JVC LT-26A80SU Service Manual page 11

2.5.2 MAIN CPU PIN FUNCTION
Pin Pin name I/O
1 T-V LINK_OUT O
2 POWER_G I
3 PROTECTOR I
4 TCLK I
5 TDO O
6 TDI I
7 TMS I
8 RESETQ I
9 E3_R I
10 E3_L I
11 DIN/D_R I
12 DIN/D_L I
13 E1_R I
14 E1_L I
15 E2_R I
16 E2_L I
17 VREFAU I
18 VSUP8.0AU I
19 GNDA -
20 SGND -
21 R2_OUT O
22 L2_OUT O
23 R_OUT O
24 L_OUT O
25 HEADPHONE_R O
26 HEADPHONE_L O
27 SPEAKER_R O
28 SPEAKER_L O
29 SUBWOOFER O
30 VREFSIF I
31 SIF_IN+ I
32 SIF_IN- I
33 VSUP5.0 I
34 GNDA -
35 GND3.3DIG -
36 VSUP3.3DIG I
37 SPDIF_OUT O
38 I2S_DA_IN I
39 I2S_CL -
40 I2S_WS -
41 I2S_DEL_OUT O
42 I2S_DEL_IN I
43 I2S_DEL_CL -
44 I2S_DEL_WS -
45 VSUP3.3RAM I
46 GND3.3RAM -
47 VD_DV1 I
48 DE_DV1 I
49 CLK_DV1 I
50 DV1_R7 I
51 DV1_R6 I
52 DV1_R5 I
53 DV1_R4 I
54 DV1_R3 I
55 DV1_R2 I
56 DV1_R1 I
57 DV1_R0 I
58 DV1_Y7 I
59 DV1_Y6 I
60 DV1_Y5 I
61 DV1_Y4 I
62 DV1_Y3 I
63 DV1_Y2 I
64 DV1_Y1 I
65 DV1_Y0 I
66 DV1_B7 I
67 DV1_B6 I
68 DV1_B5 I
69 DV1_B4 I
70 DV1_B3 I
71 DV1_B2 I
72 DV1_B1 I
73 DV1_B0 I
74 GND3.3DRI -
75 VSUP3.3DRI I
76 GND3.3COM -
[IC7001 : MAIN PWB]
Function
Data output for T-V LINK
Not used : Low power voltage detection [NG = H]
Power abnormality detection [Emergent = H]
Clock for JTAG interface
Data output for JTAG interface
Data input for JTAG interface
Control signal for JTAG interface
CPU reset [Reset = L]
Audio input for EXT-3
Audio input for EXT-3
Audio input for digital tuner/HDMI
Audio input for digital tuner/HDMI
Audio input for EXT-1
Audio input for EXT-1
Audio input for EXT-2
Audio input for EXT-2
Reference voltage setting
8V power supply
GND
GND
Audio output for EXT-2
Audio output for EXT-2
Audio output for EXT-1
Audio output for EXT-1
Audio output for headphone
Audio output for headphone
Audio output for speaker
Audio output for speaker
Not used
Reference voltage setting
SIF for VHF/UHF tuner
SIF for VHF/UHF tuner
5V power supply
GND
GND
3.3V power supply
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Not used
3.3V power supply
GND
V sync for HDMI
Data enable for HDMI
Clock for HDMI
Pr input for HDMI
Pr input for HDMI
Pr input for HDMI
Pr input for HDMI
Pr input for HDMI
Pr input for HDMI
Pr input for HDMI
Pr input for HDMI
Y input for HDMI
Y input for HDMI
Y input for HDMI
Y input for HDMI
Y input for HDMI
Y input for HDMI
Y input for HDMI
Y input for HDMI
Pb input for HDMI
Pb input for HDMI
Pb input for HDMI
Pb input for HDMI
Pb input for HDMI
Pb input for HDMI
Pb input for HDMI
Pb input for HDMI
GND
3.3V power supply
GND
Pin Pin name I/O
77 VSUP3.3COM I
78 X'TALIN I
79 X'TALOUT O
80 CLKOUT O
81 VSO O
82 HSO O
83 SCL1 O
84 SDA1 I/O
85 GND3.3FL -
86 VSUP3.3FL I
87 AFC1 I
88 DIN_PHOTO I
89 A_MU O
90 PFC_POW O
91 DIN_INT I
92 LCD_POW O
93 OSDV I
94 OSDH I
95 GND3.3IO1 -
96 VSUP3.3IO1 I
97 OSDCLK I
98 OSDFSW I
99 MAIN_POW O
100 IDTV_IRQ O
101 RXD I
102 TXD O
103 OSDB1 O
104 OSDB0 O
105 LB_POW O
106 REMOCON I
107 OSDG1 O
108 OSDG0 O
109 SDA0 I/O
110 SCL0 O
111 OSDR1 O
112 OSDR0 O
113 GND3.3IO1 -
114 VSUP3.3IO1 I
115 DIN_HOTP O
116 DIN_RST O
117 MB_RES O
118 PCS3 O
119 POW_LED O
120 DINHOTP2 O
121 PCLK2 O
122 PCLK1 O
123 GND1.8DIG -
124 VSUP1.8DIG I
125 DBO1_0 O
126 DBO1_1 O
127 VSUP3.3LVDS I
128 LVDS_A3+ O
129 LVDS_A3- O
130 GND3.3LVDS -
131 LVDS_ACLK+ O
132 LVDS_ACLK- O
133 VSUP3.3LVDS I
134 LVDS_A2+ O
135 LVDS_A2- O
136 GND3.3LVDS -
137 LVDS_A1+ O
138 LVDS_A1- O
139 VSUP3.3LVDS I
140 LVDS_A0+ O
141 LVDS_A0- O
142 VSUP1.8LVDS I
143 REXT O
144 GND1.8LVDS -
145 DGO1_8 O
146 DGO1_9 O
147 GND3.3LVDS -
148 DRO1_1 O
149 LVDS_BCLK- O
150 VSUP3.3LVDS I
151 DRO1_2 O
152 DRO1_3 O
153 GND3.3LVDS -
Function
3.3V power supply
20.25MHz oscillation for CPU system clock
20.25MHz oscillation for CPU system clock
Not used
Not used
Not used
2
Clock for I C bus (for HDMI)
2
Data for I C bus (for HDMI)
GND
3.3V power supply
AFT voltage for VHF/UHF tuner
For digital input protection
Speaker/headphone output muting [Muting = H]
Not used : Power on/off control for PFC [ON = L]
Interrupt request for HDMI
Power on/off control for LCD drive [ON = L]
Not used
Not used
GND
3.3V power supply
Not used
Not used
Power on/off control for main power [ON = L]
Interrupt request for digital tuner
Data communication for digital tuner
Data communication for digital tuner
Not used
Not used
Power on/off control for low bias line [ON = L]
Remote control sensor input
Not used
Not used
Data for I 2 C bus (for E2PROM)
2
Clock for I C bus (for E2PROM)
Not used
Not used
GND
3.3V power supply
Hotplug error detection for HDMI connector-1 [Error = L]
Reset for HDMI [Reset = L]
Not used : Reset for MaxxBass [Reset = L]
Not used
POWER LED(green) lighting [ON = L]
Hotplug error detection for HDMI connector-2 [Error = L]
Not used
Not used
GND
1.8V power supply
Not used
Not used
3.3V power supply
LVDS data output for LCD panel
LVDS data output for LCD panel
GND
LVDS clock output for LCD panel
LVDS clock output for LCD panel
3.3V power supply
LVDS data output for LCD panel
LVDS data output for LCD panel
GND
LVDS data output for LCD panel
LVDS data output for LCD panel
3.3V power supply
LVDS data output for LCD panel
LVDS data output for LCD panel
1.8V power supply
Not used
GND
Not used
Not used
GND
Not used
Not used
3.3V power supply
Not used
Not used
GND
(No.YA509)1-11