DELL E153FPTc
39
9.2 Trouble shooting
9.2.1 Main Board
No Screen
Note:
1. If replace “
Main-Board
”, Please re-do “DDC-content” programmed & “White-Balance”.
2. If replace “
Power Board
” only, Please re-do “ White-Balance”
OK
Measured CN104 pin5 = 5 V?
Measured U101 pin 44= 5V?
Measured U1
5 pin 2= 3.3V?
Check Power board; is there DC level output?
Check U105 pin3=5V, U105 pin2=3.3V?
Is there any shortage or cold solder?
OK
Disconnected the Signal cable (Loose the
Signal cable), Is the screen show Block
WRGB color bars?
Connected the Signal cable again,
check LED status.
Green
Replace U102
Scalar IC
NG
Connected the Signal
cable again Check LED
status.
Check Power switch is in Power-on
status, and check if Power switch had
been stuck?
Orange
OK, Keyboard no stuck
Orange
Green
Check the Wire-Harness from CN103
Measured RGB (R101, R104,
R105) H/V Input at U102 pin
95,96, Was there have signal?
Check
Correspondent
component
short/open
(Protection Diode)
NG
OK, Wire tight
enoug
Lamp
Check
Panel-Power Circuit
Block
OK, Panel Power OK
Check
U102 Data-output
Block
Replace
Inverter board
and Check
Inverter
control relative circuit
Re-do White balance adjust
Measured Crystal
X101
OK
Replace
U102 (ZAN3XL)
OK
OK, U102 data OK
NG
OK
Summary of Contents for E153FPTc
Page 14: ...14 4 4 Panel Specification 4 4 1 Display Characteristics For HSD panel For CPT panel ...
Page 16: ...16 For CPT panel ...
Page 18: ...18 5 Block Diagram 5 1 Exploded View ...
Page 21: ...21 5 3 Electrical Block Diagram 5 3 1 Main Board ...
Page 27: ...27 The end The angle between CCFL line and vertical direction should be 30 40 degree ...
Page 33: ...DELL E153FPTc 33 7 2 Power Board ...
Page 34: ...DELL E153FPTc 34 ...
Page 35: ...DELL E153FPTc 35 8 PCB Layout 8 1 Main Board ...
Page 36: ...DELL E153FPTc 36 8 2 Inverter Power Board ...
Page 37: ...DELL E153FPTc 37 ...
Page 48: ...DELL E153FPTc 48 b Click the Select Chip button and choose the type you are going to program ...
Page 50: ...DELL E153FPTc 50 d Select the communication Setting Port Name e Click the ConNect button ...
Page 67: ...DELL E153FPTc 67 15 Definition Of Pixel Defects 15 1 CLAA150XP 01 ...