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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Text excerpt from page 5 (click to view)
SJ-68L-T2
DESIGNATION OF VARIOUS PARTS
The names are the denominations used in the REPLACEMENT PARTS LIST. 1. Freezer light(Lamp) 2. Freezer fan 3. Freezer shelf(F shelf ass'y) 4. Ice cube maker 5. Ice cube box(Ice storage box) 6. Freezer temp. control knob 7. Chilled case 8. Refrigerator temp. control knob 9. Refrigerator fan 10. Refrigerator light(Lamp) 11. Refrigerator shelf(R glass shelf ass'y) 12. Shelf(V glass shelf ass'y) 13. Fruit case 14. Vegetable crisper(Vegetable case) 15. Evaporating pan & cover 16. Caster 17. Adjustable feet(Adjustable leg ass'y) 18. Fan & light switch(for freezer) 19. Fan & light switch(for refrigerator) 20. Freezer pocket(F door pocket) 21. Water cup 22. Magnetic door seal(Door packing) 23. Utility pocket(Utility case pocket) 24. Egg holder(Egg tray) 25. Free pocket(R door pocket) 26. Bottle pocket 27. Bottle guard(Tube stand)
Figure D-1. External Description
Upper hinge cover Hot pipe
Freezer compartment
Mark: Cold air flow Freezer fan Fan motor Defrost thermostat Evaporator
Freezer temp. control knob
Defrost heater
Hot pipe
Refrigerator compartment
Timer, R-fan themo. ass�y Refrigerator fan Damper thermostat Refrigerator temp. control knob
Drain pipe Fruit case
Vegetable case Ventilating grille Evaporating pan Adjustable leg ass�y Compressor Starting relay, Overload relay(Protector) Sub. condenser Caster