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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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2-4. Notes on Service
D12, D13, Q3, Q101 (PS-543 board) : Mount the part so as to be perpendicular to the board surface. Cover Q3 and Q101 with the AC heat conductive sheet. Refer to Section 2-10-2 �Removing/Installing the PS-543/544 Boards� for details. n If the sheet has breaks or cracks, be sure to replace it with a new one. AC heat conductive sheet : Sony P/N 3-615-731-0X Installing AC heat conductive sheet (1) Fold the AC heat conductive sheet into half. Fit the two projections on the AC shield chassis into the holes on the AC heat conductive sheet. (2) Affix the AC insulating sheet to the AC shield chassis with a new double-sided tape.
AC heat conductive sheet Double-sided tape
AC insulating sheet
AC shielding chassis Projections
F1 (PS-543 board) : Cut the vinyl tube (ø7.3 mm) to the specified length and cover F1 with it before mounting. Vinyl tube : Sony P/N 7-635-003-19
F1 23 ±2 mm Vinyl tube
R7 (PS-543 board) : Cut the leads of R7 as shown in the figure before mounting.
R7
Cut
Cut
Cutting leads : Cut the leads of mounted parts protruding from the B side of the board to the specified length. PS-543 board : 2.5 mm or less PS-544 board : 1 mm or less
Cut leads
2-6 (E)
CA-570 CA-570P
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