Internal View; Rear Panels; Disassembly Procedures - Yamaha MCR-E810 Service Manual

RX-E810/RX-E410/NX-E800
I INTERNAL VIEW
1 2 3 4 5 6
7 8 9 0
I DISASSEMBLY PROCEDURES
(Remove parts in disassembly order as numbered.)
1. Removal of Top Cover
a. Remove 4 screws (1) and 4 screws (2). (Fig. 1)
b. Lift the top cover at the rear and move it rearward slantingly.
(Fig. 1)
2
Top cover
1
1
Front panel unit
Hook
3
0
5
4 3
Hook
Fig. 1
8
1
MAIN (3) P.C.B. (U, C, T, A, B, G, L, V models)
2
Power Transformer
3
MAIN (2) P.C.B.
4
AM / FM Tuner
5
OPERATION (2) P.C.B.
6
INPUT (1) P.C.B.
7
OPERATION (1) P.C.B.
8
INPUT (2) P.C.B.
9
MAIN (1) P.C.B.
0
MAIN (4) P.C.B.
2. Removal of Front Panel
a. Remove CB18, CB21, CB200, CB201 and CB209. (Fig. 2)
b. Remove 2 screws (3), 2 screws (4) and 1 screw (5).
(Fig. 1)
c. Release 2 hooks and remove the front panel unit by pull-
ing it forward. (Fig. 1)
Front panel unit
CB21
MAIN (4) P.C.B.
CB201
CB18
CB200
CB209
INPUT (1) P.C.B.
INPUT (2) P.C.B.
MAIN (1) P.C.B.
Fig. 2
• When checking the P.C.B.:
a. Remove the top cover and the front panel unit.
b. Remove 2 screws (6). (Fig. 3)
c. Remove the OPERATION (2) P.C.B. which is con-
nected directly to the lower P.C.B. with connections.
d. Remove 6 screws (7). (Fig. 4)
e. Remove 5 screws (8). (Fig. 4)
f. Remove 2 screws (9). (Fig. 3)
g. Remove 1 screw (0). (Fig. 1)
h. Reinstall the OPERATION (2) P.C.B..
i. Reinstall 2 screws (6). (Fig. 3)
j. Remove the power transformer and MAIN P.C.B. (with
the rear panel attached) from the main chassis. (Fig. 5)
OPERATION (2) P.C.B.
6
9
Fig. 3
7
8
7
Main chassis
Fig. 4
k. With the rear panel attached, set the MAIN P.C.B. on its
side.
At this time, set the power transformer on its side as
well. (Fig. 5)
l. Using a ground lead or the like, connect G2 and G4 of
the MAIN P.C.B. with the rear panel. (Fig. 5)
m. With the front panel unit set on its side, reconnect 5 con-
nectors (CB18, CB21, CB200, CB201, CB209). ( Fig. 6)
n. Connect the power cable, turn on the power and check
for operation.
Power transformer Ground lead
G4
G2
Heat sink
Rear panel Ground lead MAIN (1) P.C.B.
Fig. 5
CB209
CB200 CB18 CB21
CB201 Front panel unit
Fig. 6