20
TH-152UX1 / TH-152UX1W / TH-152UX1C
7.1.3. Failure without Power LED Blinking
Symptom Possible cause (1st priority) Possible cause (2nd) Possible cause (3rd) Remarks
Black out, Can not operate,
without Green on Power LED
No clicking sound of relays.
P/P5 boards DU baord Connection DU-P, DU-
P5
Abnormal Main-STV5V
Black out, Can not operate, with Green
on Power LED
DU/D1/D2/D3/D4 boards Connection D21( D3
board) - DSS1
All connection between
DU/D1/D2/D3/D4
boards
DU baord Communication Error
between D boards
Black out at 1/4 screen Connection D3-D1, D3-D2, D3-
D4
Related Power board Related C board ----
Black out at 1/8 screen Connection between each C
board
(If the black part is drived by
CA,CD,CE,CH,CJ,CM,CN or
CR.)
Related C board Related D1, D2, D3 or
D4 board
----
Black out at width drived by each C
board
Related C board Connection for Related
C board
Related D board ----
Intermittent clicking of main relay (No
LED lights)
DU board P/P5 boards ---- ----
Black out at width drived by Data Driver Connection between Data
Driver and C board
Related C board Connection between
related C and D board.
----
All white scree Connection of 8 pcs of LVDS
cable between FRONT END
and D baord
---- ---- ----