![background image](http://html.mh-extra.com/html/haier/hl19r-19-lcd-tv/hl19r-19-lcd-tv_service-manual_136729057.webp)
43
connector:CN7
2
)
Check PSB output voltage orderly
:
voltage : +12V ,+12V
connector:CN6
(
P6,P7
)
12.3 Main board failure check
State:No picture
First,check cables which connect with PSB and the Lvds wire with the panel.
Second, check the output voltage of CN4
Connector: CN4.
State
:
No sound
First
,
check cables which connect with Main Board
,
then check as follows
First,check speaker anode(+) and cathode(-),confirm speaker short or not. If short ,replace speaker.
Second,check CN1 with oscillograph, confirm wave output or not.
Connector: CN1.
12.4 Pannel failure
Failure Mode
Part Name Description Phenomena
Failure
cause
V B/D
Vertical bar
V Dim
Vertal gray
line
V L/D
Vertical color
line(light or
dark forever)
H B/D
Horizontal
bar
H Dim
Horizontal
gary line
TCP
H L/D
Horizontal
line(light or
dark forever)
Block Defect :TCP cracking or cracking
Dim or L/D :TCP Sunken
:TCP lead cracking
:ACF bonding short
:Awful environment and something electric enter into
LCD
:Mis-align between TCP and Panel
:Panel failure
:TCP failure
Failure Mode
Part Name Description Phenomena
Failure
cause
Содержание HL19R - 19" LCD TV
Страница 27: ...27 7 2 Back panel controls ...
Страница 28: ...28 7 3 Setting Up Your Remote Control ...
Страница 55: ......
Страница 61: ...47 Sincere Forever Haier Group Haier Industrial Park No 1 Haier Road 266101 Qingdao China http www haier com ...