Sony HCD-DX80, Service Manual, Page: 50 / 74

50
HCD-DX80
•
PANEL BOARD IC601 MB90M407PF-G-103-BND (DISPLAY CONTROL)
Pin No. Pin Name I/O Description
1 to 5 G5 to G1 O FL grid drive signal output
6 to 10 P1 to P5 O
FL segment drive signal output
11 VSS IO —
Ground terminal (VSS for I/O)
12 to 22 P6 to P16 O FL segment drive signal output
23 XDD-FIP —
Power supply terminal (+3.3V) (VDD for FL Tube)
24 to 41 P17 to P34 O
FL segment drive signal output
42 VSS IO — Ground terminal (VSS for I/O)
43 to 47 P35 to P39 O
FL segment drive signal output
48 VKK —
–32V driving power for FL
49 MD0 I Micom operating mode terminal (fixed at “H”)
50 MD1/VDD-VFT I
Micom operating mode terminal (fixed at “H”)
51 MD2 —
Micom operating mode terminal (fixed at “L”)
52 REC/PAUSE LED O REC PAUSE/START LED on/off control signal output terminal “H”: LED on, “L”: LED off
53 ENTER LED O
ENTER LED on/off control signal output terminal “H”: LED on, “L”: LED off
54 TAPE A/B LED O
TAPE A/B LED on/off control signal output terminal “H”: LED on, “L”: LED off
55 TUNER LED O TUNER/BAND LED on/off control signal output terminal “H”: LED on, “L”: LED off
56
MD/VIDEO LED
O
MD (VIDEO) LED on/off control signal output terminal “H”: LED on, “L”: LED off
57 CD/VCD LED O
CD LED on/off control signal output terminal “H”: LED on, “L”: LED off
58 GAME IN LED O GAME LED on/off control signal output terminal “H”: LED on, “L”: LED off
59 DISC 1 LED O
DISC 1 LED on/off control signal output terminal “H”: LED on, “L”: LED off
60 IIC DATA I/O
Data input/output terminal for the IIC bus
61 IIC CLOCK I/O
Shift clock signal input/output terminal for the IIC bus
62 AVCC —
Power supply terminal (+3.3V) (for A/D)
63 AVSS —
Ground terminal (for A/D)
64 KEY0 I
Key input terminal (A/D input)
S768 to S781 (PLAY MODE, REPEAT, EDIT, MUSIC EQ, MOVIE EQ,
v , ENTER, V ,
P FILE, GROOVE, SURROUND,
g G
,
X
,
M
keys input)
65 KEY1 I
Key input terminal (A/D input) S752 to S758, S760 to S765
(DISPLAY,
B
,
b
, SPECTRUM, EFECT on/off, GAME EQ, KARAOKE PON,
m
–,
.
,
x
,
CD SYNC HI-DUB, REC PAUSE/START, M + keys input)
66 KEY2 I
KEY input terminal (A/D input) S791 to S796
(
Z
OPEN/CLOSE (CD), DISC SKIP/EX-CHANGE, DISC3, DISC2, DISC1, I/
1
keys input)
67 to 70 BPF4 to 1 I
Band-pass filter input from the BA3830F (IC602)
71
SUPER LOW
FREQUENCY
(BPF0)
I
Band-pass filter input from the BA3830F (IC602)
72 BPF5 I
Band-pass filter input from the BA3830F (IC602)
73 ALL BAND
I All band (L+R) Band-pass filter input from the BA3830F (IC602)
74 DISC 2 LED O
DISC 2 LED on/off control signal output terminal “H”: LED on, “L”: LED off
75 DISC 3 LED O
DISC 3 LED on/off control signal output terminal “H”: LED on, “L”: LED off
76 VIDEO SWITCH
O VIDEO/GAME selection signal output terminal Not used (open) “H”: VIDEO
77 RESET
I Reset signal input from the system control (IC501)
78 HEADPHONE I Headphone detect signal input terminal “H”: Headphone Yes, “L”: Headphone No
79 VOL 1B I
Jog dial pulse input from the rotary encoder (IC751 VOLUME) B phase input
80 VOL 1A I
Jog dial pulse input from the rotary encoder (IC751 VOLUME) A phase input
81 VSS-CPU — Ground terminal (+3.3V) (VSS for CPU)