Ricoh A230, Руководство по обслуживанию, Страница: 917 / 1134

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A230/A231/A232 SM
4.2 BIT SWITCHES........................................................................................4-16
4.2.1 SYSTEM SWITCHES......................................................................4-16
4.2.2 SCANNER SWITCHES...................................................................4-30
4.2.3 PRINTER SWITCHES.....................................................................4-38
4.2.4 COMMUNICATION SWITCHES .....................................................4-44
4.2.5 G3 SWITCHES................................................................................4-52
4.3 NCU PARAMETERS................................................................................4-62
4.4 DEDICATED TRANSMISSION PARAMETERS ......................................4-73
4.4.1 PROGRAMMING PROCEDURE ....................................................4-73
4.4.2 PARAMETERS................................................................................4-74
4.5 SERVICE RAM ADDRESSES .................................................................4-78
4.6 SPECIAL TOOLS AND LUBRICANTS ....................................................4-91
5. REMOVAL AND REPLACEMENT ............................................... 5-1
5.1 PRECAUTION............................................................................................5-1
5.2 NCU AND SPEAKER .................................................................................5-1
5.3 FCU ............................................................................................................5-2
5.3.1 REMOVAL.........................................................................................5-2
5.3.2 SRAM DATA RESTORE FROM FCU ...............................................5-2
5.3.3 SRAM DATA RESTORE FROM FLASH CARD BACKUP................5-4
5.4 ROM UPDATE ...........................................................................................5-6
5.4.1 FCU ROM DOWNLOAD ...................................................................5-6
5.4.2 FCU ROM UPLOAD..........................................................................5-8
5.4.3 MODEM ROM DOWNLOAD .............................................................5-9
5.5 SRAM DATA BACKUP AND RESTORE .................................................5-11
5.5.1 SRAM BACKUP TO A FLASH MEMORY CARD............................5-11
5.5.2 SRAM RESTORE FROM A FLASH MEMORY CARD....................5-12
5.6 DATA ADDRESS RANGES ON THE CARD ...........................................5-13
5.6.1 FCU AND BICU ROM DATA...........................................................5-13
5.6.2 MODEM ROM AND SRAM DATA...................................................5-13
6. TROUBLESHOOTING.................................................................. 6-1
6.1 ERROR CODES.........................................................................................6-1
6.2 MODEM STATUS CODES IN V.34 PROTOCOL DUMP.........................6-10
6.2.1 CALLING SIDE................................................................................6-10
Phase 1 (V.8).......................................................................................6-10
Phase 2 (Line Probing)........................................................................6-10
Phase 3 (Equalizer Training) ...............................................................6-11
Phase 4 and 5 (Control Channel) ........................................................6-11
Phase 6 (Primary Channel) .................................................................6-11
Control Channel (Post Message - Sh).................................................6-12
Control Channel (Post Message – PPh)..............................................6-12
Control Channel Recovery (AC) ..........................................................6-13
V.34 End..............................................................................................6-13