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Excellent!! Got what I need and very fast!! Thank You
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Manual acquired with good resolution, complete in all its pages, very good policy of the folder where are saved all products purchased.
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Service manual very complete and clear. It was very helpfull for my work.
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This is the 2nd time I download manuals from this website and I can say it's what I was expecting. It contains schematic, layout (decent quality), short description, parts and dissasembly instructions. I recomend it for anyone who wants to repair/modify this device.
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Very useful Service Manual! With it I was able to identify the damaged pots in my old amplifier, purchase the adequate replacements and make myself the repair.
I have again my old amplifier, still a very good one that I will keep for as many years as I can!
Thanks to Owner Manuals!
2. SCREEN
1) Receive the Retma pattern and heat run over 15 minutes. 2) Adjust the �R, G BIAS, R, G DRIVE� to 0, �B BIAS� to 127, �B DRIVE� to 32. Adjust the screen volume that the Retma pattern reach to the cut-off point.
3. WHITE BALANCE
1) Receive the Full white pattern and heat run over 15 minutes. 2) Adjust the picture control at the point �Y� value of white balance instrument in 20cd/. 3) Enter the service mode. 4) Adjust �R BIAS, G BIAS� to x=288, y=301. 5) In order to exit the service mode power off the TV set and power on. 6) Set the TV set to �Normal I� mode(20/21 inch) or set to �Normal II� mode(14 inch) 7) Enter the service mode. 8) Adjust �R DRIVE, G DRIVE� to x=288, y=301. 9) Repeat above process until the white balance value to x=288, y=301, Y=20, x=288, y=301, Y=200(approximate) in 2) � 8).
4. FOCUS
1) Apply a RETMA PATTERN signal. 2) Adjust the Focus Volume on FBT to obtain optimal resolution.
5. AGC
1) Set the pattern Generator with RF LEVEL = 60dBuV 100% FULL COLOR BAR 2) Connect the pattern generator RF output to tuner RF input. 3) Connect the probe of oscilloscope in AGC pin of tuner. 4) Adjust the AGC point to MAX � 1V. (Simple Method) 1) Receive the pattern. 2) Locate the cursor in �AGC� and adjust using the �VOL +� or �VOL �� keys. 3) Adjust the point there is no noise in about 60dBuV and no beat in about 90dBuV.
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