Emerson Orion TC1972D, Service Manual

Page 1: ...CE SAFETY INFORMATION 2 ELECTRICAL ADJUSTMENTS 1 BEFORE MAKING ELECTRICAL ADJUSTMENTS 1 1 PREPARE THE FOLLOWING MEASUREMENT TOOLS FOR ELECTRICAL ADJUSTMENTS 3 2 BASiC AOJUSTMENTS 2 1 VIF AND D AFT 3 2 2 BRIGHT AGC TINT AND COLOR 3 4 2 3 CUT OFF 5 2 4 FOCUS 5 2 5 VERTICAL SIZE 5 2 6 VERTICAL POSITION N j 2 7 HORIZONTAL POSITION 5 3 PURITY AND CONVERGENCE ADJUSTMENT 3 1 STATIC CONVERGENCE ROUGH ADJU...

Page 2: ... 2 1 1 Connect output terminal of the sweepmarker generator to TP201 Connect a 2 7K ohm resistor between them 2 Connect input terminal of the sweepmarker generator to TP204 3 Connect a 1OK ohm variable resistor to IF AGC terminal TP210 12V line and ground then adjust to make the waveform of the oscilloscope readable a 1OK ohm 12V 77 AGC TP210 4 Adjust L205 until the waveform marker 45 75MHz become...

Page 3: ... diagonal streaks are at minimum 3 If there is still a problem after pressing the VOL UP DOWN key on the remote control install an attenuator to the antenna terminals the repeat step 1 4 4 Confirm noise does not appear 5 Change the channel confirm other channels are normal 2 2 C TINT 1 Receive the color bar patter 2 Using the remote Control set the brightness and color to center position 3 Using t...

Page 4: ...bine red and blue of the 3 color crosshatch pattern on the center of the screen by adjusting the pair of 4 pole magnets 3 Combine red blue magenta and green by adjusting the pair of 6 pole magnets 3 4 DYNAMIC CONVERGENCE NOTE Adjust after performing adjustments in section 3 3 1 Adjust the differences around the screen by moving the deflection yoke upward downward and right left Refer to Fig 3 2 a ...

Page 5: ... the value of C460 Picture will move left R444 and C460 are fixed components Use a variable resistor or capacitor to determine the optimal value and insert that value component 3 PURITY A N D CONVERGENCE ADJUSTMENT NOTE 1 Turn the unit on and let it warm up for at least 30 minutes before performing the followiiig adjustments 2 Place the CRT surface facing east or west to reduce the terrestrial mag...

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