7
KDC-MP738U/W7541U
/W7541UY/X792/X8009U
Pin No.
Pin Name
I/O
Application
Truth
Value Table
Processing / Operation / Description
35
NC (D5V_DIS)
O
Not used
Output L
fi
xed
36
PON_ILL
I/O
Panel LED
FL
fi
lament power supply
FL bias power supply control
H: ON, Hi-Z: OFF
Turned OFF when the display is black out.
Turned OFF when panel is dismounted/opened.
37
NC
O
Not used
Output L
fi
xed
38
PON_PANEL
I/O
Power supply for panel
μ
-com
Required for panel authentication
H: ON, Hi-Z: OFF
Turn OFF when panel is dismounted/opened or
when power is off.
39
ROMCOR_DET
I
ROM correction writing-in request
H: Can re-write ROM (ROM correction)(I2C is open)
39
EPM
I
EPM input terminal for re-writing ROM. ROM is
re-writable when the input is “L” at the boot up.
40
CD_MOTOR
O
CD motor control terminal
w
Refer to the truth value table
41
CD_LOE_LIM_SW
I
CD detection terminal (Chucking detection)
H: Loading completed, L: No disc is found.
42
CD_LOS_SW
I
CD loading detection terminal
L: Ejection completed.
43
CD_DISC12_SW
I
CD disc detection terminal (12cm)
L: 12cm disc
44
PAN_SC_CON
O
Panel operation control terminal
CE when the system
μ
-com is re-written
H: In normal condition, L: Stop the panel.
45
CD_LOEJ
I/O CD motor control terminal
w
Refer to the truth value table
46
S_SOC_REQ
I
SOC
→
System
μ
-com communication request
47
SOC_STOP
O
SOC stop terminal
H: Normal, L: Stop SOC.
48
SOC_RST
O
SOC reset terminal
H: Normal, L: Reset
49
S_SYS_REQ
O
System
μ
-com
→
SOC communication request
50
SOC_MUTE
I
SOC mute request
L: MUTE request, H: In normal condition
51
PON_D5V
I/O
5V power supply control terminal for FL
fi
lament,
panel, and USB.
H: ON, Hi-Z: OFF
52
PON
I/O Power supply control terminal
H: ON, Hi-Z: OFF
53
OEM_DISP_DATA
I/O External display DATA
External display
53
NC
O
Not used (Model without OEM_DISP)
Output L
fi
xed
54
OEM_DISP_CLK
I/O External display CLK
External display
54
NC
O
Not used (Model without OEM_DISP)
Output L
fi
xed
55
OEM_DISP_CE
I/O External display control request
External display
55
NC
O
Not used (Model without OEM_DISP)
Output L
fi
xed
56
P_CON
I/O PCON control terminal
POWER ON: H, POWER OFF: Hi-Z
STBY source: Hi-Z
57
ANT_CON
O
ANTCON control terminal
TUNER source: H, POWER OFF: L
STBY source: L
58
NC
O
Not used
Output L
fi
xed
59
ILLUMI_DET
I
Dimmer illumi detection
L: ON, H: OFF
60
VCC2
61
MUTE_0
O
IC-2 FRONT MUTE control
L: Mute ON, Independent setup of time
constant 10ms, H: In normal condition
62
VSS
63
MUTE_1
O
IC-2 REAR MUTE control
L: Mute ON, Independent setup of time
constant 10ms, H: In normal condition
MICROCOMPUTER’S TERMINAL DESCRIPTION