Samsung HPT5054X/XAA Service Manual page 31

Plasma display tv
Hide thumbs Also See for HPT5054X/XAA:
Table of Contents

Advertisement

Troubleshooting
No Picture (When audio is normal)
"
"
Symptom
- Audio is normal but no picture is displayed on the screen.
- This may happen when the Main Board is functioning but the X, Y Main Board, Logic Board, or Y Buffer
Boards are not.
Major Checklist
- The output voltage of the Main SMPS.
- This may happen when the LVDS cable connecting the Main Board and the Logic Board is disconnected.
Troubleshooting
Procedures
When separating and connecting the cables such as CN810, CN809, CN808, CN807 of the Main SMPS, CN4701
Caution
of the X Main Board, and CN5707 of the Y Main Board, a spark may be generated by the electric charge of the
high capacity capacitor. Therefore, wait some time after disconnecting the power cord from the unit.
4-4
Are the Vs and Va voltages normal after
removing all cables from the SMPS?
(CN810, CN809, CN808, CN807)
Yes
Did problem improve?
Yes
Did problem improve?
Yes
Did problem improve?
Yes
Did problem improve?
CN810
CN809
CN808
CN807
No
Replace the SMPS
No
Replace the Y Main Board
No
Replace the X Main Board
No
Replace the Logic Board
No
Replace the Y Scan Board
Samsung Electronics

Hide quick links:

Advertisement

Table of Contents
loading

This manual is also suitable for:

Hpt4254x/xaaHpt4264xHpt4264xaaHp-t4254Hp-t5054

Table of Contents