506065.3
PowerBook G4 640x480 60 31.4
PowerBook G4
640x48066.6 (67)34.9
PowerBook G4
800x6006037.9
PowerBook G4
1024x7686048.4
PowerBook G4
1152x8707568.7
i Mac DV (G3)
1024x7687560.0
ModesResolutionV.Frequency [Hz]H.Frequency [KHz]
WXGA1280x7686047.8
1280x7687560.3
1280x7206044.8
1280x8006049.6
1280x800120101.5
1440x9006059.9
WSXGA+1680x10506065.3...

   30
English
3 HDMI - Video Signal
ModesResolutionV.Frequency [Hz]H.Frequency [KHz]
480i 720x480(1440x480) 59.94 (29.97) 15.7
576i 720x576(1440x576) 50 (25) 15.6
480p 720x480 59.94 31.5
576p 720x576 50 31.3
720p 1280x720 60 45.0
720p 1280x720 50 37.5
1080i 1920x1080 60 (30) 33.8
1080i 1920x1080 50 (25) 28.1
1080p1920x108023.97/2427.0
1080p 1920x1080 60 67.5
1080p 1920x1080 50 56.3
Graphic source 
monitor range 
limitsHorizontal scan rate: 30k~102kHz
Vertical scan rate: 50~120Hz
Max. pixel rate 150MHz