TX-40CS620E, TX-40CSR620, TX-40CSR625 - Panasonic TV Service Manual (repair manual). Page 13

1. eMMc Memory(IC8903) for spare parts has the seed of KEY for each. 
2. The final KEY data will be generated by LD6 IC (IC8000) when SELF CHECK was done and are stored in both  
    LD6 IC (IC8000) and  eMMc (IC8903). 
    All KEYs are not generated for all models. 
    The necessary KEY are only generated and stored depend on the feature of models. 
 

When LD6 IC (IC8000) is replaced, eMMc (IC8903) should be also replaced with new one the same time. 
When eMMc Memory(IC8903) is replaced, LD6 IC (IC8000) is not necessary to be replaced the same time. 
After the replacement of IC, SELF CHECK should be done to generate the final KEY data. 
How to SELF CHECK: While pressing [VOLUME ( - )] button on the main unit, press the MENU button on the remote 
control for more than 3 seconds. 
TV will be forced to the factory shipment setting after this SELF CHECK. 

PLUS  DIMORA 

TX-40CS620E Yes  None  Yes 

Yes 

Yes 

Yes 

None 

TX-40CSR620 None  None  Yes Yes  Yes  Yes  None 
TX-40CSR625 None  None  Yes Yes  Yes  Yes  None