PIN DETAIL of IC A 240
Substitute :TDA 440 S,B
Functions :
1.Video IF amplifier (3 stage)
2.Video detector (Limiter)
3.Sync detector
4.AGC detector
5.Video pre-amplifier
Pin No. | Function | Voltage |
1. | Video IF input | 4 |
2. | Decoupling capacitor for biasing | 4 |
3. | Ground (-Ve terminal) | 0 |
4. | AGC time constant | 2 |
5. | Tuner AGC output | 12 |
6. | Tuner AGC Delay | 1 |
7. | Flyback pulse(15625 Hz)input from EHT | 1 |
8. | FM Detector (Carrier tuning) | 7 |
9. | FM Detector (Carrier tuning) | 7 |
10. | Voltage regulation | 0.2 |
11. | Negative video output | 3 |
12. | positive video output | 8.5 |
13. | Positive (+ Ve supply voltage) | 12 |
14. | Internally connected | 4 |
15. | Decoupling capacitor for biasing | 4 |
16. | Video IF input | 4 |
