![background image](http://html.mh-extra.com/html/haier/l32b1120/l32b1120_service-manual_136905048.webp)
- 47 -
5
˅
TV failure
TV no channel
Check if there is RF
signal input
Y
Check if there is
+5V at PIN2 of
U24
N
Y
Y
Y
N
Check the power
supply circuit to
this PIN
Check if there is
intermediate
frequency signal
output at PIN12 of
U24
Check if there
is I2C signal
at PIN6 &
PIN7 of TUNER1
Check the I2C
circuit
between
U11 and
U24
Check the
tuner
Check the signal
circuit between
U11 and U24
Fix the RF
set
N
Содержание L32B1120
Страница 3: ... 02 9 Trouble shooting 43 9 1 Simple Check 43 9 2 Main Board Failure Check 9 3 Panel Failure 44 53 ...
Страница 13: ...3 4 LCD Panel 12 02 9 ...
Страница 18: ... 17 ...
Страница 19: ... 18 ...
Страница 20: ... 19 ...
Страница 24: ...6 Operation Instructions Basal information 6 1 Front panel controls 6 2 Back panel controls 23 ...
Страница 25: ...6 3 Setting Up Your Remote Control 24 ...
Страница 26: ...7 Electrical parts 7 1 Block diagram 25 AMP Headphone Coaxial 1 2 MSD318QT Main IC ...
Страница 37: ...8 TV OPERATION 36 ...
Страница 38: ... 37 ...
Страница 39: ... 38 Press ENTER Key To Select ...
Страница 40: ... 39 Press ENTER Key To Select ...
Страница 41: ... 40 ...
Страница 44: ... 43 9 Trouble shooting 9 1 Simple check ...
Страница 46: ... 45 3 Panel display abnormally connector J9 is at normal level ...
Страница 50: ... 49 7 PC no picture or picture abnormal ...
Страница 51: ... 50 8 YPBPR AV no picture or picture abnormal Check Y ...