以下三组是部分能直接代换的场扫描集成块:
1. LA7840 LA7841 LA7845
2. TA8403 LA7830 LA7833 TA8427 LA7831
3. LA78040 LA78041 TDA8170 TDA8172 TDA8177 TDA8179 TDA9302 STV9302 STV9379 STV9325 AN5522