PIN Details of IC CA 920

PIN Details of IC CA 920

Substitude : TBA 920 , 1034


Functions :

  1. Horizontal Oscillator
  2. Sync separator
  3. AFC (Automatic Frequency Control)

Pin No. Function Voltage
1. POSITIVE (+Ve) supply voltage 12
2. 15625Hz.frequency output to horizontal driver section 4.2
3. Pulse shaper and phase shifter 2.4
4. Phase discriminator 2.4
5. Flyback (blanking)pulse input (15625Hz.)from EHT -0.2
6. Horizontal sync input (phase discriminator)(15625Hz.) 0
7. Separated sync output 1 to 7
8. Composite video signal input 0.2
9. Noise gating 0
10. Coincidence detector 2.6
11. Time constant switching 3.2
12. Control voltage limiter -1.4
13. Horizontal oscillator (reference voltage)(15625Hz.) 7.5
14. Horizontal oscillator (15625Hz.generation) 7
15. Horizontal oscillator (15625Hz)control (H-Hold) 3
16. Ground (-Ve terminal) 0

Note: 1. if top shifting occurs when VCR is connected . 2.Please use styroflex capasitor only (10 Kpf)at Pin No.14.



 
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