Pin Details of IC LA1387

Pin Details of IC LA1387

Substitute : LA7800

Functions :

  1. AFC detector
  2. Vertical oscillator
  3. Vertical driver
  4. Horizontal oscillator
  5. Sync separator
  6. Vertical blanking

Pin

No.

Functions
Voltage
1.
AFC output
6.3
2.
AFC input to horizontal oscillator
6.7
3.
Horizontal oscillator output(15625Hz.)
0.5
4.
Shut down circuit
0
5.
Ground (-Ve)supply voltage
0
6.
Vertical driver output(50Hz.)
0.5
7.
Feedback (output to input )
3.5
8.
Feedback (output to input )
0.2
9.
Vertical blanking output(50Hz.)
0.2
10.
(50Hz)Vertical oscillator frequency adjust(V-Hold)
6.2
11.
(50Hz)Vertical oscillator time constant circuit
0.1
12.
Positive (+Ve)supply voltage
12
13.
Sync separator
1.2
14.
Sync separator Sync separator input
10
15.
Supply voltage regulator
12.7
16.
AFC input
4.3



 
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