Sharp LC-37GD8EK Service Manual / Specification ▷ View online
Pin Assignments
Version 1.0
Issue 12/2008
9
SHARP ELECTRONICS (UK) LTD
CE TECHNICAL SUPPORT
TECHNICAL SERVICES GROUP
HDMI
PIN# Signal
PIN# Signal
PIN# Signal
1
TMDS Data 2+
8
TMDS Data 0 Shield
15
DDC Clock
2
TMDS Data 2 Shield
9
TMDS Data 0
16
DDC Data
3
TMDS Data 2
10
TMDS Clock+
17
Ground
4
TMDS Data 1+
11
TMDS Clock Shield
18
+5V Power
5
TMDS Data 1 Shield
12
TMDS Clock
19
Hot Plug Detect
6
TMDS Data 1
13
CEC
20
SHELL
7
TMDS Data 0+
14
No Connect
S-VIDEO
RS-232C Terminal: 9-pin Mini DIN female connector
Pin No.
Signal
Name
I/O
Reference
1
Output
Not connected
2
RD
Receive Data
Input
Connected to internal circuit
3
SD
Send Data
Output
Connected to internal circuit
4
Input
Not connected
5
SG
Signal Ground
Connected to internal circuit
6
Input
Not connected
7
Output
Not connected
8
Input
Not connected
9
Output
Not connected
Pin Assignments
Version 1.0
Issue 12/2008
10
SHARP ELECTRONICS (UK) LTD
CE TECHNICAL SUPPORT
TECHNICAL SERVICES GROUP
RS-232C Terminal: 9-pin D-sub male connector of the DIN-D-sub RS-232C adapter
Pin No.
Signal
Name
I/O
Reference
1
CD
Not connected
2
RD
Receive Data
Input
Connected to internal circuit
3
SD
Send Data
Output
Connected to internal circuit
4
ER
Not connected
5
SG
Signal Ground
Connected to internal circuit
6
Not connected
7
Not connected
8
Not connected
9
CI
Not connected
RS-232C Cable recommended connection: 9-pin D-sub female connector
Note
Depending on the controlling device used, it may be necessary to connect Pin 4 and Pin 6
on the controlling device (e.g. PC).
on the controlling device (e.g. PC).
Maintenance Procedure
Version 1.0
Issue 12/2008
11
SHARP ELECTRONICS (UK) LTD
CE TECHNICAL SUPPORT
TECHNICAL SERVICES GROUP
Cleaning the LCD
Ensure you unplug the power cord before cleaning the LCD.
The cabinet as well as the operation panel is made of plastic. Avoid
using benzene or thinner, as these can damage the finish on the
cabinet.
using benzene or thinner, as these can damage the finish on the
cabinet.
Do not use volatile agents such as insecticides on the LCD. Do not
attach rubber or plastic items on the LCD for long periods of time.
The effects of some of the agents in the plastic may cause damage
to the quality or finish of the LCD.
attach rubber or plastic items on the LCD for long periods of time.
The effects of some of the agents in the plastic may cause damage
to the quality or finish of the LCD.
Wipe off dirt gently with a soft flannel cloth.
When the dirt is hard to remove, soak a cloth in a neutral detergent
diluted with water, wring the cloth well and then wipe the LCD.
Strong cleaning detergents may discolour, warp or damage the coating on the LCD.
Ensure you test on a small, inconspicuous area on the LCD before using.
diluted with water, wring the cloth well and then wipe the LCD.
Strong cleaning detergents may discolour, warp or damage the coating on the LCD.
Ensure you test on a small, inconspicuous area on the LCD before using.
Cleaning the exhaust and intake vents
Use a vacuum cleaner to clean dust from the exhaust vent and the intake vent.
Firmware Upgrade Procedure
Version 1.0
Issue 12/2008
12
SHARP ELECTRONICS (UK) LTD
CE TECHNICAL SUPPORT
TECHNICAL SERVICES GROUP
Firmware Upgrade Procedure
There are 3 methods to update software in the VCTp: I2C method, RS-232C HyperTerminal
and RS-232C Tera Term method.
There are 3 methods to update software in the VCTp: I2C method, RS-232C HyperTerminal
and RS-232C Tera Term method.
RS-232C method is allowed when the TV is working properly and the action should be
only software upgrade.
only software upgrade.
I2C method is required when the VCTp flash is empty or corrupted (it means, any
software inside IC running).
software inside IC running).
RS-232C Method Description (HyperTerminal)
Part Number
Description
Price Rank
QCNWGA015WJPZ
Connecting Cord
AK
The hardware tools requirement are:
1. A Modem-null (Cross type) DB9 female to DB9 female cable.
2. An adapter DB9 male to mini-Din 9 pin male cable (Sharp Code: QCNWGA015WJPZ)
3. Make the connections as indicated in the figure:
Before using RS-232C updating method is necessary to configure Terminal PC software.
HyperTerminal has been selected as a Terminal software because it’s included in all Windows
versions as an accessory, and you can find it inside
“Accessories\Communications” folder
(Windows XP).
For this reason, please follow carefully the next steps:
1.
For this reason, please follow carefully the next steps:
1.
First time HyperTerminal is used, it’s necessary to configure some settings. Follows next
action to configure two connection: low speed (9600bps) and high speed (115200bps).
action to configure two connection: low speed (9600bps) and high speed (115200bps).
2.
Create a New Connection fi le with name “P55_9600bps”.
3. Select a free COM port and select the Port Settings properties as follows:
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