{"id":26533,"date":"2025-06-12T14:16:06","date_gmt":"2025-06-12T14:16:06","guid":{"rendered":"https:\/\/apps.kmbizhubvcare.com\/bizhubtroubleshooter\/?post_type=epkb_post_type_1&p=26533"},"modified":"2025-06-12T14:16:12","modified_gmt":"2025-06-12T14:16:12","slug":"cd701-cd702-cd703-c4751i","status":"publish","type":"epkb_post_type_1","link":"https:\/\/apps.kmbizhubvcare.com\/bizhubtroubleshooter\/?epkb_post_type_1=cd701-cd702-cd703-c4751i","title":{"rendered":"CD701, CD702, CD703 (C4751i)"},"content":{"rendered":"\n

Contents<\/h2>\n\n\n\n
Trouble type<\/td>CD701: Mechanical controller flash ROM writing errorCD702: Mechanical controller flash ROM device errorCD703: FW download communication fault<\/td><\/tr>
Rank<\/td>C<\/td><\/tr>
Trouble detection condition<\/td>CD701: A mechanical controller flash ROM writing sequence is interrupted in its mid-operation due to, for example, power being shut off.<\/td><\/tr>
CD702: An erase error or other device fault occurs during mechanical controller flash ROM writing.<\/td><\/tr>
CD703:Irregular data is received during FW downloading.Places are changed in the order of write completion pulses.A write completion pulse is received for a memory for which binary writing is not permitted.Final checksum mismatch in FW downloadTwo-minute timeout (no response from CTL, the number of transfer data items less than the specified)<\/td><\/tr>
Trouble isolation<\/td>–<\/td><\/tr>
Relevant electrical parts<\/td>CPU board (CPUB)Base board (BASEB)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Procedure<\/h2>\n\n\n\n
    \n
  1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch.<\/li>\n\n\n\n
  2. Check CPUB for proper installation and correct as necessary.<\/li>\n\n\n\n
  3. Rewrite the firmware.<\/li>\n\n\n\n
  4. Replace CPUB.<\/a><\/li>\n\n\n\n
  5. Replace BASEB.<\/a><\/li>\n<\/ol>\n\n\n\n

    (Link to the Field Service Manual)<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

    Contents Trouble type CD701: Mechanical controller flash ROM writing errorCD702: Mechanical controller flash ROM device errorCD703: FW download communication fault Rank C Trouble detection condition CD701: A mechanical controller flash ROM writing sequence is interrupted in its mid-operation due to, for example, power being shut off. CD702: An erase error or other device fault occurs … <\/p>\n

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