Sony DAV-HDX678WF / DAV-HDX975WF / HCD-HDX678WF / HCD-HDX975WF Service Manual ▷ View online
HCD-HDX678WF/HDX975WF
73
– FL Board –
IC100 PT6315
5
OSC
OSC
DATA
SELECTOR
6
DOUT
7
DIN
8
CLK
9
STB
10
KEY1
11
KEY2
SERIAL
INTERFACE
DISPLAY MEMORY
24 BITS x 12 WORDS
24-BIT OUTPUT
LATCH
12-BIT SHIFT
REGISTER
SEGMENT
DRIVER
TIMING GENERATOR
KEY SCAN
COMMAND
DECODER
DIMMING
CIRCUIT
KEY DATA MEMORY
(2 x 16 BITS)
4-BIT LATCH
1
LED1
2
LED2
3
LED3
4
LED4
24
16
16
12
4
8
8
4
8
27 SEG14/KS14
29 SEG16/KS16
30 VEE
28 SEG15/KS15
8
31 SEG17/GRID12
33 SEG19/GRID10
32 SEG18/GRID11
32 SEG18/GRID11
23 SEG10/KS10
24 SEG11/KS11
25 SEG12/KS12
26 SEG13/KS13
22
SEG9/KS9
21
SEG8/KS8
20
SEG7/KS7
19
SEG6/KS6
18
SEG5/KS5
17
SEG4/KS4
16
SEG3/KS3
15
SEG2/KS2
14
SEG1/KS1
MULTIPLEXED
DRIVER
34
SEG20/GRID9
35
SEG21/GRID8
36
SEG22/GRID7
37
SEG23/GRID6
39
GRID4
40
GRID3
41
GRID2
42
GRID1
43
VDD
44
VSS
13
VDD
12
VSS
38
SEG24/GRID5
GRID
DRIVER
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
– POWER Board –
IC901 STR-F6138-LF1352
HCD-HDX678WF/HDX975WF
74
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
1
VC
TSD
2
VIN
3
GND
4
VOUT
5
ADJ
+
–
REF
IC941 SI-3010KM-TLS
HCD-HDX678WF/HDX975WF
75
• IC Pin Function Description
MAIN BOARD IC501 R5F3640MDFAR (SYSTEM CONTROLLER)
MAIN BOARD IC501 R5F3640MDFAR (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
DAMP_SCD/DIR_DIN
O
Serial data output to the stream processor, EZW-RT10 slot and digital audio interface
receiver
receiver
2
DAMP_SHIFT/
DIR_CLK
O
Serial data transfer clock signal output to the stream processor, EZW-RT10 slot and digital
audio interface receiver
audio interface receiver
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
DSP_MOSI
O
Serial data output to the DSP
6
DSP_MISO
I
Serial data input from the DSP
7
DSP_SPICLK
O
Serial data transfer clock signal output to the DSP
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
DIR_ZERO
I
Audio serial data input from the digital audio interface receiver
19
DIR_CSFLAG
I
CSFLAG data input from the digital audio interface receiver
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
XM_AUDIO_SEL
O
XM audio select signal output terminal 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
-
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_OPC(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 data selector
53
HP_MUTE
O
Muting on/off control signal output terminal
HCD-HDX678WF/HDX975WF
76
Pin No.
Pin Name
I/O
Description
54
S-AIR_ADC_SEL
O
Selection signal output to the data selector
55
NO_USE
-
Not used
56
DAMP_LATCH2
O
Serial data latch pulse signal output terminal Not used
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 "L": reset
59
DIR_HCE
O
Chip enable signal output to the digital audio interface receiver
60
DIR_ERROR
I
PLL lock error signal and data error fl ag input from the digital audio interface receiver
61
DIR_XSTATE
I
Source clock selection monitor input from the digital audio interface receiver
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
S-AIR_DET
I
Connect detection signal input from the J100, J101 and EZW-RT10
67
S-AIR_GPIO_2
I
Interrupt signal input from the EZW-RT10
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
DSP_INTR
I
Interrupt signal input from the DSP
74
KEY INT
I
Wake up signal input terminal
75
LED_LAT
O
Serial data latch pulse signal output to the LED driver
76
XM_PCONT/
XM_RESET
O
Serial data output terminal Not used
77
S-AIR_I2C_SDA
I/O
I2C Two-way data bus with the EZW-RT10
78
S-AIR_I2C_SCL
I/O
I2C data transfer clock signal input/output to the EZW-RT10
79
DSP_SF_CE
O
Chip enable signal output to the fl ash memory
80
S-AIR_XMSEL/
S-AIR_IFMTO
O
Data selection signal output terminal
81
DSP_SPIDS
O
Device selection signal output to the DSP
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
DSP_MASTER
I
Master/slave selection signal input terminal "L": DSP is master
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
DIR_HDOUT
I
Read data input from the digital audio interface receiver
Click on the first or last page to see other DAV-HDX678WF / DAV-HDX975WF / HCD-HDX678WF / HCD-HDX975WF service manuals if exist.