Service Precautions - Yamaha RX-V681 Service Manual

RX-V681/RX-A760
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Front view
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■ SERVICE PRECAUTIONS

Safety measures
• Some internal parts in this product contain high voltages and are dangerous.
Be sure to take safety measures during servicing, such as wearing insulating gloves.
• Note that the capacitors indicated below are dangerous even after the power is turned off because an electric charge
remains and a high voltage continues to exist there.
Before starting any repair work, connect a discharging resistor (5 k-ohms/10 W) to the terminals of each capacitor indi-
cated below to discharge electricity.
The time required for discharging is about 30 seconds per each.
C1084 and C1085 on MAIN (1) P.C.B.
C3706 on OPERATION (3) P.C.B.
For details, refer to "PRINTED CIRCUIT BOARDS".
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RX-A760
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a OPERATION (3) P.C.B.
b OPERATION (8) P.C.B.
c Network Module
d DIGITAL (1) P.C.B.
e AM/FM TUNER
f OPERATION (2) P.C.B.
g OPERATION (9) P.C.B.
h OPERATION (4) P.C.B.
i MAIN (5) P.C.B.
j MAIN (4) P.C.B.
k MAIN (3) P.C.B.
l MAIN (1) P.C.B.
m MAIN (6) P.C.B.
n POWER TRANSFORMER
o OPERATION (5) P.C.B.
p OPERATION (1) P.C.B.
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q OPERATION (12) P.C.B.
r DIGITAL (2) P.C.B.
s OPERATION (11) P.C.B.
t OPERATION (6) P.C.B.
u OPERATION (7) P.C.B.
v OPERATION (10) P.C.B.