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

- 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) Select "Frequency" function to adjust the total

 

pixel number of pixel clock in one line period.

 

(2) Select "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.

Inspection item

- 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.

Criteria

- 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.

2. Bright Pixel

General-1

Master

Procedure

- Test equipment: video generator

 

 

 

 

 

 

 

 

X1161/X1261/X1161A/X1161N/X110/H5360

Confidential

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Acer X110 service manual Frequency and tracking boundary, Bright Pixel