{"id":10439,"date":"2019-07-09T13:59:08","date_gmt":"2019-07-09T13:59:08","guid":{"rendered":"http:\/\/localhost\/bizhubtroubleshooter\/?post_type=epkb_post_type_1&p=10439"},"modified":"2023-12-21T14:42:05","modified_gmt":"2023-12-21T14:42:05","slug":"c4002-bizhub-754e-654e","status":"publish","type":"epkb_post_type_1","link":"https:\/\/apps.kmbizhubvcare.com\/bizhubtroubleshooter\/?epkb_post_type_1=c4002-bizhub-754e-654e","title":{"rendered":"C4002 (bizhub 754e\/654e)"},"content":{"rendered":"\n

Contents <\/p>\n\n\n\n
\nTrouble type<\/td>\nPH communication error<\/td><\/tr>
\nTrouble code<\/td>\nC4002<\/td><\/tr>
\nRank<\/td>\nC<\/td><\/tr>
\nDetection timing<\/td>\nWhen the PH relay board (PHRYB) is receiving data, a \ncommunication error is detected.<\/td><\/tr>
\nTrouble isolation<\/td>\n–<\/td><\/tr>
\nRelevant electrical parts<\/td> \u2022 PH relay board (PHRYB)
\u2022 Printer control board (PRCB) <\/td><\/tr><\/tbody><\/table>\n\n\n\n

\n \n(2)Procedure\n\n\n\n\n<\/p>\n\n\n\n
\nStep<\/td>\nAction<\/td>\nControl signal<\/td>\nLocation of electrical \ncomponents<\/td><\/tr><\/thead>
\n1<\/td>\nTurn OFF the main power switch, disconnect and then \nconnect the power cord. Wait for 10 sec. or more after connect the power cord, \nand turn ON the main power switch.<\/td>\n–<\/td>\n–<\/td><\/tr>
\n2<\/td>\nPRCB ICP17 conduction check<\/td>\n–<\/td>\n–<\/td><\/tr>
\n3<\/td> Replace PRCBPRCB (Part# A55VH00105)<\/td>\n–<\/td>\n–<\/td><\/tr>
\n4<\/td>\nPHRYB ICP2 conduction check<\/td>\n–<\/td>\n–<\/td><\/tr>
\n5<\/td> Replace PHRYBPHRYB (Part# A55VH00300)<\/td>\n–<\/td>\n–<\/td><\/tr><\/tbody><\/table>\n\n\n\n