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Understanding the Front Panel 

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  1 

 

1.

 

Power ON/OFF switch 

This Power ON/OFF switch is on the left 
side of the unit. Slide the switch upward 
to turn the unit on and downward to turn 
the unit off.  

 

2.

 

Power ON/OFF LED       

Power is ON when the LED lights up and 
power is OFF when the LED is off. 
 

3.

 

Battery Low LED 

When the PG-38 is operating on a 
standard 9V battery and the voltage on 
the battery has drop down to around 5V, 
this green LED will turn on indicating 
the voltage on the battery is low.  

1

2

7

9

4

3

5

6

8

 

4.

 

9V AC adaptor input 

The user may connect a 9V 100mA 
5.5mm x 2.1mm 

center positive

 AC 

adaptor (not included) to power the PG-
38. 

 
5.

 

Scanning Format switch 

Use this selector to choose between PROGRESSIVE or INTERLACE scanning system.

 

 
6.

 

Video Pattern button 

Use this button to cycle through one of the following video patterns: 

      COLOR BARS 

 

CROSS HATCH 

 

DOT 

STAIRCASE 

 CIRCLE 

  CENTER 

CROSS 

   

WINDOW  

 

RASTER 

 

 

  

NOTE

: Holding down this button will display previous patterns in reverse order until COLOR 

BARS pattern is reached.  
 

7.

 

RF Video Output (BNC connector) 

RF video is output on Channel 3 with 1kHz audio test tone. Connect this to the TV’s antenna 
connector and switch to Channel 3 for video signal. 

 
8.

 

S-Video output 

Connect this to TV’s s-video input for video signal  
 

9.

 

Composite Video Output (RCA connector) 

Connect this to TV’s composite video input for video signal 
 

Summary of Contents for PG-28

Page 1: ...GME User s Manual Rev 1 3 ...

Page 2: ... capacitors after removing power 2 If possible familiarize yourself with the equipment being tested and the location of its high voltage points However remember that high voltage may appear at unexpected points in defective equipment 3 Use an insulated floor material or a large insulated floor mat to stand on and an insulated work surface on which to place equipment make certain such surfaces are ...

Page 3: ...gives you specific rights and you may have other rights which vary from state to state Service Repair The following are procedure for returning a GME product for servicing and repair Turn around time for repair is normally within five 5 working days excluding shipping time RMA Procedure Before sending your GME product in for service be sure to contact GME Technology first to obtain a RMA number If...

Page 4: ...able of Contents Page Introduction 1 Item Checklist 1 Features 1 Understanding the Front Panel 2 Basic Operation 3 Video Patterns and Applications 4 8 Specifications 9 GME Product Information 10 Notes 11 ...

Page 5: ...e Center Cross Window and Raster for accurate and comprehensive TV troubleshooting and testing It also supports both progressive and interlace scanning system RF video is output on Channel 3 with 1kHz audio tone for audio troubleshooting Item Checklist One PG 38 NTSC pattern generator One User s Manual Features 8 commonly used video test patterns including COLOR BARS CROSS HATCH DOT STAIRCASE CIRC...

Page 6: ...2 1mm center positive AC adaptor not included to power the PG 38 5 Scanning Format switch Use this selector to choose between PROGRESSIVE or INTERLACE scanning system 6 Video Pattern button Use this button to cycle through one of the following video patterns COLOR BARS CROSS HATCH DOT STAIRCASE CIRCLE CENTER CROSS WINDOW RASTER NOTE Holding down this button will display previous patterns in revers...

Page 7: ...ment under test 3 Slide the power switch to turn on the PG 38 4 Push the video pattern button to step to the desire video pattern for display Available video patterns include COLOR BARS CROSS HATCH DOT STAIRCASE CIRCLE CENTER CROSS WINDOW and RASTER choose from White Yellow Cyan Green Magenta Red Blue and Black NOTE Holding down the video pattern button will display previous patterns in reverse or...

Page 8: ...Video Patterns and Applications COLOR BARS CROSS HATCH DOT STAIRCASE CIRCLE CENTER CROSS WINDOW RASTER White RASTER Yellow RASTER Cyan RASTER Green RASTER Magenta www gmetechnology com 3 ...

Page 9: ...ttern displays a series of horizontal and vertical straight white lines that forms a grid of 16 x 12 squares of the same size This pattern is used to check and adjust dynamic convergence of the display Observe the horizontal and vertical lines to detect color fringing resulting from misconvergence An example that the display is misconverged is when the white lines become separated Red Green and Bl...

Page 10: ...h vertical bar has distinctive brightness level This pattern is also useful for checking and adjusting the grayscale performance of a video device This pattern is seen as a primary color red green or blue tint on display device with poor grayscale performance CIRCLE www gmetechnology com 5 This pattern shows a 4 3 aspect ratio circle that is perfectly round and one horizontal line and one vertical...

Page 11: ...good general check of vertical and horizontal sync WINDOW The WINDOW pattern displays a centered white window on black background Use this pattern to measure the chromaticity of the display device This pattern is preferred over the full field white raster because the WINDOW pattern more closely duplicates the APL average picture level of typical program material and does not unnaturally stress dis...

Page 12: ...is often results in areas of color on the white raster pattern Use the three primary color raster patterns Red Green and Blue to check for missing and defective pixels on a LCD monitor Missing and defective pixels are common problems on this type of display devices The Red Green and Blue raster patterns are valuable for adjusting the three separate guns that generate these three primary colors ins...

Page 13: ...nd Black Scanning System Interlace and Progressive RF Output Channel 3 61 25MHz crystal controlled Composite Video 1 0Vp p into 75Ω S Video Chrominance output 0 6Vp p into 75Ω Luminance plus Sync output 0 8Vp p into 75Ω Sound 1 kHz audio tone Power one standard 9V battery OR 9V AC adaptor 100mA 5 5mmx2 1mm center positive Dimension 5 7 H x 3 8 W x 1 5 D Weight 0 8 lb ...

Page 14: ...39 HDTV Pattern Generator SG 10 10 MHz DDS Signal Generator 236 In Circuit ESR DCR Capacitor Tester PG 16A NTSC Monitor Tester Handheld Model PG 68 NTSC Monitor Tester Benchtop Model PG 38 NTSC Pattern Generator MT 160 Computer Monitor Tester LC200 Digital LC Meter C350 Capacitance Meter Other products such as digital analog panel meters step motor drivers are also available Please visit our websi...

Page 15: ...www gmetechnology com 10 Notes ...

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