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TROUBLE SHOOTING FLOW CHARTS
NO POWER
Is fuse (F1600) open?
No
Yes
Check: Varistor (VA1600), Diode Bridge (D1604), IC (IC1601), Diode (D1612), Thermistor (R1600)
Is the voltage to "5V_STBY" line supplied?
Yes
No
Check: IC (IC1601,IC1600), Diode (D1600,D1601, D1605,D1606,D1610), Transistor (Q1607)
No: All 0V
Is the voltage to all lines supplied?
Yes
(except '5V_STBY' line)
Check: arround CPU (IC801), IC (IC886,IC1831,IC1899), Crystal (X801), Transistor (Q876,Q1608)
(or the voltage to some lines is not supplied.)
After a few seconds, the set will be switched off.
Check 'Power Failure' Circuit.
� 37 �
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