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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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CHAPTER 2
2. A/D Conversion Output signal from the CCD is an analog signal which cannot be used as image data. So RGB output signal from the CCD is amplified by analog amplifier to generate analog data. The generated data is converted into averaged analog signal by D/A converter, then got feedback to the A/D converter to output constant digital data to the ASIC.
D/A Converter
CCD
R G B
Analog Amplifier
A/D Converter
Digital data To ASIC
Analog IC
Figure 2-13
1) D/A Converter D/A converter removes ununiform analog data generated by the CCD. It adjusts CCD output to keep max. 5V of input signal to the A/D converter, to make the black level of the image constant. 2) A/D Converter The A/D converter converts the black-level-corrected image signal (analog signal) to a 16-bit image data (digital signal) in the order of red, green and blue image signal. 5V is applied to the Vcc terminal and reference voltage is applied to the Vref terminal. A/D converter outputs �0� when input signal is 5V, and outputs �255� when input signal is reference voltage. This converts 1 pixel signal into the image data of 65536 gradations for red, green and blue each.
Image Data 01 01 01 01 01 01 +5V Vcc 01 01
A/D Converter Blue Image Signal Green Image Signal Red Image Signal Reference Voltage CCD_B CCD_G CCD_R Vref Output
Figure 2-14
COPYRIGHT  2002 CANON INC. CANOSCAN 8000F REV.0 OCT. 2002 PRINTED IN JAPAN (IMPRIME AU JAPON)
2 - 13
 $4.99 CS8000F CANON
Parts Catalog Parts Catalog only. It's available in PDF format. Useful, if Your equipment is broken and You need t…
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