Ret key, Focus key, Map key – Meade Instruments LX200 User Manual
Page 31: Object keys (m, star, and cngc), Prev and next keys
Meade Instruments Corporation - Meade LX200 Instruction Manuals
the 'fast' focus speed for the electric focuser accessory option*, while CNTR and GUIDE set the'slow' focus
speed. There are other special functions for the CNTR and GUIDE keys that are discussed in the RET KEY
operations.
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6. RET Key
Typically used for guiding the LX200 during an astrophotograph, the RET key (5, Fig. 6) is used to change
the brightness and pulse rate of the optional corded style illuminated reticle eyepiece*. Pressing either the
PREV and NEXT (up and down arrow) keys while holding down the RET key, alters the reticle brightness
level up or down.
When guiding on very faint stars, you may find it helpful to pulse the light from the LED so that the reticle
crosshairs blink on and off. You will be able to adjust the reticle brightness as well as adjust the pulse
rates. There are three pulse rates that can be used, all with a one second pulse interval. The continuous
illumination control and pulse rates are set by holding down the RET key and pressing one of the following
keys; GUIDE (100% on, no pulsing), CNTR (50% on, 50% off), MAP (25% on, 75% off), CNGC (10% on,
90% off).
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7. FOCUS Key
The FOCUS key (9, Fig. 6) allows 2 speed electric focus control of the optional Meade #1206 Electric
Focuser* (or equivalent corded electric focusers such as the Meade Model #1200A). To activate, press
either the SLEW or FIND key (for fast focusing), or the CNTR or GUIDE key (for slow focusing), press and
hold the FOCUS key, and then press and hold the PREV or NEXT keys for near and far focus.
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8. MAP Key
The Map key (11, Fig. 6) turns on and off the red LED 'flashlight' that is located at the top of the Keypad.
The deep red LED light will protect your night vision while you search for a particular accessory or examine
a star chart.
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9. Object Keys (M, STAR, and CNGC)
These keys (10, Fig. 6) allow direct access to the LX200's Object Library any time that you are not editing a
value or setting a parameter, or selecting a file menu. Use the Object keys when you are at a "top level" of
a mode. After pressing one of these keys, the Keypad's display will give a blinking cursor, allowing you to
enter the catalog number for objects listed in the library (see Appendix D. 64,359-Object Library). After
entry press the ENTER key. To see the entered object press the GO TO key. A brief description of the
catalog key symbols are; M (Messier objects), STAR (stars and planets), and CNGC (Computerized New
General Catalog).
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10. PREV AND NEXT Keys
The PREV and NEXT (up and down arrow) keys (12, Fig. 6) move the display LCD arrow up and down the
menu files and menu file options, so that you may choose an individual selection to enter. These keys are
also used when adjusting the RET brightness range, or when activating the electric focuser. PREV and
NEXT work as well to select the objects from the Object Library when using START FIND.
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