– 29 –
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
D1670
9V
Power Failure Line
CPU (IC800) 48pin
D1620/D1621
D3.3V
D1641
5V
D1684
AUDIO_POW
LVDS_P OW
D1682
CPU (IC800) 23pin
TROUBLESHOOTING FLOW CHARTS
NO POWER
Summary of Contents for DP32649 - 32" LCD TV
Page 23: ... 23 IC BLOCK DIAGRAMS IC001 Audio AMP ...
Page 24: ... 24 IC1670 Voltage Regulator IC803 EEPROM IC BLOCK DIAGRAMS CONT ...
Page 25: ... 25 IC1680 DC to DC Regulator IC1600 DC to DC Converter ...
Page 26: ... 26 IC5500 Video Processing IC BLOCK DIAGRAMS CONT ...
Page 27: ... 27 IC6600 USB protection IC6270 Low output Amplifier ...
Page 28: ... 28 IC5700 DDR Double Data Rate SDRAM IC BLOCK DIAGRAMS CONT ...