Yamaha HTR-5890 Service Manual page 12

HTR-5890
6. Removal of Fan
a. Remove 4 push rivets (A) and then remove the Cover.
(Fig. 8)
b. Remove CB32. (Fig. 8)
c. Remove 2 screws (B) and 2 screws (C). (Fig. 8)
d. Remove the Fan together with the frame by lifting them
up. (Fig. 8)
7. Removal of Amp Unit
a. Remove 2 push rivets (D) and then remove the Duct.
(Fig. 8)
b. Remove 4 screws (E) and 4 screws (F). (Fig. 8)
c. Remove the Amp Unit. (Fig. 8)
A
A
Cover
C
12
B
Fan
CB32
E
F
F
E
Fig. 8
When checking the Amp Unit:
• Put the Amp Unit together with the heat sink upright
on the art base and check them. (Fig. 9)
• Reconnect all cables (connectors) that have been
disconnected.
Be sure to use the extension cable for servicing for the
following section.
FUNCTION P.C.B. CB507 – POWER (1) P.C.B. CB22:
MF119500 (19P 500mm)
• When connecting the flat cable, use care for the
polarity.
Duct
D
Amp Unit
Amp Unit
MF119500
Fig. 9
Cloth