Yamaha YAS-408 Service Manual page 30

A B
YAS-408/YMS-4080/ATS-4080
1
MAIN 3/6
YAS-CU408/YMS-4080/ATS-CU4080 HDMI SECTION
2
3
4
CN300
1
RX2+
RX21P
RX2_SHLD 2
RX21M
3
RX2-
RX1+ 4
5 RX11P
RX1_SHLD
RX11M
RX1- 6
7
RX0+
RX01P
8
RX0_SHLD RX01M
9
RX0-
10
RX RXC+
11 RXC1P
RXC_SHLD
HDMI IN RXC1M
12
RXC-
13
CEC
14
UTIL/HEAC+ RXSCL1
15
SCL
16 RXSDA1
SDA
17
GND
18
+5V
HPD/HEAC- 19
20
GND
GND 21
22
GND
GND 23
5
R301
330K
6
7
30
C D
RP300
100R*4
C308 56pF
5 4
6 3
7 2
1
8
1 8
2 7
3 6
4 5
220R*4
RP301
10K
R312 0xC8/ 0xCA
R313 2.7K1%
C309 4.7uF10V
0.1uF25V
C310
C311 8.2pF XIN
C312 8.2pF R317 200R
CLOSE TO CONNECTOR
27K LBAT54HT1G
R307 0R R310 D303
49.9R1%
R319
R308 0R
R318 5.1R1% R320 49.9R1%
R311
R309 2.7M 0R
R321 NC
D300
C304A NC
PESDR0524P5
1 I1 10
O1
2 I2 9
O2
C305A NC
3 GND 8
GND
4 I3 7
O3
5 I4 6
O4
C306A NC
1 I1 10
O1
2 I2 O2 9
3 GND 8 C307A NC
GND
4 I3 O3 7
5 I4 6
O4
D301 47K R305 10K
R303
PESDR0524P5
1 I1 10 R304 47K
O1
2 I2 9
O2
3 GND 8
GND
4 I3 7
O3
5 I4 6 RX1_HPD
O4
R306
D302 Q300
1K
PESDR0524P5 NCE2305
CN302 CN303
4
1
2
1 3
3 4
2
2
3
4 3
1 1
2
4
Differential impedance=100+/-10ohm
E F
YAS-CU4080/YMS-4080/ATS-CU4080
COMR
R324 22R1% C315 0.1uF25V TX2P
22R1% C316 0.1uF25V TX2M
R325
22R1% C317 0.1uF25V
R328 TX1P
22R1% C318 0.1uF25V
R329 TX1M
22R1% C319 0.1uF25V
R340 TX0P
C313A NC 22R1% C320 0.1uF25V TX0M
R341
C314 1uF25V C321 0.1uF25V
R342 22R1% TXCP
C322 0.1uF25V TXCM
R343 22R1%
R344 10K
TX_PVDD12
R345 10K
R346 1M
R323 10K
1uF25V
C333
X24M
MCU_SCL NC
C323A
MCU_SDA
IC300
EP91A6SX
R371 NC
1 SPDIF MCU_P1[3] 75
1K
2 IIS_SCK 74 R372
VSS
3 IIS_WS MCU_OP 73
4 IIS_SD0 72
MCU_RSTB
5 IIS_SD1 71 C399A 1uF25V
NC
6 IIS_SD2 70
NC
7 IIS_SD3 69
NC
8 VDD 68
NC
9 VSS 67
GPIO1
IICA 10 MCLK 66
GPIO0
11 VDD 65
VSS
12 VSS 64
MCU_P1[1]
13 IIS_SCK_IN 63
MCU_P1[0]
14 IIS_WS_IN 62 R375 2K
MCU_P3[7]
2K
15 IIS_SD_IN 61 R376
MCU_P3[6]
16 VDD 60
MCU_P3[5]
17 VSS 59
MCU_P3[4]
TX_RSEN
18 VDD_PLL MCU_P3[3] 58
19 PLL_XFC_A 57
MCU_P3[2]
R377 NC
20 VDD NC 56
R378
21 VSS 55 INTB 10K
MCU_P3[1]
CEC_IN
22 ARC_VDDE MCU_P4[0]+P3[0] 54
23 MCU_X_IN 53
MCU_P7[1]
24 MCU_X_OUT MCU_P7[0] 52
25 ARC+ 51 R379 560R1%
EXT_RES
R322
39K1%
RX_AVDD33
C335 1uF25V
ARC+
ARC- C336 1uF25V
Pin 40,43,47,50 300R
RX_AVDD12 FB302
C343
100uF6.3V
Pin 31,99 FB303 600R
FB309 VDDE
300R
RX_VDD12 Pin 28
Pin 126 600R
FB304
Pin 18 FB305 600R
Pin 8,11,16,20 120R
FB306
Pin 80,86 300R
TX_AVDD12 FB307
Pin 76 TX_PVDD12 FB308 300R
★ 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
CN304
SHIELDIGN_HDMI
C329A NC
D306
PESDR0524P5
10 O1 1
I1
9 O2 2
I2
C330A NC 8 GND 3
GND
7 O3 I3 4
6 O4 5
I4
C331A NC 10 O1 1
I1
9 O2 I2 2
8 GND 3
GND
7 O3 I3 4
6 O4 5
C332A NC I4
D305
PESDR0524P5
TX_CEC
TX_HEAC+
R355 2K
R356 2K
TX_HEAC-
D304
R357 0R
LBAT54HT1G
R360 0R
R362
NC
Q301
NC Q302
1V32EN
R363 NC
NC
R364 1K
OP HMCU_OP
TXD TXD HMCU_P71
RXD RXD HMCU_P70
G6
R380 100R
R381 0R
R382 0R
R383 1K
IC301
FB300 C347
300R DIO7003LBST5 0.1uF25V
TXA_5V
1 OUT 5
IN
3 FLG
2 GND 4
ENB
FB301
600R
Pin 44
3V3
IC302
LN1152B332MR
R385
3V3 0R 10R
5 1 R386
VOUT VIN
2
VSS
R387 100K
4 3
NC CE
C370
10uF10V
IC303
DIO6012BCST5
L300
2.2uH
D_1V32 3 LX 4
VIN
47pF
C377
R390
100K
R395 150K1% 5 1
FB EN
R388 R389
NC 120K1% Fsw=1.0MHz
IC304
DIO6012BCST5
L301
2.2uH
A_1V32
3 LX 4
VIN
C386 47pF
R394
150K1% 100K
R391 5 1
FB EN
R392 R393
NC 120K1%
● ⚠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
CN301
1 RX2+
2 RX2_SHLD
3 RX2-
4 RX1+
5 RX1_SHLD
6 RX1-
7 RX0+
8 RX0_SHLD
9 RX0-
10 RXC+ OUT
11 RXC_SHLD
TX
12 RXC- HDMI
13 CEC (ARC)
14 UTIL/HEAC+
15 SCL
16 SDA
17 GND
18 +5V
19 HPD/HEAC-
20 GND
21 GND
22 GND
23 GND
CN306
FFC-1MM(NC)
1
2
3
4
HDMI_RST
HDMI_RESET [1/6,2/6]
[1/6,2/6]
HDMI_SDA
[1/6,2/6]
HDMI_SCL
[1/6,2/6]
HDMI_INTB
HDMI_I2S_D4 [2/6]
[2/6]
HDMI_I2S_D3
[2/6]
HDMI_I2S_D2
HDMI_I2S_D1 [2/6]
HDMI_I2S_WS [2/6]
HDMI_I2S_CL [2/6]
[2/6]
HDMI_SPDIF
[2/6,6/6]
HDMI_5V