Yamaha YSP-3000 Service Manual page 72

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A
B
YSP-3000/YSP-30D/HTY-7030
1
POWER (1) P.C.B.
(Side A)
POWER (2)
2
CB506
+5.8V
SGND
SGND
SGND
+4.3V
3
+4.3V
HDMI
(CB5)
4
SGND
S3.3
SGND
XGND
IGND
D+12
NC
D+12
POW_RY
DGND
RESET
DGND
PW_DOWN
+5V
VOL_DET
-24V
AGND
A+12
AGND
5
IN
COM
OUT
6
7
72
C
D
(W901)
IC509
OUT
COM
IN
OUT
COM
IN
CB504
CB507
AMP
(CB511)
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.
DSP
(CB7)
1. C504/C505 on POWER (1) P.C.B.
2. C518 on POWER (1) P.C.B.
E
F
K, A, B, G, E, L models
U, C, V, J models
1
7
4
5
IC505
IC501
G
H
• Semiconductor Location
Ref no. Location Ref no. Location Ref no. Location Ref no. Location Ref no. Location Ref no. Location Ref no. Location
D501
G4
D518
D4
D530
F5
D538
F3
D505
H6
D519
E4
D531
D3
D539
E3
D509
G5
D520
D4
D532
D3
D540
D3
D514
F6
D522
D5
D536
C3
IC501
F6
D516
F5
D529
F4
D537
C3
IC502
G3
K, A, B, G, E, L models
IC506
IC503
5 k-ohms
10 W
I
J
IC503
G3
IC511
B6
Q507
B6
IC505
F6
Q502
D2
IC506
G2
Q503
D2
IC509
C4
Q504
G5
IC510
C5
Q506
C3
AC IN
CB503
CB502

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