夏普2658出现U2-91
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夏普2658打印有黑条 mn23941ad4 2021/11/7 苏州夏普2658维修服务中心电话0512-696l6769 Code U2-91
Description Memory check sum error (PCU)
PCU memory check sum error
Causes EEPROM trouble EEPROM is not initialized. PCU PWB EEPROM access circuit trouble Uninitialized EEPROM installed.
Remedy Check that EEPROM is properly inserted. Save the counter/adjustment values with the DIAG simulation. Use DIAG (SIM16) to cancel U2 trouble. Replace the Controller PWB.
Checked the EEPROM Chip,or main board might need to have tech come out o re-flash the software.
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