Panasonic CF-73ECLTXKM - Toughbook 73 - Pentium M 1.4..., Service Manual

Page: 19 / 118

No. Result
YES Software setting
NO Go to No.4-2
YES Speakers
NO Go to No.4-3
4-3 Replace the Main PCB. Main PCB
IC1000
IC1003
IC1004
5
Default configuration in
use
5-1 Check configuration. Configuration
6 Interrupt controller failure 6-1 Main PCB IC3
7 Timer failure 7-1 Main PCB
YES Go to No.8-2
NO Main PCB
IC3
IC2
YES Expansion card
NO Main PCB
9 Real Time Clock failure
9-1 Main PCB IC3
YES
Error during
SETUP
NO Go to No.10-2
YES Battery RTC battery
NO Main PCB IC3
11 Configuration error
11-1 Check configuration. Configuration
YES Go to No.12-2
NO Go to No.12-4
YES FDD
NO Go to No.12-3
YES HDD
NO Go to No.12-4
YES
Error during
SETUP
NO Main PCB
IC3
X2
YES
Error during
SETUP
NO Main PCB IC3
YES
Expansion RAM
card
NO Main PCB
IC2
IC4-11
YES Go to No.15-2
NO Main PCB IC2
YES Expansion card
NO Main PCB IC2
No.
Expansion card RAM
checksum error
Source of
problem
8
Check software setting.
Replace the Speakers.
Does operation return to
normal?
4-1
4-2
4 No Sound
Volume does not work.
Does the system return to
normal if the expansion card
is removed?
Replace the expansion card.
Does operation return to
normal?
Component
Troubleshooting
procedures
Symptom
Does resetting the date/time
in SETUP correct the
problem?
13-1
Were the correct settings
selected during SETUP?
Replace the FDD.
Does operation return to
normal?
12-2
12-1
CMOS Checksum error 12
12-3
Replace the HDD.
Does operation return to
normal?
12-4
Does resetting through
SETUP correct the problem?
10
Replace the battery.
Does operation return to
normal?
8-2
8-1
Does resetting through
SETUP correct the problem?
10-1
10-2
Dead RTC Battery
Real Time Clock is not
updating 13
14 Memory size/data error
14-1
Replace the expansion RAM
card.
Does operation return to
normal? (Go to "NO" if not
connected.)
15 PCI failure
Does the system return to
normal if the expansion card
is removed?
Replace the expansion card.
Does operation return to
normal?
15-1
15-2
16