19
RX-V550/HTR-5750
RX-V450/HTR-5740/DSP-AX450
FUNCTION (3) P.C.B.
DSP
P.C.B.
FUNCTION (7) P.C.B.
FUNCTION (5) P.C.B.
(U, C, A models only)
FUNCTION (8) P.C.B.
FUNCTION (4) P.C.B.
FUNCTION (6) P.C.B.
FUNCTION (1) P.C.B.
FUNCTION (2) P.C.B.
Tuner
Support/DSP
DSP P.C.B.
FUNCTION (2) P.C.B.
CB2
CB351
CB1
CB502
CB503
CB307
6
Top Cover
Front Panel Unit
Knob
Sub Chassis Unit
Plate Side
Plate Side
CB863
CB309
CB306
CB505
1
1
3
3
4
4
5
5
2
2
7
8
■
DISASSEMBLY PROCEDURES
Fig. 1
(Remove parts in the order as numbered.)
Disconnect the power cable from the AC outlet.
1. Removal of Top Cover
a. Remove 4 screws (
1
) and 4 screws (
2
). (Fig. 1)
b. Slide the Top Cover rearward to remove it. (Fig. 1)
2. Removal of Front Panel Unit
a. Remove 2 Knobs. (Fig. 1)
b. Remove 6 screws (
3
) and then remove the Front Panel Unit.
(Fig. 1)
3. Removal of Plate Side
a. Remove 2 push rivets (
4
). (Fig. 1)
b. Remove the Plate Side. (Fig. 1)
Fig. 2
5. Removal of DSP P.C.B.
a. Remove 1 screw (
6
). (Fig. 2)
b. Remove 7 screws (
7
). (Fig. 3)
c. Remove CB2. (Fig. 2)
d. Lift up the FUNCTION (2) P.C.B. and remove the CB1. (Fig. 2)
e. Remove the DSP P.C.B. with the Support/DSP. (Fig. 2)
Fig. 3
6. Removal of FUNCTION (1) ~ (8) P.C.B.s and Tuner
a. Remove CB307, CB351, CB502 and CB503. (Fig. 2)
b. Remove 21 (U, C, A models) / 20 (except U, C, A models)
screws (
8
). (Fig. 3)
c. Remove FUNCTION (1) ~ (8) P.C.B.s. and the Tuner. (Fig. 4)
RX-V550
4. Removal of Sub Chassis Unit
a. Remove 2 screws (
5
) and then slide the Sub Chassis Unit
forward. (Fig. 1)
b. Loosen the harness fixture fixing the cable.
c. Remove CB306, CB309, CB505 and CB863 and then remove
the Sub Chassis Unit. (Fig. 1)
Fig. 4
