Yamaha DSP-AX863SE Service Manual page 21

When checking the P.C.B.:
• Put the rubber sheet and cloth over the equipment.
Then place the FUNCTION(1) and DIGITAL P.C.B.s
upside down on the cloth and check it. (Fig. 11)
• Reconnect all cables (connectors) that have been
disconnected.
• When connecting the flexible flat cable, be careful
with polarity.
• Be sure to use the extension cable for servicing for
the following section. (Fig. 11)
FUNCTION (1) P.C.B. CB205–DIGITAL P.C.B. CB61:
MF125400 (25P, 400mm, P=1.25)
DIGITAL P.C.B. CB80–VIDEO (1) P.C.B. CB305:
MF126500 (26P, 500mm, P=1.25)
DIGITAL P.C.B. CB81–VIDEO (2) P.C.B. CB302:
MF116400 (16P, 400mm, P=1.25)
• In this unit, the ground of P.C.B.s shown below is
connected to the rear panel and chassis.
When FUNCTION(1) P.C.B. is removed from the rear
panel and chassis, connect the ground point to the
rear panel or chassis, using a ground lead or the like.
(Fig. 11)
FUNCTION (1) P.C.B.: PJ201 (PHONO)
FUNCTION (1) P.C.B.: PJ203 (DVD)
FUNCTION (1) P.C.B.: PJ209 (PRE OUT)
FUNCTION (1) P.C.B.: PJ294 (SUBWOOFER2)
DIGITAL P.C.B.: ST100
DIGITAL P.C.B.: PJ41 (DVD COAXIAL INPUT)
DIGITAL P.C.B.: G100, G300
DIGITAL P.C.B.: ST41 (XM) (U, C models)
Ground point
DIGITAL P.C.B.
PJ41 ST100
PJ294
PJ209 PJ203
Ground lead
CB80
FUNCTION (1) P.C.B.
G100
CB205
CB61
DIGITAL P.C.B.
MF116400
Ground lead
Ground lead
G300
MF125400
Tuner
Fig. 11
RX-V863/HTR-6180/DSP-AX863SE/DSP-AX863
Ground point
FUNCTION (1) P.C.B.
PJ201
(R, T, K, A,
B, G, E, F,
L, J models)
Rubber sheet and cloth
CB81
CB305
MF126500
VIDEO (1) P.C.B.
CB302
VIDEO (2) P.C.B.
Rear panel
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