Panasonic Toughbook CF-18KHH65LH Service Manual

Also see for Toughbook CF-18 Series: Precautions for Installing Precautions for Installing Operating instructions Supplementary instructions Supplementary instructions

Contents

5.5 . Error Messages and TroubleshootingTest classification Screen display test items Contents1 A20 GATE TEST Address 20 line2 CACHE ON/OFF Cache memory on/off3 NPU OPERAND TEST Floating point processor function4 RAM (Memory related) RAM STANDARD Memory standard5 DMA PAGE REG TEST DMA page register6 DMA REGISTER TEST DAM register7 DMAC Transfer TEST DAM transfer test8 PIC HALT INSTRUCTION TEST Interrupt 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 KEYBOARD REG TEST Keyboard17 PS/2 MOUSE REG Mouse18 SERIAL WRAP TEST Serial loop back (jig required)19 SERIAL ALL INTERNAL TEST Serial port20 PARALLEL REGISTER R/W Parallel registerPCIC ALL TEST PCICCard Bus REG Card Bus portUSB REG USB port22 VGA ALL TEST VGA23 SVGA RAM TEST SVGA RAM24 VESA MODE TEST VESA mode25 FD WT/RD/WP TEST FD write/read/write protection26 HDD ALL TEST Only HDD lead selected27 ECP REGISTER R/W Parallel port28 EPP REGISTER R/W Parallel port29 EXT. CMOS R/W TEST Extension CMOS R/W testCOMMUNICATIONIO(Input-output)CONTROL(Control ICs on themain board, etc.)The 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.CPU(CPU related)21AUX(Auxiliary functions)DISK(FDD, HDD)UNIQUE(Individual functions)VIDEO(Display related)5-6