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Excellent service manual, the only known point of note is the alignment of improvability scanned pages within the pdf page. The resolution is good.
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I was very glad recieving the service manal from You. Additionaly very fast. Extremaly nice servicing. Thanks very mach! Now my GX-220 working better, than it was made. Alexander from Moscow, Russia/
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Sweet! I won the item on eBay and couldn't adjust the geometry or even keep a steady picure. This guide has the full schematics (not available anywhere else as far as I could tell), and was a bargain for the wealth of knowledge it contains. I hooked it up to my testing equipment, tweaked a few potentiometers and got it playing videogames in no time. Thanks!
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It was just what I need to fix my old BMW's CD player. Very convenient also. Thank you.
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Great Manual! It contains all the wiring schematics and mechanical exploded views that are essential for service and repair. I was surprised I even found this for such an old machine. Only wish I knew of this site many years ago.
�. Re-Adjustment
Ａ���� changing the Signal Board or Panel Module, re-adjustment is needed according to the item 7.1 to 7.5 . For Video Board, item 7.3 to 7.5 are needed. 7.1 Personal Computer (PC) input black level/fundamental amplitude adjustment How to prepare 1.Connect RGB input terminal VGA (75), 0.7Vpeak, no-set up, horizontal 16 stairs bar signal. Initial adjustment data must be 8 bit resolution. 2.Appear and adjust screen OSD Menu of Picture: Contrast:: Max, Brightness: 0, and options are Color select: NORM, GAMMA: 1.0, Video level: 0.7V Set adjustment No. 246, 247 and 248 scale to 16 . Adjustment No240 is GAMMA function.( 0=GAMMA1.0, 1=GAMMA2.2) How to adjust 1.Set factory preset mode and adjust as follows by Remote Control Transmitter. 2.Set adjustment No.41 to just darken black level.(GAMMA1.0) 3.Set adjustment No.42 to just darken black level.(GAMMA1.0) 4.Set adjustment No.43 to just darken black level.(GAMMA1.0) 5.Connect Full black signal and check that no residual color area is observed. If residual color area is observed, re-adjust No.41, 42 and 43 to disappear it. 6.At adjustment No.44, adjust that 2nd step of White peak is just distinguished.(GAMMA=2.2) 7.At adjustment No.45, adjust that 2nd step of White peak is just distinguished.(GAMMA2.2) 8.At adjustment No.46, adjust that 2nd step of White peak is just distinguished.(GAMMA2.2) 9.Change to No47. 10. Check that setup level is darken and also 2nd step of white level is distinguished. 11.Check that 2nd step of white peak is distinguishable. Tolerance of each color adjustment numbers are less than 7. If more than 7. re-adjust from above 2. step. 7.2 PC color temperature adjustment How to prepare 1. Set factory preset mode. 2. Connect window pattern signal (25% of display area) VGA (75), 0.7Vp-p without set up signal . 3. Window pattern (R, G and B) should be 8 bit resolution each. 4. Appear and adjust Screen OSD menu of Picture. Contrast: Max, Brightness: 0, and options are Color select: NORM, GAMMA: 2.2, Video level: 0.7V Set adjustment No. 246, 247 and 248 scale to 16 . Video input level should be 0.7Vp-p. How to adjust 1.Set factory preset mode and adjust as follows by Remote Control Transmitter. 2.Measurement probe of CRT Color Analyzer CA-100 is set on the center of screen. (Center of white peak signal.) 3.Adjust color temperature as follows by reducing one or two numbers of No.32, 33, 34.
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