JVC LT-42WX70/APT Service Manual page 10

2.4.2 MAIN CPU PIN FUNCTION
Pin Pin name I/O
1 SDM_D13 I/O Data for SDRAM
2 SDM_D12 I/O Data for SDRAM
3 SDM_D11 I/O Data for SDRAM
4 SDM_D10 I/O Data for SDRAM
5 SDM_D9 I/O Data for SDRAM
6 SDM_D8 I/O Data for SDRAM
7 IVSS - GND
8 GEN_D0 I/O Data for flash memory
9 GEN_D1 I/O Data for flash memory
10 GEN_D2 I/O Data for flash memory
11 GEN_D3 I/O Data for flash memory
12 GEN_D4 I/O Data for flash memory
13 GEN_D5 I/O Data for flash memory
14 GEN_D6 I/O Data for flash memory
15 GEN_D7 I/O Data for flash memory
16 IVDD - +3.3V power supply
17 GEN_D15 I/O Data for flash memory
18 GEN_D14 I/O Data for flash memory
19 GEN_D13 I/O Data for flash memory
20 GEN_D12 I/O Data for flash memory
21 MVSS - GND
22 MVDD - +1.5V power supply
23 GEN_D11 I/O Data for flash memory
24 GEN_D10 I/O Data for flash memory
25 GEN_D9 I/O Data for flash memory
26 GEN_D8 I/O Data for flash memory
27 SDM_DQM0 I Byte enable for SDRAM
28 SDM_DQM1 I Byte enable for SDRAM
29 SDM_CLK I Clock feedback input for SDRAM
30 IVDD - +3.3V power supply
31 SDM_CLK O Clock output for SDRAM
32 IVSS - GND
33 SDM_CKE O Clock enable for SDRAM
34 SDM_WE O Write enable for SDRAM
35 SDM_CAS O CAS for SDRAM
36 SDM_RAS O RAS for SDRAM
37 SDM_CS O Chip enable for SDRAM
38 SDM_BS0 O Bank select for SDRAM
39 SDM_BS1 O Bank select for SDRAM
40 SDM_A10 O Address for SDRAM
41 SDM_A11 O Address for SDRAM
42 SDM_A9 O Address for SDRAM
43 SDM_A8 O Address for SDRAM
44 SDM_A7 O Address for SDRAM
45 SDM_A6 O Address for SDRAM
46 SDM_A5 O Address for SDRAM
47 SDM_A4 O Address for SDRAM
48 IVSS - GND
49 IVDD - +3.3V power supply
50 SDM_A3 O Address for SDRAM
51 SDM_A2 O Address for SDRAM
52 SDM_A1 O Address for SDRAM
53 SDM_A0 O Address for SDRAM
54 VSS - GND
55 VDD - +1.5V power supply
56 TCCS_CEDIA_OUT O Serial data transmission for CEDIA/TCCS
57 TCCS_CEDIA_IN I Serial data receive for CEDIA/TCCS
1-10 (No.YA700<Rev.001>)
[IC7301 : DIGITAL PWB]
Function
Pin Pin name I/O
58 SYSCLKA O Not used
59 SBI1 I Not used
60 SBO1 O Not used
61 AMP_MUTE O Speaker output muting [Muting = L]
62 SBI0 I Not used
63 SBO0 O Not used
64 GEN_A16 O Address for flash memory
65 GEN_A15 O Address for flash memory
66 GEN_A14 O Address for flash memory
67 GEN_A13 O Address for flash memory
68 GEN_A12 O Address for flash memory
69 GEN_A11 O Address for flash memory
70 GEN_A10 O Address for flash memory
71 GEN_A9 O Address for flash memory
72 GEN_A8 O Address for flash memory
73 IVDD - +3.3V power supply
74 IVSS - GND
75 GEN_A19 O Address for flash memory
76 GEN_A20 O Address for flash memory
77 GEN_WE O Write enable for flash memory
78 LVDS_RST O Reset for LVDS drive (IC5121 IC5141) [Reset = L]
79 GEN_A18 O Address for flash memory
80 GEN_A17 O Address for flash memory
81 RTCCNT I Oscillation control for RTC [L fixed]
82 GEN_A7 O Address for flash memory
83 GEN_A6 O Address for flash memory
84 GEN_A5 O Address for flash memory
85 IVSS - GND
86 LVDS_SEL O LVDS select for LCD panel [On = H]
87 BL_DET I Detection for LCD backlight [Error = H]
88 IVDD - +3.3V power supply
89 GEN_A4 O Address for flash memory
90 GEN_A3 O Address for flash memory
91 GEN_A2 O Address for flash memory
92 GEN_A1 O Address for flash memory
93 GEN_OE O Read enable for flash memory
94 FL_CS O Chip select for flash memory
95 GEN_A0 O Address for flash memory
96 VSS - GND
97 NRST I CPU reset [Reset = L]
98 VDD - +1.5V power supply
99 PSCNT O Not used
100 SDA2 I/O I2C bus (data) for audio amp (IC6001) etc.
101 SCL2 O I2C bus (clock) for audio amp (IC6001) etc.
102 SDA1 I/O I2C bus (data) for CAPSENS control (IC7701)
103 SCL1 O I2C bus (clock) for CAPSENS control (IC7701)
104 NTEST I Not used
105 OSD_HD I Horizontal sync for OSD
106 IVSS - GND
107 OSD_XI I Clock for OSD
108 IVDD - +3.3V power supply
109 OSD_VD I Vertical sync for OSD
110 OSD_YM O OSD digital output [YM]
111 OSD_YS O OSD digital output [YS]
112 OSD_R4 O OSD digital output R[4]
113 OSD_R3 O OSD digital output R[3]
114 OSD_R2 O OSD digital output R[2]
Function