TROUBLESHOOTING GUIDE | Appendix |
2. NO PICTURE
Check The Waveform of TU101 IF PIN
NG : Go To The Figure (A)
OK : Go To The Figure (B)
(A) |
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| TU101 |
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| 33V |
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| TUNER |
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| CHECK | |
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| THE |
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| 5V | VOLTAGE |
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CHECK |
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CLOCK,DATA |
| Z101 |
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| CHECK THE |
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SCL/SD | SAW FILTER |
| VOLTAGE | |||
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| #7,8 | #22,43,45,63,80 |
| 5V | ||
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| I701 |
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| #18,19 |
| #9,16,86,88 |
| 3.3V | |
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CHECK THE |
| X701 |
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CRYSTAL |
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| 24.576MHz |
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(B) |
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CHECK THE |
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HOUT |
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| #73 |
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CHECK THE | #83,84,85 | I701 |
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RGB OUT |
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| CHECK THE | ||
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5V | #22,43,45,63,80 |
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| HEATER | ||
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| VOLTAGE | ||||
3.3V | #9,16,86,88 |
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| D405 |
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CHECK THE |
| D406 |
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VOLTAGE |
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| T402 |
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| CHECK THE |
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| FBT |
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| 190V LINE |
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