Schematic Diagrams - Yamaha BD-S677 Service Manual

A B

■ SCHEMATIC DIAGRAMS

1
FOR INFORMATION ONLY (COMPONENT PARTS NOT AVAILABLE)
MAIN 1/9
to Power supply unit_CN1
2
J1
NW_STB
TP72
8
PD_ON
TP63 7
TP71 6 5V_STBY
5
TP66 4 VCC_PS
3
TP31 2
TP13 1 +12V_PS
8P,2.5mm
3
3.3V_STBY 3.3V_STBY
R23
10K
C31
0.1uF/16V/X7R
POR 3
RESET#
U6
G691L293T73U
4
3.3V_STBY
R184
10K
OPWRSB
R111 0
R183 R114 1K/NC
10K_NC
5
3.3V
R30
2K
6
NETWORK_STBY 1
R100 1K
R33
10K_NC
NW_STB R113 0 NETWORK_STBY
R122 0_NC GPIO3
5/9
GPIO3
R123 10K_NC
3.3V
7
C D
POWER CONNECTOR
VCC_PS
C6 C29
VCC_PS
22uF/10V/X5R 0.1uF/50V/X7R
+12V_PS
5V_STBY
C188 C139 C154
10uF/16V/X5R 0.1uF/50V/X7R 0.1uF/50V/X7R
VCC_PS
RESET CIRCUIT
MTK confirm no need diode
RESET#
C214
0.1uF/16V/X7R
Close to IC PIN
For ESD
POWER CONTROL
5V_STBY
CIRCUIT
R115
100K/NC
PD_ON
1 Q12
2N3904/NC
NETWORK STANDBY CTRL
+12V
+12V_PS
3 2
Q203
DMP3098L
R40
protect MOS
20K C215
0.1uF/16V/X7R
R104 10K
Q4
2N3904 M1
VCC
VCC_PS
3 2
AO3401
C216 Q204
0.1uF/16V/X7R
protect MOS
M5
+12V_PS +12V VCC_PS VCC MARK1
R102 0_NC R103 0_NC
E F
U4
C1 4.7uF/16V/X5R 22 1
V3V ROSC
24
PGOOD
C2 10uF/16V/X5R 21
V7V
8 7 C7
VIN1 BST1
C30 9 LX1
LX1
22uF/10V/X5R 10
LX1
R3
10K
5
RLIM1
6 2 1.5VFB
EN1 FB1
4 3 1.5COMP2
SS1 COMP1
R5 C10 R6
20K 150K C11
0.0047uF/50V/X7R
0.0047uF/50V/X7R
13 14 C15
VIN2 BST2
11
LX2
C14 12
LX2
22uF/10V/X5R R9
10K
16
RLIM2
15 19
EN2 FB2
17 18
SS2 COMP2
R13 C20
20K R14 C21
100K 0.0047uF/50V/X7R
0.0047uF/50V/X7R
25 USB_EN2
USB_EN
26 USB_OC2#
USB_nILIM
20 27
LOW_P USB_VIN
28
USB_VO
R19
29 23
10K
GND_PAD rUSB
TPS65252
POWER 5V --> 3.3V
VCC_PS
C9 U5
1uF/16V/X5R
VCC_PS 4 5
VPP NC
3 6
VIN VO 3.3V
2 7
C8 R24 10K
VEN ADJ
22uF/10V/X5R R26
R25 10K 1 8 31.6K_1%
POK GND
9 C32
TP
22uF/6.3V/X5R
G966A-25ADJF11U
C213
0.1uF/16V/X7R
R28
10K_1%
M2 M3 M4
SCREW_1MM/NC SCREW_1MM/NC SCREW_1MM/NC SCREW_1MM/NC
M
J504
M6 M7 M8 HA4 HA5 DING1 DING2 DING3 DING4
MARK1 MARK1 MARK1 S/N LOGO DING DING DING DING
G H
NETWORK_STBY
USB_OC2#
USB_EN2
OPWRSB
RESET#
POWER 5V-->1.5V
5V-->1.2V
R1 360K_1%
R2 10K
3.3V
0.047uF/16V/Y5V
L1 L1
4.7uH/LQH6PPN4R7M43
R4 C3 C27 C4 C26
39K_1% NC 22uF/6.3V/X5R 22uF/6.3V/X5R 22uF/6.3V/X5R
R7 R8
C12 44.2K_1%
20K
100pF/50V/NPO
C13
0.0047uF/50V/X7R
0.047uF/16V/Y5V
LX2 L2
4.7uH/LQH6PPN4R7M43
C18 C24 C19 C25
R10 NC 22uF/6.3V/X5R 22uF/6.3V/X5R 22uF/6.3V/X5R
39K_1%
1.2VFB
1.2COMP2
R16
3.3V
R15 78.7K_1%
C22
20K
100pF/50V/NPO
R17 R18
10K 10K C23
0.0047uF/50V/X7R
FB320
BLM18P_NC BEAD/SMD/0603
VCC_PS
FB321
BLM18P BEAD/SMD/0603
USB_VCC0
C28
VCC
10uF/16V/X5R
R20
120K_1%
POWER 5V_STB --> 3.3V_STB
R32 470_NC
3.3V_STBY
5V_STBY U9
1 5
VIN VOUT
C5
2.2uF/10V/X5R 2
GND
C0603/SMD C97
1uF/6.3V
3 4 C0603/SMD
EN NC
R31 G9091-330T11U
0 SOT-25/SMD
BRACKET
★ 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.
I J
BD-S677
NETWORK_STBY 5/9, 8/9, 9/9
USB_OC2# 5/9
USB_EN2 5/9
6/9
OPWRSB
RESET# 6/9
1.5V
C149
0.1uF/10V/X5R
1.2V
C49
0.1uF/10V/X5R
31