Sony HCD-VX555J Service Manual page 55

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• IC601 MB90M407PF-G-103-BND (DISPLAY CONTROL) (PANEL BOARD)
Pin No. Pin Name
1 - 5 G5-1
6 - 10 P1-5
11 VSS-IO
12 - 22 P6-16
23 VDD-FIP
24 - 42 P17-35
43 VSS-IO
44 - 47 P36-39
48 VKK
49 MD0
50 MD1/VDD-VFT
51 MD2
52 REC/PAUSE LED
53 ENTER LED
54 TAPE A/B LED
55 TUNER LED
56 MD/VIDEO LED
57 CD/VCD LED
58 GAME IN LED
59 DISC 1 LED
60 IIC DATA
61 IIC CLK
TE
L 13942296513
62 AVCC
63 AVSS
64 - 66 KEY0-2
67 - 70 BPF4-1
71 BPF0
72 BPF5
73 ALL BAND
74 DISC 2 LED
75 DISC 3 LED
76 VIDEO SWITCH
77 RESET
78 HEADPHONE
79 VOL 1B
80 VOL 1A
81 VSS-CPU
82 X0
83 X1
84 VCC-CPU
85 - 91 N.C.
92 SOFT TEST
93 - 100 G13-6
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I/O
O FL grid signal output
O FL segment signal output
— Ground for I/O port
O FL segment signal output
— Power supply for FL tube
O FL segment signal output
— Ground for I/O port
O FL segment signal output
— -30V for FL tube
I Micom operation mode (10k pull-up)
I Micom operation mode
I Micom operation mode (10k pull-down)
O REC/PAUSE LED control signal output
O ENTER LED control signal output
O TAPE A/B LED control signal output
O TUNER LED control signal output
O MD/VIDEO LED control signal output
O CD/VCD LED control signal output
O GAME IN LED control signal output
O DISC 1 LED control signal output
O IIC DATA signal output
O IIC CLK signal output
— Power supply for A/D
— Ground for A/D
I Key input (A/D)
I BPF input (A/D)
I SUPER LOW FREQUENCY (BPF input)
I BPF input (A/D)
I L+R (BPF input)
O DISC 2 LED control signal output
O DISC 3 LED control signal output
O Not used
— Reset signal input
I Headphone detect signal input (H=ON,L=OFF)
I Volume 1B signal input
I Volume 1A signal input
— Ground for CPU
— Oscillator
— Oscillator
— Power supply for CPU
— Not used
O Not used
O FL grid signal output
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Description
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