Yamaha HTY-7040, Service Manual

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A B C D E F G H I J
1
3
4
5
7
YSP-4000/YSP-40D/HTY-7040
6
74
CB508
CB507
IC511
IC506
IC503
IC502 CB501
IC510
IC509
CB506
IC520
CB504 CB505
IC505
IC501
CB503 CB502
(Side A)
POWER (1) P.C.B.
GND
A+5
AGND
+5I
D+12
IGND
XGND
iPOD_POWER
+12A
+12B
AGND
AGND
DGND
-30V
S3.3
POW_RY
RESET
PW_DOWN
D+12
+3.3V
DSP
(CB7)
INPUT
(CB11)
S6.3
SGND
SGND
SGND
S4.3
S4.3
HDMI
(CB5)
+12V +12V
MGND MGND
+12V +12V
MGND MGND
AMP
(W501)
AMP
(W502)
AC IN
5 k-ohms
10 W
5 k-ohms
10 W
OUT
OUT
IN
IN
COM
COM
OUT
IN
COM
1 5
1
4
7
5
U, C, V, J models K, A, B, G, E, L models K, A, B, G, E, L models
U, C, A, B models
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。
・ 下記箇所には電源を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 kΩ/10 W）
を下記箇所の端子間に接続して放電してください。放電所用時間は約30秒間です。
1. POWER（1）P.C.B.のC504／C505
2. POWER（1）P.C.B.のC518
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 positions 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, perform discharge by connecting a discharge resistor (5k-ohms/
10W) between terminals at following positions. The time required for discharging is about 30 seconds.
1. C504/C505 on POWER (1) P.C.B.
2. C518 on POWER (1) P.C.B.
D501 G4
D505 H5
D509 G5
D514 F5
D516 F5
D518 E4
D519 D4
D520 D4
D522 D5
D529 F4
• Semiconductor Location
Ref no. Location
D530 F5
D531 E3
D532 E3
D534 F5
D535 F4
D536 C3
D537 C3
D538 F3
D539 F3
D540 E3
IC501 F6
IC502 G3
IC503 F3
IC505 F6
IC506 F3
IC509 C4
IC510 D4
IC511 C3
IC520 C5
Q502 D2
Q503 E2
Q504 G5
Q506 D4
Ref no. Location Ref no. Location Ref no. Location Ref no. Location Ref no. Location Ref no. Location