Nakamichi 481 Service Manual - page 21
3.9. Main P.C.B. Ass’y
Refer to Fig. 3.3.
(1) Refer to Fig. 3.2. Remove Front Panel Ass’y referring to item
3.4.
(2) Remove 5 connectors and the wires connected by wrapping
from the F05 (Main P.C.B. Ass’y).
(3) Remove F01, F02, F03, F04 and the Record Switch Linkage
from the Wire Holder assembled with Record Switch, then
disassemble F05 (Main P.C.B. Ass’y).
3.10. Control Switch Holder Ass’y
Refer to Fig. 3.3.
(1) Refer to Fig. 3.2. Remove Meter Ass’y referring to item 3.7.
(2) Remove F06, then disassemble F07 (Control Switch Holder
Ass’y).
3.11. Switch P.C.B. Ass'y
Refer to Fig. 3.3.
(1) Refer to Fig. 3.2. Remove Front Panel Ass’y referring to item
3.4.
(2) Remove F08, then disassemble F09 (Switch P.C.B. Ass’y).
3.12. Volume P.C.B. Ass’y and Control Switch P.C.B. Ass’y
Refer to Fig. 3.3.
(1) Remove Control Switch Holder Ass’y referring to item 3.10.
(2) Remove F10, then disassemble F11 (Volume P.C.B. Ass’y).
(3) Remove F12, then disassemble F13 (Control Button Spring).
(4) Remove F14 (Control Button Shaft), then disassemble F15
(Control Buttons).
(5) Remove F16, then disassemble F17 (Control Switch P.C.B.
Ass’y).
3.13. Rear Panel Ass’y, Power Transformer and Power Switch
Refer to Fig. 3.4.
(1) Refer to Fig. 3.1. Remove Top Cover Ass’y and Bottom Cover
Ass’y referring to items 3.2 and 3.3.
(2) Remove F01, F02 and F03, then disassemble F04 (Rear
Panel Ass’y).
(3) Remove F05 and F06, then disassemble F07 (Power
Transformer).
(4) Remove Power Switch Joint Bar by releasing the
self-interlocking pin of the Power Switch Joint Bar from Power
Switch and F08, then disassemble F09 (Power Switch Holder Ass’y).
(5) Remove F10, then disassemble F11 (Power Switch).
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