Sharp LC-32P70E (serv.man8) Service Manual ▷ View online
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4. Check installation LPT driver using “C:\Program Files\Micronas\LptDrv\LptDrvTest.exe”. After run this software, if
LPT driver is installed properly must appear this screen:
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•If the result is not OK, check inside PC bios: Parallel Port Mode=EPP
To run VCTp software update program, please click over “VCTP” icon from “START\All programs\Micronas\Visual
I2C\IC\VCTP” and after Visual I2C finish their starting process click on “TVT” module. As additional method, it’s pos-
sible to create a direct access to “C:\Program Files\Micronas\Visual I2C\ic\vct6wxyP\vctq_tvt.vi2c” and launch it from
Windows Desktop.
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To start updating process follow next instructions:
1. Set Autoread in ON option.
2. Click on “GO” button.
3. Wait until “40” appears in Bootloader Version field.
4. Close DOS pop up windows pressing any key (“Press any key to continue…”.).
5. Click on the “Erase flash” button and wait for a seconds and set the AutoRead to OFF.
6. Check in the desired software version is selected in the “Load BinàFlash” option. If it’s not the correct one,
please double click on the file name and select it. The first time this software is use it’s necessary to confirm write
Addressing margin as from 0x0 to 0x7ffff.
VCTp Software Updating, I2C (continued)
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7. Click on the “Load Bin à Flash” to start updating process.
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8. When the updating process finishes, the “Progress” pop up window automatically closes. If appears some problem
during the updating process a error label appears in the filename information line.
If the TV has problem to enters in the “Bootloader mode”, it’s possible to force it by hardware method. This alternative
method is described below:
1.Switch off TV set or hold VCTp RESET line to GND.
2.Pull down SCL line (pin 1) to GND (pin 3) in P2306 connector.
3.Switch on TV set or release VCTp RESET line.
4.Release SCL pull down after minimum of 2 seconds.
5.Check if VCTp is in bootloader mode with Autoread setting in ON.
6.Wait until “40” appears in Bootloader Version field.
7.Follow instruction from item 5 on software method.
Sometimes, depending on the PC hardware, the progress bar runs very fast (Normal time: 1 minute) or some error mes-
sage appears in the filename information line. This means it’s necessary to modify some parameter of LPT port, for this
reason select “LPT Preferences” on the “File\Preferences…” menu and increase Delay from “0” to “1” or “2” (normally,
these values are the best choice).
these values are the best choice).
VCTp Software Updating, I2C (continued)
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B. How to update the Digital Board Software.
Jig Method Description
Hardware requirements:
1. A modem null (Cross type) DB9 female to DB9 female cable.
2. The Jig Kit (Sharp Code: QCNWKA012WJZZ)
3. Make the connections as in the below figure.
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SOFTWARE UPDATING
There are 2 methods to update software in the VCTp: I2C method and RS-232C method.
·
RS-232C method is allowed when the TV is working properly and the action should be only software upgrade.
·
I2C method is required when the VCTp flash is empty or corrupted (it means, any software inside IC running).
1 RS-232C Method Description
The hardware tools requirement are:
1. A Modem-null (Cross type) DB9 female to DB9 female cable.
2. An adaptor DB9 male to mini-Din 9 pin male cable (Sharp Code: QCNWGA015WJPZ)
3. Make the connections as indicated in the figure:
Software requirements :
To upgrade VCTp software from RS-232C external connector is necessary to use a Tera Term (Pro) free software.
The URL of Tera Term home page is:
http://hp.vector.co.jp/authors/VA002416/teraterm.html
(The address may be changed in future)
Tera Term (Pro) supported operating systems:
MS-Windows 95 or upper
MS-Windows NT 3.5 and 4.0 or upper
Note.- For Windows 3.1 use Tera Term version 1.X.
Copy all the distribution files to an empty floppy disk or temporary directory (for example C:\ TEMP ).
Run SETUP.EXE and follow the instruction given by it.
After the installation, the distribution files are no longer needed, you can delete them or may keep them in the floppy
disk.
How to use Tera Term Pro :
When the Tera Term (Pro) program is used, it’s necessary to configure some settings. Follows next action to config-
ure the connection:
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Computer
TV Set
(CI Terminal)
Jig
RS-232C serial control cable
(cross type, commercially available)
Software requirements:
1. “Winupload” application software on PC.
How to setup the “Winupload” software:
1. Start “Winupload”. It will appear the following picture.
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2. Select the most suitable RS232 Serial Port from “Port Setting” - “Process” Menu.
3. Select the following settings from “Port Settings” Menu.
Bits Per Second: 115200
Parity: None
Data bits: 8
Stop bits: 1
Procedure
1. Start “Winupload”. It will appear the following picture.
2. Establish connection on Winupload Software.
Digital Board Software Updating , Jig (continued)
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