5
PIN
NO
PORT
NAME
SIGNAL NAME
TYPE FUNCTION
55
P20
HDMI_HP_INV
O
HDMI hot plug signal
56
P21
CS
O
Switching control for Mstar bus and system I2C
62
Safety VCTI_HS
O
VCTI composite sync output
78
FBIN
DVD_SENSE
I
DVD module detection
85
Vert+
TV/DVB_SW
O
IDTV/TV I2C and AGC switch control for tuner
27
P22
WP
O
Write protection control for NVM
28
P23
IR
I
Infrared input
Table 4.1 VCTI port configuration
5 SIDE BOARDS & CONNECTORS
5.1 Keyboard
A four-pin connector is used between 17mb29 and the keyboard:
KEY signal is sent directly to microcontroller ADC port and depending on the voltage level of
KEY signal, microcontroller performs one of these actions: menu, , program-, ,
volume- and source.
SOFT_SW signal is used to switch between “power-off” and “standby” modes.
Summary of Contents for 22LD3750DC
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Page 27: ...25 ESD Performance HBM 2000V MM 200V Chip Complexity 38 FETs ...
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