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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.
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Great manual very clear copied. You are making an incredible job. I appreciate a lot the rapidity and your efficiency. Thanks a lot
ELECTRICAL ADJUSTMENTS
2-13: SUB TINT 1. Receive the color bar pattern. (RF Input) 2. Connect the oscilloscope to TP801. 3. Using the remote control, set the brightness, contrast, color and tint to normal position. 4. Activate the adjustment mode display of Fig. 1-1 and press the channel button (16) on the remote control to select "TINT". 5. Press the VOL. UP/DOWN button on the remote control until the section "A" becomes a straight line. (Refer to Fig. 2-2) 6. Receive the color bar pattern. (Audio Video Input) 7. Press the INPUT SELECT button on the remote control to set to the AV mode. Then perform the above adjustments 2~5. 2-15: OSD HORIZONTAL 1. Activate the adjustment mode display of Fig. 1-1. 2. Press the VOL. UP/DOWN button on the remote control until the difference of A and B becomes minimum. (Refer to Fig. 2-4)
TV
00 OSD
15
A 2-16: SUB SHARPNESS "A"
B
Fig. 2-4
Fig. 2-2 2-14: SUB COLOR 1. Receive the color bar pattern. (RF Input) 2. Connect the oscilloscope to TP803. 3. Using the remote control, set the brightness, contrast, color and tint to normal position. 4. Activate the adjustment mode display of Fig. 1-1 and press the channel button (15) on the remote control to select "COLOR". 5. Adjust the VOLTS RANGE VARIABLE knob of the oscilloscope until the range between white 100% and 0% is set to 4 scales on the screen of the oscilloscope. 6. Press the VOL. UP/DOWN button on the remote control until the red color level is adjusted to 110 ± 10% of the white level. (Refer to Fig. 2-3) 7. Receive the color bar pattern. (Audio Video Input) 8. Press the INPUT SELECT button on the remote control to set to the AV mode. Then perform the above adjustments 2~6. White 0%
1. Activate the adjustment mode display of Fig. 1-1 and press the channel button (17) on the remote control to select "SHARPNESS". 2. Check if the step No. of SHARPNESS is "40". 3. Press the INPUT SELECT button on the remote control to set to the AV mode. Then perform the above adjustment 1~2. 2-17: H. VCO 1. Activate the adjustment mode display of Fig. 1-1 and press the channel button (04) on the remote control to select "H VCO". 2. Check if the step No. of H VCO is "4".
100%
Red Level White 100%
Fig. 2-3
D3-3
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