Hisense HK950, Service Manual, Page: 15 / 18

HK950 Service Manual
Remove all the peripheral components and host hardware remaining power supply
、
Mainboard
、
cpu these three
components
，
plug in and observe if it works normally, if there is no faults we can install other parts step by step until
the whole machine cannot work normally, find out the error part and repair it.
5
）
heating and cooling method
Use finger to touch the heating part and observe if there is overheating; cool the abnormally heating part with an
absorbent cotton swab containing absolute ethanol, if the failure eliminates, it can proves that the failure is caused by
the overheating stability.
4.4 Common Troubleshooting
1
）
common error message tips and solutions when the boot
Error prompt
Cause Solution
BIOS ROM checksum error:
System halted BIOS ROM program data has
been changed or BIOS chip is
damaged 1) Restart the computer into the BIOS and load
the default settings
2) Remove the CMOS battery for about 10
seconds, discharge the CMOS, and then enter
the BIOS to load the default settings
CMOS battery failed or
CMOS battery state low CMOS battery power shortage Replace a new CMOS battery
CMOS checksum
error-Defaults loaded CMOS battery power shortage,
or may be caused by CIH virus
problems 1) enter into the BIOS to load the default
settings, 2) for the CMOS battery discharge, and
then load the BIOS default settings, 3) try
another CMOS battery
CMOS System Options Not
Set The data stored in the CMOS is
corrupted or does not exist Load BIOS default settings
Press F1 to continue Del to
setup BIOS settings problems, it may
be a hardware installation
problems, such as hard disk
installation is not correct 1) load the BIOS default settings; 2) or check
the hardware whether has problem
Memory Test Fail Memory installation is not
strong or damaged, it may not
memory compatibility, or BIOS
and memory-related settings are
not appropriate, such as memory
frequency and actual value does
not match 1) first load the BIOS default settings try, 2)
re-insert the memory or replace the new
memory to try
Keyboard Error Keyboard damage or poor
connection status Check whether the keyboard is plugged well or
the keyboard interface is good
Hard disk Install Failure HDD port bad connection or
HDD damaged Check whether the hard disk interface is
connected properly, replace the new hard drive
to test
HDD controller Failure HDD port not good Check whether the hard disk interface is
connected properly
Hard disk(s) diagnosis fail HDD damaged Connect the hard disk to another device to
check for proper operation
Primary master hard disk fail HDD fault 1) Load the BIOS default settings to try
2) Check the hard disk interface status is good
C drive error The BIOS does not receive a
signal from the hard disk C 1) Check the hard disk interface is correct
2) load the BIOS default settings to try
Override enable-defaults BIOS settings are not suitable 1) Load the BIOS default settings to try