Yamaha RX-V381 Service Manual page 80

A B
RX-V381/HTR-3069
1
OPERATION (2)
(Side A)
U, C, R, K, A, B, G,
F, L, V, S, J models
2
R, V, S models
3
R, V, S models
4
OPERATION (4)
5 k-ohms
10 W
5
OPERATION (1)
(CB403)
6
5 k-ohms
10 W
POWER TRANSFORMER
7
80
C D
CB541
POWER TRANSFORMER
U, C, R, K, A, B, G, R, V, S models
F, L, V, S, J models
(Side A)
R, T, K, B, G, F, L, V, S models
+5.5U
UGND
F1
+40F CB526
F2
CB525
CB524
5 k-ohms
10 W
E F
U, C, R, K, A, B, G, F, L, V, S, J models
CB542
AC IN
R, V, S models
CB543
R, T, K, B, G, F, L, V, S models
HEATSINK
5 k-ohms
TEMPARETURE
10 W
GND
VCC OUT
IC524
CB522
MAIN (1)
(CB2)
G H I
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.
C5214, C5215, C5219, C5224 on OPERATION (4) 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（4）P.C.B. の C5214、C5215、C5219、C5224
R, V, S models
IC526 IC522 IC521
IC523
CB521
DIGITAL
(CB262)
J
• Semiconductor Location
Ref no. Location
D5208 F5
D5209 D5
D5212 C6
D5404 D2
D5405 C2
D5406 C2
D5407 C2
D5408 C2
IC521 H4
IC522 H4
IC523 H4
IC524 F4
IC525 I4
IC526 G4
Q5204 I6
Q5401 D4
Q5402 D4
Q5403 D4
Q5404 D3
IC525