Panasonic SA-PM53E Service Manual page 18

SA-PM53E / SA-PM53EB / SA-PM53EG
8.1.3. EEPROM Checksum (ROM correction)
Purpose : To check for micro-processor firmware version & EEPROM check (ROM correction).
Below is the procedures for this mode.
Step 1: Enter into Doctor mode (For more information refer to section 8.1 on key operation to enter into this mode).
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