Yamaha RX-V385 Service Manual page 92

A B
RX-V385/HTR-3072
1
MAIN (1)
(Side A)
2
3
4
POWER TRANSFORMER
5
5 k-ohms
10 W
5 k-ohms
10 W
6
7
92
C D
SPEAKERS
SURROUND/
CENTER FRONT
BI-AMP
L R L R
+/– +/– +/– +/–
BRIDGE DIODE W2104A
TEMPERATURE
E F
Safety measures
•
•
DIGITAL
安全対策
(CB22)
・ この製品の内部には高電圧部分があり危険です。修理の際は、絶縁性の手袋を使用するなどの安全対策を行ってください。
・ 下記のコンデンサには電源を OFF にした後も電荷が残り、高電圧が維持されており危険です。修理作業前に放電用抵抗
OPERATION (7)
PRE OUT
(CB477)
SUBWOOFER
W2104B
W2111
W2102A
OPERATION (4)
(CB522)
G H
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 indicated below to discharge electricity. The time required for discharging is about 30 seconds per each.
C2815, C2816 on MAIN (1) P.C.B.
（5 k Ω /10 W）を下記の各コンデンサの端子間に接続して放電してください。放電所用時間は各々約 30 秒間です。
MAIN（1）P.C.B. の C2815、C2816
AV 3 AV 2
L/R L/R
MAIN (3)
(CB272)
CB203
+12A
AGND
TUL
TUE
TUR
DISTR
W2002
DISTE
DISTL
ADR
ADE
ADL
AGND
DAFR
AGND
DAFL
AGND
DASR
DASL
AGND
DASW
DAC
AGND
DASBR
DASBL
MAIN (2)
(CB252)
I J
MAIN (2)
(CB254)
• Semiconductor Location
Ref no. Location
D2146 C5
Q2001 F3
Q2002 F4
Q2117 F5
Q2118 F5
Q2119 G5
Q2120 F5
Q2121 G5
Q2122 F6
Q2125 D6
Q2126 C6
Q2127 E6
Q2128 E6
Q2130 F5
Q2132 C5
Q2133 C5
Q2134 E5
Q2135 D5
Q2136 F6
Q2137 F6
Q2142 C6
Q2143 D6
Q2144 C6
Q2145 C6
Q2146 E6
Q2147 F6
Q2148 D6
Q2149 E6
Q2150 F6
Q2151 F6
Q2156 D6
Q2157 D6
Q2158 C6
Q2159 C6
Q2160 E6
Q2161 F6
Q2162 D6
Q2163 E6
Q2172 D5
Q2173 E5
Q2174 D5
Q2175 E5
Q2176 D5
Q2177 E5
Q2178 E4