Tatung V32FLBB, Service Manual

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8.2 Flow Chart
:
( for Repair Center use )
(1) Power fair :
- 18 -
3~5V
Check
I12 #4
No
Yes
否
0~0.5V
Replace I12
Yes
No
No picture
No picture
Clear
EEPROM
Picture
appears
Replace
I34 (MCU)
Send to
factory
for repair.
No picture
Yes
Check if sources are
connected correctly.
Re-plug U901A to
connector CN3
(12P) , and then
check voltages again
Check if Inverter is
connected correctly.
Yes
No
Is panel wire P015A
connected with P15
correctly?
Re-
plug
No
否
否
Yes
Yes
Yes
Does the LED
light up
？
Does LED light
Amber
？
Restart signal to
ensure H. V. sync.
are not absent
End
Is
it entering screen
protection (or power
saving) on PC mode?
No
Picture
appears
Picture
appears
Replace Main
Board PWB-0713
No
No
No
Yes
Re-
plug
No picture
No
picture
No
picture
No
picture
Re-
plug
No
Yes
Yes
Picture
appears
No
Yes
Is the Voltage at
I12 #8 = 5V
？
No
No picture
No picture
Picture
appears
No picture
Replace Inverter.
Check connector CN3 (12P) and
Wire U901A : Red wire = 24V ,
Blue & White wires > 2.5V
Is connector CN3
(12P) on Power
Module connected
correctly?
Is Backlight
lit?
Re-
plug
No picture
Appears
Replace Power
Module (.PB01)
Picture
appears
Picture
appear
s
Picture
appear
s
Picture
appear
s
Picture
appear
s
Clear
EEPROM
End