Nokia 6800 Series - Manual (Page 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
4
Horizontal sync pulse present on D1 for first 8 lines of vertical
pulse
5 +5 V
6 0 V
7 Parallel clock.
8 Sync derived from TRS-ID, EAV/SAV
9
Error either No input or the wrong standard or the serial data
has errors
10
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.