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tres bon document
cela a permis de verifier la connection de l'ecran
merci
salutations
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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.
2 Adjusting speed reduction belt tension
Whenever the reduction belt is removed, the reduction tension needs to be adjusted.
4 Adjusting first belt tension and second belt tension
Whenever the first and second tension belts are installed, make sure to adjust their belt tension again.
1 Temporarily tighten the main motor screws to the extent that the
main motor can be moved.
1 Temporarily install the motor unit. 2 Pass the second belt through the first pulley and motor unit. 3 Secure the motor unit by pulling by a force of 1.5 kg-f. 4 Temporarily install the follower pulley (with angle). 5 Pass the first belt through the first pulley and the follower pulley. 6 Secure the follower pulley by pulling by a force of 2.0 kg-f.
2 Pass the reduction belt through the main motor and the reduction
pulley.
3 Pulling the motor in the direction of the connector by a force of
500 gf, secure it with the screws.
3 Adjusting first and second carriage fitting positions
After adjusting the belt tensions, reinstall the first and second carriages as follows:
1 Install the second carriage on the second belt. 2 Push the second carriage forward (LED-PWB side) until it contacts the frame.
3 Install the first carriage on the first belt. (The first carriage should
be installed at a place as close to the second carriage as possible.
4 Push the first carriage forward (LED-PWB side), skipping teeth,
until it contacts the second carriage.
5 Skip the first carriage backward (SCSI cable side) by on tooth or
about 2 mm.
9�3
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