Acer X1161 Acer X1161, X1261, X110 and H5360 Projector Series Service Guide - Page 60

4-6 PC MODE Note: - When getting into function test, adjust the zoom ring and focus ring to guarantee the image maximum and clearest, then start to test. - Test signal: analog 800 x 600 @60Hz (for X1161); analog 1024 x 768 @60Hz (for X1261); analog 1280 x 720 @60Hz (for H5360). - We take X1261 for example here. 1. Frequency and tracking boundary Procedure Inspection item Criteria - Test equipment: video generator - Test signal: analog 1024 x 768 @60Hz - Test pattern: general-1 or master - Check and see if the image sharpness is well performed. - If not, re-adjust by the following steps: (1) S elect "Frequency" function to adjust the total pixel number of pixel clock in one line period. (2) S elect "Tracking" function and use right or left arrow key to adjust the value to minimize video flicker. - Adjust Resync or Frequency/Tracking/H Image Shift/V Image Shift to the inner screen. - Eliminate visual wavy noise by Rsync, Frequency or Tracking selection. - Check if there is noise on the screen. - Horizontal and vertical position of the video should be adjustable to the screen frame. - If there is noise on the screen, the product is considered as failure product. - If there is noise on the screen, use auto or manual "frequency" function or "tracking" function to adjust the screen. - The PC mode functionally sure be workable include support format with frequency and auto detected functional will be workable. General-1 Master 2. Bright Pixel Procedure - Test equipment: video generator X1161/X1261/X1161A/X1161N/X110/H5360 Confidential 4-