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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
CPU (IC800), IC (IC801),
Crystal (X801), Power Unit
Check: Power Unit
Check: Power Unit
Diod
Detected Voltage
Diod
Detected Voltage
D1671
9V
D6051/D6052
A3.3V
Power Failure Line
CPU (IC800) 32pin
D1620/D1621
D3.3V
D1663
5V
D1677
AUDIO_POW
Q810, Q811
LVDS_P OW
D1683
CPU (IC800) 23pin
TROUBLESHOOTING FLOW CHARTS
Содержание DP37649
Страница 29: ... 29 IC BLOCK DIAGRAMS IC001 Audio AMP IC1251 Video and Audio Select ...
Страница 30: ... 30 IC BLOCK DIAGRAMS CONT IC1600 DC to DC Converter ...
Страница 31: ... 31 IC1650 DC to DC Converter ...
Страница 32: ... 32 IC BLOCK DIAGRAMS CONT IC5500 Screen Controller and video processor ...
Страница 33: ... 33 IC5700 DDR Double Data Rate SDRAM ...
Страница 34: ... 34 IC BLOCK DIAGRAMS CONT IC3200 Audio Controller IC6270 Audio A D ...
Страница 35: ... 35 IC6400 LVDS Transmitter IC5900 Voltage detecting delay circuit ...
Страница 36: ... 36 IC BLOCK DIAGRAMS CONT IC1670 DC to DC Converter IC6504 HDMI Switch selector ...
Страница 51: ... 51 IC DIODE AND TRANSISTOR PIN LAYOUTS ...