Yamaha R-N402, Руководство по обслуживанию

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11
R-N402/R-N402D
R-N402/R-N402D
■
DISASSEMBLY PROCEDURES
( R emove parts in the order as numbered.)
D isconnect the power cable from the A C outlet.
1. Removal of Top Cover
a. R emove screw (
1
), 4 screws (
2
) and 6 screws (
3
). (Fig. 1)
b. R emove the top cover. (Fig. 1)
2. Removal of Front Panel Unit and Sub-Chassis Unit
a. R emove the knobs. (Fig. 1)
b. R emove 5 screws (
4
). (Fig. 1)
c. R elease 6 hooks (
A
) and then remove the front panel unit forward. (Fig. 1)
d. R emove screw (
5
) and 6 screws (
6
). (Fig. 1)
e. R emove C B 101, C B 201, C B 301 ( D I G I TA L (1)), C B 301 (M A I N (1)) and C B5 03. (Fig. 1)
f. R elease 2 hooks (
B
) and then remove the sub-chassis unit. (Fig. 1)
Front panel unit
Knob
Sub-chassis unit
4
6
6
5
6
MAIN (5) P.C.B.
CB101 (MAIN (1) P.C.B.)
CB301 (MAIN (1) P.C.B.)
CB301 (DIGITAL (1) P.C.B.)
CB503
DIGITAL (1) P.C.B.
MAIN (1) P.C.B.
③
②
Top cover
③
③
②
①
Hook B
Hook B
Hook
A
Hook
A
CB201
MAIN (2) P.C.B.
Fig. 1