32
5. Repair Flow Chart
No Picture (LED Orange)
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 circuit
NG
Check main board standby power supply
Change U152
OK
NG
Check I
2
C bus
Check I
2
C communication
NG
OK
Summary of Contents for LT26A1
Page 36: ...36 6 PCB Layout 6 1 Main Board LT26A1 715G3693M01000004K ...
Page 37: ...37 ...
Page 38: ...38 LT32A1 715G3693M01001004K ...
Page 39: ...39 ...
Page 40: ...40 6 2 Power Board LT26A1 715G3425P01000003S ...
Page 41: ...41 ...
Page 42: ...42 ...
Page 43: ...43 LT32A1 E32AG2NB3WH72N 715G3234P01H30003M ...
Page 44: ...44 ...
Page 45: ...45 ...
Page 46: ...46 LT32A1 E32AA2NB3WH72N 715G3332 1 ...
Page 47: ...47 ...
Page 48: ...48 ...
Page 49: ...49 LT32A1 E32AA2NB3WH72N 715G3645P01W30003S ...
Page 52: ...52 8 Block Diagram ...
Page 81: ...81 11 Exploded View LT26A1 ...
Page 82: ...82 LT32A1 ...