JVC Rear Projection Television HD-52Z575 User Manual
Page 8
1-8 (No.YA092B)
2.1.6 MAIN CPU PIN FUNCTION (IC7601 : M306V7FGF-088FP) [DIGITAL SIGNAL PWB ASS’Y]
Pin
Port
Pin name
I/O
Function
1 VHOLD1 VHOLD1
I Data slice for main screen closed caption
2 HFLT1
HFLT1
I/O LPF for main screen closed caption video input
3 P9.4
O Not used
4 P9.3
O Not used
5 P9.2
DIGRO
O R [0] for OSD
6 P9.1
TB1IN
I AC power for timer clock
7 P9.0
REMO
I Remote control
8 BYTE
BYTE
I Data bus width select [L = 16bit (fixed)]
9 CNVss
CNVss
I CPU programming mode select [Normal = L]
10 P8.7
DIGGO
O G [0] for OSD
11 P8.6
DIGBO
O B [0] for OSD
12 RESET
RESET
I Reset for main CPU [Reset = L]
13 XOUT
XOUT
O System clock osillation (crystal) : 16MHz
14 Vss
Vss
- GND
15 XIN
XIN
I System clock osillation (crystal) : 16MHz
16 VccI
VccI
I 3.3V stand-by power supply
17 OSC1
OSC1
I Clock for OSD
18 OSC2
OSC2
O Not used : Clock for OSD
19 P8.3
INT1
I AV COMPULINK control
20 P8.2
INT0
I Request for sub(chassis) CPU communication
(serial data)
21 OUT1
OUT1
O Ys (blanking) for OSD
22 OUT2
OUT2
O YM (transparence) for OSD
23 P7.7
O Not used
24 P7.6
O Not used
25 P7.5
O Not used
26 P7.4
O Not used
27 P7.3
CTA2/RTS2
O Not used : Digital tuner control
28 P7.2
CLK2
O Not used : Digital tuner control
29 P7.1
RxD2
I Not used : Digital tuner control
30 P7.0
TxD2
O Not used : Digital tuner control
31 P6.7
SDA2
I/O Not used
32 DIGR1
DIGR1
O R [1] for OSD
33 DIGG1
DIGG1
O G [1] for OSD
34 DIGB1
DIGB1
O B [1] for OSD
35 P6.3
TxDO
I Data receive (serial) for external programming
36 P6.2
RxDO
O Data transmission (serial) for external programming
37 P6.1
CLKO
I Clock for external programming
38 P6.0
RTSO
O Busy for external programming [Operation = H]
39 P5.7
I Not used
40 P5.6
O Not used
41 HOLD
HOLD
I CPU programming mode select [Normal = H]
42 P5.4
O Not used
43 P5.3
O Not used
44 P5.2
O Not used
45 P5.1
O Not used
46 P5.0
WR
O CPU programming mode select [Normal = L]
47 P4.7
MICON_TX
O Data transmission for sub(chassis) CPU
communication (serial)
48 P4.6
MICON_RX
I Data receive for sub(chassis) CPU communication
(serial)
49 P4.5
MI_CLK
I Clock for sub(chassis) CPU communication (serial)
50 P4.4
O Not used
Pin
Port
Pin name
I/O
Function
51 P4.3
O Not used
52 P4.2
O Not used
53 P4.1
O Not used
54 P4.0
O Not used
55 P3.7
O Not used
56 P3.6
O Not used
57 P3.5
O Not used
58 P3.4
O Not used
59 P3.3
O Not used
60 P3.2
O Not used
61 P3.1
O Not used
62 HSYNC
HSYNC
I H. sync for OSD
63 P3.0
O Not used
64 VSYNC
VSYNC
I V. sync for OSD
65 P2.7
O Not used
66 P2.6
O Not used
67 P2.5
O Not used
68 P2.4
O Not used
69 P2.3
O Not used
70 P2.2
O Not used
71 P2.1
O Not used
72 P2.0
O Not used
73 P1.7
O Not used
74 P1.6
O Not used
75 P1.5
O Not used
76 P1.4
O Not used
77 P1.3
O Not used
78 P1.2
O Not used
79 P1.1
O Not used
80 P1.0
O Not used
81 P0.7
O Not used
82 P0.6
O Not used
83 P0.5
O Not used
84 P0.4
WAKE
O Reset for sub(chassis) CPU
85 P0.3
CARD_DET
I Not used : Card detection for ATSC digital tuner
86 P0.2
POWER_SW
I Not used : Power switch (mechanical) detection
87 P0.1
SDA0
I/O Data for Inter IC (serial) bus control : memory
88 P0.0
SCL0
O Clock for Inter IC (serial) bus control : memory
89 P10.7
DIGR2
O R [2] for OSD
90 P10.6
DIGG2
O G [2] for OSD
91 P10.5
DIGB2
O B [2] for OSD
92 P10.4
O Not used
93 P10.3
KEY1
I Key scan data for front control button
(MENU/CH+/CH-) KEY2
94 P10.2
KEY0
I Key scan data for front control button
(VOL+/VOL-) KEY1
95 VHOLD2 VHOLD2
I Data slice for sub screen closed caption
96 HLF2
HLF2
I/O LPF for sub screen closed caption video input
97 CVIN2
CVIN2
I Video(Y) for sub screen closed caption
98 TVSETB TVSETB
I Test terminal [L Fixed]
99 VCCE
VCCE
I 5V stand-by power supply
100 CVIN1
CVIN1
I Video(Y) for main screen closed caption