Chapter 14:
Test Points
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| 1 | Vertical sync pulse | |
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| 2 | Control data ECL “1” for input 2/4 | |
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| 3 | Control data ECL “1” for inputs 1/2 | |
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| 4 | Horizontal sync pulse present on D1 for first 8 lines of vertical | |
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| pulse | ||
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| 5 | +5 V | |
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| 6 | 0 V | |
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| 7 | Parallel clock. | |
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| 8 | Sync derived from | |
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| 9 | Error either No input or the wrong standard or the serial data | |
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| has errors | ||
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| 10 | Carrier detect approx. 2 V for valid input, 0 V for no input, a | |
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| ramp during auto standard search | ||
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| 11 | PLL voltage typically +2.0 V to +2.4 V when locked | |
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Other test points, located at the | 12 | VTT voltage typically 3 V | ||
rear of the assembly, are used for |
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13 | 0 V | |||
factory testing. | ||||
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120 | 6800/7000 Series - Distribution and Routing Products Installation and Operation Manual |
