Nokia 6800 Series Manual de usuario descargar pdf (Pagina 147)

Chapter 14: VSR-4041 Serial Video Router Module Adjustment

120 6800/7000 Series - Distribution and Routing Products Installation and Operation Manual

Test Points

Item Specifications

1 Vertical sync pulse

2 Control data ECL “1” for input 2/4

3 Control data ECL “1” for inputs 1/2

Horizontal sync pulse present on D1 for first 8 lines of vertical

pulse

5+5 V

60 V

7 Parallel clock.

8 Sync derived from TRS-ID, EAV/SAV

Error either No input or the wrong standard or the serial data

has errors

Carrier detect approx. 2 V for valid input, 0 V for no input, a

ramp during auto standard search

11 PLL voltage typically +2.0 V to +2.4 V when locked

12 VTT voltage typically 3 V

13 0 V

Other test points, located at the

rear of the assembly, are used for

factory testing.

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Nokia 6800 Series Manual de usuario Pagina 147