53
Black
Screen
B/L normal, only
Black screen
display
FIIcker Crosstalk
LCD Vcom imbalance
Abnormal
Color
Only color
abnormal
Capacitance improper bring crosstalk inside LCD
panel
Abnormal
Color
Only color
abnormal
1. Chip lose action
2. IC short or joint bad
3. Panel and VSC connect bad
Failure Mode
Part Name Description
Phenomena
Failure
cause
Mechanlcal
Nolse
When turn
panel,appear
cacophony
Caused by Mechanica noise of backlight
unit
Ripple Connectric
circle
Causeed by between mechanism and
Panel
B/L off
B/L lose action
*Connect badness between wire and
electrode
B/L dark
B/L brightness
darker than normal
*Connect badness
Short between wire and electrode
B/L wire
damaged
B/L wire damaged
Operation abnormal or systemic noise
B/L wire
open
Without backlight
Operation abnormal or systemic noise
B/L shut
down
B/L shutdown in
sometime
Short between lamp housing and wire, Because
consume power too much
Содержание HL47K
Страница 1: ...1 HL47K T V 8 8 8 8 1 3 4 ...
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Страница 20: ...20 Power source Removing the table stand and installing a wall mount bracket ...
Страница 30: ...30 4 Channel 5 Gamma 6 BackLight ...
Страница 31: ...31 7 Function ...
Страница 32: ...32 8 BLOCK DIAGRAM AND CIRCUIT DIAGRAM 8 1 BLOCK DIAGRAM 8 2 CIRCUIT DIAGRAM MTK5380 ...
Страница 48: ...您正在使用 ZwCAD 2005 试用版 详情请查阅WWW ZwCAD COM ...
Страница 49: ...49 10 TROUBLE SHOOTING GUIDE 10 1 Simple check 10 1 1 PDP is not bright 10 1 2 No picture ...