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The manual was of good quality with high resolution schematic diagrams.
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The manual was very clear and contained all the information I was looking for. My dishwasher is working again because of this servicemanual!
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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!!!!
2.6.2 Adjustment of the Tension Arm and Pad Arm Assemblies Use Fig. 2-6-2 as the reference unless otherwise specified. 1. Set the PLAY mode. Se Fig. 2-3-8. 2. Loosen the screw A . 3. With the take-up side at the bottom, align the extreme end of the Tension Arm Assembly with the crossed grooves on the screw B that retains the Loading Motor Assembly and then tighten the screw A . The tightening torque should be 0.069 N�m (0.7 kgf�cm). 4. Check the operation. Repeat unloading and loading several times and make sure that the Tension Arm Assembly is located within the normal range. Note : With the above checking method, a Torque Meter is not used. When a Torque meter is used, the following are the reference values: Back Tension : 1.96 to 5.88 mN�m x 0.1 (2 to 6 g�cm) Play Torque : 6.86 to 10.78 mN�m x 0.1 (7 to 11g�cm)
SCREW B TENSIOM ARM ASSY
2, 3 SCREW A
Fig. 2-6-2
2.6.3 Adjustment of the Slide Lever 2 Use Fig. 2-6-3 as the reference unless otherwise specified. 1. Set the C IN mode. See Fig. 2-3-4. 2. Loosen the screw A . 3. Set the Main Deck and Slide Deck Assemblies apart so that they do not rattle, then tighten the screw A by screwing it fully toward the Drum Assembly. The tightening torque should be 0.069 N�m (0.7 kgf�cm). 4. Check the operation. Repeat unloading and loading several times and make sure that these operations can be performed smoothly without producing rattles.
3
2, 3 SCREW A
3
Fig. 2-6-3
2-16
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