Removal Of Function P.c.b.; Removal Of Dsp P.c.b.; Removal Of Operation P.c.b. - Yamaha RX-V459 Service Manual

3. Removal of FUNCTION (1) P.C.B.
a. Remove 2 screws (6). (Fig. 2)
b. Remove 7 screws (7). (Fig. 4)
c. Remove CB200-202, CB204, CB206 and CB207.
(Fig. 2)
d. Remove the FUNCTION (1) P.C.B.. (Fig. 2)

4. Removal of DSP P.C.B.

a. Remove 2 screws (8). (Fig. 2)
b. Remove 4 screws (U, C models) / 3 screws (R, T, K,
A, G, E, L models) (9). (Fig. 4)
c. Remove CB2-4, CB9 and CB57. (Fig. 2)
d. Remove the DSP P.C.B.. (Fig. 2)
5. Removal of OPERATION (2) P.C.B.
a. Remove 1 push rivet (0). (Fig. 3)
b. Remove 6 screws (A). (Fig. 4)
c. Remove CB251 and CB252. (Fig. 3)
b. Remove the OPERATION (2) P.C.B.. (Fig. 3)
6. Removal of FUNCTION (2) P.C.B.
a. Remove 1 push rivet (B). (Fig. 3)
b. Remove 5 screws (C). (Fig. 4)
c. Remove the FUNCTION (2) P.C.B.. (Fig. 3)
A 7 RX-V459/HTR-5940/DSP-AX459 models J model
HTR-5935 model
D I
7. Removal of TUNER
a. Remove 3 screws (D). (Fig. 4)
b. Remove the Tuner. (Fig. 5)
8. Removal of MAIN (1), (2), (4), (5) and YST (HTR-5835
model) P.C.B.s
a. Remove the Artbase/P.C.B.. (Fig. 5)
b. Remove 2 screws (E), 1 screw (F), 2 screws (G)
and 1 screw (H). (Fig. 5)
c. Remove 5 screws (I). (Fig. 4)
d. Remove CB103, CB104 and CB105 (U, C models). (Fig. 3)
e. Remove MAIN (1), (2), (4), (5) and YST (HTR-5835
model) P.C.B.s together with the Heat Sink. (Fig. 5)
6
7
8
9
0
A
B
C
9 U, C, R, T, K, A, G, E, L models U, C models
J model U, C, R, T, K, A, G, E, L models
C
Fig. 4
D
E F G H
I
MAIN (4) P.C.B.
MAIN (5) P.C.B.
F
G
E
E
MAIN (2) P.C.B.
Heat Sink
YST P.C.B. (HTR-5935)
Fig. 5
When checking the P.C.B.:
• Put a Cloth over the equipment. Put the 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 chassis does not work
because its grounding is loose. Be sure to connect
the ground of Rear Panel, MAIN (1) P.C.B. (G1001)
and OPERATION (4) P.C.B. (G3001) to the chassis
with a ground lead or the like. (Fig. 6)
Ground lead
G1001
MAIN (1) P.C.B.
Cloth
Fig. 6
RX-V459/HTR-5940/DSP-AX459
HTR-5935
Artbase / P.C.B.
Tuner
H
MAIN (1) P.C.B.
OPERATION (4) P.C.B.
G3001
Ground lead
15