Functions :
- Horizontal phase detector
- Pulse width modulator
- Horizontal oscillator
- Error Amplifier
- Horizontal driver stage
| Pin No. | Functions | Voltage |
| 1. | Phase detector output | 1.5 |
| 2. | Horizontal flyback(blanking)pulse(15625Hz.)Input | 0 |
| 3. | Horizontal sync pulse input | 0 |
| 4. | Re-start count capacitor | 1.2 |
| 5. | Slow start and transfer characteristic ( voltage varies ) | up-down |
| 6. | Over current protection input | 0.7 |
| 7. | Over current protection input | 6.8 |
| 8. | Feedback output to input | 6.3 |
| 9. | Positive (+ Ve supply voltage ) | 13 |
| 10. | Reference voltage input | 6.8 |
| 11. | Horizontal output (15625 Hz.) | 2 |
| 12. | Duty factor adjust | 2 |
| 13. | Oscillator timing network | 1.3 |
| 14. | Reference voltage (saw tooth oscillator) | 1.5 |
| 15. | Reference stage input (saw tooth oscillator ) | 1.9 |
| 16. | Ground (-Ve supply voltage ) | 0 |