1-22 (No.YA711<Rev.002>)
EV+9V is not output. (PANEL+13V is outputted normally.)
FLOW CHART NO.15
Is approxi13V voltage supplied to the
collector of Q905?
Yes
No
No
DVD-ON+3.3V is not output.
FLOW CHART NO.14
Is approxi5V voltage supplied to the
collector of Q904?
Yes
Check Q904, D906, and their periphery
circuit, and service it if defective.
Check Q905, D901 and their periphery circuit, and
service it if defective.
Check C638, D638 and their periphery circuit, and
service it if defective.
Check C643, D643, D644 and their periphery circuit,
and service it if defective.
Check C640, D640 and their periphery circuit,
and service it if defective.
Is approxi4V voltage supplied to Pin(3) of
IC901?
Yes
No
Check Q901, Q902, DVD-MAIN PWR line and their
periphery circuit, and service it if defective.
No
EV+1.2V is not output.
FLOW CHART NO.16
Is approxi5V voltage supplied to the
emitter of Q901?
Yes
Replace IC901.
P-ON+9V is not output. (PANEL+13V is outputted normally.)
FLOW CHART NO.17
Is approxi13V voltage supplied to the
collector of Q641?
Is approxi10V voltage supplied to the
base of Q641?
No
Yes
Yes
Check D666 and their periphery circuit, and service
it if defective.
Check C643, D643, D644 and their periphery circuit,
and service it if defective.
No
Replace Q641.
Summary of Contents for LT19D200 - 19" LCD TV
Page 10: ...1 10 No YA711 Rev 002 2 Rear Cabinet S 1 1 Stand Assembly S 2 S 4 S 2 S 2 S 3 Fig D1 ...
Page 70: ...2 54 No YA711 Rev 001 No YA711 Rev 001 2 53 TOP PATTERN DIAGRAMS MAIN PWB PATTERN SOLDER SIDE ...
Page 71: ... No YA711 Rev 001 2 55 2 56 No YA711 Rev 001 R699 TOP MAIN PWB PATTERN PARTS SIDE ...
