Sony CMT-GPX9DAB / HCD-GPX9 Service Manual ▷ View online
49
HCD-GPX9
•
IC Pin Function Description
MAIN BOARD IC306 M30622MEP-A27FPU0 (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
CD DISCSENS 2
I
Not used
2
CD DISCSENS 1
I
Not used
3
STBY LED
O
LED drive signal output terminal (power)
4
SIRCS IN/WAKE
I
SIRCS signal input terminal
5, 6
VOL A, VOL B
I
Jog dial pulse input terminal (volume)
7
FLSTB
O
Serial data read strobe signal output to the FL/LED driver
8
BYTE
I
External data bus width select signal input terminal
9
CNVSS
-
Ground terminal
10
XCIN
I
Sub system clock input terminal (32.768 kHz)
11
XCOUT
O
Sub system clock output terminal (32.768 kHz)
12
RESET
I
System reset signal input terminal "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
O
Main system clock output terminal (16 MHz)
14
VSS
-
Ground terminal
15
XIN
I
Main system clock input terminal (16 MHz)
16
VCC
-
Power supply terminal (+3.3V)
17
NMI
I
Non-maskable interrupt signal input terminal Not used
18
RDS-CLK
I
RDS serial data transfer clock signal input terminal
19
CD SCOR
I
Subcode Q data request signal input terminal
20
AC-CUT
I
Power down detection signal input terminal "L": power down
21
FL CLK
O
Serial data transfer clock signal output to the FL/LED driver
22
CD XRST
O
System reset signal output to the CD servo block
23
CD XLT
O
Latch pulse signal output to the CD servo block
24
CD SENS
I
Internal status (SENSE) input from the CD DSP
25
CD MILP
O
Serial data latch pulse output to the MP3 decoder Not used
26
CD MICS
O
Chip select signal output to the MP3 decoder Not used
27
CD MP3REQ
I
Data transfer request signal input from the MP3 decoder Not used
28
CD MP3STB
O
Standby signal output to the MP3 decoder Not used
29
IICCLK
I/O
IIC data transfer clock signal input and output Not used
30
IICDATA
I/O
IIC two-way data bus Not used
31
DAB DATA IN
I
Serial data input from the DAB module
32
DAB DATA OUT
O
Serial data output to the DAB module
33
CD MP3RST
O
Reset signal output to the MP3 decoder Not used
34
CD CLK
O
Serial data transfer clock signal output to the CD DSP
35
CD MIDIO
O
Serial data output to the MP3 decoder Not used
36
CD MIDIN
I
Serial data input from the MP3 decoder Not used
37
CD MICK
O
Serial data transfer clock signal output to the MP3 decoder Not used
38
CD DATA
O
Serial data output to the CD DSP
39
CD AMUTE
O
CD muting on/off control signal output terminal
40
TRE A
I
Jog dial pulse input from the rotary encoder (treble)
41
TRE B
I
Jog dial pulse input from the rotary encoder (treble)
42
BASS A
I
Jog dial pulse input from the rotary encoder (bass)
43
BASS B
I
Jog dial pulse input from the rotary encoder (bass)
44
SW4 (8CM)
I
CD disc size detection (8cm/12cm) signal input terminal Not used
45
SW3 (PUSH-
CLOSE)
I
CD push-close switch input terminal Not used
Ver. 1.1
50
HCD-GPX9
Pin No.
Pin Name
I/O
Description
46
SW2-1 (CLOSE)
I
CD close switch input terminal Not used
47
DAB POWER 5
O
Power on/off control signal output for the DAB
48
DAB POWER 3.3
O
Power on/off control signal output for the DAB
49
DAB SELECT
O
DAB/analog tuner (FM/AM) input selection signal output termianl
50
UK LOCAL
I
Destination setting terminal
51
LOD NEG
O
Loading motor control signal output Not used
52
LOD POS
O
Loading motor control signal output Not used
53
SW-POWER
O
Sub power block on/off control signal output terminal
54
-
O
Not used
55
XTCN
O
Oscillator control signal output to the CD DSP
56
-
O
Not used
57
CD BD POWER
O
Power on/off control signal output for CD block
58
RDS DATA
I
RDS serial data input terminal
59
CDM80
LOAD-OUT
O
Loading motor control signal output (loading out direction)
60
CDM80
LOAD-IN
O
Loading motor control signal output (loading in direction)
61
(TRIGGER SW)
CDM80 SW3
I
Trigger switch input terminal "L": switch on
62
VCC
-
Power supply terminal (+3.3V)
63
(OUT SW)
CDM80 SW1
I
Out switch input terminal "L": switch on
64
VSS
-
Ground terminal
65
(CHUCK SW)
CDM80 SW2
I
Chuck switch input terminal "L": switch on
66
FAN DRIVE
O
Fan motor drive signal output terminal Not used
67
ST MUTE
O
Tuner muting on/off control signal output terminal
68
ST STEREO
I
FM stereo detection signal input from the tuner unit "L": stereo
69
ST TUNED
I
Tuning detection signal input from the tuner unit "L": tuned
70
ST CE
O
Chip enable signal output to the FM/AM tuner unit
71
ST DATA OUT
O
Serial data output to the FM/AM tuner unit
72
ST DATA IN
I
Serial data input from the FM/AM tuner unit
73
ST CLK
O
Serial data transfer clock signal output to the FM/AM tuner unit
74
KEY WAKE UP
I
System wake up signal input terminal in the standby status
75
TC PLAY
I
Tape play switch input terminal
76
TC TRG
O
Plunger driver signal output terminal "L": plunger on
77
TC CAPM CONT
O
Capstan/reel motor drive signal output terminal "L": forward, "H": reverse
78
BIAS ON
O
REC bias on/off control signal output terminal "H": REC bias on
79
TC R/P
O
PB/REC switching control signal output terminal "L": PB
80
RY ON
O
Relay drive signal output for main power supply "H": power on
81
WATPOW
O
Not used
82
TC DOOR SW
I
Tape deck lid open/close detection signal input terminal Not used
83
LINE MUTE
O
Line muting on/off control signal output terminal "H": muting on
84
PROTECT
I
Protect signal input from the amplifier circuit "L": protect
85
SP RELAY
O
Speaker on/off relay drive signal output terminal "L": speaker off
86
AMP POWER
O
AMP muting on/off control signal output terminal "H": AMP on
87
EQ DATA
O
Serial data output to the electrical volume
51
HCD-GPX9
Pin No.
Pin Name
I/O
Description
88
EQ CLK
O
Serial data transfer clock signal output to the electrical volume
89 to 91
KEY3 to KEY1
I
Front panel key or headphone detection input terminal (A/D input)
92
MODEL
I
Setting terminal for the model type
93
DEST
I
Setting terminal for the destination
94
TC END SW
I
End switch detection from tape deck block
95
TC HALF/
REC SW
I
Half/REC switch detection from tape deck block
96
AVSS
-
Ground terminal
97
NC
O
Not used
98
VREF
I
Reference voltage (+3.3V) input terminal
99
AVCC
-
Power supply terminal (+3.3V)
100
FL DATA
O
Serial data output to the FL/LED driver
52
HCD-GPX9
SECTION 7
EXPLODED VIEWS
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
1
4-251-905-01 PLATE (L), SIDE
2
2-630-669-01 SHEET (TOP)
3
4-251-906-01 PLATE (R), SIDE
4
4-247-752-01 FOOT, RUBBER
5
4-251-908-42 COVER, HEAT SINK
6
2-629-442-01 PLATE (A)
#1
7-685-871-01 SCREW +BVTT 3X6 (S)
#2
7-685-647-79 SCREW +BVTP 3X10 TYPE2 IT-3
#3
7-685-872-01 SCREW +BVTT 3X8 (S)
7-1.
SIDE PLATES SECTION
•
Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
•
The mechanical parts with no reference
number in the exploded views are not supplied.
number in the exploded views are not supplied.
•
Accessories are given in the last of the
electrical parts list.
electrical parts list.
NOTE:
•
-XX and -X mean standardized parts, so they
may have some difference from the original
one.
may have some difference from the original
one.
•
Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
Example:
KNOB, BALANCE (WHITE) . . . (RED)
↑
↑
Parts Color
Cabinet's Color
The components identified by mark
0 or dotted line with mark 0 are
critical for safety.
Replace only with part number
specified.
0 or dotted line with mark 0 are
critical for safety.
Replace only with part number
specified.
1
2
5
3
4
not
supplied
supplied
not
supplied
supplied
not supplied
front panel
section
section
top block section
main section
#1
#1
#1
#1
#2
#2
#2
#2
#3
#3
#3
#3
6
Ver. 1.1
•
Abbreviation
EE
EE
: East European model
Click on the first or last page to see other CMT-GPX9DAB / HCD-GPX9 service manuals if exist.