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TEKTRONIX 1240
Service Manual


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  • Contains Circuit Diagrams
  • Download
  • PDF Format
  • Complete manual
  • Language: English
Price: $4.99

Description of TEKTRONIX 1240 Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagrams, printed circuit boards, repair tips, wiring diagrams, block diagrams and parts list. Service Manual ( sometimes called Repair Manual ) is used mainly by technicians.

If You just want to know how to use Your tv, video, mp3 player etc. You should look for Owner's Manual. After placing order we'll send You download instructions on Your email address.

The manual is available in languages: English

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Customer Reviews
4 of 5 Stars! 1240 TEKTRONIX Service Manual by Rob Modeste;
This manual is accurate and of high quality. It is only volume 2 of the service manual. This is schematic, parts lists, and exploded mechanical drawings. The theory of operation and the diss-assembly instructions are in volume 1. The unit can be tricky to dis-assemble portions of so the volume 1 manual can be important. The product description of the manual is accurate but it does not say anything about volume 1 and the image of the front page does clearly say Volume 2.
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Text excerpt from page 250 (click to view)
Glossary-1240

Service Vol. II

GLOSSARY (cont.)
SIGNAL NAME DESCRIPTION

TEST(L)

The I/O Processor Board�s signal line used to check the ability of the 280 CPU to write a value out to the board edge connector and correctly read it back. Also, the 9-Channel�s strobe signal derived from Control Processor control lines; used for gating probe and board I.D. data through the Status Monitor. The acquisition board T clock falling edge indicator; active when the probe C/Q line goes from a logic 1 to logic 0. The Trigger�s load signal for control RAMS containing sequence commands for true and false conditions. The 9-Channel�s threshold write signal derived from Control Processor control lines; used when setting the 9-Channel�s threshold setting. The 18-Channel�s threshold write signal derived from Control Processor control lines; used when setting the 18-Channel�s threshold setting. The 18-Channel�s timebase selection programming strobe. The Display Board�s timing diagram data signal carrying serial data to the Timing Diagram ROM. Also the 9-Channel�s signal derived from Control Processor control lines; used as a write strobe for loading timing control values. The Display Board�s timing mode signal used to indicate the display is currently generating timing diagrams. Trigger Position signals from the trigger circuitry located on the Control Processor to the Trigger Board; indicates zero detection (where zero is the trigger location). Trigger position indicator 1 and 2 ripple clock signals from the Trigger Board to the Control Processor Board; used to clock upper 8 bits. The Trigger�s master reset signals for the Trigger Position Indicator counters. The Trigger�s control signal used to specify glitches on the Test Pattern Generator. The Trigger�s control signal used to specify either T1 (true) or 12 MHz (false) as the base clock for the Test Pattern Generator. The Trigger�s T1 signal for the Test Pattern Generator clock in TPG modes 2 and 3. The Trigger�s TPI 1 and 2 prescale readback.

TFA LLING(L) TF RAM(L) THRESH(L)

THRESH(H)

TIMEBASE(L) TIMING(H)

TM 0DE(L) TPl(L), TP2(L)

TPIl(H), TP12(H)

TPI1, TP12 RESET(H) TPG GL(L) TPG Tl(H) TPG T1 CLK(H) TPRO-7(H)

12-14

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1240 TEKTRONIX
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