– 28 –
NO POWER
No
Yes
Yes
Yes
No
(or the voltage to some lines is not supplied.)
After a few seconds, the set will be switched off.
Check 'Power Failure' Circuit.
No:
All 0V
(except '5V_STBY' line)
Is
the voltage to all lines
supplied?
Is
the voltage
to "5V_STBY" line
supplied?
Is
fuse open?
Check: arround
MAIN IC (IC5500),
Crystal (X5500), Power Unit
Check: Power Unit
Check: Power Unit
Diod
Detected Voltage
Power Failure Line
MAIN IC (IC5500) D9pin
D6700
5V
D1613
5V
D1668
AUDIO_POW
TROUBLESHOOTING FLOW CHARTS
Содержание DP26640 - 26" Diagonal LCD HDTV 720p
Страница 22: ... 22 IC BLOCK DIAGRAMS IC001 Audio AMP ...
Страница 23: ... 23 IC1600 IC1640 DC to DC Converter IC BLOCK DIAGRAMS CONT IC1620 DC DC converter ...
Страница 24: ... 24 IC5650 IC5660 IC5900 Voltage detector IC5750 Flash Memory ...
Страница 26: ... 26 IC6250 Voltage comparator IC5700 DDR Double Data Rate SDRAM ...
Страница 27: ... 27 IC BLOCK DIAGRAMS CONT IC6500 IC6530 IC6560 Logic AND gate IC 6600 USB Protection ...
Страница 33: ... 33 IC DIODE AND TRANSISTOR PIN LAYOUTS ...