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 8 (click to view)
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23 4857817611 CLOTH BLACK 6 FELT TO.7 200¡¿20 22 7122401612 SCREW TAPPING 9 T2S TRS 4¡¿16 MFZN C/B+M/F 21 4852148901 COVER BACK 1 HIPS BK 20 CRT 1 19 4856015700 SCREW CRT FIXING 4 SWRM+SK-5L=27§� 18 4856215402 WASHER RUBBER 4 CR 17 MAIN PCB AS 1 CP-775 16 4854934001 BUTTON 1 ABS BK 15 4857817612 CLOTH BLACK 3 FELT TO.7 250¡¿20 14 7121401611 SCREW TAPPING 20 T2S PAN 4¡¿16 MFZN BRKT+M/F 13 4853414501 BRKT CRT 4 ABS NC 12 4853311601 RETAINER BACK 7 HIPS NC 11 4852062401 MASK FRONT 1 HIPS BK 10 7122401212 SCREW TAPPING 8 T2S TRS 4¡¿12 MFZN SPK+M/F 9 SPK 2 8 4852535101 GRILL SPK R 1 EGI TO.5 7 4857923300 DOOR LOCK 1 LA701(KIFCO) 29 4858213800 BAG POLY PE FILM TO.06¡¿250¡¿350 6 4855617401 MARK BRAND 1 AL(SILVER) 28 4858215400 PE FILM 5 4855058201 DECO CTRL 1 PVC TO.3 27 6520010100 STAPLE PIN 12 18M/M JDO 4 4852820601 DOOR 1 PC SMOG 26 4858037300 BOX CARTON DW-3 3 4856717900 SPRING 1 SWPA(� 6.4¡¿16 TO.5) 25 4858164200 PAD EPS 2895 2 4854849201 BUTTON POWER 1 ABS BK 24 4855415800 SPEC PLATE 150ART P/E FILM 4852534901 GRILL SPK L 1 EGI TO.5
