Question about Meade RCX400 12 Telescope

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When I turn the rcx400 scope on (from park position) it will rotate in the R.A. direction (as it should), "but" if the ambient temp is (approx.) below 50 deg F, when it has stopped it will not move in the DEC direction (only move in R.A.).... However if I remove the DEC housing and "push" on the circuit board, it will again move. I have drilled a small hole in the DEC cover and when the temp is belw 50 deg, I push a pencil through the hole to press on the cicuit board and the DEC will then move o.k. What is the problem? Loose conection, cracked circuit board, ??? I tried to push on all connections to make sure they are seated, but does not fix problem...?

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Could be either-- problem. Check for a cable not fully seated on the circuit board. If it is not a loose cable then the board will need to be repaired by Meade or someone who does electronic circuit repairs.

Posted on Oct 05, 2010

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Posted on Jan 02, 2017

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2003 Chev Malibu. Radio inop with key in on position, auto systems not working, I.e. daytime running lamps, auto lock and drivers unlock, fuel and temp gauges not working.


Have you had vehicle check for DTC'S diagnostic trouble codes . Check fuse's an relays , find wiring diagrams to see what controls these systems ?
Radio/Battery fuse , fuse G 10 amp located in the right instrument panel fuse box . Do you know where this ?
Fuse Block - Right IP - On the right side of the instrument panel
An there is one on the other end of the instrument panel ,driver side .
Fuse Block - Left IP- On the left side of the instrument panel The fuel an temp . gauges not working is probably the step motors inside instrument cluster . GM had problem with this 03 to 06 .
How to repair GM Instrument Cluster Speedometer Gauge Stepper

Daytime Running Lamps (DRL)
The ambient light sensor is a light sensitive transistor that varies its voltage signal to the body control module (BCM) in response to changes to the outside (ambient) light level. When the BCM receives this signal it will either turn on the daytime running lights (DRL) or the headlights. Any function or condition that turns on the headlights will cancel the daytime running lamps operation. With the headlight switch in the OFF position, the headlights will either be turned ON or OFF, after an approximate 30 second delay depending on whether daylight or low light conditions are sensed. The HTR A/C IGN fuse in the underhood junction block supplies ignition positive voltage to the daytime running lamp (DRL) relay coil circuit. The DRL relay switch contacts are connected to the low beam circuit. When the headlamp switch is placed in the OFF position, the BCM will either turn on or off the daytime running lamps, depending on whether daylight or low light conditions are sensed. The BCM energizes the DRL relay, closing the switch contacts and grounding the low beam circuit. Ground is provided at G101. The DRL illuminate the low beam headlights at a reduced intensity. The DRL will operate when the ignition switch is in the ON position, the gear selector is not in the PARK position and the parking brake is released. When these conditions have been met and the ambient light sensor indicates daytime conditions, the DRL will illuminate.
DRL operation in Manual Transmission equipped vehicles will occur when the ignition switch is in the ON position, and the parking brake is released. - check fuse's an relay first.
Door Lock System Components
The power door lock system consists of the following components:
?€¢
Driver door lock switch


?€¢
Front Passenger door lock switch


?€¢
Body Control Module (BCM)


?€¢
Relays: Driver Door Unlock--if equipped, Door Unlock, and Door Lock


?€¢
Door Lock fuse 15A


May 25, 2016 | Cars & Trucks

1 Answer

2000. Where is fuse for tail lights?


Do your headlamps work ?
Park/Marker/License/Tail Lamps
Voltage is applied to the turn/headlamp switch at all times. When the turn/headlamp switch is in the PARK or the HEAD position, voltage is applied to the following components:
?€¢
The park lamps


?€¢
The marker lamps


?€¢
The tail lamps


?€¢
The license lamp

The front marker lamps are grounded through the turn filament of the respective front park/turn lamp. The front marker lamps light as a result.
The automatic lamp control function turns on the park lamps and the headlamps. This action occurs when the ambient light sensor determines that the exterior lamps should be turned ON based on the amount of available light. When the BCM grounds the park lamp relay, voltage is supplied directly to the park lamps, bypassing the turn/headlamp switch assembly. When this action occurs, the following conditions exist:
?€¢
The automatic lamp control relay is grounded.


?€¢
The headlamps turn ON. Refer to Headlights/Daytime Running Lights (DRL) Circuit Description .

The lamps turn OFF when the BCM does not ground the park lamp relay or the automatic lamp control relay. This action is caused by the following conditions:
?€¢
The available light reaches a predetermined level.


?€¢
The ignition switch is turned to the OFF position

Mar 31, 2016 | Pontiac Grand Am Cars & Trucks

1 Answer

No low beam. Good high beam. No day lights. What's wrong?


No on the fuse . The LH HDLP and RH HDLP fuse in the fuse block - under hood, supply battery positive voltage to both low and high beam lamps at all times. For manual operation, when the headlamp switch is in the ON position, the headlamp switch supplies ground directly to the headlamps and to the body control module (BCM) on the headlamp low or high beam signal circuit, depending on the position of the headlamp dimmer switch. The BCM uses this signal to determine if the conditions are present to illuminate the daytime running lamps or park lamps.
The headlamps may be turned on 2 different ways. First, when the driver places the headlamp switch in the ON position, for manual operation. Second, with the headlamp switch placed in the OFF position activating automatic lamp control (ALC).For ALC operation, the BCM receives a signal from the ambient light sensor indicating a low or high ambient, outside, light level. Under low light conditions the BCM grounds the headlamp relay control circuit energizing the headlamp control relay. The now closed relay supplies ground through the headlamp switch to the headlamps and the BCM on the headlamp low or high beam signal circuit, depending on the position of the headlamp dimmer switch. When the BCM grounds the headlamp relay control circuit it also grounds the park lamp relay control circuit illuminating the park lamps. The headlamp relay is grounded at G203.
Daytime Running Lamps (DRL)
The low beam headlamps operate at reduced intensity when in daytime running lamps (DRL) mode. The ground circuit to the switch side of the DRL relay has a resistor in-line to reduce the intensity of the low beam headlamps for DRL operation. The body control module (BCM) receives a signal from the ambient light sensor indicating a low or high ambient, outside, light level. Under daylight conditions the BCM grounds the DRL relay control circuit energizing the DRL control relay. The now closed relay supplies ground directly to the low beam headlamps and to the BCM on the headlamp low beam signal circuit. The low beam headlamps now illuminate with reduced intensity. The DRL relay is grounded at G203. Any time the headlamps are illuminated the DRL will not illuminate. Manual park lamps do not effect DRL operation.

Feb 23, 2016 | 2005 Chevrolet Equinox LS

1 Answer

I need to clean the mirror. Larry


You would need to use this type of technique to clean the mirror:

http://www.youtube.com/watch?v=9Y8xFnXFVGQ

However, you will need to dis-assemble the rear of the scope tube to get to the optics. Not a very easy task with your RCX ! in fact you should probably return the tube to Meade for cleaning seeing as this is a multi- thousand dollar telescope!

This scope is VERY EXPENSIVE, and should be cleaning by experts and or the factory. Call Meade directly here:

http://www.meade.com/support/index.html



www.telescopeman.org
www.telescopeman.us
www.telescopeman.info

Jul 30, 2011 | Meade RCX400 20 in. Telescope

1 Answer

2006 Pacifica emergency brake problem.


The only manual adjustment for the parking brake on these is at the shoes themselves. Procedure for that is as follows:

1) Place parking brake lever in "full released" position.
2) Raise and support vehicle.
3) Remove plug in parking brake shoe support to access adjuster star-wheel.
NOTE: Through the access hole, rotate the adjuster wheel in the following direction to expand the shoes outward against the drum.
Left brake--Rotate star wheel toward rear of vehicle.
Right brake--Rotate star wheel toward front of vehicle.
4)Using an appropriate tool, turn adjuster star wheel until wheel will not rotate (dead lock).
5) Back off adjuster six detents (teeth).
6) Rotate wheel, checking for light drag. If drag is too heavy, continue to back of adjuster one detent at a time until light drag is present. Do not back off star-wheel more than 17 detents from wheel lock.
7) Install access plug.
8) Adjust opposite wheel parking brake shoes using same method.
9) Lower Vehicle.
10) Apply and release parking brake lever once to ensure proper operation of parking brakes.

These directions are directly from 2006 Pacifica factory service manual. If you have any other problems feel free to ask. v\:* {behavior:url(#default#VML);} o\:* {behavior:url(#default#VML);} w\:* {behavior:url(#default#VML);} .shape {behavior:url(#default#VML);} Normal 0 false false false /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;}
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Mar 07, 2010 | 2006 Chrysler Pacifica

1 Answer

Meade RCX 400 hand paddle does not boot up anymore.


Post this issue on the www.cloudynights.com LX Forum --

Jun 29, 2009 | Meade RCX400 12 Telescope

2 Answers

Ambient temp guage problems


The temperature sensor is located in front of the radiator on the passenger side. Replacements cost approx $25.00.

Jul 23, 2008 | 2000 Chevrolet Impala

1 Answer

Mirror lock


Possibly the shaft has jammed. Follow this link for a source of good information: http://www.mapug-astronomy.net/AstroDesigns/MAPUG/ArhvList.htm

From their files:
The locking knob has a gear on the inside end of its shaft. It engages teeth on the outside edge of a large metal disk connected to the mechanism that locks the position of the mirror on the central baffle tube. Rotating the locking knob one direction rotates the large disk to tighten the collet on the central baffle. Reversing direction loosens it.
The teeth do not extend all the way around the large disk. So sometimes the locking knob gear jams to a stop before the lock is fully engaged. Soon after the GPS scopes first started shipping Buck Harley discovered that in such cases you can remove the locking knob with its shaft and gear, then reach in and rotate the large disk with your finger. Replacing the locking knob will now allow sufficient rotation to fully engage the lock. If you happen to move the large disk in the wrong direction, then just repeat the process and move the disk in the other direction.
You don't need to tighten the lock down hard. Just a little snug is enough. You should not attempt to use the coarse focus knob while the mirror is locked. Damage to the focusing mechanism could result.
This design is intended to precisely hold the mirror position. So, yes, it is meant to allow effective use of a separate guide scope by eliminating mirror flop when in the locked position.

May 26, 2008 | Meade LX200GPS Telescope

1 Answer

Meade etx-80 sticking


Some (not all) versions have an end stop - it it just reaching that? The scope will rotate only aboit 3 complete turns between the 2 ends.

The 'correct' starting position is as follows: Place scope on tripod or table with control panel at the West. Unlock the declination lock (horizontal slew). Rotate scope anticlockwise until it hits the end stop, Then roate it back clockwise until scope is pointing North (should be about 3/8 of a turn, as the end stop is at South West). Then lock the declination, Set the tube horizontal and continue with the alignment process.

Autostar always thinks you have set the position like that. If you haven't, it will work OK until it tries to rotate past the point it won't go, then chaos results!

Feb 12, 2008 | Meade ETX-90 (48x90 mm)

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