Panasonic OLED-201806, Technical Manual

Page: 67 / 87

Lit
(sound is OK)
No change
(LED keep lit)
LED blink (except TC- model)
LED off (TC- model)
Try the “ LCD Panel
Test Mode”
(refer to P.19)
Check if the Backlight is lit.
(open the back cover and
check from back side)
No lit
(no TV
sound)
Disconnect A15or16or19
connecter(FFC cable to
Panel). Check if voltage
SRV-12V (PNL12V) in A
board
No
Yes
(12V)
Check if voltage VLED (*)
at SRV-LED in P board
Yes
No
Replace P board
Replace LCD Panel
(Backlight part)
Replace A board
Replace A board
Replace A board
Replace LCD Panel
(T-CON part)
Is the power LED situation
changed after pushing the
button for entering Test
Mode?
If entering the test mode,
the Power LED will Blink(except TC- model)
or OFF (TC- model).
Patterns are
displayed
No Picture
(*) The voltage of VLED is different by the LCD panel.
67
Troubleshooting for No Picture and No OSD (Power LED is lit = No blinking)
Refer to the block diagram of “Troubleshooting for LED Blinking (1 time blink )” page
Confirm(Clean) the flat
cable connection
(between A board and T-CON
board of LCD Panel)
LCD Module
A
IC8000
F
15
V
12V
IC5260
A02
1
2
3
4
SRV-12V
A16
44-51
PNL12V
T-CON
Panel_VCC_ON
Ex. FX600* series
Or sound check with TV mode
< F4/FS/FX series >
No
Picture
Green LED