15
TPS 1.0L LA
3.No picture/LED is green
Check
scaler board U102
pin1=14V,pin4=1.22V,
pin7=16V,pin8
=5V
No
Check power
Yes
Check if
working voltage
U152,pin2=3.3V
pin3=5V
No
Check circuit around
each regulator and
eliminate short and
open situation
Yes
Check if clock
source X350
Replace X350
No
Yes
Check if
RGB,clk,H/V and
DE signal output 128
bits TTL
No
Try to replace
flash Rom
EEPROM
Check
resistors-network
No
Replace bad resistors-
network
Yes
Yes
Replace LVDS cable
5. Service Modes, Error Codes and Fault Finding
Содержание 19PFL4322
Страница 7: ...7 TPS 1 0E LA 3 Directions for Use 3 Directions for Use Refer to page 6 ...
Страница 36: ...36 TPS 1 0L LA 7 Circuit Diagrams and PWB Layouts Scaler Board Layout Top Side Part 1 ...
Страница 37: ...37 TPS 1 0L LA 7 Circuit Diagrams and PWB Layouts Scaler Board Layout Top Side Part 2 ...
Страница 38: ...38 TPS 1 0L LA 7 Circuit Diagrams and PWB Layouts Scaler Board Layout Top Side Part 3 ...
Страница 39: ...39 TPS 1 0L LA 7 Circuit Diagrams and PWB Layouts Scaler Board Layout Top Side Part 4 ...
Страница 40: ...40 TPS 1 0L LA 7 Circuit Diagrams and PWB Layouts Scaler Board Layout Bottom Side ...
Страница 41: ...41 TPS 1 0L LA 7 Circuit Diagrams and PWB Layouts Scaler Board Layout Bottom Side of part 1 ...
Страница 42: ...42 TPS 1 0L LA 7 Circuit Diagrams and PWB Layouts Scaler Board Layout Bottom Side of part 2 ...
Страница 43: ...43 TPS 1 0L LA 7 Circuit Diagrams and PWB Layouts Scaler Board Layout Bottom Side of part 3 ...
Страница 44: ...44 TPS 1 0L LA 7 Circuit Diagrams and PWB Layouts Scaler Board Layout Bottom Side of part 4 ...
Страница 57: ...57 TPS 1 0L LA 7 Circuit Diagrams and PWB Layouts IR Board Layout Bottom Side ...
Страница 72: ...72 TPS 1 0L LA 9 Circuit Descriptions Abbreviations List and IC Data Sheets PIN Assignments ...
Страница 74: ...74 TPS 1 0L LA 9 Circuit Descriptions Abbreviations List and IC Data Sheets Pin assignments ...