REPAIRING AND NOT THROWING AWAY

REPAIRING AND NOT THROWING AWAY

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!
Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

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All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Thursday, 28 February 2019

TOSHIBA 32W15 – TOSHIBA 40L15 LCD TV – HOW TO UPDATE FIRMWARE – CIRCUIT DIAGRAM – ADJUSTMENTS.

Toshiba 32W15 – Toshiba 40L15 LCD TV – How to update Firmware – Circuit Diagram – Adjustments.

Toshiba LCD Color Television - 32W153xDx- 32L153xDx- 40L153xDx- 32W154xDx- 32L154xDx - 40L154xDx
FIRMWARE UPDATING PROCEDURE
SW update via USB
17MB8X Core Software Update
1. Copy the file to USB device. There is no need to use any specific folder.
• upgrade_loader.pkg
2. Turn power to OFF by mechanical switch or removing AC plug and plug the USB to TV.
3. Keep pressing and holding “OK” key from Toshiba remote controller and at the same time turn power to ON by mechanical SW and hold OK pressed until the standby led blinks very rapidly.
4. SW update starts automatically when the led starts blinking.
5. SW update is completed after led blink is done.
* After core update, user/profile settings and panel files do not change.
* After Core update, bootloader/mboot version will be updated.
* SW version can be controlled from other settings or service menu.
HOTEL TV MENU
To enter hotel menu, open main menu by pressing MENU(M) button. 
When you code following password “7935”, hidden hotel TV menu appears.
Hotel Mode
Setting “Hotel Mode” item 'On' activates hotel mode. In other words user can do only what he/she is allowed to do. 
Restriction level can be determined by using other items on menu namely Volume Limit, Panel Button, OSD Disable. In hotel mode, users can not reach channel table and install menu so they could not change any program information.
Last Status
Setting “Last Status” item to 'On' enable TV open with the closing status. Otherwise, if “Last Status” item is set 'Off' TV opens with standby status.
Panel Lock
Enables (Panel Lock = Off) or prohibits (Panel Lock = On) the use of front panel buttons.
RCU Inhibit
If OFF is selected TV will go on normal operation. If It is ON RCU will not function in any menu(including no menu) except this menu. To turn this option OFF later, “hotel TV menu shortcut” (MENU(M)-7-9-3-5) can be used to pop up this menu. RCU will function in Stand-By mode regardless of the state of this option.
Startup Position
Specifies the starting channel when TV is switched ON. May take one of following values:
AUTO
TV is opened using standby key or digit keys: Last channel or last external source when TV is turned off.
TV
TV is opened using standby key or digits keys: TV channel number that is specified on field Startup Channel
Other external sources (EXT1, HDMI2, PC, FAV, SVHS etc.)
TV is opened using standby key or digit keys: Specified external source.
Startup Channel
Specifies the starting TV channel’s ID which will be tuned when startup position is TV
Volume Limit
Sets the maximum value the volume can have. “Volume Limit” can take values between 0-63.
Fixed Volume Enable
Enables (Fixed Volume Enable = On) or prohibits (Fixed Volume Enable = Off) the use of fixed volume value which is set by menu item “Fixed Volume Value”. If Fixed Volume Enable is ON, volume cannot be set to a value other than the Fixed Volume Value.
Fixed Volume Value
Sets the fixed value the volume can have. If Fixed Volume Limit is ON, volume is set with the value here.
Schematic
Headphone Direct Volume
Enables the remote controller volume +/- buttons to change the headphone volume directly. When this feauters is active, volume +/- buttons changes only headphone value, and to change the TV main sound it can be control from sound osd dialog only.
OSD Disable
Disables either only INSTALL menu or all menus, both in analog and digital (IDTV) mode.
All Menus : All menus (MAIN, SOUND, PICTURE, SETTINGS, INSTALLATION) are invisible.
OSD Disable = Disable Setup Menus : Only SETUP menus are invisible.
Invisible Setup Menus are
Main menu: Installation, Channel list
Settings menu: Parental, Sources, Other settings.
Teletext
Enables (Teletext = On) or prohibits (Teletext = Off) the use of teletext (or MHEG if available)
Wakeup Time Channel
Wakeup time alarm is activated if the time of last played service is same to selected time but if this entry is chosen an available service then only that service’s time information will be used. If default behavior (first one) is requested then keep the value as “0”.
Wakeup Time Volume
To modify the volume of tv wake up volume ( It cant be set higher volume than volume limit).
Copy To USB
There are two steps and both are independent from each other.  For welcome image downloading to USB, there should be DownloadWelcomeScreen.mb82 file in USB ROOT.
Copy the updated welcome image to USB in directory “welcome_image” as “hotel_wel.png”
Copy NVRAM data (service list, preferences, etc.) to USB device. On Phonix platform, all nvram data is stored in 8x32KB Flash files named as “nvblock_ ... .bin”. When Copy to USB is called, those files are copied from TV to USB. Then they can be used for various purposes testing on another TV or testing/debugging on observatory etc. Note that USB should be plugged before this operation.
A new folder will be created in the USB with every operation of “Copy To USB”. Folder names will automatically increase like CLONE00001, CLONE00002, etc. (up to 99999)
Copy From USB
Firstly, you will see the directory list of your USB if it is connected. All operations will start after you select one of this folders. The selected folder could also be the root folder. For Copy-From-USB operation, there are two steps and both are independent from each other.
If there is file named “hotel_wel.png” in the folder “welcome_image” in the USB directory you selected, it is copied to tv to use as welcome image. The selected directory can be the root or the one created by user in the USB.
Copy from USB device data to NVRAM: Just the reverse operation done by copy to USB call.
Previously copied nvram files (“nvblock_ ... .bin”) are copied into TV. If there is no flash file or some of them are available on USB, the available ones are copied. If no USB is connected, nothing happens.
The files could be in a folder in the USB or it could be just in the root.
TV will autamtically reset after the files are copied from USB to TV. It is required because of existing power-off requirement.
 Note : For Clone function USB stick (Copy to USB – Copy from USB) must be formatted to FAT32. If USB is not formatted to FAT32 the other TVs will not accept cloned data and performance issues will result.
USB Option
If this option is set as “ON”, TV will go on normal operation.  If it is set as “5V”, TV can not use USB and MediaBrowser but USB port will have a voltage of 5 Volts and any device plugged can be charged. HOTEL MODE should be enabled for “5V” feature.  It is set as “OFF”, then USB ports will be disabled and power will be cut on USB ports. To be able to use this feature,
- “USBPowerOff” option has to be set as enabled from profile (hwprofile > USBPorts/USBPowerOff). OR - HOTEL MODE should be enabled.
Fixed Pic. Mode
If OFF is selected TV will go on normal operation. If It is ON Main menu/Picture quick menu/mode and quick menu/picture zoom will be inaccessible.
Digital Tuner
If ON is selected TV will go on normal operation. If It is OFF TV will display “no signal” message when tuned to digital channels existing in active channel list, and digital channels will not be detected in auto or manual searches.
Multiple RC Support
If OFF is selected TV will go on normal operation. If It is ON RCU type (system code) that is chosen in “RCU program menu” will be used. “RCU program menu” can be opened by RETURN-1-2-3-4 shortcut. The multiple RC supports works on RC5 type of remote controllers. To active this feature, the hotel mode should be active and from the hotel mode configuration menu, Multiple RC support should be set as ON. A stand by cycle is necessary after programming the RCU, in order for this feature to work correctly.
RC key > 1
System Code > 1
Welcome message
Welcome message option is only visible at the hotel configuration menu when it is enabled from the profile option. If this option is inactivated, no welcome message does do occurs at the TV power on term.
When the welcome message option is visible, it provides disables or enables the message screen according to customer desire.  As default behavior a welcome message image will be displayed (if hotel mode is enabled). The image will stay on screen until user presses a key.  On the bottom side of image there is an message (osd message) displaying “press any key”. This message is only visible when the customer sets via profile manager as Toshiba or Sharp, or if the software’s which uses Toshiba UI. For the other customers and ui options that warning is invisible.
Welcome image can be changed through USB (described in “copy from USB” section). A default welcome image is available.  Welcome images must be PNG files with 960x540 resolution and 16 bit color depth.  Welcome image file sizes must not exceed 150KB (153600 Bytes) for 8+2MB TVs Welcome image file sizes must not exceed 1000 KB (1024000 Bytes) for 8+4MB TVs. If 1000 KB limit is wanted to be active, then profile option Enhanced Logo should be enabled or Satellite should be enabled.
Copy service list to USB
This button is only visible at the hotel configuration menu if it was enabled from the profile option.  When this button is pressed all the services tuning information (program number, name, frequency...) are written to an xml file. Then this file (service_list.xml) is copied to root of usb.  Meanwhile a “Please wait” dialog is displayed. The file cen be edited by supplied “AutoChannelConfigurator” tool.
Copy service list from USB
This button is only visible at the hotel configuration menu if it was enabled from the profile option.  When this button is pressed the TV will look for a service_list.xml file in the to root of usb. If the file is available the services in the file will be added. Meanwhile a “Please wait” dialog is displayed.
P.S. Help about “AutoChannelConfigurator” tool is available in it.
Signal Lost (no signal) message
As default behavior, if there is no signal the same welcome image is displayed. This time osd message is “no signal”.
Internal Clock
If hotel mode is active a new function (add wake up timer) will be available in Settings/Timers menu.  That function will open a new menu to set wake up time. After timer is saved tv can wake up automatically on desired time.  If alarm option was selected as “on” after wake up tv will show welcome image and an alarm will be heared. Then any key will stop alarm and welcome image.  If alarm option was selected as “off” after wake up tv will not show welcome image and the alarm will not be activated.
There is a “wakeup time channel” option in hotel mode menu, Its used to set the channel, whose time information to be used for wakeup timer. If this option is “0” time information of the channel which is being watched when timer menu is opened, will be used. Otherwise a “please wait” message will be displayed before the menu is open and during “please wait” time information of the channel will be get.  (This can take up to 30s). The “wakeup time channel” should be a digital service
Pin8
If ON is selected Pin8 will go on normal operation , and it is going to switch between sources automatically. If It is OFF ,Pin8 ignored , and the automatic source switching would be enabled. This functions DISABLED/ENABLED value does not effect the profile Pin8Standby option (which can be disabled or enabled via profile manager).
Attention: It has no connection by the profile Pin8Standby option whose function is automatic standby waking up. Also profile Pin8 DISABLED/ENABLED value does not effect this option.
EPG Enable/Disable
If hotel mode is active and this item is set as “Enabled” EPG button will work to access EPG menus. If it is set to “Disabled”, EPG menus will not be accessible.
NIT Update
This option enables or disables NIT update mechanism of the TV if Hotel Mode is enabled in the Hotel Menu Dialog.
Furthermore, if TerrestrialCableCombinedSearch is selected as ENABLED and CustomChannelList is selected as Single List in the profile, then the user will be able to see the following selection before starting auto search:
Aerial & Cable Search
If the user performs an auto search with Aerial & Cable Search selection, then TV will not update NIT. If the user performs an auto search with other selections, then TV will update NIT just like a regular DVB TV.
Posted By: FRANK at 06:30
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