Specifications

RX-V550/HTR-5750
RX-V450/HTR-5740/DSP-AX450
20
Top Cover
トップカバー
Front Panel Unit
フロントパネルユニット
CB309
CB306
CB505
CB863
1
1
3
3
3
2
2
Cloth
布
CB354
CB351
CB503
MAIN (1) P.C.B.
MAIN (7) P.C.B.
MAIN (5) P.C.B.
POWER (1) P.C.B.
0
9
9
A
A
7. Removal of MAIN (1), MAIN (5), MAIN (7) and
POWER (1) P.C.B.s
a. Remove CB351, CB354 and CB503. (Fig. 5)
b. Remove 2 screws (9), 2 screws (0) and 3 screws (A).
(Fig. 5)
c. Remove MAIN (1), MAIN (5), MAIN (7) and POWER (1)
P.C.B.s.. (Fig. 5)
When checking the P.C.B.:
Put a Cloth over the equipment. Put the MAIN (1), (5), (7)
and POWER (1) P.C.B.s together with the heat sink upright
on the Cloth and check them. (Fig. 6)
Reconnect all cables (connectors) that have been
disconnected.
When connecting the flat cable, use care for the polarity.
The P.C.B. removed from the rear panel does not work
because its grounding is loose. Be sure to connect the
ground of each P.C.B. to the chassis or GND with a jumper
wire or the like.
Fig. 6
Fig. 5
DISASSEMBLY PROCEDURES / 分解手順
HTR-5750 RX-V450/HTR-5740/DSP-AX450
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 7 screws (3) and then slide the Front Panel Unit
forward. (Fig. 1)
b. Loosen the harness fixture fixing the cable.
c. Remove CB306, CB309, CB505 and CB863 and then remove
the Front Panel Unit. (Fig. 1)
(番号順に部品を取い。
AC電源ンセトから、電源ドを抜いてい。
1.プカバーの外し方
a. 1のネジ4本、2のネジ4本をす。(Fig. 1)
b. トプカバーを後方ライドさ取り外します(Fig. 1)
2. フパネルユニトの
a. 3のネジ7本をフロンパネルユニトを 引き出しま
す。(Fig. 1)
b. ーブ定しているをゆるめます
c. CB306CB309CB505CB863フロントパ
ニットをり外しま(Fig. 1)
Fig. 2
3. DSP P.C.B.の外
a. 4のネジ1本を外す。(Fig. 2)
b. 5のネジ5本を外す。(Fig. 3)
c. CB2を外す。(Fig. 2)
d. FUNCTION(2) P.C.B.上部に浮かせCB1を(Fig.
2)
e. DSP P.C.B.をサポー/DSPに取(Fig. 2)
3. Removal of DSP P.C.B.
a. Remove 1 screw (4). (Fig. 2)
b. Remove 7 (HTR-5750), 5 (RX-V450, HTR-5740) screws (5).
(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)