Yamaha YAS-408 Service Manual page 33

A B
1
MAIN 6/6
YAS-CU408/YMS-4080/ATS-CU4080 POWER SECTION
2
R654 27K1%
IC600
DIO2399BSC6
R602 18K1%
1 REF 6
OUT
2 5
GND IN-
3 4
V+ IN+
C605 C606
0.1uF50V 0.1uF50V
3
FB605
FB604
600R
600R
CN600
VH-2 R603 0.01R1%
23V
23V 2
G7
C600 C602
GND 1 1nF 0.1uF50V
C601 C603
1nF 10nF50V
4
5
6
7
C D
YAS-CU4080/YMS-4080/ATS-CU4080
Option: YMS-4080
YMS-4080 ONLY!
Q601 Q603
2N3904 2N3904
R605 R663 R606 R667
100K 10K 100K 10K
Q600 Q602
ZD600 2N3904 ZD601 2N3904
R661 R665
18V 12V
10K R664 10K R668
47K
47K
R662 R666
47K 47K
SW pre-out mute
CSRA67175_1.05V
CSRA67175_3.3V
E F
R601
1K
R607
100K
C611 0.1uF25V
IC601 SNR4030-220M
MP1584EN_C319
L600
22uH1A
GVDD
FB616
F600 8 BS SW 1
600R
0468001NR
7 VIN EN 2
1A/63V
RT COMP
6 3
GND FB
5 4
C614
C612
Fsw=1209KHz 150pF 330pF
DC/DC 12V
R609 R612 R615
147K 20R 15K1%
FB602
D606
ES1B 600R
R623
100K
C624 0.1uF25V
IC602
SNRH1005R-150M
MP1584EN_C319
L601
MGLB3216M161T5R0-LF 15uH3.6A
FB601
8 BS SW 1
160R
VIN
7 EN 2
6 RT COMP 3
5 GND FB 4
Fsw=900KHz
C627
DC/DC 5V C625
150pF 330pF
R624 R627 R630
100K 20R 40.2K1%
D605 IC603
FB615 R637
BL9198-33BAPRN
600R RB160
10R
1 5
VIN VOUT
R638 2
GND
100K
MCU_3.3V
3 4
EN NC
IC604
DIO6015CST5
FB613 L602 FB609
600R 2.2uH 160R
4 3
VIN LX
C645 47pF MGLB3216M161T5R0-LF
R639
1K R642 75K1%
1 5
EN FB
Fsw=1.5MHz
FB610 600R
IC605
DIO6015CST5 600R
FB611
FB614 L603
600R 2.2uH
4 3 FB612 600R
VIN LX
C651 22pF
R643
1K R647 453K1%
1 5
EN FB
R644
100K
★ Components having special characteristics are marked ⚠ and must be replaced
with parts having specifications equal to those originally installed.
★ Schematic diagram is subject to change without notice.
G H
Q604
YAS-CU408/ATS-CU4080
NC
FB606
NC
D600
R617
NC NC
2.4G_5V
R619
R618 NC
NC
R620
NC
Q605
C620
2N3904 R621
NC
NC
Option:
YAS-CU408&ATS-CU4080 ONLY!
HDMI_5V
MGLB3216M161T5R0-LF
Q606
FB600
FB603
NCE2305
160R 160R
TP12
+5V
R632 D601
100K
1SS355
R634
R633 100R
10K
R635
C633
10K
1nF
Q607
C634
2N3904 R636
1nF
10K
R653 0R
OPAMP_5V
Q608
FB607 NCE2305
600R
D602
R648
100K 1SS355
R650
100R
R649
10K
R651
10K
Q609
C654 M2 M1
2N3904 R652
1nF
10K YMS-4080
Option:
YMS-4080 ONLY!
● ⚠印のある部品は、安全性確保部品を示しています。部品の交換が必要な場合、
パーツリストに記載されている部品を使用してください。
● 本回路図は標準回路図です。改良のため予告なく変更することがあります。
I J
YAS-408/YMS-4080/ATS-4080
POWER_ON/OFF [1/6]
PRI [1/6]
AC_DET [1/6]
HDMI_ON/OFF [1/6]
SUBPRE_EN [1/6]
PVDD_23V [5/6]
[5/6]
GVDD
DDFA_3V3 [5/6]
WIFI_VIN [4/6]
[4/6]
+5V
LED_PWR [1/6]
MCU_3V3 [1/6]
AC_DET1 [2/6]
2.4G_5V [2/6]
HDMI_5V [2/6,3/6]
MAPX_1.05V [2/6]
VCC3.3V [2/6]
MAPX_3.3V [2/6]
5V_A2 [2/6]
[2/6]
SUB_5V
33