Yamaha YSP-3000 Service Manual page 11

When checking the P.C.B.s:
* Put the rubber sheet and cloth over the equipment.
Then place the P.C.B.s upside down on the cloth and
check it. (Fig. 6)
* Reconnect all cables (connectors) that have been
disconnected.
Be sure to use the extension cable before servicing
the following section.
POWER (1) P.C.B. CB506_POWER (2) P.C.B. W901:
MF404250 (4P, 250mm)
* When connecting the flexible flat cable, be careful
with polarity.
* In this unit, the ground of P.C.B.s is connected to the
panel or chassis. When these P.C.B.s are removed
from the panel or chassis, connect the ground point to
the panel or chassis, using a ground lead wire or such.
(Fig. 6)
Flame input
INPUT P.C.B.
Ground lead
FM tuner (U, C, K, A, G, E, L, V models)
/ DAB module (B model)
Ground lead
Flame HDMI
G1
CB506
G502
HDMI P.C.B.
POWER (2) P.C.B.
Ground lead
Fig. 6
YSP-3000/YSP-30D/HTY-7030
MF404250
POWER (1) P.C.B.
Rubber sheet and cloth
W901
G501
Ground lead
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