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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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INTERLOCK MECHANISM AND ADJUSTMENT
The door lock m echanism is a device which has been specially designed to com pletely elim inate m icrowave radiation when the door is opened during operation, and thus to perfectly prevent the danger resulting from the leakage of microwave.
(1) Prim ary interlock switch W hen the door is closed, the hook locks the oven door. If the door is not closed properly, the oven will not operate. W hen the door is closed, the hook pushes the button of the m icroswitch. Then the button of the primary interlock switch bring it under ON condition. (2) Secondary interlock switch and interlock m onitor switch W hen the door is closed, the hook pushes the lock lever downward. The lock lever presses the button of the interlock m onitor switch to bring it under NO condition and presses the button of the secondary interlock switch to bring it under ON condition.
ADJUSTMENT
Interlock m onitor switch W hen the door is closed, the interlock m onitor sw itch should be changed(NO condition) before other switches are closed. W hen the door is opened, the interlock m onitor sw itch should be changed(NC condition) after other switches are opened.
(3) Adjustm ent steps a) Loosen the one m ounting screw. b) Adjust interlock switch assem bly position. c) M ake sure that lock lever m oves sm oothly after adjustm ent is com pleted. d) Tighten com pletely one m ounting screw.
NOTE
M icrow ave em ission test should be perform ed after adjusting interlock m echanism . If the m icrow ave em ission exceed 4m W /cm 2 , readjust interlock m echanism .
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