Substitute : TDA1675, TDA 167OV, TDA1870
Function : Vertical oscillator and vertical output ,Blanking generator
| Pin No. | Functions | Voltage |
| 1. | It is one output of the power amplifier.It drive the yoke by a negative ramp current (50Hz.) | 13.7 |
| 2. | Supply voltage for power output stage | 21.4 |
| 3. | Vertical oscillator (50Hz) | 3.4 |
| 4. | Vertical oscillator (50Hz) | 0.5 |
| 5. | Input for sync pulses (+Ve) (50Hz) | 0.4 |
| 6. | Output of the switch driver by the internal clock pulse generated by the threshold circuits | 0.5 |
| 7. | The curret between Pin No.7 and ground decides the height of the ramp (sawtooth pulse) | 6.8 |
| 8. | Ground (-Ve supply voltage ) | 0 |
| 9. | Input of the buffer (output) stage | 3.9 |
| 10. | Output of the buffer stage and is internal connected to the inverting input of the power amplifier | 4.9 |
| 11. | Non inverting input | 4.4 |
| 12. | Inverting input of the amplifier | 4.3 |
| 13. | Output where the blanking pulse is available | 1.2 |
| 14. | Main supply voltage | 21.4 |
| 15. | Output of the flyback generator | 1.4 |
