Friday, August 31, 2012

TOSHIBA 22V506 MEMORY IC REPLACEMENT ADJUSTMENTS


WHEN REPLACING EEPROM (MEMORY) IC
Initial total of memory IC, Power On total hours and 'Micon' version can be checked on the screen.  Total hours are displayed in 16 system notation.
  1. Turn ON the Power and set to "All Mode".
  2. Set the "Volume" to minimum.
  3. Press Both 'Volume Down' on the TV set, and channel button  '8'  on the remote control for more than '2' seconds.
  4. After confirmation of each Check-sum, turn "Off' the Power.
NOTE:  The each item value might be different to each set:  See the display window.
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CHECKSUM:                     40D3  >>                                > Initial setting data Check su.
LCD PWR ON:                   0000   >>                                > Power On total hours  
SUB:                                    DA0E77Y221 >>                    > Sub-Micon Check version.
DTV:                                   VA07E84181 >>                     > Main Micom check version.
EEPROM:                          W50T01CM00 >>                  > EEPROM  check version.
PICTURE:                          dispSmartPic >>                     > parameter.
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CONFIRMATION OF INITIAL DATA
If a service repair is undertaken where it has been required to change the memory IC, the following steps should be taken to ensure the correct data settings while making reference to  Initial settings.  Initial data is attached.
  • Note:  If a service is undertaken where it has been required to change the memory IC, the following steps should be taken  to ensure correct data settings  while making reference to initial settings.
  • Turn On the Power, and set to 'All Mode".
  • Set the 'Volume' to minimum.
  • Press Both 'Volume Dn' button on the TV, and Channel button [6] on the remote control for more than 2 seconds.  
  • NB:  No need to set data other position than 7200 & 72FF]
  • Addresses now selected should blink.  Using the  'Up/Dn' button on the remote control, step through the addresses to be changed is reached.
  • Press Let/right button to select Data.  When data is selected, it should blink.
  • Again step through the data using 'Up/Dn' button until required data value has been selected.
  • Pressing "Right /Left" button will make you back to 'addresses' for further selection if necessary.
  • Repeat steps 4 to 6 until all data has been checked.
  • When satisfied correct data has been entered, turn the Power Off to finish the data input.  
  • [After the Data Input, set to initializing of Shipping]
  1. Turn On the Power.
  2. Set 'Volume' to minimum.
  3. Press Both "Volume Dn' button on the TV, and channel button [1]  on the remote control for more than 2 seconds.
  4. After finishing initilization of shipping, the unit will turn OFF automatically.
  5. The unit will now have the correct data value for the new memory IC.
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INIT:                              0001   0099
SUB:                               DA0E77Y221
DTV:                              CA07E84181
EEPROM:                     W50T01CM00
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