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Excellent quality service manual. Quick processing, fair prices. Love to do business again. Thank you!!!
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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.
LC-121M2U LC-150M2U 5-6-2. AV input Adjustment
1 Adjustment Brightness adjustment (N358) Adjustment conditions 1. Input the standard color bar signal (the same pattern as that of JPN-8CH) of N358 into AV1. 2. Connect the oscilloscope to TP821 (IC803, pin7, G output).
LC-121M2U LC-150M2U
Adjustment method 1. Adjust N358 BRIGHTNESS, and adjust the black level of G output so as to get DC 1.5±0.05V.
2
R-cut off adjustment
1. Input the standard color bar signal (the same pattern as that of JPN-8CH) of N358 into AV1. 2. Connect the oscilloscope to TP821 (IC803, pin7, G output). 3. Connect the oscilloscope to TP819 (IC803, pin1, R output). 1. Input the standard color bar signal (the same pattern as that of JPN-8CH) of N358 into AV1. 2. Connect the oscilloscope to TP821 (IC803, pin7, G output). 3. Connect the oscilloscope to TP820 (IC803, pin8, B output). 1. Input the standard color bar signal (the same pattern as that of JPN8CH) of N358 into AV1. 2. Connect the oscilloscope to TP821 (IC803, pin7, G output).
1. Adjust R CUTOFF so as to equalize the black levels of green and red.
3
B-cut off adjustment
1. Adjust B CUTOFF so as to equalize the black levels of green and blue.
4
Unicolor adjustment (N358)
1. Adjust N358UNICOLOR, and adjust so as to get 100% whiteblack level video component equal to 2.3±0.05Vp-p.
5
R DRIVE adjustment
1. Input the standard color bar signal (the same pattern as that of JPN8CH) of N358 into AV1. 2. Connect CH1 of oscilloscope to TP821 (G output). 3. Connect CH2 of oscilloscope to TP819 (R output).
1. Adjust so as to get 100% white level identical with that of green.
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