15
TPM1.0U LA
5. Service Modes, Error Codes and Fault Finding
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
Содержание 19PFL5402D/27
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Страница 88: ...PIN ASSIGNMENT MT5372 MT5371 9 Circuit Descriptions Abbreviations List and IC Data Sheets 86 TPM1 0U LA ...
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Страница 141: ...39 TPM1 0U LA 7 Circuit Diagrams and PWB Layouts Scaler Board Layout ...
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Страница 143: ...41 TPM1 0U LA 7 Circuit Diagrams and PWB Layouts Scaler Board Layout TOP RIGHT ...
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Страница 145: ...43 TPM1 0U LA 7 Circuit Diagrams and PWB Layouts Scaler Board Layout BUTTOM RIGHT ...
Страница 146: ...44 TPM1 0U LA 7 Circuit Diagrams and PWB Layouts Scaler Board Layout 2 ...
Страница 147: ...45 TPM1 0U LA 7 Circuit Diagrams and PWB Layouts Scaler Board Layout 2 TOP LEFT ...
Страница 148: ...46 TPM1 0U LA 7 Circuit Diagrams and PWB Layouts Scaler Board Layout 2 TOP RIGHT ...
Страница 149: ...47 TPM1 0U LA 7 Circuit Diagrams and PWB Layouts Scaler Board Layout 2 BUTTOM LEFT ...
Страница 150: ...48 TPM1 0U LA 7 Circuit Diagrams and PWB Layouts Scaler Board Layout 2 BUTTOM RIGHT ...
Страница 190: ...PIN ASSIGNMENT MT5372 MT5371 88 TPM1 0U LA 9 Circuit Descriptions Abbreviations List and IC Data Sheets ...
Страница 191: ...89 TPM1 0U LA 9 Circuit Descriptions Abbreviations List and IC Data Sheets ...