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Matsushita CF-W4HWEZZBM User Manual

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5.5. Error Messages and Troubleshooting
Test classification
Screen display test items
Contents
Possible damaged or faulty part
1
A20 GATE TEST
Address 20 line
2
CACHE ON/OFF TEST
Cache memory on/off
3
NPU OPERAND TEST
Floating point processor function
4
RAM
(Memory related)
RAM STANDARD
Memory standard
Main board
5
DMA PAGE REG TEST
DMA page register
6
DMA REGISTER TEST
DAM register
7
DMAC Transfer TEST
DAM 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
RTC 12/24 HOUR TEST
Real time clock test
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
KEYBOARD REG. TEST
Keyboard
Main board
17
PS/2 MOUSE REG.
Mouse
Main board
18
SERIAL WRAP TEST
Serial loop back (jig required)
19
SERIAL ALL INTERNAL TEST Serial port
20
PARALLEL REGISTER R/W
Parallel register
PCIC ALL TEST
PCIC
Main board
Card Bus REG
Card Bus port
Main board
USB REG
USB port
Main board
22
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
FD WT/RD/WP TEST
FD write/read/write protection
FD, main board, cable
26
HDD ALL TEST
Only HDD lead selected
HDD, main board, cable, connector
27
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 R/W test
Main board
COMMUNICATION
Main board
DISK
(FDD/HDD)
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.
UNIQUE
(Individual
functions)
VIDEO
(Display related)
IO
(Input-output)
CONTROL
(Control ICs on the
main board, etc.)
CPU
(CPU related)
Main board
Main board
21
AUX
(Auxiliary functions)
30