Kenwood KVT-512DVD Service Manual page 12

KVT-50DVDRY/512/522DVD
/522DVDY/532DVD/532DVDM
MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No. Pin Name
34 PRE_MUTESW
35 POWER_PWM
36 NAVI_RX
37 NAVI_TX
38 TV_MC_DATA/TV_MC_DATA
38 TV_MC_DATA/NC
39 VCC1
40 TV_SC_DATA/TV_SC_DATA
40 TV_SC_DATA/NC
41 VSS
42 TV_BP_CLK/TV_BP_CLK
42 TV_BP_CLK/NC
43 NC
44 TUN_SDA
45 TUN_SCL
46 R_DATA/R_DATA
46 R_DATA/NC
47 R_QUAL/R_QUAL
47 R_QUAL/NC
48 EVOL_MUTE0
49 EVOL_MUTE1
50 EVOL_MUTE2
51 EVOL_MUTEB
52 EVOL_MUTEC
53 TV_JUDGE
54 WRT_E2P
55 AVSW_PDN
56 VILL_R
57 VSS
58 VILL_G
59 VCC2
60 VILL_B
61 NT_PAL
62 VMUTE
63 X0
64 VILL_DET
12
I/O Application
O Pre-out mute (SW)
O Frequency control of DC-DC_IC
I Communication with navigation system
O Communication with navigation system
Data output to TV μ-com
O
(For other destination than K and R)
O (K,R destination)
Data input from TV μ-com
I
(For other destination than K and R)
O (K,R destination)
Communication clock with TV μ-com
O
(For other destination than K and R)
O (K,R destination)
O
I/O Communication data with tuner
O Communication clock with tuner
DATA input from RDS decoder
I
(For other destination than X and (V))
O (X, (V) destination)
QUAL input from RDS decoder
I
(For other destination than X and (V))
O (X, (V) destination)
O E-VOL front mute
O E-VOL rear mute
O E-VOL C·SW mute
O E-VOL_B·AVOUT mute
O E-VOL_C mute
I Determination of TV_BOX if it is old or new
I Used when writing into E2P
O Communication clock with AV switch
O Brightness control of "R" in variable illumination
O Brightness control of "G" in variable illumination
O Brightness control of "B" in variable illumination
I NTSC/PAL determination signal input
O LCD output mute control
O Touch panel control
I Variable illumination identifi cation terminal
Processing Operation Description
H: OFF, L: ON
L: ON, H: OFF
L: ON, H: OFF
L: ON, H: OFF
H: ON, L: OFF
L: ON, H: OFF
H: Old, L: New
L: Normal condition
H: When writing into E2P
H: PAL, L: NTSC
H: MUTE, L: Normal
L: F3, H: F4