ASTRO-PHYSICS 1565GTO 유지 관리 지침 매뉴얼 - 페이지 16

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KeYPad Resetting solutions

if your keypad makes a clicking sound as it turns off for a second, then starts up again, it is resetting. Resets are due to

an interruption of power to the keypad and can occur for a variety of reasons. if your keypad is displaying this behavior,

please try the following suggested remedies.

Receptacle for Power Connector on CP1, CP2 or CP3 - Center

Pin halves Pinched together (does not apply to CP4)

this is the principle cause of keypad resetting incidences. it occurs in 90% of the cases.

the center prong of the power receptacle on the control box must be spread apart far

enough to make solid contact with the cable plug. after repeated use, they may move

closer together. use a pointed object, like a knife tip or screw driver to spread them

further apart. the arrow in the photo to the right shows the space between the prongs.

When properly spaced you should feel frictional resistance when inserting the plug.

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Resets when battery is losing power. if your battery voltage is declining, the keypad will not receive enough power

to operate. this can occur if the output falls below 11 volts after extended use. We suggest that you monitor your

output with a voltage meter (some batteries have one built in).

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Resets when other items are plugged into same battery as the mount. Keep in mind that the meter reading is

an average and will not show dips. gel cells have internal resistance, which will cause a voltage drop when the load

changes. if you connect a ccd camera, Pc or Kendrick dew remover to the same battery (not recommended since

each of these draws a significant load), the load will momentarily drop below 9 volts and the keypad will reset or it

may affect the gto circuit itself and cause the keypad to lock up. if you plan to use a single battery to power multiple

items, we recommend that you use a large marine battery that is not a gel cell and hook everything up to it before

calibrating the gto.

examine all of your power and motor cables to be sure that there are no broken connections. also, wiggle the cables to

see if you can initiate a reset. Pay particular attention to the connectors on both ends of the keypad coiled cable. is the

strain relief cracked or broken? do you see the tiny wires exposed?

over time, oxidation of the connector pins inside the keypad can cause incomplete contact and

momentary loss of power resulting in resets. generally, this is only a problem with keypads, serial

number 1565gto and earlier (later contact pins are gold plated). if your keypad is more than

3 years old, it is beyond the 3-year factory warranty and you can try the procedure below. if the

keypad is still under warranty, you run the risk of voiding the warranty if you open it up to attempt

this or any other procedure.

1. using a Philips #0 screwdriver, carefully loosen the screws that hold the back cover in place.

lift the cover carefully and be sure that you do not lose the white spacers, one per screw.

2. locate the four blue connectors.

3. lift each connector carefully, one at a time, to reveal the pins beneath.

4. clean the connectors using a Q-tip or a cotton swab with a de-oxidant,

such as deoxit d5, on it and gently rub the contacts.

5. Replace each connector firmly.

6. While gently positioning the cables, put the cover back in position and

tighten the screws (with their white washers in place).