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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.
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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.
�. Re-Adjustment
Ａ���� changing the Signal Board or Panel Module, re-adjustment is needed according to the item 7.1 to 7.5 . For Video Board, item 7.3 to 7.5 are needed. 7.1 Personal Computer (PC) input black level/fundamental amplitude adjustment How to prepare 1.Connect RGB input terminal VGA (75), 0.7Vpeak, no-set up, horizontal 16 stairs bar signal. Initial adjustment data must be 8 bit resolution. 2.Appear and adjust screen OSD Menu of Picture: Contrast:: Max, Brightness: 0, and options are Color select: NORM, GAMMA: 1.0, Video level: 0.7V Set adjustment No. 246, 247 and 248 scale to 16 . Adjustment No240 is GAMMA function.( 0=GAMMA1.0, 1=GAMMA2.2) How to adjust 1.Set factory preset mode and adjust as follows by Remote Control Transmitter. 2.Set adjustment No.41 to just darken black level.(GAMMA1.0) 3.Set adjustment No.42 to just darken black level.(GAMMA1.0) 4.Set adjustment No.43 to just darken black level.(GAMMA1.0) 5.Connect Full black signal and check that no residual color area is observed. If residual color area is observed, re-adjust No.41, 42 and 43 to disappear it. 6.At adjustment No.44, adjust that 2nd step of White peak is just distinguished.(GAMMA=2.2) 7.At adjustment No.45, adjust that 2nd step of White peak is just distinguished.(GAMMA2.2) 8.At adjustment No.46, adjust that 2nd step of White peak is just distinguished.(GAMMA2.2) 9.Change to No47. 10. Check that setup level is darken and also 2nd step of white level is distinguished. 11.Check that 2nd step of white peak is distinguishable. Tolerance of each color adjustment numbers are less than 7. If more than 7. re-adjust from above 2. step. 7.2 PC color temperature adjustment How to prepare 1. Set factory preset mode. 2. Connect window pattern signal (25% of display area) VGA (75), 0.7Vp-p without set up signal . 3. Window pattern (R, G and B) should be 8 bit resolution each. 4. Appear and adjust Screen OSD menu of Picture. Contrast: Max, Brightness: 0, and options are Color select: NORM, GAMMA: 2.2, Video level: 0.7V Set adjustment No. 246, 247 and 248 scale to 16 . Video input level should be 0.7Vp-p. How to adjust 1.Set factory preset mode and adjust as follows by Remote Control Transmitter. 2.Measurement probe of CRT Color Analyzer CA-100 is set on the center of screen. (Center of white peak signal.) 3.Adjust color temperature as follows by reducing one or two numbers of No.32, 33, 34.
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