Kenwood KCH-19 Service Manual page 5

Pin No. Name I/O
16 GND - Ground
17 USB_D+ I/O USB0 PHY data plus
18 USB_D- I/O USB0 PHY data minus
19 GND - Ground
20 I2CDT I/O I2C serial data
21 I2CCK I I2C serial clock
22 /KEYINT O Key state change signal
23 PRST I LCD driver reset signal
24 /RD_LCD I LCD driver Read signal
25 /WR_LCD I LCD driver Write signal
26 DC I LCD driver data/command switch
27 /CS_LCD I LCD driver chip-serect signal
28 D[0] I/O LCD driver data input
29 D[1] I/O LCD driver data input
30 D[2] I/O LCD driver data input
31 D[3] I/O LCD driver data input
32 D[4] I/O LCD driver data input
33 D[5] I/O LCD driver data input
34 D[6] I/O LCD driver data input
35 D[7] I/O LCD driver data input
36 D[8] I/O LCD driver data input
37 D[9] I/O LCD driver data input
38 D[10] I/O LCD driver data input
39 D[11] I/O LCD driver data input
40 D[12] I/O LCD driver data input
41 D[13] I/O LCD driver data input
42 D[14] I/O LCD driver data input
43 D[15] I/O LCD driver data input
44 18M I 1.8V input
45 GND - Ground
46 GND - Ground
47 54M I 5.4V input
48 GND - Ground
49 NC - No connection
50 NC (IGN) - No connection (Ignition sense in-
J1 (MIC jack)
1 DM/KVL_3 I/O MIC data detection
2 HOOK/RXD/D-2 I/O Hook detection / Serial data input
3 MIC_3 I MIC signal input
4 ME_3 - MIC ground
5 PTT/TXD_3 I/O PTT input / Serial data output
6 GND - Ground
7 SB_2 O Switched power supply
Function
signal
put)
/ USB PHY data minus
Pin No. Name I/O
8 BLC_4/D+2 I/O Back light control signal / USB
Function
PHY data plus
(No.RA019<Rev.001>)1-5