Panasonic LCD-2016

Troubleshooting for No Picture and No OSD (Power LED is lit = No blinking)
Refer to the block diagram “Troubleshooting for LED Blinking (1 time blink )”
Patterns are
Try the “
LCD Panel
Test Mode”
No Picture
Is the power LED situation
changed after pushing the
button for entering Test
Mode?
displayed
Replace A board
LED blink (except TC- model)
LED off (TC- model)
Check if the Backlight is lit. No lit
(open the back cover and
check from back side)
Check if voltage 24V/32V(*)
at SRV-LED in P board
No
Replace P board
No change
(LED keep lit)
Replace A board
If entering the test mode,
Lit
Confirm(Clean) the flat
cable connection
(between A board and T-CON
board of LCD Panel)
Disconnect A15/16/19
connecter(FFC cable to
Panel). Check if voltage
SRV-12V (PNL12V) in A
board
Yes
No
Yes
24V/32V(*)
Replace LCD Panel
(Backlight part)
A
A02
LCD Module
T-CON
A19 1-4
IC5300
12V PNL12V
SRV-12V
the Power LED will Blink(except TC- model)
or OFF (TC- model).
(12V) Replace A board
Replace LCD Panel
(T-CON part)
1
3
5
Panel_VCC_ON2
IC8000
(*) The DC level is different by the LCD panel.
48