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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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thanks you are the best.Very good detail, Quick service response. A useful service manual with all details.
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Great service!!! Polecam gorąco wszystkim zainteresowanym
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I liked the price plus it had everything i needed to service the tv.
thankyou Tim Hertz
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The manual is excellent, well detailed, and divided into two parts. Received very quickly. Thank you.
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a solid deal - quick and without any problems.
I life in europe - with downloads no loosing time
once again
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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