SERVICE NOTES - SELF DIAGNOSIS
This model has self diagnosis function for video and audio decoder sections.
Immediately after Power ON, the self diagnosis function searches each operation of ICs around the mechanism control microcomputer IC [IC701]. The LED on the video board indicates their results.
LED [D701] INDICATION
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SYMPTOM
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No error
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External RAM error [IC751]
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Video decoder error [IC201]
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Video RAM error [IC251]
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Audio decoder error [IC203]
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ALL RESET
- Press [Tuner / Band], Display / Demo] and [Menu-3] simultaneously.
- The contents of the preset are restored to those at shipping.
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