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TROUBLESHOOTING FLOW CHARTS
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
D6052/D6053
3.3V
Power Failure Line
CPU (IC800) 32pin
D1620/D1621
D3.3V
D1662
5V
D1653
6.5V
D1679
AUDIO_POW
Q810, Q811
LVDS_P OW
D1683
CPU (IC800) 23pin
Содержание DP19648 - 19" LCD TV
Страница 26: ... 26 COMPONENT ANDTESTPOINT LOCATIONS MAIN BOARD PARTS SIDE ...
Страница 27: ... 27 MAIN BOARD SOLDER SIDE ...
Страница 28: ... 28 CONTROL BOARD PART SIDE CONTROL BOARD SOLDER SIDE PC BOARD PART SIDE PC BOARD SOLDER SIDE ...
Страница 32: ... 32 IC1600 DC to DC Converter IC1240 Component Selecter IC BLOCK DIAGRAMS CONT ...
Страница 33: ... 33 IC1651 DC to DC Converter IC1671 DC to DC Converter ...
Страница 34: ... 34 IC5500 Screen Controller IC BLOCK DIAGRAMS CONT ...
Страница 35: ... 35 IC3200 Audio Controller IC6270 Audio A D ...
Страница 36: ... 36 IC5700 DDR Double Data Rate SDRAM IC BLOCK DIAGRAMS CONT ...