Yamaha RX-V475 Service Manual page 98

A B
RX-V475/HTR-4066/RX-V500D
1
MAIN (1)
(Side A)
2
AV1
MAIN (5)
OPTICAL
(CB372)
MAIN (3)
(CB272)
+5DSP
DGND
3
AV1_D
AV2_D
DGND
AV3_D
AV4_D
AE
+12A
AE
TUL
TUE
TUR
NETR
AE
NETL
4
ADR
ADE
ADL
AE
DAFR
AE
DAFL
AE
DASR
DASL
AE
DASW
DAC
AE
DASBR
DASBL
-12V
+12V
MAIN (2)
5
(CB252)
6
7
98
C D
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.
C2084, C2085 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 C2084、C2085
AV2 AV3 AV4 AV5 AV6 AV
OUT
COAXIAL COAXIAL OPTICAL
(TV)
L/R L/R L/R
W2006
W2012A
RE W2001A
W2001C
E F
RX-V475/HTR-4066 RX-V500D
R FRONT L
SUBWOOFER +/- +/-
AUDIO
PRE OUT
OPERATION (7)
(CB477)
L/R
W2007B
W2005
CB211
CB207
W2013A
BE
G H
• Semiconductor Location
Ref no. Location
D2044
D2046
Q2015
Q2016
Q2017
Q2018
Q2019
SPEAKERS
Q2022
CENTER R SURROUND L
Q2023
+/- +/-
W2007A
RE
W2001D
BE
W2001B
5 k-ohms
10 W
5 k-ohms
10 W
I J
Ref no. Location Ref no. Location
I4 Q2024 G7 Q2037 D6
H5 Q2025 H7 Q2038 D6
Q2028 D7 Q2039 C6
C5
C5 Q2029 C5 Q2040 C6
Q2030 E5 Q2041 B6
C5
E5 Q2031 D6 Q2042 G6
E5 Q2032 G6 Q2043 G6
C7 Q2033 H6 Q2044 H6
B7 Q2036 D6 Q2045 H6
C
FL
FR
SBR
SBL
SL
SR
DIGITAL
(CB22)
AC_BH
OPERATION (4)
AC_BH
(CB522)
E
E
AC_BL
AC_BL
POWER
TRANSFORMER
Ref no. Location Ref no. Location
Q2050 D6 Q2059 H6
Q2051 D6 Q2072 F5
Q2052 D6 Q2073 F5
Q2053 C6 Q2074 G5
Q2054 C6 Q2075 F5
Q2055 B6 Q2076 G5
Q2056 G6 Q2077 F4
Q2057 G6 Q2078 F4
Q2058 H6 Q2090 I3