Sony STR-DH520 Service Manual ▷ View online
STR-DH520
45
IC400 BD3470KS2 (MAIN BOARD (3/4))
IC3507 TC74VHC541FT (EKJ) (HDMI RE PC BOARD (3/3))
IC3527 TC7WHU04FK (HDMI RE PC BOARD (3/3))
VCC
G2
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
GND
A8
A7
A6
A5
A4
A3
A2
A1
G1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
VCC 1Y
3A 2Y
1A 3Y
2A GND
1
2
3
4
8
7
6
5
INL2
INR2
INL1
INR1
AGND
SBLIN1
SBRIN1
SLIN1
SRIN1
CIN1
SWIN1
FLIN1
FRIN1
AGND
ADCR
ADCL
AGND
AGND
SUB1R
SUB1L
FRIN2
FLIN2
SWIN2
CIN2
AGND
SRIN2
SLIN2
SBRIN2
SBLIN2
RECR1
RECL1
RECR2
RECL2
AGND
RECR3
RECL3
RECR4
RECL4
AGND
AGND
INR3
INL3
INR4
INL4
INR5
INL5
INR6
INL6
INR7
INL7
INR8
INL8
INR9
INL9
INR10
INL10
INL11
INR11
INL12
INR12
HPFN
LPF01
LPF02
LPFN2
AGND
LPFN1
SWVOL
VCC
DGND
VEE
OUTFR
OUTFL
OUTSW
OUTC
OUTSR
OUTSL
OUTSBL
OUTSBR
MainL
MainR
Mode
selector
Mode
selector
Mode
selector
Logic
FR
Volume
FL
Volume
SW
Volume
C
Volume
SR
Volume
SL
Volume
SBR
Volume
SBL
Volume
Mode
selector
Sub2
Rec
Sub2
Main
Sub1
ADC
Main
Sub1
CL
DA
EQ
Multi1
Multi2
SubR1
SubR2
SubL1
SubL2
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
64
63
65
67
66
68
70
69
71
73
72
74
76
75
77
79
80
78
39
40
37
38
36
34
35
33
31
32
30
28
29
27
25
26
24
22
21
23
STR-DH520
46
IC210 NJM2595M-TE2 (STANDBY-A VIDEO MT PC BOARD)
IC220 NJM2586AM (STANDBY-A VIDEO MT PC BOARD)
IC500 NJM4565M-D (MAIN BOARD (3/4))
A
B
A OUTPUT
A -INPUT
A +INPUT
V-
V+
B OUTPUT
B -INPUT
B +INPUT
1
2
3
4
5
6
7
8
1
VOUT1
2
SW5
8
V-
3
VIN5
4
SW3
5
VIN4
6
SW4
7
VIN3
S3
S1
S2
S4
S6
S7
S5
16 V+
SW2
VIN2
VIN2
VOUT2
SW1
VIN1
GND
VOUT3
VIN1
GND
VOUT3
6dB
AMP
75ȍ
DRIVER
10
9
15
14
13
12
11
13
12
11
-V
+V
6dB
AMP
75ȍ
DRIVER
CONT1
CONT2
6dB
AMP
75ȍ
DRIVER
CONT1
6dB
AMP
75ȍ
DRIVER
CONT1
CONT2
CONT2
1
2
3
4
5
6
8
9
10
11
12
24
23
22
21
20
19
17
16
15
14
13
BIAS
BIAS
BIAS
BIAS
BIAS
BIAS
BIAS
BIAS
BIAS
CH1 IN1
SW1
CH1 IN2
SW2
CH1 IN3
GND
CH2 IN1
GND
CH2 IN2
GND
CH2 IN3
CH1 OUT
PS
CH2 OUT
V+2
CH3 OUT
GND
7
18
V+1
V-2
CH3 IN1
V-1
CH3 IN2
GND
CH3 IN3
STR-DH520
47
Pin No.
Pin Name
I/O
Description
1
SBL_SBR_RY
O
Surround back speaker relay driver control signal output
2
BRIDGEABLE_RY
O
Bridgeable relay control signal output
3
HP_RY
O
Headphone relay driver control signal output
4
HP_DET
I
Headphone detection signal input
5 NO_USED
-
Not
Used
6
E2P_SDA
I/O
Two-way data bus with the EEPROM
7
E2P_SCL
O
Serial data transfer clock signal output to the EEPROM
8
TUNER_SD
I
FM stereo detection signal input from the tuner (FM/AM)
9
TUNER_MOSI
O
Serial data output to the tuner (FM/AM)
10
TUNER_CLK
O
Serial data transfer clock signal output to the tuner (FM/AM)
11
TUN_RDS_CLK
I
RDS serial data transfer clock signal input from the tuner (FM/AM) (AEP and UK models only)
12
NO_USED
-
Not Used
13
NO_USED
-
Not Used
14
NO_USED
-
Not Used
15
NO_USED
-
Not Used
16
NO_USED
-
Not Used
17
NO_USED
-
Not Used
18
NO_USED
-
Not Used
19
NO_USED
-
Not Used
20
NO_USED
-
Not Used
21
TUNER_LAT
O
Latch signal output from tuner
22
TUNER_RDS_DATA
I
RDS serial data input from the tuner (FM/AM) (AEP and UK models only)
23
TUNER_MISO
I
Serial data input from the tuner (FM/AM)
24
DESTINATION
I
Destination detection input
25
MODEL
I
Model setting terminal
26
TEMP_SENSOR_1
I
Thermal sensor 1 signal input
27
TEMP_SENSOR_2
I
Thermal sensor 2 signal input
28
RECTIFIER_TEMP
-
Not Used
29
FL_LAT
O
Latch signal output for FL DISPLAY DRIVER IC
30
FL_DATA
O
Serial data output for FL DISPLAY DRIVER IC
31
FL_CLK
O
Clock signal output for FL DISPLAY DRIVER IC
32
NO_USED
-
Not Used
33
NO_USED
-
Not Used
34
LIMITER
I
Limiter signal input
35
NO_USED
-
Not Used
36
AD_KEY1
I
Key signal input (A/D port)
37
AD_KEY2
I
Key signal input (A/D port)
38
TONE_JOG
I
Tone encoder signal input
39
INPUT_JOG
I
INPUT SELECTOR encoder signal input
40
VOLUME_JOG
I
Master volume encoder signal input
41
MIC_MUTE
O
Microphone muting on/off control signal output terminal “H”: muting on
42
HDMI_RST
O
System reset signal output for HDMI IC
43
HDMI_CECOUT
O
CEC signal output
44
NO_USED
-
Not Used
45
POWER_KEY
I
Power key detection signal input
46
SIRCS_IN
I
SIRCS signal input
47
HDMI_CECIN
I
CEC signal input
48
HDMI_RXD
I
UART data input from HDMI IC
49
HDMI_TXD
O
UART data output for HDMI IC
50
NO_USED
-
Not Used
51
NO_USED
-
Not Used
52
NO_USED
-
Not Used
53
NO_USED
-
Not Used
54
NO_USED
-
Not Used
• IC Pin Function Descriptions
DIGITAL BOARD (2/4) IC2105 MB90F058PF-G-JNE1 (SYSTEM CONTROL)
STR-DH520
48
Pin No.
Pin Name
I/O
Description
55
DSP_MISO
I
Serial data input from DSP EX3 IC
56
DSP_MOSI
O
Serial data output for DSP EX3 IC
57
DSP_SPICLK
O
Serial data transfer clock signal output for DSP EX3 IC
58
HDMI_CNVSS
O
For SPDIF update for HDMI MICOM
59
SI
I
Serial data input terminal (use for Firmware Flash Program)
60
SO
O
Serial data output terminal (use for Firmware Flash Program)
61
FLASH_CLK
O
Serial clock output terminal (use for Firmware Flash Program)
62
UART_SEL
O
DSP UART Selector output for SPDIF update
63
DSP_SPICS
O
Chip select signal ouput for DSP
64
DSP_SFLASH_HOLD
O
Hold signal output to the serial fl ash
65
NO_USED
-
Not Used
66
NO_USED
-
Not Used
67
DSP_RST
O
Sistem reset signal output for DSP, “L” reset
68
DSP_INT
I
Interrupt status signal input from DSP
69
DSP_SEL_MULTI
O
SPDIF / IIS signal selector output
70
DSP_NPCM
I
SPDIF / IIS NPCM signal input from digital audio interface receiver / HDMI receiver
71
DSP_ERROR
I
SPDIF / IIS ERROR signal input from digital audio interface receiver / HDMI receiver
72
NO_USED
-
Not Used
73
NO_USED
-
Not Used
74
DIR_SIGNAL
I
Audio serial data input from the digital audio interface receiver
75
DIR_RST
O
Reset signal output to the digital audio interface receiver, “L” reset
76
DIR_CE
O
Chip enable signal output to the digital audio interface receiver
77
DIR_XSTATE
I
Clock transition signal input from digital audio interface receiver
78
DIR_MISO
I
Serial data input from DIR
79
FUSE_DET
I
Fuse open detect signal input
80
AC_CUT
I
AC off detection signal input
81
COMP_DET
I
Component video signal detect
82
V_COMP_SW2
O
Component video output signal switch
83
V_MUTE
O
Video muting control signal output to the video amplifi er
84
V_SEL_SW1
O
Composite video output signal switch
85
V_SEL_SW2
O
Composite video output signal switch
86
POWER_RY
O
Power relay control signal output
87
PROTECT
I
Protect detection signal input terminal
88
COM_CLK
O
Data clock signal output for DIR IC and 8CH DAC IC
89
COM_DATA
O
Data output for DIR IC and 8 CH DAC IC
90
NO_USED
-
Not Used
91
NO_USED
-
Not Used
92
NO_USED
-
Not Used
93
NO_USED
-
Not Used
94
DAC_LATCH
O
Serial data latch pulse signal output to the D/A converter
95
DAC_MUTE
O
Mute signal output for 8Ch DAC IC
96
EVOL_CLK
O
Serial data transfer clock signal output to the electrical volume
97
EVOL_DATA
O
Serial data output to electrical volume
98
C/SL_SR_RY
O
Center/surround speaker relay driver control signal output
99
FRONT_SPK_RY
O
Front speaker relay driver control signal output
100
PREOUT_SW_RY
O
Subwoofer relay driver control signal output
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