HT-CT290/CT291
19
SECTION 4
TROUBLESHOOTING
1. Protect Condition
All LED keeps blinking for 10 seconds after power on, after that, main unit will turn off.
Note: Please remove USB (pendrive) before troubleshooting.
2. The video of HDMI is not displayed during USB mode
All LED keeps blinking after turning
the power ON.
Yes
Check the speakers' resistance are short
ȍRURSHQf
Yes
Check MAIN board C3296 positive
terminal is 3.3V.
Yes
Replace MAIN board IC1001 and check
power ON LED blinking.
Yes
Replace complete MAIN board.
Yes
All LED no longer keeps blinking after
removing the speaker and turning the
power ON.
No No
Replace the speakers.
Replace MAIN board IC3207.
No
Replace MAIN board Q3204.
Yes
Check MAIN board IC3207 pin 1 is 12V.
Yes
No
No
No
Check MAIN board IC3200 pin 4 is 5V. Check MAIN board IC3200 pin 1 is 3.3V.
Replace complete MAIN board.
Refer to “Power is not turned on” on page
20.
No
Replace MAIN board D3200
Check MAIN board IC3200 pin 5 is
7.4V ~ 8V
Replace CN3001 in MAIN board.
* Replace complete MAIN board if there
is no facility to replace CN3001
Check MAIN board CN3001 is normal.
Yes Yes
Replace MAIN board IC3200.
Yes
To Next Page
Loading...
Need help?
General
