Panasonic CF-07 Service Manual

Also see for CF-07 Series: Operating instructions Operating instructions Reference manual Reference manual Tips for use

Contents

5. Error Messages and TroubleshootingThe table below explains the parts that may be faulty or damaged should an error message occur while performing thevarious test items of the self diagnostics program.Test classification Screen display test items Contents Possible damaged or faulty part1 CPU(CPU related)A20 GATE TEST Address 20 line Main board2 CACHE ON/OFF Cache memory on/off3 NPU OPERAND TEST Floating point processor function4 RAM(Memory related)RAM STANDARD Memory standard Main board5 CONTROL(Control ICs on themain board, etc.)DMA PAGE REG TEST DMA page register Main board6 DMA REGISTER TEST DMA register7 DMAC Transfer TEST DMA transfer test8 PIC HALT INSTRUCTIONTESTInterrupt controller9 PIC REGISTER TEST Interrupt controller10 RTC CMOS RAM TEST Real time clock CMOS1112 SPEAKER TEST Speaker13 PIT CH0 TEST Interrupt timer CH014 PIT CH1 TEST Interrupt timer CH115 PIT CH2 TEST Interrupt timer CH216 I0(Input-output)KEYBOARD REG TEST Keyboard Main board17 PS/2 MOUSE REG Mouse Main board18 Communication SERIAL WRAP TEST Serial loop back (jig required) Main board19 SERIAL ALL INTERNALTESTSerial port Main board20 PARALLEL REGISTER R/W Parallel register Main board21 AUX(Auxiliaryfunctions)PCIC ALL TEST PCIC Main boardCard Bus REG Card Bus port Main boardUSB REG USB port Main board22 VIDEO(Display related)VGA ALL TEST VGA LCD, main board, cable23 SVGA RAM TEST SVGA RAM Main board24 VESA MODE TEST VESA mode LCD, main board, cable, connector25 DISK(FDD, HDD)FD WT/RD/WP TEST FD write/read/write protection FD, cable, main board26 HDD ALL TEST Only HDD lead selected HDD, main board, cable, connector27 UNIQUE(Individualfunctions)ECP REGISTER R/W Parallel port Main board, cable, connector28 EPP REGISTER R/W Parallel port Main board, cable, connector29 EXT. CMOS R/W TEST Extension CMOS Main board16-6