19
5. Repair Flow Chart
1). No power
No power
Press power key and look
if the picture is normal
Please reinsert and make sure
the DC 19V is normal
Reinsert or check the
Adapter/Inverter section
X401 oscillate waveforms are normal
Check CN702, CN703, U704, U705
Replace U401
Replace X401
OK
OK
OK
NG
NG
NG
NG
Check U704 Vout=5V
U705 Vout=1.2V
Summary of Contents for V22T
Page 18: ...18 ...
Page 22: ...22 6 PCB Layout 6 1 Main Board 715G3412 1 ...
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Page 26: ...26 6 2 Power Board V22t 715G 901 1 15 ...
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Page 29: ...29 V22t 715G3541P01000001S ...
Page 30: ...30 ...
Page 31: ...31 V24t 715G3258 1 ...
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Page 34: ...34 6 3 Key Board 715G3421 1 6 4 IR Board 715G3413 1 ...
Page 36: ...36 8 Block Diagram 8 1 Main Function ...
Page 51: ...51 10 Exploded View V22t ...
Page 52: ...52 V24t ...