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TROUBLESHOOTING GUIDE
1. NO POWER
NO POWER
(POWER INDICATOR OFF)
CHECK IC501
NO
NO
CHECK POWER BOARD,
AND FIND OUT A SHORT
POINT AS OPENING
EACH POWER LINE
CHECK
U401(2.5V),U412(2.5)
U406(1.8V) LINE
NO
CHECK CRYSTAL(U204)
YES
CHECK J104
VOLTAGE
PIN12,13,14 (5V)?
IS U401 PIN2(2.5V)
IS U412 PIN2(2.5V)
U403,U404 PIN2(3.3V)
U406 PIN2(1.8V)
CHECK IC501 PIN G4,G3
PULSE
1
2
3
1
4
Waveforms
1
J104-#2,13,14
2
U406-#2
3
U403,U404-#2
4
U204-#G3,G4
YES
YES
Summary of Contents for Flatron L245WP
Page 8: ...TIMING CHART 8 VIDEO SYNC F E C A B D PC INPUT ...
Page 22: ...EXPLODED VIEW 22 010 120 020 080 070 090 140 100 110 030 040 060 050 130 ...
Page 31: ...SCHEMATIC DIAGRAM 31 1 CONNECTORS JACKS ...
Page 32: ... 32 2 SCALER ...
Page 33: ... 33 3 COMP INPUT A D CONVERTER ...
Page 34: ... 34 4 POWER CONNECTION ...
Page 35: ... 35 5 USB ...
Page 36: ... 36 6 HDMI ...
Page 37: ... 37 7 CONTROL ...