Yamaha RX-V385, Service Manual

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W2102B
W2102A
CB202
CB201
CB222
W2111
W2104B
CB203
W2002
W2104A
MAIN (1)
(Side A)
CENTER
SURROUND/
BI-AMP
SPEAKERS
FRONT
AV 2 AV 3
L/R L/R
L
+/– +/–
R L
+/– +/–
R
PRE OUT
SUBWOOFER
MAIN (3)
(CB272)
MAIN (2)
(CB252)
OPERATION (7)
(CB477)
DIGITAL
(CB22)
OPERATION (4)
(CB522)
MAIN (2)
(CB254)
POWER TRANSFORMER
5 k-ohms
10 W
5 k-ohms
10 W
BRIDGE DIODE
TEMPERATURE
AGND
DASR
AGND
ADR
AGND
DASBL
ADL
DASW
AGND
DASL
ADE
DASBR
DAFL
AGND
DAFR
DAC
DISTR
TUE
DISTL
DISTE
+12A
TUR
AGND
TUL
AUXR AUXL MIC AGND AUXE +12A -12A
HPR HP_N_DET HPE HPL
+12RY AG2 -12RY
MUTE_S PS1_PRT MUTE_SW
VOL_MOSI SPRY_3CH
HPRY AMP_OLV
HP_N_DET SPRY_SB
DGND TRANS_RY VOL_SCK
THM2_PRT I_PRT AMP_LMT
DC_PRT
MUTE_3ch MUTE_SB
SPRY_SUR
A B C D E F G H I J
1
2
3
4
5
6
7
92
RX-V385/HTR-3072
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 indicated below to discharge electricity. The time required for discharging is about 30 seconds per each.
C2815, C2816 on MAIN (1) P.C.B.
安全対策
・ 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
（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
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
• Semiconductor Location