Download goldstar 20a30h docs - TV - Conventional CRT, LCD Projectors, TFT, Plasma, Big Screen, HDTV, Home theater - Service manuals, repair tips
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These instructions are applied to only NC-5AA chassis.
1.So this is a hot chassis, you must be careful, and be caution not to touch 1st and 2nd concurrently. 2.Adjustment must be done in the correct order. 3.Power supply of a SET which is adjusted is 100~240V A.C./50~60Hz. 4.The receiver must be operated for about 30 minutes proir to the adjustment.
2) Connect H.Scope and Pulse output of Sweamer Generator to H.Input and Marker input of Alignment Scope, respectively. 3) Apply AGC Voltage(D.C.) to TP11 of IC201.(7.5±0.05V) 4) Apply B+ of IC201 to TP12 of R591.(12.0±0.1V) 5) Set VR526(AGC Adjustment) to mechanical center.
1) Set the vertical range of Alignment Scope to 1V/DIV and CAL position, and, by applying D.C. 0~9V, do DC Calibration to place D.C 4.5V point of waveform to center of Screen. 2) Connect the Input terminal of Alignment Scope to TP3(Video Detection Output), and set Vertical Variable Switch to CAL position. 3) Apply AG|
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