Panasonic CF-07 Series, Service Manual

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5. Error Messages and Troubleshooting
The table below explains the parts that may be faulty or damaged should an error message occur while performing the
various test items of the self diagnostics program.
Test classification Screen display test items Contents Possible damaged or faulty part
1 CPU
(CPU related) A20 GATE TEST Address 20 line Main board
2 CACHE ON/OFF Cache memory on/off
3 NPU OPERAND TEST Floating point processor function
4 RAM
(Memory related) RAM STANDARD Memory standard Main board
5 CONTROL
(Control ICs on the
main board, etc.) DMA PAGE REG TEST DMA page register Main board
6 DMA REGISTER TEST DMA register
7 DMAC Transfer TEST DMA transfer test
8 PIC HALT INSTRUCTION
TEST
Interrupt controller
9 PIC REGISTER TEST Interrupt controller
10 RTC CMOS RAM TEST Real time clock CMOS
11
12
SPEAKER TEST Speaker
13 PIT CH0 TEST Interrupt timer CH0
14 PIT CH1 TEST Interrupt timer CH1
15 PIT CH2 TEST Interrupt timer CH2
16 I0
(Input-output) KEYBOARD REG TEST Keyboard Main board
17 PS/2 MOUSE REG Mouse Main board
18 Communication SERIAL WRAP TEST Serial loop back (jig required) Main board
19 SERIAL ALL INTERNAL
TEST Serial port Main board
20 PARALLEL REGISTER R/W Parallel register Main board
21 AUX
(Auxiliary
functions) PCIC ALL TEST PCIC Main board
Card Bus REG Card Bus port Main board
USB REG USB port Main board
22 VIDEO
(Display related) VGA ALL TEST VGA LCD, main board, cable
23 SVGA RAM TEST SVGA RAM Main board
24 VESA MODE TEST VESA mode LCD, main board, cable, connector
25 DISK
(FDD, HDD) FD WT/RD/WP TEST FD write/read/write protection FD, cable, main board
26 HDD ALL TEST Only HDD lead selected HDD, main board, cable, connector
27 UNIQUE
(Individual
functions) ECP REGISTER R/W Parallel port Main board, cable, connector
28 EPP REGISTER R/W Parallel port Main board, cable, connector
29 EXT. CMOS R/W TEST Extension CMOS Main board
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