IBM 4247-003 Maintenance Manual - Page 236
See Coax Attachment Card - Models 001, and 002 on, and 002
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Table 28. T&D Error Messages and Actions (continued) Error Message Description Action TD 30 FRU 7 30 TD (***) FRU 7 30 Attachment Card-to-Logic Board Communication Failure Related to error 203 1. Verify that the card or cable is securely plugged. 2. Replace the attachment card. See "Coax Attachment Card - Models 001, and 002" on page 392. For Model 003, see "Model 003 Attachment Cards: Serial, Twinax, LAN, Coax" on page 359. See "Twinax Attachment Card - Models 001, and 002" on page 396. For Model 003, see "Model 003 Attachment Cards: Serial, Twinax, LAN, Coax" on page 359. 3. Replace the interposer connector (Model 003), see Attachment Card Guide Assembly with the Interposer Connector (Model 003). 4. Replace the logic board. See "Logic Board - Models 001 and 002" on page 378. For Model 003, see "Logic Board - Model 003" on page 366. TD 31 FRU 7 31 Attachment Card CPU Failure Replace the attachment card. See "Coax Attachment Card - Models 001, and 002" on page 392. For Model 003, see "Model 003 Attachment Cards: Serial, Twinax, LAN, Coax" on page 359. See "Twinax Attachment Card - Models 001, and 002" on page 396. For Model 003, see "Model 003 Attachment Cards: Serial, Twinax, LAN, Coax" on page 359. Chapter 2. Diagnostics 236
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