Pin Details of IC HA 11485
Funtions:
- SIF Detector
- Video Amplifier
- FM Detector
- RF AGC
| Pin No. | Funtion | Voltage |
| 1. | AFC Output | 11.3 |
| 2. | Ground(Ve -)supply voltage | 0 |
| 3. | RF AGC (Delayed AGC) | 11.9 |
| 4. | IF AGC (Keyed AGC) | 4.6 |
| 5. | Supply voltage for video IF amplifier | 12.4 |
| 6. | DC clamp(decoupling) | 6.2 |
| 7. | IF Filter | 6.2 |
| 8. | IF Filter | 6.2 |
| 9. | IF amplifier | 6.2 |
| 10. | Audio signal to drive to the speaker | 3.6 |
| 11. | Audio amplifier output | 4.1 |
| 12. | Tone control | 4.1 |
| 13. | FM Detector Input | 2.1 |
| 14. | Fm detector Coil | 6.4 |
| 15. | Fm detector coil | 10.8 |
| 16. | Audio amplifier | 3.1 |
| 17. | Audio signal output | 3.1 |
| 18. | Sound IF output | 3.7 |
| 19. | Limiter amplifier filter | 3.1 |
| 20. | Limiter amplifier Input | 3.1 |
| 21. | Feedback | 3.1 |
| 22. | Supply voltage for sound IF amplifier | 12 |
| 23. | AFT | 7.9 |
| 24. | AFT | 7.9 |
| 25. | AFT | 7.9 |
| 26. | AFT | 0 |
| 27. | Video Detector coil | 5.2 |
| 28. | Video detector coil | 5 |
| 29. | RF AGC Control(delayed AGC) | 4.4 |
| 30 | AGC Filter(5.5 MHz) | 6.4 |
