STR-DH550/DH750
STR-DH550/DH750
30
30
5-15. SCHEMATIC DIAGRAM – MAIN Board (7/7) –
• See page 21 for Waveforms. • See page 43 for IC Block Diagrams. • See page 50 for IC Pin Function Descriptions.
1
A
B
C
D
E
F
G
H
I
J
K
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
MAIN BOARD (7/7)
5
1
5
0.4 3.1
5
3.1
6
3.1
3.3 3.3 3.3 3.3 3.3 3.3
1.6
0
3.3
3.1
3.1
1.6
0
0
0
3.3
1.4
1.4
3.3 3.3
3.3
0
0
0
3.3
0
3.3
3.3
0
0.1
0.1
0
0
3.3
3.3
0.1
0
0
3.3
3.3
1.2
3.3
0
3.3
3.3
3.3
1.6
0
0
3.3
3.3
0
0
1.4
1.5
3.3
0
3.3
0
3.3 3.3
0 0.2
0
0
3.3
0
0
0 3.3 3.3
0
0
0
3.3
3.3
1
3.3
3.3
3.3
3.3
3.3
0.1
3.3
0
0
3.3
3.3
0
3.3
3.3
3.3
0.1
0
3.3
3.3
0
0.2
3.3
1.7
3.3
3.3
0
3.3
S
USB-SPDIF
HDMIOUT-5VPWR
PROG-VU-RST
HDMI-SCL
HDMI-SDA
SPARTA-INT
PROG-MU-MD0
MU-RST
SPARTA-RST
VCOM-SDA
NFC-RF-DET
NFC-SPICLK
MU-UART-IN
PROG-MUTX
PROG-MURX
MHL-PCONT
UPDATE-LED
HDMI-NLPCM
MHL-OVC
PROG-VU-MD0
NFC-SW
NFC-IRQ
NFC-DATA
NFC-SEL
BT_RST
BT_RST
BT_VURX
BT_VUTX
VURTSOUT_BTCTS
VUCTSIN_BTRTS
VU_PCONT
C2915
2.2u
C2906
68p
C2907
68p
C2916
0.1u
C2911
0.1u
R2908
100
R2906
330
R2904
330
C2903
10u
C2634
0.1u
C2912
10u
C2909
0.001u
C2910
0.1u
C2914
2.2u
C2614
4.7u
C2602
1u
C2607
1u
C2908 0.1u
C2913
0.1u
C2902
0.1u
C2905
0.1u
C2900
9p
C2901
9p
C2619
0.001u
C2620
0.1u
C2624
0.1u
C2621
4.7u
C2625
4.7u
R2934
10k
R2652
100
R2651
100
R2646
100
R2645
100
R2640
100
R2639
100
R2638
2.2k
C2615
0.001u
R2644
47
R2642
47
R2654
1k
R2655
1k
C2609
4.7u
C2610
0.1u
C2611
0.1u
C2612
0.1u
R2625
100k
R2626
100k
R2630
100
R2615
100
R2614
100
R2616
100
C2617
0.001u
C2616
0.1u
R2637
10k
C2606
0.1u
C2623
0.1u
C2618
0.001u
C2613
0.1u
C2631
0.01u
R2668
10k
C2635
47p
C2904
220u
10V
CL2627
CL2621
CL2625
CL2620
CL2624
CL2623
CL2626
CL2628
CL2622
CN2601
7P
1
2
3
4
SCK
5
6
MD0
RESET
Prog_VUTX
Prog_VURX
GND
7
3.3V
D2603
CES521
D2601
CES521
D2602
CES521
HDMI-MUTE
HDMI-MB-MUTE
D2604
CES521
D2600
CES521
3.3V
STBY3.3V
D-GND
FB2602
0uH
FB2601
0uH
FB2900
0uH
FB2901
0uH
JL2629
JL2631
JL2632
JL2633
JL2604
JL2905
JL2906
JL2607
JL2628
JL2901
JL2904
JL2902
JL2903
JL2900
JL2600
JL2605
JL2601
JL2907
JL2603
JL2634
JL2635
JL2606
JL2602
JL2630
Q2600
PMG85XP
VOLTAGE
CONTROL
IC2900
BU94502AMUV
1
2
3
4
5
6
7
8
9
10
30
29
28
27
26
25
24
23
22
21
DVSSIO_1
RESETX
TMODE
KEY_COL1/IRPTO
KEY_COL2/SEARCH
KEY_COL3/MCHNG
KEY_ROW1/BUSY
KEY_ROW2/SCL
KEY_ROW3/SDA
DVDD_M
AMUTE
DVDDIO_29
LED_REPEAT/MCLK
LED_PUSB/DATA
LED_PSD/BCK
LED_PLAY/LRCK/SPDIF
LED_ERROR/CLK24MI
REXTI
USB_DP
USB_DM
11
DVSSIO_11
12
DVDDIO_12
13
TEST1
14
XIN_PLL
15
XOUT_PLL
16
SEL_APLAY/TEST2
17
SEL_COD/TEST3
18
SEL_SLAVE
19
AVDDC
20
AVSSC
31
DAVSS
32
RDACO
33
VCDACO
34
LDACO
35
DAVDD
36
SD_CON
37
SD_DO
38
SD_CLK
39
SD_DI
40
SD_CS
41
IC2602
MB9AF156NPMC-G-JNK1E2
1
VCC
2
NC
3
NC
4
NC
5
MHL-OVC
28
PROG_MURX
29
NC
30
MHL-PCONT
71
Prog_VU_SCK
72
Prog_VUTX
73
Prog_VURX
74
NC
75
VSS
96
USB_MCHNG
97
VCC
98
USB_PCONT
99
USB_OVC
100
VSS
26
VCC
27
PROG_MUTX
6
TEST_SDA
7
TEST_SCL
8
NC
9
APPLE_RST
10
APPLE_SCL
11
APPLE_SDA
12
UPDATE-LED
31
HDMIOUT_5VPWR
32
HDMI_PCONT
33
C
34
VSS
35
VCC
36
SPARTA_RST
37
HDMI_MUTE
66
BT_VURX
67
BT_RST
68
VURTSOUT_BTCTS
69
VUCTSIN_BTRTS
70
NC
64
BT-PCONT
65
BT_VUTX
91
USB_RESET
92
USB_SEARCH
93
USB_IRPTO
94
USB_SCL
95
USB_SDA
89
NFC-SPICLK
90
USB_BUSY
13
HDMI-NLPCM
14
NC
15
NC
16
NC
17
NC
18
TEST-1
19
TEST-2
20
TEST-3
21
TEST-4
22
TEST-5
23
TEST-6
24
TEST-7
25
VSS
38
INITX
39
SPARTA_INT
40
HDMI_SDA
41
HDMI_SCL
42
PROG_MU_MD0
43
MU_RST
44
MU_UART_IN
45
VCOM_SDA (OUT)
46
MD1
47
MD0
48
PE2/X0
49
PE3/X1
50
VSS
52
NFC_SW
53
NFC_IRQ
54
NFC_DATA
55
NC
56
NC
57
NFC_SEL
58
NC
59
NC
60
AVCC
61
AVRH
62
AVSS
63
NC
51
VCC
77
TRXTS (No Use)
78
TCK
79
TDI
80
TMS
81
TDO
82
NC
83
NC
84
NC
85
NC
86
NC
87
NC
88
NFC-RFDET
76
VCC
Q2601
LTC014EUBFS8TL
RESET SW
Q2602
LTC014EUBFS8TL
RESET SW
R2918
10k
RB2802
100
RB2803
100
RB2800
100
R2929
100
R2932
3.3k
R2931
3.3k
JC2670
0
R2933
10k
R2672
10k
R2673
10k
R2656
2.2k
R2671
10k
C2622
0.1u
R2670
10k
R2617
100
R2613
100
R2636
10k
100
R2619
0
R2919
22
R2610
22
R2609
R2601
10k
10k
R2913
1.5k
R2900
10k
R2653
12k
R2916
10k
R2911
470
R2902
10k
R2666
R2634
100
100
R2623
10k
R2631
10k
R2629
10k
R2624
22
R2612
100
R2622
100
R2621
100
R2620
12k
R2907
68k
R2914
2.2k
R2665
2.2k
R2664
47
R2661
47
R2660
100
R2657
0.1u
C2627
0.1u
C2628
100
R2659
100
R2658
1k
R2633
10k
R2912
1M
R2901
4.7k
R2915
R2611
100
1k
R2632
10
R2667
10
R2669
100
R2607
100
R2606
330
R2605
330
R2604
BT-MUTE
BT_RST
VURTSOUT_BTCTS
VUCTSIN_BTRTS
BT_VURX
BT_VUTX
C2604
0.1u
C2605
4.7u
CL2604
CL2603
CL2600
CL2608
CL2607
CL2606
CL2611
CL2601
CL2610
CL2609
CL2602
CL2605
CN2600
14P
1
GND
2
RCH_N
3
RCH_P
4
LCH_P
5
LCH_N
6
GND
7
MUTE
8
BTTX
9
BTRX
10
BTRTS
11
BTCTS
12
3.3V
13
RESET
14
GND
RCH-N
RCH-P
LCH-P
LCH-N
FB2600
0uH
R2603
100
S
1u
C2922
C2920
1u
C2921
0.1u
CL2904
Q2604
PMG85XP
3.3V VOLTAGE
CONTROL
R2927
10k
10k
R2910
10k
R2647
IC2601
BU4229F-TR
1
GND
2
VDD
3
CT
4
VOUT
IC2603
MFI337S3959
1
GND
2
APPLE_SDA
3
NC
4
NC
5
NC
6
APPLE_SCL
7
APPLE_RST
8
VCC
9
GND
IC2901
BD00HC5WEFJ-E2
1
VO
2
FB
3
GND
4
NC_4
EN
5
NC_6
6
NC_7
7
VCC
8
9
D2900
D2901
X2600
4MHz
X2900
16.9344MHz
C2919
10u
CL2900
CL2903
CL2901
CL2902
CN2900
5P
1
GND
2
D+
3
D-
4
VBUS
5
GND
+6V
10k
R2926
150k
R2920
560k
R2923
10k
R2924
10k
R2925
D2902
CES521
100k
R2921
C2917
0.1u
C2918
10u
1k
R2922
IC2902
TPS2553DBVR
1
IN
2
GND
3
EN
FAULT
4
ILIM
5
OUT
6
HDMI CONTROLLER
IC2602
DECODER
IC2900
POWER CONTROL
IC2901
OVER VOLTAGE
CONTROL
IC2902
APPLE AUTHENTICATION
COPROCESSOR
IC2603
RESET
IC2601
BT MODULE
38
>018S
MAIN BOARD
(4/7), (5/7)
(Page 27), (Page 28)
>012S
MAIN BOARD (3/7)
(Page 26)
>022S
FRONT JACK
BOARD
CN104
(Page 39)
PROGRAMMING JIG
(HDMI KSV)
DH750
DH750
DH550
DH750
DH750
8
9
Note:
IC2900 on the MAIN board cannot exchange with single.
When this part on the MAIN board is damaged, exchange
the entire mounted board.
Ver. 1.1
