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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.
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Perfect source for service manuals: fast and professional transaction; high quality, perfect readable and largely scaleable PDF; complete schemes, diagrams and spare part list. Tnx a lot, cu again!!!!
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I got your link from a friend and I must say that I am really satisfied with your service. Specially this B&O manual I didn't find anywhere on the web... but you could deliver it :-) . You deliver very fast and the copy is of good quality. So your webpage is bookmarked. Thanks
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This was the Sony CCU-500A Service manual I was looking for.
The price was reasonable.
The permission to download was quck.
I will use Owner-Manual.com for all my manual needs.
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Excellent printing quality.
A complete and very usefull service manual with all details.
GREAT SERVICE AT VERY LOW PRICE!
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AV21BF10ENS AV21BF10EES AV21BF10EJS AV21BF10EPS
Item 4: 3 HORIZONTAL SHIFT Ad justment Measuring instruments Signal gener ator Test point Ad justment part Ad just 12 ( 4 : 3 ) Ad just 23 ( 16 : 9 ) Description 1. Receive a RED test pattern. 2. Set < 4 : 3 aspect m od e >. 3. Select < ADJUST 12 > from SERVICE MENU. 4. Change horizontal shift till the picture is horizontally centered. Check whether this adjustment is correct after completing Service Mode Adjustment. 5. Set < 16 : 9 aspect mode >. 6. Adjusts with the step whic h is the same above from 3 to 4 about the 16 : 9 aspect mode, too. VERTICAL SLOPE Ad justment Signal gener ator Ad just 13 ( 4 : 3 ) Ad just 24 ( 16 : 9 ) 1. 2. 3. 4. Receive a cross-hatch signal. Set < 4 : 3 aspect m od e >. Select < ADJUST 13 > from SERVICE MENU. Change vertic al slope till the size of squares on both the upper and lower part of tes t pattern bec ome equal to the squares laying on the vertical center of the test pattern. Check and readjust VERTICAL SLOPE item if the adjustment becomes improper after some other geometric adjustments are done. 5. Set < 16 : 9 aspect mode >. 6. Adjusts with the step whic h is the same above from 3 to 4 about the 16 : 9 aspect mode, too. 1. Receive a PAL tes t pattern signal. 2. Set < 4 : 3 aspect m od e >. 3. Select < ADJUST 14 > from SERVICE MENU. 4. Change vertical s lope till horizontal black lines on both the upper and lower part of the test pattern bec ome very close to the upper and lower horizontal sides of picture tube and nearly about to disappear. Check and readjust VERTICAL AMPLITUDE item if the adjustment becomes improper after some other geometric adjus tments are done. 5. Set < 16 : 9 aspect mode >. 6. Adjusts with the step whic h is the same above from 3 to 4 about the 16 : 9 aspect mode, too.
VERTICAL AM P LIT UDE Ad justment
Signal gener ator
Ad just 14 ( 4 : 3 ) Ad just 25 ( 16 : 9 )
14
No. 51884
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