12. Power Supply Unit (P.S.U)
Trouble in P.S.U |
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Is | No | |||
power switch | ||||
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on? |
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| Yes |
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Is | No | |||
fuse F001 | ||||
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O.K? |
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| Yes |
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Is the | No | |||
voltage of IC001 | ||||
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pin 3 16V? |
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| Yes |
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Is | No | |||
voltage of T001 | ||||
pin 6 130V |
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(370V)? |
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| Yes |
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Is the | No | |||
waveform of IC001 |
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pin 1correct? |
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400Vpp (620Vpp) |
| Yes |
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Is | No | |||
voltage of C103 | ||||
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45V DC? |
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| Yes |
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Is | No | |||
voltage of C101 | ||||
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80V DC? |
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| Yes |
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Is | No | |||
voltage of C113 | ||||
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120V DC? |
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A |
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Switch on
Check the power cord outlet and diode D001, D002, D003, D004
Replace R004
Replace C005
Trouble in D001, D002,
D003, D004, C004 and
TH001.
Trouble in T001, IC001, IC101, PH001 and D005 etc.
Trouble in D102, D103 or B+ Part
Trouble in D101 or
Video Part
Trouble in D108 or
Video Part
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