Sony DAV-HDX275 / DAV-HDX277WC / DAV-HDX279W / DAV-HDX475 / DAVHDX576WF / DAV-HDX675 / HCD-HDX275 / HCD-HDX277WC / HCD-HDX279W / HCD-HDX475 / HCD-HDX576WF / HCD-HDX675 Service Manual ▷ View online
HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675
73
OVER
CURRENT
PROTECT
2
LOGIC
OSC
INTERNAL BIAS
DELAY
DELAY
LATCH
CURRENT
MIRROR
OVER
CURRENT
PROTECT
2
OVER
CURRENT
PROTECT
1
FEED
BACK
BACK
INH
2
INH
1
BOTTOM
SKIP
LOGIC
OCP/INH
1
S/GND
2
DRAIN
3
VCC
4
FB/OCP
5
UNDER VOLTAGE
LOCK OUT
OVER LOAD
PROTECT
THERMAL
SHUT DOWN
OVER VOLTAGE
PROTECT
SWITCHING
REGULATOR
BLOCK
1
Z/C
ZERO
CURRENT
DETECT
ONDEAD
TIMER
STANDBY
CIRCUIT
2
FB
+
−
ON
TIMER
S
R
Q
SOFT-DRIVE
CIRCUIT
BURST MODE
OVERCURRENT
THRESHOLD
COMPARATOR
OVERCURRENT
PROTECT
THRESHOLD
COMPARATOR
5
EMITTER/OCL
OVERVOLTAGE
PROTECT
COMPARATOR
THERMAL
SHUTDOWN
CIRCUIT
LATCH CIRCUIT
RESET
COMPARATOR
S
R
Q
UNDERVOLTAGE
LOCKOUT
COMPARATOR
START-UP CIRCUIT
UNDERVOLTAGE
LOCKOUT
COMPARATOR
START-UP
CIRCUIT
4
VCC
3
GND
RESTART
TIMER
7
VIN
9
COLLECT
OR
IC921 MR4020-7103
– POWER Board –
IC901 STR-F6138-LF1352
IC901 STR-F6168-LF1352
IC901 STR-F6168-LF1352
HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675
74
1
VC
TSD
2
VIN
3
GND
4
VOUT
5
ADJ
+
–
REF
IC941 SI-3010KM-TLS
HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675
75
• IC Pin Function Description
MAIN BOARD IC501 R5F3640DDFAR (SYSTEM CONTROLLER)
MAIN BOARD IC501 R5F3640DDFAR (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
DAMP_SCD
O
Serial data output to the stream processor
2
DAMP_SHIFT
O
Serial data transfer clock signal output to the stream processor
3
CEC_RX_IN
I
CEC serial data input from the HDMI OUT connector
4
SIRCS_IN
I
SIRCS signal input from the remote control receiver
5
NO USE
O
Not used
6
NO USE
O
Not used
7
NO USE
O
Not used
8
BYTE
I
External data bus width selection signal input terminal Fixed at "L" in this set Not used
9
CNVSS
I
Processor mode switch input terminal (for test) Fixed at "L" in this set
10, 11
EN_A, EN_B
I
Jog dial pulse input from the rotary encoder (for VOLUME)
12
RESET
I
System reset signal input from the reset signal generator
"L": reset For several hundreds msec. after the power supply rises, "L" is input, then it
change to "H"
"L": reset For several hundreds msec. after the power supply rises, "L" is input, then it
change to "H"
13
XOUT
O
Main system clock output terminal (5 MHz)
14
VSS
-
Ground terminal
15
XIN
I
Main system clock input terminal (5 MHz)
16
VCC
-
Power supply terminal (+3.3V)
17
NMI
I
Non-maskable interrupt input terminal Fixed at "H" in this set Not used
18
NO USE
O
Not used
19
A.CAL_OUT_LEVEL
I
Output level detect terminal for the auto calibration
20
AC_CUT
I
AC cut detection signal input terminal "L": AC cut on
21
FL_CLK/LED_CLK
O
Serial data transfer clock signal output to the LED driver and fl uorescent indicator tube driver
22
CEC_TX_OUT
O
CEC serial data output to the HDMI OUT connector
23
FL-STB
O
Fluorescent indicator tube driver chip select signal output to the fl uorescent indicator tube
driver
driver
24
FL_D_OUT/LED_DATA
O
Serial data output to the LED driver and fl uorescent indicator tube driver
25
S-AIR_SRC_MUTE
O
Not used
26
MIC_GAIN
O
MIC gain control signal output terminal
27
NO USE
O
Not used
28
DC_CONT
O
Muting on/off control signal output terminal
29
DMPORT_RX_IN
I
Serial data input from the DMPORT connector
30
DMPORT_TX_OUT
O
Serial data output to the DMPORT connector
31
DVD_SID
O
Serial data output to the servo DSP
32
DVD_SOD
I
Serial data input from the servo DSP
33
DVD_SCO
I
Serial data transfer clock signal input from the servo DSP
34
DVD_XIFBUSY
O
Busy signal output to the servo DSP
35, 36
NO_USE
O
Not used
37
DVD XIFCS
I
Chip select signal input from the servo DSP
38
MTK_RST
O
Reset signal output to the servo DSP and fl ash memory "L": reset
39 to 41
P_CONT1 to P_CONT3
O
Power on/off control signal output terminal "H": power on
42
DRIVE_RST (EN)
O
Reset signal output to the digital power amplifi er "L": reset
43
DRIVE_OCP(DIAG)/
POWER_DET
I
Shut down state input from the digital power amplifi er "L": shut down
44, 45
OVERFLOW1,
OVERFLOW2
I
Over fl ow status input from the stream processor
46
CE
I
Flash write CE Not used (Fixed to at "H" (E3.3V))
47
EEPROM_SDA/
I2C_DATA
I/O
I2C Two-way data bus with the EEPROM
48
EEPROM_SCL/
I2C_CLK
I/O
I2C data transfer clock signal input/output with the EEPROM
49
DAMP_LATCH3
O
Serial data latch pulse signal output to the stream processor
50
DAMP_INIT
O
Reset signal output to the stream processor "L": reset
51
DAMP_SOFT_MUTE
O
Soft muting on/off control signal output to the stream processor "L": muting on
52
M_ST
O
Audio selection signal output to the audio selector
53
HP_MUTE
O
Muting on/off control signal output terminal
54
S-AIR_ADC_SEL
O
Selection signal output to the data selector or EZW-T100
HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675
76
Pin No.
Pin Name
I/O
Description
55
NO_USE
O
Not used
56
DAMP_LATCH2
O
Serial data latch pulse signal output to the stream processor
(HCD-HDX275/HDX277WC/HDX475/HDX675)
(HCD-HDX275/HDX277WC/HDX475/HDX675)
57
DC_DET
I
DC offset detection signal input terminal
58
S-AIR_RST(SRC RST)
O
Reset signal output to the ASYNC sample rate converter and EZW-RT10 or EZW-T100
"L": reset
"L": reset
59
NO USE
O
Not used
60
NO USE
O
Not used
61
NO USE
O
Not used
62
VCC
-
Power supply terminal (+3.3V)
63
HDMI_PCONT
O
Power on/off control signal output terminal "H": power on
64
VSS
-
Ground terminal
65
DAMP_LATCH1
O
Serial data latch pulse signal output to the stream processor
66
(MIC/A.CAL_SW)/
(HP_SW and
MIC2_SW)/S-AIR_DET
I
Connect detection signal input from the J100, J101 and EZW-RT10 or EZW-T100
67
S-AIR_GPIO_2
I
Interrupt signal input from the EZW-RT10 or EZW-T100
68
TUNED
I
Tuning detection signal input from the tuner (FM/AM) "L": tuned
69
ST_CLK
O
Serial data transfer clock signal output to the tuner (FM/AM)
70
ST_DO
I
Serial data input from the tuner (FM/AM)
71
ST_CE
O
Serial chip enable signal output to the tuner (FM/AM)
72
ST_DI
O
Serial data output to the tuner (FM/AM)
73
NO USE
O
Not used
74
KEY INT
I
Wake up signal input terminal
75
LED_LAT
O
Serial data latch pulse signal output to the LED driver
76
NO USE
O
Not used
77
S-AIR_I2C_SDA
I/O
I2C Two-way data bus with the EZW-RT10 or EZW-T100
78
S-AIR_I2C_SCL
I/O
I2C data transfer clock signal input/output to the EZW-RT10 or EZW-T100
79
NO USE
O
Not used
80
NO USE
O
Not used
81
NO USE
O
Not used
82, 83
V_SEL0, V_SEL1
O
Video signal input selection signal output terminal
84
IO_CE
O
Serial data latch pulse signal output to the changer control
85
IO_RESET
O
Reset signal output to the changer control "L": reset
86
IO_DI
O
Serial data output to the changer control
87
IO_DO
I
Serial data input from the changer control
88
IO_CLK
O
Serial data transfer clock signal output to the changer control
89
DMPORT_DET
I
Connect detection signal input from the DMPORT connector
90
MONO/ST_DET
I
MONO or STEREO detection signal input terminal
91
A.CAL_MIC_LEVEL
I
MIC level detection terminal for the AUDIO IN/A.CAL MIC jack
92
DESTINATION
I
Setting terminal for the destination
93
MODEL
I
Setting terminal for the model
94, 95
KEY2, KEY1
I
Front panel key input terminal (A/D input)
96
VSS
-
Ground terminal
97
KEY0
I
Front panel key input terminal (A/D input)
98
VREF
-
Reference voltage (+3.3V) terminal
99
VCC
-
Power supply terminal (+3.3V)
100
NO USE
O
Not used
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