25
5. Repair Flow Chart
No Picture (LED Orange)
Abnormal Display
Check TV system setup
Reset source
NG
Replace the filter or resistance
RF signal
Check Tuner
Replace Tuner
Check LVDS cable
Check input
Replace LVDS cable
Check panel
Replace panel
OK
OK
NG
OK
OK
NG
OK
OK
NG
OK
Check signal filter circuit
Check the source
Change key board/IR board
Check U400
Change U400
Check key board/IR board
No picture
OK
NG
OK
NG
Check 24V power supply
OK
Check the power supply
NG
Check main board standby power
Check CN100
OK
NG
Check I
2
C bus
Check I
2
C
NG
OK
Summary of Contents for A626N
Page 5: ...5 ...
Page 28: ...28 6 PCB Layout 6 1 Main Board 715G3693M01000004K ...
Page 29: ...29 ...
Page 30: ...30 ...
Page 31: ...31 6 2 Power Board A626N 715G3425P01000003S ...
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Page 33: ...33 ...
Page 34: ...34 A632N E32AG2NB3WH62N 715G3234P01H30003M ...
Page 35: ...35 ...
Page 36: ...36 A632N E32AA2NB3WH62N 715G3332 1 ...
Page 37: ...37 ...
Page 38: ...38 ...
Page 39: ...39 A632N E32AA2NB3WH62N 715G3645P01W30003S ...
Page 42: ...42 8 Block Diagram MTK IC MT5360BMU B LQFP 256 ...
Page 71: ...71 10 Exploded View A626N ...
Page 72: ...72 A632N ...