Tatung V23CLTT, Service Manual

Page: 20 / 63

8.
Troubleshooting Flow Chart
3~5V
Measure of I029
volt
No
Yes
否
0~0.5V
Replace I029
Yes
No
No picture
No picture
Clean
EEPROM
Picture
appears
Replace I012(MCU)
Fix at
factory
No picture
Yes
Restart and check
sources are
connected
discharge white
connector, then measure
voltage again
Check if inverter is
connected correctly.
Yes
No
Panel wire (P005) is
connected correctly?
Re-
charge
No
否
否
Yes
Yes
Yes
Does the LED
light up
？
Is LED display
Amber
？
Restart signal to
ensure H. V.
sync are not
absent
End
Is
it entering into
power saving on pc
mode?
No
Picture
appears
Picture
appears
Replace Main Board
PWB-0610
No
No
No
Yes
Re-ch
arge
No picture
No picture
No picture
No picture
Re-ch
arge
No
Yes Yes
Picture
appears
No
Yes
Is the Voltage at
L067 5V
？
No
No picture
No picture
Picture
appear
No picture
Replace Inverter,
test again.
Measure white connectors
of 2 sides pin voltage that
are at 3V and 24V
White connector of
power Module (8p
or 12p) is connected
correctly?
Check if panel
light works?
Re-ch
arge
No picture Appear
Picture
appears
Picture
appears
Picture
appears
Picture
appears
Replace Power
Module, test
again.
Clean
EEPROM
Picture
appears
（
1
）
Power Start NG