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tres bon document
cela a permis de verifier la connection de l'ecran
merci
salutations
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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.
Adjustment items Focus adjustment The method mentioned left is applied to the focus adjustment on the G lens adjustment of 43PH, 42W.The details of G lens adjustment for 50PH,61PH, 50W, and 57W are described in the previous page.
Adjusting methods 4) Adjust the G lens focus. (Applicable only to 43PH, 42W) Watch the horizon of the left and right both ends of the screen (the range of circle with 100mm diameter shown in the following sketch), make optimum adjustments on the G lens focus, and check that the focus balance on the right and left is satisfactory. (Balance check of left-and-right G lens focus) (1) Adjust the G lens focus best by crosshatch of the left end (or the right end). (2) Check the focus of the right end (orthe left end). If the balance of the left and right lens focus (flare) is different, part it and adjust to the medium quality. Check the environment and confirm that the focus quality (including flare) is within a tolerable range.
Point to be noted during G lens focus adjustment (To be adjusted within circles of 100mm diameter contacting the left and right of the bezel)
Concerning items 1), 2), 3), and 5) of G adjustment, these are common to the ones on the previous page. 3. R adjustment 1) Set to the R monochrome by lens cap. 2) Receive the image of Retma pattern. 3) Adjust the R electrical focus. Adjust by focus volume of the focus block (Z410) so that the screen center will come to optimum focus. 4) Adjust the R lens focus. Adjust so that the screen center will become the best. 5) Repeat 3, 4, and attempt to further improve the focus quality.
� 17 �
GENERAL ADJUSTMENTS
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