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.
Text excerpt from page 160 (click to view)
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How to replace the fan in the ATX Power Supply unit
A
Removing the fan
1 Remove the switch-barrier fixing screw on the ATX Power Supply unit (DXF1001) then slide the switch barrier, as indicated in the figure. Note: Be sure to set the POWER switch to OFF and disconnect the AC power cord from the AC outlet before starting this step.
Switch-barrier fixing screw Switch barrier ATX Power Supply Unit (DXF1001)
B
2 Remove the fan guard, then remove the fan and disconnect the harness from the fan connector.
C
Fan Cleaning
Fan connector Remove the fan.
Cleaning paper : GED-008
Attaching the fan
1 Connect the harness to the fan connector and install the fan into the panel. Push the harness inside.
Notes: � Place the fan so that the name plate of the fan can be seen from the front. � Use the Fan Unit (DZM1001) dedicated to the ATX Power Supply unit (DXF1001).
Fan Cleaning Cleaning paper : GED-008
D
Push the harness inside so that it will not come out. Name plate can be seen.
