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tres bon document
cela a permis de verifier la connection de l'ecran
merci
salutations
;
The manual was of good quality with high resolution schematic diagrams.
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The manual was very clear and contained all the information I was looking for. My dishwasher is working again because of this servicemanual!
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Quality scan, great manual. I solved my problem with this manual.
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The AKAI 1720 model reel to reel tape recorder described in this Manual is quite an old unit - circa late 1960's. As a consequence, the description of the mechanical details - and adjustments thereof - is quite critical. The manual does this quite well. The schematics are also well presented and have detailed PCB overlays. Probably the only negative is that some half-tone detail has been lost from the original manual as it has been scanned in simple B&W.
Recommended Value:
000
V-SIZE Change Vertical Size by pressing Left/Right buttons till horizontal black lines on both the upper and lower part of the test pattern become very close to the upper and lower horizontal sides of picture tube and nearly about to disappear. Check and readjust V-SIZE item if the adjustment becomes improper after some other geometric adjustments are done. Min. Value: -128 Max. Value: 127 Recommended Value: 068 H-SHIFT Change Horizontal Shift by pressing Left/Right buttons till the the test pattern is horizontally in equal distance both to right and left sides of the picture tube. Check and readjust H -SHIFT item if the adjustment becomes improper after some other geometric adjustments are done. Min. Value: 0000 Max. Value: 1295 Recommended Value: 1218 H-SIZE Change Horizontal Size by pressing Left/Right buttons till no under-scan condition will happen, i.e. no white bars on the left and right side of the test pattern will be visible nor picture will be so wide. Check and readjust H-SIZE item if the adjustment becomes improper after some other geometric adjustments are done. Min. Value: -128 Max. Value: 127 Recommended Value: 012 S-COR Change S-Correction by pressing Left/Right buttons till the size of squares on both the upper and lower part of test pattern become equal to the squares laying on the vertical center of the test pattern. Check and readjust S-COR item if the adjustment becomes improper after some other geometric adjustments are done. Min. Value: -128 Max. Value: 127 Recommended Value: 027 LINRT Change Linearity by pressing Left/Right buttons till all the size of squares of the test pattern become in equal size from the top of the screen to its bottom of the whole screen. Check and readjust LINRT item if the adjustment becomes improper after some other geometric adjustments are done. (especially after than S-COR adjustment) Min. Value: -128 Max. Value: 127 Recommended Value: -01 ANGLE Change Angle by pressing Left/Right buttons till the vertical lines of the crosshatch pattern become completely perpendicular to horizontal lines without any angle of vertical deviation. Check and readjust ANGLE item if the adjustment becomes improper after some other geometric adjustments are done. Min. Value: -128 Max. Value: 127 Recommended Value: 001 BOW Change Bow by pressing Left/Right buttons till the vertical lines especially ones close to the left and right sides will of equal and symmetrical bending, i.e. they together will neither be towards left side nor right side. Check and readjust BOW item if the adjustment becomes improper after some other geometric adjustments are done. Min. Value: -128 31
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