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TROUBLESHOOTING FLOW CHARTS
NO POWER
No
No
Yes
Yes
Yes
(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 (F601)
open?
Check: around
CPU (IC801), IC (IC802),
Crystal (X801), Power Unit
Check: Power Unit
Check: Power Unit
Diode
Detected Voltage
D1602/D1604
D3.3V
D1651
AUDIO_POW
D1640
9V
D1631
5V
D1683
12V_ANALOG
D1621
TU33V
Power Failure Line
CPU (IC801) 32pin
Q803-Q804
Diode
Detected Voltage
LVDS_POW
D1661
CPU (IC801) 36pin
Содержание DP32647
Страница 30: ... 30 IC BLOCK DIAGRAMS CONT IC1600 DC to DC Converter IC1620 DC to DC Converter ...
Страница 31: ... 31 IC1630 DC to DC Converter IC1640 DC to DC Converter ...
Страница 32: ... 32 IC BLOCK DIAGRAMS CONT IC5500 Screen Controller ...
Страница 33: ... 33 IC5700 IC5720 DDR Double Data Rate SDRAM ...
Страница 34: ... 34 IC6100 TS Demodulator IC BLOCK DIAGRAMS CONT ...
Страница 35: ... 35 IC6200 A D Converter ...