Read Sony HCD-GN88D / MHC-GN88D Service Manual online
78
HCD-GN88D
• IC601 MB90M407PF-G-130-BND (DISPLAY CONTROL) (DISPLAY Board)
Description
Pin Name
Pin No.
I/O
1 to 7
G7 to G1
O
FLD grid output
8 to 10
P1 to P3
O
FLD segment output
11
VSS-IO
—
Ground
12 to 22
P4 to P14
O
FLD segment output
23
VDD-FIP
—
Power supply (+3.3V)
24 to 41
P15 to P32
O
FLD segment output
42
VSS-IO
—
Ground
43 to 46
P33 to P36
O
FLD segment output
47
NO USED
O
Not used (connected to ground)
48
VKK
—
Power supply (-35V)
49
MD0
I
Not used (pull up with resistor)
50
MD1/VDD-VFT
I
Not used (pull up with resistor)
51
MD2
I
Not used (pull down with resistor)
52
VOLUME 5,6 LED
O
Volume level indicatior LED drive signal output
53
VOLUME 7,8 LED
O
Volume level indicatior LED drive signal output
54
VOLUME 9,10 LED
O
Volume level indicatior LED drive signal output
55
VOLUME 11,MULT1
I
Volume level indicatior LED drive signal output
CH LED
56
VOLUME 3,4 LED
I
Volume level indicatior LED drive signal output
57
VOLUME 1,2 LED
O
Volume level indicatior LED drive signal output
58
TAPE A/B, TUNER LED
O
TAPE A/B indicatier LED drive signal output
59
GAME, MD/VIDEO LED
O
GAME, MD/VIDEO indicator LED drive signal output
60
I2C-DATA
O
IIC serial data output
61
I2C-CLOCK
O
IIC clock signal output
62
AVCC
—
Power supply (+3.3V)
63
AVSS
—
Ground
64 to 66
KEY0 to KEY2
I
Key input (A/D port)
67
BPF3
I
Spectrum analyzer BPF signal input
68
BPF2
I
Spectrum analyzer BPF signal input
69
BPF1
I
Spectrum analyzer BPF signal input
70
SUPER LOW FQUENCY
I
Spectrum analyzer BPF signal input
(BPF0)
71
ALL BAND
I
L+R signal input
72
SELECTOR
O
LED group A/B select signal output
73
CD/DVD, REC/PAUSE
O
CD/DVD, REC/PAUSE indicator LED drive signal output
LED
74 to 76
NO USE
O
Not used (connected to ground)
77
RESET
I
Reset input
78
SOFT TEST
O
Not used (open)
79
VOL 1B
I
Volume encoder signal B input
80
VOL 1A
I
Volume encoder signal A input
81
VSS-CPU
—
Ground
82
XOUT
O
Crystal oscillator output (4MHz)
83
XIN
I
Crystal oscillator input (4MHz)
84
VCC-CPU
—
Power supply (+3.3V)
85 to 86
NO USED
O
Not used (open)
87 to 100
G21 to G8
O
FLD grid output
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