Samsung NT-R70xxxx Series, Service Manual

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4- 3
4.
Troubleshooting
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Speaker sound is OK?
Check speaker
connection and
speaker cable
Check driver status.
Solution : Replace the defected part or revise the connectivity.
Change Mainboard
and check it.
Headphone,
MIC Jack
function is OK?
Check driver setting
Change Mainboard
and check it.
Internal MIC
function is OK?
Change Mainboard
and check it.
System USB
Port function
is OK?
Solution : Replace the defected part or revise the connectivity.
Change Mainboard
and check it.
PCMCIA
function is OK?
Check driver setting.
Check PCMCIA
frame
Change Mainboard and
check it.
6 in1 card
function is OK?
Check driver
Solution : Replace the defected part or revise the connectivity.
Change Mainboard
and check it.
LAN function
is OK?
Check driver setting
Change Mainboard
and check it.
It is
problem.
NO
YES
No
problem
No
problem
It is
problem.
It is
problem.
No
problem
NO
NO
NO
YES
YES
YES
NO
No
problem
No
problem
It is
problem.
It is
problem.
No
problem
NO
YES
YES
NO
No
problem
It is
problem.
It is
problem.
YES
Solution : Replace the defected part or revise the connectivity.
Check Internal MIC unit Check driver setting
NO
No
problem
No
problem