Sony HCD-VX777 Service Manual ▷ View online
49
HCD-VX777
1
AUDIO OUT ON/OFF
O
AUDIO OUT signal output.
H=ON, L=OFF.
2
STEREO
I
STEREO detect signap input.
L=ON, H=OFF.
3
TUNED
I
TUNED
4
SIRCS
I
5
SUR1
O
Surround control signal output.
6
SUR2
O
Surround control signal output.
7
SUR3
O
Surround control signal output.
8
GND
—
Ground
9
GND
—
Ground
10
XC-IN
I
SUB CLOCK input (32.768kHz)
11
XC-OUT
O
SUB CLOCK output (32.768kHz)
12
RESET
I
System reset input.
13
X-OUT
O
MAIN SYSTEM CLOCK output (16MHz).
14
VSS
—
Ground
15
X-IN
I
MAIN SYSTEM CLOCK intput (16MHz).
16
VCC
—
Power supply.
17
NM1
I
PULL UP(EVER+5V)
18
RDS-INT
I
RDS interrupt signal input.
19
SCOR
I
CD Q data request signal input.
20
RDS-DATA
I
RDS data signal intput.
21
ST-MUTE
O
TUNER mute signal output.
22
ST-CE
O
TUNER chip eneble output.
23
ST-DOUT
O
TUNER data output.
24
BU-PWM3
BU PWM3 for CD-RW.
25
ST-DIN
I
TUNER data input.
26
BU-PWM2
BU PWM2 for CD-RW.
27
ST-CLK
O
TUNER clock signal output.
28
BU-PWM1
BU-PWM1 for CD-RW.
29
IIC-CLK
O
IIC SCL output.
30
IIC-DATA
O
IIC SDA output.
31
TXD1
—
Not used.
32
SQ-DATA
I
Subcode Q data input (CD data).
33
SQ-CLK
I
Subcode Q data input (CD clock).
34
SENS
I
BD condition signal input.
35
CD-DATA
O
CD data input.
36
NC
—
Not used.
37
CD-CLK
O
CD clock input.
38
CD-POWER
O
CD POWER signal output.
H=ON, L=OFF.
39
CLOCK-OUT
I
Clock check signal input.
40
HOLD
O
MODE signal input.
41
M-RESET
I
System reset input.
42
XLT
O
CD latch signal output.
43
XRST
O
CD reset signal output.
44
MTR-CT1
O
CD motor control signal output.
45
MTR-CT2
O
CD motor control signal output.
46
OPEN-SW
I
Tray oprn detect signal input.
47
CLOSE-SW
I
Tray close detect signal input.
48
UP/DOWN-SW
I
Pick-up up/down detect signal input.
49
T-SENS
I
CD table detect signal input.
50
NC
—
Not used
51
A-TRIG
O
A deck trigger control signal output.
H=ON, L=OFF.
52
B-TRIG
O
B deck trigger control signal output.
H=ON, L=OFF.
53
AMS-IN
I
AMS signal input.
L=ON, H=OFF.
Function
Pin Name
Pin No.
I/O
• IC501 MASTER CONTROL (M30620MCA-A95FP) (MAIN BOARD)
50
HCD-VX777
54
CAPM-H/L
O
Capstan motor High/Low speed control signal output.
55
CAPM-CONTROL
O
Capstan motor REV/FWD/STOP control signal output.
H=REV, L=FWD/STOP.
56
A-PLAY
I
A deck play detect signal input.
57
B-PLAY
I
B deck play detect signal input.
58
TC-MUTE
O
Tape deck line mute ON/OFF signal output.
H=ON, L=OFF.
59
REC/PB/PAS
I
REC/PB/PASS select signal input.
60
NR-ON/OFF
O
DOLBY NR ON/OFF signal output.
H=ON, L=OFF.
61
REC-MUTE
O
REC mute ON/OFF signal output.
H=ON, L=OFF.
62
VCC
—
Power Supply.
63
SOFT-TEST
O
Not used.
64
VSS
—
Ground
65
BAIS
O
BIAS ON/OFF signal output.
H=ON, L=OFF
66
EQ-H/N
O
EQ High/Normal select signal output.
H=High, L=Normal.
67
PB-A/B
O
Playback deck A/B select signal output.
H=deck B, L=deck A.
68
ALC
O
ALC ON/OFF signal output.
L=ON, H=OFF.
69
TC-RELAY
O
Tape deck relay ON/OFF signal output.
H=ON, L=OFF.
70
A-HALF
I
A deck half detect signal input.
71
NC
—
Not used.
72
NC
—
Not used.
73
DISPLAY KEY
I
Display key input.
74
POWER KEY
I
Power key input.
75
STBY LED
O
Standby led signal output,H=ON, L=OFF.
76
NC
—
Not used.
77
NC
—
Not used.
78
GAME/VIDEO
O
Game in selector output.
L=GAME, H=VIDEO
79
DBFB ON/OFF
O
DBFB signal output.
L=ON, H=OFF.
80
GEQ-DATA
O
GEQ IC data signal output.
81
GEQ-CLK
O
GEQ IC clock signal output.
82
LINE-MUTE
O
Line mute signal output.
L=ON, H=OFF.
83
STK-MUTE
O
Power amplifier mute ON/OFF signal output.
H=ON, L=OFF.
84
STBY-RELAY
O
STANDBY relay control signal output.
85
REAR-RELAY
O
Rear speaker relay signal output.
H=ON, L=OFF.
86
SURR-RELAY
O
Surround speaker relay signal output.
H=ON, L=OFF.
87
FRONT-RELAY
O
Front speaker relay signal output.
H=ON, L=OFF.
88
PROTECT
I
Speaker protect signal input.
L=ON, H=OFF.
89
A-SHUT
O
A deck reel pulse detect signal output.
90
B-SHUT
O
B deck reel pulse detect signal output.
91
B-HALF
I
B deck half detect signal input.
92
MODEL-IN
I
MODEL input.
93
SPEC-IN
I
Version select signal input.
94
FREQ-B
O
For booster amp signal output.
95
FREQ-A
O
For booster amp signal output.
96
AVSS
—
Analog ground.
97
BOOSTER-IN
I
Booster encoder input.
98
VREF
—
Analog Reference voltage.
99
AVCC
—
Analog power supply.
100
AC-CUT
I
AC cut check signal input.
L=ON, H=OFF.
Function
Pin Name
Pin No.
I/O
51
HCD-VX777
1 to 5
G5 to G1
O
FL gride signal output.
6 to 10
P1 to P5
O
FL segment signal output.
11
VSS-IO
—
Ground
12 to 22
P6 to P16
O
FL segment signal output.
23
VDD-FP
—
Power supply.
24 to 41
P17 to P34
O
FL segment signal output.
42
VSS-IO
—
Ground
43 to 47
P35 to P39
O
FL segment signal output.
48
VKK
—
–30V driving power for FL.
49
MO0
I
Micom operating mode.
50
MD1/VDD-VFT
I
Micom operating mode.
51
MD2
I
Micom operating mode.
52
REC/PAUSE LED
O
REC/PAUSE LED driver output.
53
ENTER LED
O
ENTER LED driver output.
54
TAPE A/B LED
O
TAPE A/B LED driver output.
55
TUNER LED
O
TUNER LED driver output.
56
MD/VIDEO LED
O
MD/VIDEO LED driver output.
57
CD/VCD LED
O
CD/VCD LED driver output.
58
GAME IN LED
O
GAME IN LED driver output.
59
DISC1 LED
O
DISC1 LED driver output.
60
IIC DATA
O
IIC SDA
61
IIC CLK
O
IIC SCL
62
AVCC
—
Analog power supply.
63
AVSS
—
Analog ground.
64 to 66
KEY0 to KEY2
I
KEY input(AD)
67 to 71
BPF4 to BPF0
I
BPF input(AD)
72
BPF5
I
BPF input(AD)
73
ALL BAND
I
BPF input(AD)
74
DISC 2 LED
O
DISC2 LED driver output.
75
DISC 3 LED
O
DISC3 LED driver output.
76
VIDEO SWITCH
O
Video switching signal output.
L=GAME, H=VCD.
77
RESET
I
RESET(low active)
78
HEADPHONE
I
Headphone detect signal input.
H=ON, L=OFF.
79
VOL 1B
I
Volume B signal input.
80
VOL 1A
I
Volume A signal input.
81
VSS-CPU
—
Ground.
82
X OUT
O
4MHz(X out)
83
X IN
I
4MHz(X in)
84
VCC-CPU
—
Power supply.
85 to 91
NO USE
—
Not used.
92
SOFT TEST
I
Soft test.
93 to 100
G13 to G6
O
FL gride signal output.
Function
Pin Name
Pin No.
I/O
• IC601 DISPLAY CONTROL (MB90M407PF-G-107-BND) PANEL Board
52
HCD-VX777
• IC502 VIDEO CD CONTROL (M30622MGA-A45FP) (VIDEO Board (1/3))
Pin No.
Pin Name
I/O
Function
1
SENSE
I
Internal state (SENSE) monitor input (IC101)
2
SENSE CLK
O
Serial data reading clock output (IC101)
3
RESOLUTION
O
Serial data output (IC101)
4
CROMA LEVEL
O
Lach output (IC101)
5
DSP CLK
O
Serial data clock output (IC101)
6
TSENS
I
Not used
7
REMOTE IN
I
Not used
8
BYTE
I
External bus width change input (Connected to ground)
9
CNVSS
–
Ground
10
DSP MUTE
O
Mute output (IC101) “H” : mute
11
CTRL1 (L : DOUBLE)
O
Double change output (IC101) “L” : double
12
XRESET
I
System reset input “L” : reset
13
XOUT
O
Main clock output (10MHz)
14
VSS
–
Ground
15
XIN
I
Main clock input (10MHz)
16
VCC
–
+5V power supply
17
NMI
I
Requests mask disable interruption input (Connected to +5V)
18
SCOR
I
Subcode sync input (IC101)
19
D SENS
I
Not used
20
CL680 INT
I
Video CD interruption input (IC505)
21
H. SYNC IN
I
H. sync signal input
22
BGP
I
BGP output
23
—
I
Not used
24
PWM3 (BD)
O
25
—
I
Not used
26
PWM2 (BD)
O
27
—
I
Not used
28
PWM1 (BD)
O
29
I
2
C. CLK
I/O
I
2
C clock input from master control
30
I
2
C. DATA
I/O
I
2
C data input from master control
31
DATA1O
O
Serial 1 data output (IC505, 509)
32
DATA1I
I
Serial 1 data input (IC505, 509)
33
CLK1
O
Serial 1 clock output
34
RTS1
O
35
DATA0
I
Serial 0 data output (DF, CL680)
36
DATA1
I
Serial 0 data input (DF, CL680)
37
CLK1
O
Serial 0 clock output (DF, CL680)
38
P. ON
I
Not used
39
BUS XRDY
I
Not used
40
BUS
I
Not used
41
BUS XHOLD
I
Not used
42, 43
BUS
I
Not used
44
BUS XRD
I
Model selection input “L” : chinese model, “H” : except chinese model
45
V. SYNC
I
V sync signal input
46
BUS XWRL
I
Not used
47
LO. BOOST
I
Not used
48
AUDIO MUTE
O
Audio mute output “L” : mute (Not used)
49
LOAD OUT
I
Not used
50
LOAD IN
I
Not used
Click on the first or last page to see other HCD-VX777 service manuals if exist.