About the DS3800NDID
The DS3800NDID is a large circuit board with several hundred components. Manufactured by GE, it part of the Speedtronic Mark IV series. The DS3800NDID has two small auxiliary cards attached, and has the following specifications:
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It is built with six connectors to communicate with other PCBs. This includes two 218A4553-1 A/mp connectors populating its left edge, one small ribbon connector situated in the middle of the board, two vertical male pin connectors located along the middle axis of the board, and one male pin connector (218A4807-P13) placed in the upper right.
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It has one trim and one rotary potentiometer.
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It has two resistor networks.
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It has seven LEDs (five red and two amber,) and three LED strips.
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It has one push button switch. This is marked "rst."
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It has six jumpers. These jumper switches have the following options: J2-vf or i, J3-r or nr, J4-s or d, J5-s or d, J6-off or on.
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It has one heatsink installed.
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It has two PCB stiffeners. One of these is placed near the left edge behind the male connector. The other sits parallel to the first, 2/3rds of the way across the board.
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It has twenty transistors.
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It has eighteen test points.
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It has a row of spare PTH.
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It has seven nylon spacers attached to the right and middle part of the board.
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It has two small auxiliary cards installed. One is labeled 6BA9407P2. The other is not labeled but is populated with multiple amplifiers.
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It is built with over seventy-five integrated circuits. These include crystal oscillators, low power low offset voltage quad comparators, quad 2-input positive OR gates, and 2-line to 4-line decoders/demultiplexers.
The DS3800NDID is built with several hundred metal film resistors of differing values. Capacitors include BEC 9147 42110 .50 +/- 10% 200V (white) as well as smaller capacitors. The board is factory drilled and alignment marked. All components are labeled.
Technical support publications for the DS3800NDID (such as manuals and datasheets) were distributed by GE.
