TROUBLESHOOTING GUIDE
THE PICTURE APPEARS, BUT THE AUDIO DOES NOT APPEARS. (AT RF MODE)
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| Is CD301 connected? |
| No | |
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| Yes |
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| Yes |
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| Is there signal at pins |
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| 1 and 4 of CD301? |
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| No |
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| Yes |
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| Is there signal at pins |
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| 2 and 4 of IC301? |
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| No |
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| Is there signal at pins |
| Yes | |
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| AA3 and AA4 of IC2801? |
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| No |
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| Yes |
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| Is there signal at pins 1 |
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| and 2 of IC6551? |
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| No |
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| Yes |
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| Is there signal at pin 6 |
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| of IC6552, IC6553? |
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| No |
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| Yes |
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| Is there signal at pin |
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| 5 of TU5801? |
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| No |
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| Change TU5801. |
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Connect CD301.
Change SP301 and SP302.
Check IC301 and peripheral circuit.
Check Connection of CP4301.
Check IC6551 and
peripheral circuit.
Check IC6552, IC6553 and peripheral circuit.
Check IC5801 and peripheral circuit.
