Panasonic CN-NVD905U - Strada - Navigation System, Service Manual

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7
4.1.3. TFT Block
IC407 : C2BBFD000652
78 P12 Switched battery
power supply I 2.7 2.7 2.7 2.7 2.7 2.7
79 P13 Test terminal - 0 0 0 0 0 0
80 P14 Test terminal - 0 0 0 0 0 0
Pin
No.
Port Description I/O
1 VCC +5V power supply -
2 VREF +5V power supply -
3 AVSS Ground -
4 BL CNT TFT backlight control O
5 HPOS1 Horizontal display positive select 1 O
6 HPOS2 Horizontal display positive select 2 O
7 I2C DO Serial data to EEPROM O
8 WP Write protect for EEPROM O
9 INTEXT Internal or External for Flash writer O
10 MODE Mode control for Flash writer
11 TXD Serial data to NAVI PCB O
12 RXD Serial data from NAVI PCB I
13 I2C DI Serial data in TFT PCB I
14 I2C CLK Serial clock in TFT PCB O
15 CNVSS CNVSS from Flash writer I
16 TOUCH SW Touch switch control O
17 NC Not connected -
18 RESET Reset I
19 XIN Crystal OSC I
20 XOUT Crystal OSC O
21 VSS Ground -
22 BL ON Backlight power control O
23 ZOOM Not connected -
24 SIDE Not connected -
25 JUST Not connected -
26 X+ X-axis control for Touch panel O
27 X- X-axis control for Touch panel O
28 Y+ Y-axis control for Touch panel O
29 Y- Y-axis control for Touch panel O
30 LED TFT mode control O
31 TILT LED TFT mode control O
32 POW KEY Not connected -
33 VOL+ KEY Volume-up key detection I
34 VOL- KEY Volume-down key detection I
35 MENU KEY Map key detection I
36 AUDIO KEY Source key detection I
37 GENZ KEY Navigation key detection I
38 DIM Pulled down -
39 XR X-axis detection of Touch panel I
40 XG X-axis detection of Touch panel I
41 YR Y-axis detection of Touch panel I
42 YG Y-axis detection of Touch panel I
Pin
No
Port Description I/O Vol [V]
FM AM CD DV
D
NA
VI
TV