Theory of Operation
3–6
WFM 601 - Service Manual
The Readout State Machine interprets the readout instructions from the
Microprocessor and loads digital data into the DAC. Analog output of the DAC
drives the stroke generators to create the readout segments that are displayed on
the CRT.
This is a serial in/parallel out register for signals that do not need to be synchro-
nized to the video signal.
The Serial Interface is a latch, driven by the Microprocessor, that outputs the
chip select and enables for the serial devices, such as the DACs and the
serial/parallel registers used for the Remote and Front Panel.
There are a number of D-to-A Converters (DACs) used to decode Microproces-
sor instructions and output positioning, gain, and level dc levels to the various
circuits throughout the instrument. The DACs are part of serially loaded and
clocked devices that are commonly referred to as Daculators.
The RS232 input consists of a 9-pin connector and a line driver. It is used to
calibrate the instrument.
The Remote input consists of a 25-pin connector and parallel in/serial out
registers to provide an external interface for remote control of the instrument.
Readout State Machine
Serial Static Outputs
Serial Interface
Digital-to-Analog
Converter
RS232
Remote
Содержание WFM601
Страница 4: ...The WFM601 Serial Digital Component Monitor...
Страница 10: ...Contents iv WFM 601 Service Manual Revised Nov 1994...
Страница 14: ...Contents viii WFM 601 Service Manual Revised Nov 1994...
Страница 19: ......
Страница 32: ......
Страница 50: ...Installation 2 18 WFM 601 Service Manual...
Страница 57: ......
Страница 87: ...Theory of Operation 3 30 WFM 601 Service Manual...
Страница 88: ......
Страница 110: ...Performance Verification 4 22 WFM 601 Service Manual...
Страница 111: ......
Страница 132: ......
Страница 168: ...Maintenance 6 36 WFM 601 Service Manual...
Страница 169: ......
Страница 175: ...Options 7 6 WFM 601 Service Manual...
Страница 176: ......
Страница 177: ......
Страница 226: ......
Страница 233: ...WFM 601 SERIAL COMPONENT MONITOR BNC INPUT BOARDS 1...
Страница 237: ...ECL TO TTL CONVERTER LINE BUFFER RAM WFM 601 SERIAL COMPONENT MONITOR COPROCESSOR 3...
Страница 241: ...2 1 10 4256403 Y DAC DIGITAL HALF BAND FILTER Y DELAY WFM 601 SERIAL COMPONENT MONITOR Y DELAY HALF BAND FILTER DAC 5...
Страница 245: ...Y FILTER Pb FILTER Pr FILTER WFM 601 SERIAL COMPONENT MONITOR Y Pb Pr RECONSTRUCTION FILTERS 7...
Страница 247: ...WFM 601 SERIAL COMPONENT MONITOR TRANSCODERS PIX MONITOR OUTPUTS 8...
Страница 249: ...0 0 0 0 WFM 601 SERIAL COMPONENT MONITOR LIGHTNING VECTOR BOWTIE SWITCHING 9...
Страница 251: ...WFM 601 SERIAL COMPONENT MONITOR CONTROL DACULATOR 10...
Страница 257: ...HORIZONTAL DEFLECTION SWEEP GENERATORS HORIZONTAL SIGNAL MUX HORIZONTAL AMPLIFIER WFM 601 SERIAL COMPONENT MONITOR...
Страница 259: ...ROM MICROPROCESSOR NOVRAM RAM FLASH EPROM BUFFERS RESET ABORT WFM 601 SERIAL COMPONENT MONITOR...
Страница 261: ...OUTPUTS SYNCHRONOUS LINE RATE CONTROLLER SYNC SEPARATOR WFM 601 SERIAL COMPONENT MONITOR DYNAMIC CONTROL 15...
Страница 265: ......
Страница 271: ...WFM 601 SERIAL COMPONENT MONITOR FRONT PANEL 20...
Страница 282: ...WFM 601 FIG 1 EXPLODED VIEW A1 A2 A3 A4 A4A1 A5 A6 A7 A8...
Страница 290: ...Glossary Glossary 8 WFM601 Serial Component Monitor...
Страница 304: ...A8 DAC Board 671 2676 04 M81119 Page 4 of 4...