Sharp LC-40LS340E, Service Manual

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LC-32LE340/343
LC-40LE340/343
Pin Name Dir Description
R0X0P 68
R0X0N 67
TMDS Input TMDS input Port 0 data pair for HDMI and MHL.
R0X1P 70
R0X1N 69
R0X2P 72
R0X2N 71
TMDS Input TMDS input Port 0 data pairs for HDMI.
R0XCP 66
R0XCN 65
TMDS Input TMDS input Port 0 clock pair for HDMI and MHL.
R1X0P 4
R1X0N 3
TMDS Input TMDS input Port 1 data pair for HDMI and MHL.
R1X1P 6
R1X1N 5
R1X2P 8
R1X2N 7
TMDS Input TMDS input Port 1 data pairs for HDMI.
R1XCP 2
R1XCN 1
TMDS Input TMDS input Port 1 clock pair for HDMI and MHL.
R2X0P 14
R2X0N 13
TMDS Input TMDS input Port 2 data pair for HDMI and MHL.
R2X1P 16
R2X1N 15
R2X2P 18
R2X2N 17
TMDS Input TMDS input Port 2 data pairs for HDMI.
R2XCP 12
R2XCN 11
TMDS Input TMDS input Port 2 clock pair for HDMI and MHL.
R3X0P 22
R3X0N 21
TMDS Input TMDS input Port 3 data pair for HDMI and MHL.
R3X1P 24
R3X1N 23
R3X2P 26
R3X2N 25
TMDS Input TMDS input Port 3 data pairs for HDMI.
R3XCP 20
R3XCN 19
TMDS Input TMDS input Port 3 clock pair for HDMI and MHL.
HDMI Transmitter Port Pins
Signal Name Pin Type Dir Description
TX0P 60
TX0N 61
TX1P 58
TX1N 59
TX2P 56
TX2N 57
TMDS Output HDMI Output Port Data.
TMDS Low Voltage Differential Signal output data pairs.
TXCP 62
TXCN 63
TMDS Output HDMI Output Port Clock.
TMDS Low Voltage Differential Signal output clock pair.
Pin Name Type Dir
DSCL0
DSCL1
DSCL2
DSCL3 30
34
40
44 LVTTL
Schmitt
Open drain
5-V tolerant
Input DDC I
2
C Clock for respective port.
These signals are true open drain, and do not pull-down to ground when
power is not applied to the device. These pins require an external pull-up
resistor.
R0PWR5V
R1PWR5V
R2PWR5V
R3PWR5V 32
36
42
46 Power Input 5V Port detection input for respective port.
Connect to 5V signal from HDMI input connector. These signals require a
10
series resistor and at least a 1 F capacitor to ground. A 100 k pull-
down resistor is also required for these signals.
CBUS_HPD0
CBUS_HPD1
CBUS_HPD2
CBUS_HPD3 31
35
41
45 LVTTL
5-V tolerant
Output Hot Plug Detect Output for respective port.
Connect to HOTPLUG of HDMI input connector. In MHL mode, this serves
as the respective port control bus.
R4PWR5V 49 Power Input 5V Standby power or 5V power from 5
th
Receiver port.
If this signal is connected to the VGA cable then it requires a 10 ohm series
resistor and at least a 1 F capacitor to ground. If connected to a local power
supply the resistor is not needed but a capacitor of at least 1 F is
recommended.
DSDA0
DSDA1
DSDA2
DSDA3 29
33
39
43 LVTTL
Schmitt
Open drain
5-V tolerant
Input
Output
DDC I
2
C Data for respective port.
These signals are true open drain, and do not pull-down to ground when
power is not applied to the device. These pins require an external pull-up
resistor.
44
Pin Name Type Dir
CSDA 53 LVTTL
Schmitt
Open drain
5-V tolerant
Input
Output
Local Configuration/Status I
2
C Data.
Chip configuration/status is accessed using this I
2
C port. This pin is a true
open drain, so it does not pull to ground if power is not applied.
DSCL4 48 LVTTL
Schmitt
5-V tolerant
Input DDC I
2
C Clock for VGA port.
These signals are true open drain, and do not pull-down to ground when
power is not applied to the device. This pin requires an external pull-up
resistor.
DSDA4 47
LVTTL
Schmitt
5-V tolerant
Input
output
DDC I
2
C Data for VGA port.
These signals are true open drain, and do not pull-down to ground when
power is not applied to the device. This pin requires an external pull-up
resistor.
CSCL 54 Schmitt
Open drain
5-V tolerant
Input Local Configuration/Status I
2
C Clock.
Chip configuration/status is accessed using this I
2
C port. This pin is a true
open drain, so it does not pull to ground if power is not applied.
Pin Name
Dir
INT 52 Schmitt
Open drain
8 mA
5-V tolerant
Input
Output
Interrupt Output.
This is an open-drain output and requires an external pull-up resistor.
RSVDL
RSVDL 10
28 Reserved pin — These pins must be tied to ground with a 10 k or less resistor during
normal operation. Connecting directly to ground is recommended.
TPWR_CI2CA 55 LVTTL
8 mA
5-V tolerant
Input
Output
I
2
C Slave Address input / Transmit Power Sense Output.
At the end of power-on-reset (POR), this pin is used as an input to latch the
I
2
C sub-address. The level on this pin is latched when the POR transitions
from the asserted state to the de-asserted state. After completion of POR,
this pin is used as the TPWR output, indicating that the selected HDMI input
port is receiving an active TMDS clock. This pin has an internal pull-up to
the MICOMVCC33 power supply. If this signal is pulled-down, a 4.7K ohm
resistor should be used.
Pin Name Pin Type Direct
ion Description
CEC_A 50 CEC Compliant
5-V tolerant
Input
Output
HDMI compliant CEC I/O used for interfacing to CEC devices.
This signal is electrically compliant with the CEC specification. It connects
to the CEC signal of all HDMI connectors in the system.
As an input, this pin acts as a LVTTL Schmitt triggered input and is 5-V
tolerant. As an output, the pin acts as an NMOS driver with resistive pull-up.
This pin has an internal pull-up resistor.
CEC_D 51 LVTTL
Schmitt
Open drain
5-V tolerant
Input
Output
CEC interface to local system.
This pin is an open drain and requires an external pull-up resistor. This pin
typically connects to a local CPU if the CEC functions are performed by the
CPU directly, and not the CEC controller inside the device.
Pin Name
Power and Ground Pins
Signal Name Type
VCC33 9, 27, 64 Power Analog and digital core VCC. Must be supplied at 3.3 V.
MICOM_VCC33 37 Output During normal mode, this pin provides 3.3 V power to an external
microcontroller. The maximum output current is 30 mA. This pin
requires 1 F capacitor to ground.
SBVCC33 38 Power
3.3V standby power. If 3.3V standby mode is not used, this pin
should be left as not connected.
ePAD ePad Ground ePad must be connected to Ground .
All analog and digital ground planes are tied together to the ePad,
which
must
be connected to Ground.
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LC-40LS340