Dell E173FPc
45
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”
Check
Correspondent
component
short/open
(Protection Diode)
OK
Measured CN104 pin1 = 3.3 V?
Measured CN104 pin 2= 5V?
Check Power board; is there DC level output?
Check U105 pin2=3.3V, U106 pin2=1.8V?
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?
NG
OK, Wire tight enough
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 E173FPc
Page 17: ...Dell E173FPc 17 Display Characteristics For CPT panel ...
Page 19: ...Dell E173FPc 19 For Hydis panel ...
Page 20: ...Dell E173FPc 20 For CPT panel ...
Page 21: ...Dell E173FPc 21 5 Block Diagram 5 1 Exploded View ...
Page 24: ...Dell E173FPc 24 5 3 Electrical Block Diagram 5 3 1 Main Board ...
Page 36: ...Dell E173FPc 36 7 2 PWPC Board ...
Page 37: ...Dell E173FPc 37 ...
Page 38: ...Dell E173FPc 38 8 PCB Layout 8 1 Main Board ...
Page 39: ...Dell E173FPc 39 ...
Page 40: ...Dell E173FPc 40 ...
Page 41: ...Dell E173FPc 41 8 2 PWPC Board ...
Page 42: ...Dell E173FPc 42 ...
Page 43: ...Dell E173FPc 43 ...
Page 53: ...Dell E173FPc 53 b Click the Select Chip button and choose the type you are going to program ...
Page 55: ...Dell E173FPc 55 d Select the communication Setting Port Name e Click the ConNect button ...
Page 70: ...Dell E173FPc 70 15 2 HT17E13 100 ...
Page 71: ...Dell E173FPc 71 15 3 CLAA170EA 07 ...
Page 72: ...Dell E173FPc 72 ...