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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 (IC803),
Crystal (X801), Power Unit
Check: Power Unit
Check: Power Unit
Diod
Detected Voltage
Diod
Detected Voltage
D1660
9V
Power Failure Line
CPU (IC800) 48pin
D1632/D1633
D3.3V
D1651
5V
D1674
AUDIO_POW
LVDS_P OW
D1683
CPU (IC800) 23pin
TROUBLESHOOTING FLOW CHARTS
Summary of Contents for DP37819 - 37" Diagonal FULL 1080p LCD HDTV
Page 27: ... 26 IC BLOCK DIAGRAMS IC001 Audio AMP ...
Page 28: ... 27 IC1660 DC to DC Converter IC BLOCK DIAGRAMS CONT IC801 EEPROM ...
Page 29: ... 28 IC1670 DC to DC Converter IC1640 DC to DC Converter ...
Page 30: ... 29 IC5500 Block Diagram IC BLOCK DIAGRAMS CONT ...
Page 31: ... 30 IC6601 USB Protection IC6300 Low output Amplifier ...
Page 32: ... 31 IC5700 DDR Double Data Rate SDRAM IC BLOCK DIAGRAMS CONT IC6502 I2C SELECTOR ...