Read Sharp LC-42SD1E (serv.man5) Service Manual online
LC-42SD1E/RU
5 – 12
2.4.2 Pin Connections and short description
Pin No.
Pin Name
I/O
Pin Function
Sheet Name
2
PICAA0
I
OPC_in Signal.
OPCIN
3
PICAA1
I
Connect to TH3001.
TH3001
4
PICA2
O
TEM3 Signal.
TEMP3
5
PICA3
O
TEMP2 Signal.
TEMP2
6
PICA4
O
TEMP1 Signal.
TEMP1
7
PICA5
O
QS' on/off Signal.
QS SET (QS on/off)
10
PICA6
I
LED Power Green Signal.
LED POW G
9
PICA7
I
LED Power Red Signal.
LED POW R
21
PICBO
O
HDMI_Write Protect Signal.
HDMI_WP
22
PICB1
O
Mute_SP Signal.
MUTE-SP (Open)
23
PICB2
O
LCD, S_LBR Signal.
LCD LR
24
PICB3
O
LCD, G_LBR Signal.
LCD UD
25
PICB4
O
50/60Hz Ds_Select Signal.
FRAME
26
PICB5
–
–
Open
27
PICB6
I
LED Sleep LED IN Signal.
LEDSLP
28
PICB7
I
LED OPC IN Signal.
LED OPC
11
PICCO
O
Reset Signal to HDMI.
HDMI_RST
12
PICC1
O
SCART1/SCART2 Select Signal.
SCART12
13
PICC2
O
DTU/IN3Y Select Signal.
DTUIN3Y
14
PICC3
O
DTV/PC Select Signal.
DTVPC
15
PICC4
O
DTV/HDMI Select Signal.
DTVHDMI
16
CCPI
O
INVERTER_BRT Signal.
PWMOUT (INV_BRT)
17
PICSCL3
I/O
I2C clock.
BU_SCL3
18
PICSDA3
I/O
I2C data.
BU_SDA3
1
VPP
–
Open
Open
20
3.3V
–
Power Supply for microcontroller
VSUP3.3DRI
8, 19
GND
–
Ground reference for microcontroller
GND
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