Sony HCD-GX450 (serv.man2) Service Manual ▷ View online
41
HCD-GX450
33
34
35
36
37
38
39
40
41
42
1
8
43
61
62
63
64
60
59
56
52
50
47
46
45
44
48
49
25
26
27
28
29
30
31
32
17
18
19
20
21
22
23
24
9
10
11
2
3
4
5
6
7
58
57
55
53
51
12
13
14
15
16
54
RAS
CAS
OE
WE
PIO7
PIO6
PIO5
PIO4
Bus
Switch
BUCK
CCE
AD12
AD11
Gener
al
In/Output P
o
rt
Address Calc.
2sets
Y-
P
o
in
ter
register
C-P
o
inter
register
X-P
o
inter
register
VDDM
SRMSTB
VDDT
AD10
AD9
ERAM
2k w
o
rd
CRAM
4k w
o
rd
CR
OM
4k w
o
rd
YRAM
4k w
o
rd
XRAM
4k w
ord
SRAM/
DRAM I/F
SRAM I/F
1Mbit
SRAM
X-Bus
Y-
B
u
s
AD7
AD6
AD5
AD8
VC0
Timing
Generator
PRAM
Instr
uction
Decoder
Prog
ra
m
Control
MCU
. I/F
register
XO • X1 • X2
Y0 •
Y1 •
Y2
MX
MY
MZ
MA
C
A0
A1
AX
A
Y
ALU
A2
A3
DIT
round & limit
round & limit
Au
dio I/F
LRCKIA
BCKIA
SDI0
LRCKO
BCKO
SDO0
VSS
VDDT
MIACK
MICK
MIDIO
MILP
MICS
STANBY
RESET
VDDP
AD4
AD3
AD2
AD1
AD0
VSS
VDD
CK
O
VDDX
XO
TEST
VCOI
VSSX
XI
MIMD
VSSP
PIO3
PIO2
PIO1
PIO0
VSS
CKI
VDD
TXO
SFSY
SBSY
D
ATA
POM
Sub code
I/F
CDP Cont
I/F
IC301
TC94A34FG-002
42
HCD-GX450
IC251 BA5947FM-E2
1
LEVEL SHIFT
MUTING
D
15
16
+
–
+
–
D
D
17
18
D
19
20
VREF
21
22
23
24
25
26
27
28
PREVCC
OPOUT
OUTVREF
CH4CAPA
CH4IN
CH3FIN
CH3RIN
GND
MUTE
POWVCC
CH3OUTF
CH3OUTR
CH4OUTF
CH4OUTR
OPIN
–
2
OPIN+
INTERFACE
14
13
D
12
11
D
10
9
8
7
6
CH2FIN
CH2RIN
GND
5
4
CH1FIN
CH1RIN
VREFIN
POWVCC
CH2OUTR
CH2OUTF
CH1OUTR
CH1OUTF
INTERFACE
D
D
3
SW
INTERFACE
IC303 BH15FB1WG
THERMAL
PROTECTION
VOLTAGE
REFERENCE
CONTROL
BLOCK
OVER CURRENT
PROTECTION
VIN
+
−
1
GND
2
STBY
3
NC
4
V
OUT
5
IC701, 712 BA6956AN
1
2
3
4
5
6
7
8
9
CONTROL LOGIC
TSD
VREF
OUT2
OUT1
RNF
VM
VCC
FIN
GND
RIN
– DRIVER Board –
43
HCD-GX450
IC101 BD3401KS2
– MAIN Board –
1
D1
2
D2
3
E1
9
TAPE
A1
10
TAPE
A2
11
TAPE
B1
12
TAPE
B2
13
RECNF2
14
RECOUT2
5
PBNF2
6
PBOUT2
7
PBOUT1
4
E2
8
PBNF1
15
RECOUT1
16
RECNF1
33 VOLOUT1
34 BBNF1
35 BBIN1
36 VIN1
DIGITAL
CONTROL
64
C2
+
−
−
+
−
+
−
−
+
−
ALC
ATT
ATT
ALC
DI-LIMITER
SURROUND
17
ALC
18
SC
19
SI
27
LF3
28
LF2
29
LF1
30
BBIN2
20
VDD
21
GND
22
VCC
23
1/2 VCC
24
FILTER
+
−
32
VOLOUT2
+
−
25
SWOUT
26
LF4
+
−
−
LOW-PASS
FILTER
SOFT
SWITCH
BUFFER
MIX
MIC AMP
+
−
31
BBNF2
38 VIN2
37
TONE
OUT1
OUT1
48 MNF2
+
−
−
+
−
+
−
+
−
+
−
+
−
+
−
+
−
−
63
C1
62
B2
61
B1
60
A2
59
A1
45 MNF1
44 BNF1
42 BOUT2
41 BNF2
39
TONE
OUT2
OUT2
40 AMS OUT
47 MOUT2
46 MOUT1
43 BOUT1
+
−
58
MIC
56
SAOUT1
55
SAOUT2
57
CAP
+
−
INPUT
SELECT
+
−
+
−
54
LINEOUT1
53
LINEOUT2
52
SUR2
51
SUR1
49
TNF2
50
TNF1
TONE
CONTROL
TONE
CONTROL
+
+
+
+
44
HCD-GX450
MAIN BOARD IC901 M30302MCP-A06FPU0 (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
O-BD3401-
DATA
O
Serial data output to the electrical volume
2
O-BD3401-CLK
O
Serial data transfer clock signal output to the electrical volume
3
O-VFD-RESET
O
System reset signal output to the FL/LED driver
4
O-VFD-CE
O
Chip enable signal output to the FL/LED driver
5
I-AC-CUT
I
AC power detection signal input terminal
6
I-VOL-A
I
Jog dial pulse input terminal
7
I-SIRCS-IN
I
SIRCS signal input terminal
8
BYTE
I
Mode setting terminal (connected to ground)
9
CNVSS
I
Mode setting terminal Normally not used
10
XCIN
(32.768KHZ)
I
Sub system clock input terminal (32.768 kHz)
11
XCOUT
(32.768KHZ)
O
Sub system clock output terminal (32.768 kHz)
12
I-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 changes to "H"
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
13
XOUT (16MHZ)
O
Main system clock output terminal (16 MHz)
14
VSS
-
Ground terminal
15
XIN (16MHZ)
I
Main system clock input terminal (16 MHz)
16
VCC1
-
Power supply terminal (+3.3V)
17
NMI
I
Non-maskable interrupt signal input terminal (connected to +3.3V)
18
I-RDS-CLK
I
RDS data transfer clock signal input terminal (not used)
19
I-SCOR
I
Subcode Q sync (SCOR) input from the CD DSP
20
I-AC-PULSE
I
AC main power detection signal input terminal
21
I-VOL-B
I
Jog dial pulse input terminal
22
O-STBY-LED
O
LED drive signal output terminal
23
O-SYS-MUTE
O
Muting on/off control signal output terminal
24
O-STK-MUTE
O
Standby signal output to the power amplifier (for front speaker output)
25
I-SWR
I
Sub woofer relay on/off signal input
26
O-POWER-
RELAY
O
Relay drive signal output for main power
27
O-FRONT-SP-
RELAY
O
Power on/off control signal output for the fan motor and amplifier section
28
O-MP3-CLK
O
Serial data transfer clock signal output to the MP3 decoder
29
I-MP3-DI
I
Serial data input from the MP3 decoder
30
O-MP3-DATA
O
Serial data output to the MP3 decoder
31
O-CD-DATA
O
Serial data output to the CD DSP
32
I-CD-SENS
I
Internal status (SENSE) input from the CD DSP
33
O-CD-CLK
O
Serial data transfer clock signal output to the CD DSP
34
O-XTCN
O
Oscillator control signal output to the CD DSP
35
O-VFD-DATA
O
Serial data output to the FL/LED driver
36
I-VFD-DATA
I
Serial data input from the FL/LED driver
37
O-VFD-CLK
O
Serial data transfer clock signal output to the FL/LED driver
38
O-MP3-RESET
O
System reset signal output to the MP3 decoder
39
O-MP3-CS
O
Chip select signal output to the MP3 decoder
40
I-MP3-ACK
I
Acknowledge signal input from the MP3 decoder
41
xHOLD
I/O
Connected to ground
• IC Pin Function Description
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