TV cann’t searched any channel/no picture
Function trouble
(
TV video
)
Confirm if the RF cable
does have signal
N
Check
external
RF
Signal
source
Y
Check T1/VA1Y1ED2002
Pin7for 5V?
Check the
power
supply
circuit
Y
N
Check T1-pin4,5 for I2C
N
Y
Check T1-pin8 for signal
N
Check the
circuit from
T1-pin8to
U21-pin24,25
and the power
supply for U21
Y
TCheck T1pin1for
voltage 1.8~4.3V
Check the circuit
N
Y
changeT1
Check I2C circuit
(U6/NT68F631
PIN16,17)
Содержание HL22KN1
Страница 14: ...14 4 DISASSEMBLE AND ASSEMBLE ...
Страница 15: ...15 HL22KN1 KNOCKED DOWN SHOW ...
Страница 16: ...16 ...
Страница 17: ...17 ...
Страница 18: ...18 ...
Страница 19: ...19 5 INSTALLATION INSTRUCTIONS Accessories Remote Control User Manual Battery Audio wire ...
Страница 20: ...20 ...
Страница 21: ...21 ...
Страница 22: ...22 ...
Страница 23: ...23 ...
Страница 24: ...24 6 OPERATION INSTRUCTIONS Basal information 6 1 Front panel controls 6 2 Back panel controls ...
Страница 25: ...25 ...
Страница 26: ...26 6 3 Setting up Your Remote Control ...
Страница 28: ...28 Press the button of OK to quit the factory menu ...
Страница 29: ...8 Electrical Parts 8 1 Connective Wire Photo 8 2 Circuit Diagram ...
Страница 56: ...71 Sincere Forever ...