15
TPM 2.0U LA
5. Service Modes, Error Codes and Fault Finding
5.3 Repair Flow Chart
1.No work/LED is off
Check if
power switch is
normal
No
Replace Power switch
Yes
Check
IR board CN001
pin1=0V,pin2=3.7V,
pin3=3V,pin4=2.85V
,pin5=5V,pin6
=3.3V
Check IR board
Yes
Check scaler board U102
pin1=14V,pin4=1.22V,
pin7=16V,pin8=5V,
No
2.No raster/picture too
dim
Check
Inverter board
CN852,pin1=16V,
pin5=0.9V,pin6
=3V
No
Check Scaler board
Yes
Check
Inverter board
U811 pin2=5V,Q821
pin=5,6=16V
Check U811,Q821
Yes
Check scaler board
No
Summary of Contents for 42PFL5432D/37
Page 38: ...38 TPM 2 0U LA 7 Circuit Diagrams and PWB Layouts Scaler Board Layout TOP LEFT ...
Page 39: ...39 TPM 2 0U LA 7 Circuit Diagrams and PWB Layouts Scaler Board Layout BUTTOM RIGHT ...
Page 40: ...40 TPM 2 0U LA 7 Circuit Diagrams and PWB Layouts Scaler Board Layout BUTTOM LEFT ...
Page 41: ...41 TPM 2 0U LA 7 Circuit Diagrams and PWB Layouts Scaler Board Layout BUTTOM RIGHT ...
Page 43: ...43 TPM 2 0U LA 7 Circuit Diagrams and PWB Layouts Scaler Board Layout TOP LEFT ...
Page 44: ...44 TPM 2 0U LA 7 Circuit Diagrams and PWB Layouts Scaler Board Layout 2 TOP RIGHT ...
Page 45: ...45 TPM 2 0U LA 7 Circuit Diagrams and PWB Layouts Scaler Board Layout 2 BUTTOM LEFT ...
Page 46: ...46 TPM 2 0U LA 7 Circuit Diagrams and PWB Layouts Scaler Board Layout 2 BUTTON RIGHT ...
Page 51: ...51 TPM 2 0U LA 7 Circuit Diagrams and PWB Layouts Power Board Layout 37 2 ...
Page 86: ...86 TPM 2 0U LA 9 Circuit Descriptions Abbreviations List and IC Data Sheets ...
