Sony HCD-GN77D, Руководство по обслуживанию

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78
HCD-GN77D
• 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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