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 12 (click to view)
HV-53PRO
MIRROR
Remove the SPEAKER GRILLE. Remove the CONTROL BOX. Remove the SCREEN ASS�Y. 1. Remove 2 screws marked attaching the mirror stopper. 2. Raise slightly to disengage of the mirror from the hooks. 3. Remove the MIRROR. NOTE : The MIRROR is front-coated. Do not touch the front of the MIRROR. At least 2 persons are recommended for removing are reassemble. HOOKS
PARTITION
Remove the REAR PANEL. 1. Remove the PARTITION back ward.
REAR COVER
REAR COVER
Remove the SPEAKER GRILLE. Remove the FRONT BOARD. Remove the CONTROL BOX. Remove the SCREEN ASS�Y. 1. Remove 2 screws marked attaching the REAR COVER. 2. Remove 2 screws marked attaching the REAR COVER from front side 3. Slightly pull for backside to disengage of the REAR COVER from hooks. 4. Remove the REAR PANEL.
K
PARTITION
I K I J
REAR PANEL
AV TERMINAL BOARD
Remove the REAR PANEL 1. Remove 5 screws marked . 2. Remove the power cord clamp from AV TERMINAL BOARD left side. 3. Remove the AV TERMINAL BOARD.