Yamaha HTR-3065, Service Manual

Page: 72 / 114

A B C D E F G H I J
1
2
3
4
5
6
7
72
RX-V373/HTR-3065
CB1
36
IC132 IC135 IC133 IC134 IC131
CB132
CB131
CB134
CB135
IC137 IC136
CB154
CB155
CB153 CB152
CB1
51
OPERATION (2)
(Side A)
POWER TRANSFORMER
U, C models
AC IN
OUT COM IN OUT COM IN OUT COM IN OUT COM IN 4 1
OPERATION (3)
(Side A)
AC
5
AC
5
AC
4
AC
4
AC
3
AC
3
AC
2 E
AC
2
-VP
PS_PR
T
-1
2A
A
GND
+1
2A
NC
POWER TRANSFORMER
OPERATION (1)
(CB102)
MAIN (1)
(CB2)
DIGITAL
(CB262)
R, S models
R, S models
R, S models
R, S models
U, C, T, K, A, B, G, F, L, H, J models
MGND
S9
PWR_RY
ACDET
MGND
S9
PWR_RY
ACDET
PWR_RY
MGND
+3.3M
+5A
N_PDET
CPU_N_RST
AGND DGND
THM1 THM2
+7D
+5T
-VP
AC6
AC6
+5.5U
UGND
5 k-ohms
10 W
U, C, R, K, A, B, G, F, L, S, H, J models
U, C, T, K, A, B, G, F, L, H, J models
U, C, T, K, A, B, G, F, L, H, J models
U, C, R, K, A, B, G, F, L, S, H, J models
Ref no. Location
D1307 C2
D1308 D3
D1309 D2
D1503 G5
D1504 G5
• Semiconductor Location
Ref no. Location
D1505 H5
D1506 H5
D1507 H5
IC131 H2
IC132 F2
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.
C1501 on OPERATION (3) 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。
OPERATION（3）P.C.B. の C1501
Ref no. Location
IC133 G2
IC134 G2
IC135 G2
IC136 D2
IC137 D2
Ref no. Location
Q1303 G3
Q1501 H7
Q1502 H7
Q1503 H7
Q1504 H6