GME HG139 User Manual Download | Manualshive

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GME

User's Manual

Rev 1.1

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Summary of Contents for HG139

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

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 unexpect...

Page 3: ...ives 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 f...

Page 4: ...stronger With the price of DTV test equipment stayed relatively expensive often in the range of thousands of dollars the effort of getting into DTV for many individuals is highly discouraged The HG139...

Page 5: ...he negative sync pulse amplitude is nominally 0 3 volts below the blanking level and the positive sync pulse amplitude is nominally 0 3 volts above the blanking level Full scale video sync is generate...

Page 6: ...C only luminance signal output for NTSC 6 Video Pattern button Use this button to cycle through one of the following video patterns COLOR BARS CROSS HATCH STAIRCASE MULTIBURST OVERSCAN BOUNCE PLUGE NE...

Page 7: ...on provides no chrominance so Color Bars and Raster will display only luminance with no color The other patterns will display normally 2 Using the video format selector select the appropriate video fo...

Page 8: ...ons COLOR BARS CROSS HATCH STAIRCASE NEEDLE MULTIBURST PLUGE CHECKER RASTER White RASTER Yellow RASTER Cyan RASTER Green RASTER Magenta RASTER Red RASTER Blue RASTER Black www gmetechnology com 4 OVER...

Page 9: ...t forms a grid of 16 x 9 squares of the same size for 1080i and 720p 12 x 9 squares for 480p and NTSC This pattern used to check and adjust dynamic convergence of the display Observe the horizontal an...

Page 10: ...r grayscale performance MULTIBURST The MULTIBURST pattern displays five frequency bands of progressively higher frequency from left to right The following frequencies are displayed 2 32MHz 4 64MHz 6 1...

Page 11: ...rols to obtain the desire amount of overscan or underscan The Overscan Bounce pattern is also useful for checking pincushion bow distortion and display geometry such as picture centering size and trap...

Page 12: ...ation The left vertical stripe is just visible as a dark gray The right vertical stripe alternates between black and slightly blacker so should not be visible against the background If blinking can be...

Page 13: ...t control for maximum light level while minimizing raster distortion or blooming Blooming results in light from very bright pixels spilling over to adjacent pixels This causes bright picture areas to...

Page 14: ...upply that does not have good regulation softening or ringing in the pattern transitions can result RASTER The RASTER patterns consist of 8 full field color patterns at 75 amplitude The colors display...

Page 15: ...ATCH STAIRCASE MULTIBURST OVERSCAN BOUNCE PLUGE NEEDLE CHECKER RASTER Y output Output impedance 75 1 Vp p into 75 Pb output Output impedance 75 0 7 Vp p into 75 Pr output Output impedance 75 0 7 Vp p...

Page 16: ...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...

Page 17: ...www gmetechnology com 13 Notes...

Page 18: ...GME Technology 380 S East End Ave H Pomona CA 91766 TEL 909 865 1998 FAX 909 865 2793 www gmetechnology com...

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