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Фрагмент инструкции
The instrument allows 11 complete instrument setups to be recalled from memory via channel numbers if a channel number has been assigned to the vision carrier frequency. Refer to the table ’VHF/UHF Channel Frequencies for Different TV Systems’ in the appendix B can be helpful. - The assignment channel number - frequency can be random. - The channel number is written into the displayed memory. - Ten channel numbers can be stored in memory locations 0 to 9. - The 11th channel number is engaged if the memory location is indicated on the display; the actual frequency plus required channel number is stored. This memory is available only by key sequence ’RECALL - CH - digit - digit’. - When a channel number is input no check on multiple memory locations having the same channel number is performed. In this case the lowest memory,location would be activated. Corrections - The RECALL key stops the input procedure (only possible until second digit); the previous value is displayed again. - Pressing the INPUT key enables restart to the input procedure. - Stored channel numbers are overwritten by new input. (§) 3-26 OPERATING INSTRUCTIONS PM 5415 / PM 5418 Example for storing frequency, memory location and channel number: Vision carrier 543.25 MHz Memory location 1 Channel 30 (UHF/IV Standard G) Input sequence: MEMORY FREQUENCY/MHz CH A INPUT STEP e# u 3 4» * 0-75 0*50 ©.25 STEP STORE 1 INPUT CH STOO-9 0-75 0*50 ©.25 0-75 'NPUT 0-50 0*25 If a channel number is to be assigned to an already stored frequency, only the third input sequence is necessary: INPUT CH digit digit 3.5.14 Instrument Setups from Memory, RECALL Function For conventient operation of the instrument setups often used by the operator can be stored in the memory. Ten memory locations are available. If necessary, amplitude settings for video, chroma, and RF carrier must be set manually. - Stored instrument setups are recalled from the required memory location by pressing the RECALL key and numerical key 0 to 9. - The RECALL, CH, and two numerical keys 0 to 9 are used to recall the instrument if an assignment of TV channel numbers has previously been made. - If a channel number is recalled which has not been stored, the display shows ’nFnd’ (not found) with subsequent display of the previous setup. PM 5415 / PM 5418 OPERATING INSTRUCTIONS (GB) 3-27 Examples: The following data were stored in memory location 1: Vision carrier 543.25 MHz Channel 30 Test pattern greyscale Sound 1 kHz, internal Example 1, recall via memory location: RECALL FREQUENCY/MHz CH I Li il 0-75 O-50 0.25 The display shows the memory location and RF frequency. All instrument setups stored in memory location 1 are executed. Example 2, recall via channel number: FREQUENCY/MHz CH RECALL CH I r J n 1 L Z< U 0-75 0-50 0*25 The display shows the memory location and channel number. All instrument setups stored in memory location 1 are executed. Additional functions: - By pressing the RECALL key and repeatedly pressing the STEP A or V key, memory locations 0 to 9 are recalled one after the other, starting from the actual memory location. - The actual memory location flashes on the display. - By pressing the numerical keys 0 to 9, a required memory location can directly be recalled. - Pressing the INPUT key stops the operation; the instrument returns to normal input mode. The test patterns and sound operating modes can be set by the keypad. - The RECALL and decimal point keys are pressed to turn on/off the RF carrier at the RF OUTPUT connector for a period of 10 seconds. This mode is stopped by pressing any key. Endurance tests for synchronization and automatic sound switching in TV receivers can be performed by this operating mode. (GB) 3-28 OPERATING INSTRUCTIONS PM 5415 / PM 5418 3.5.15 Initial Storage of Ten Memory Locations A defined initial storage of the 10 memory locations with instrument setups, for example frequency, test pattern, and sound modulation, is possible via the builtin operating program (PROM). Input sequence: The instrument setups of the following table are stored in the memory locations 0 to 9. Data of memory location 0 are executed at once. Memory Place STORE Channel CH Frequency (MHz) FREQUENCY Test Pattern PATTERN Sound Modulation SOUND 0 'k 38.9 for all memory INTERN 1 kHz 1 4 62.250 places pattern 2 5 175.250 combination no. 42: 3 12 224.250 GREY 4 21 471.250 SCALE 5 35 583.250 COLOR 6 40 623.250 BAR 7 70 863.250 MULTI 8 ★ 133.250 BURST 9 287.250 DEM * Assignment and recall without channel number A further initialization of the 10 memory locations with defined vision carrier frequencies (range limits) is possible by using the following input sequence: U zl cl U Data of memory location 0 are executed at once. The previous video and sound modes are taken over. A channel number is not assigned. The fol...
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Электрогенераторы - PM5418 (35.7 mb)
Электрогенераторы - PM5418 (35.7 mb)