Vixen SX2 Mount Manual

Instruction Manual for

Equatorial Mount

Instruction Manual for

Equatorial Mount

PREFACE

WARNING!

The SX2 equatorial mount is a basic model of the Vixen Sphinx series which combines high precision mechanics and simple operations. The

standard STAR BOOK ONE hand controller slews a telescope installed on the mount in the x-y directions (in the directions of RA and DEC). The

STAR BOOK TEN featuring a high definition large color LCD screen with intuitive controls is optional for the SX2 mount.

This instruction manual will assist you in the safe and effective use of the SX2 mount. Before using the mount, please be sure to read the safety

precautions described below carefully.

If misused, it can cause you a serious injury or death.

Misuse can cause injury or damage to you or other property.

You must complete all of the steps in this manual.

You must completely execute the instructions in this manual.

Warning

Caution

Important

Direction

*

This manual describes the functions and uses of the SX2 equatorial mount and some accessories for telescopes provided as packages.

You may occasionally find descriptions not relevant to your particular model.

*

Use this instruction manual in conjunction with your telescope manual.

*

Features may be updated or new functions added. Please visit Vixen’s website for the latest software updates.

*

Use the correct power source for the SX2 equatorial mount or the optional AC Adapter 12V 3A sold separately.

*

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant of Part 15 of the FCC rules.

Never look directly at the sun with your naked eyes or

through your telescope and finder scope. Permanent and

irreversible eye damage may result.

Do not leave the optical tube uncapped in the daytime.

Sunlight passing through the telescope or finder scope may

cause a fire.

Do not use the product in a wet environment. This could

damage the mount, result in electrical shock or a fire.

Do not attempt to disassemble or alter any part of the

equipment that is not expressly described in this manual.

This could damage the mount, result in electrical shock, a

fire or lead to an injury.

Keep small caps, plastic bags or plastic packing materials away

from children. These may cause choking or suffocation.

Stop operating the product immediately and unplug the power

cord if it emits smoke or a strange smell. This could result in fire

or electrical shock. Make sure to be safe and consult your local

Vixen dealer or distributor in your country.

Do not allow liquids or foreign objects to enter the product.

Unplug the power cord or switch the power off. This could result

in fire or electrical shock.

Do not damage, alter or place heavy item on the power cord.

This could result in fire or electrical shock.

The product includes heavy items such as the counterweight

and the mount body. Be sure to handle these units carefully.

Be careful not to drop the unit when handling. This may cause

damage or lead to injury.

Be sure to ventilate air while cleaning with volatile cleaner or

spray can cleaner to avoid poisoning.

Do not use the volatile cleaner or spray can cleaner in the

vicinity to fire. This could lead to catching fire.

CAUTION

Do not operate the product with wet hands. Plugging in and

out the power cord, electricity connectors and operating

the electronic parts with wet hands may cause damage to

the equipment or resulting in electrical shock.

Do not use the product while traveling or walking, as

injuries may arise from stumbling, falling or collision with

objects.

Do not bundle the power cord and electricity wires during

the operation. This may result in a short circuit and

damage to the surroundings.

Handle the power cord and electricity connectors properly. Do

not pull the power cord by force when disconnecting. This may

damage the cord and connectors, resulting in fire or electrical

shock.

HANDLING AND STORAGE

Do not leave the product inside a car in bright sunshine, or

in hot places. Keep any strong heat radiation sources away

from the product.

When cleaning, do not use solvent such as paint thinners.

It may cause deterioration.

Do not use the product in a wet environment. This may

cause the product to malfunction or result in fire or

electrical shock.

For storage do not expose to direct sunlight and keep the

product in a dry place.

Do not expose the product to rain, water drops, dirt or sand.

Gently wipe the product with a damp cloth for cleaning.

Thank you for your purchase of a Vixen SX2 equatorial mount.

Safety Precautions

Legend

2

TABLE OF CONTENTS Page

SAFETY PRECAUTIONS

TABLE OF CONTENTS

BEFORE USE

Checking the Package Contents

SX2 Mount Components Guide

SX2 Mount Specifications

STAR BOOK ONE Specifications

STAR BOOK ONE Components Guide

Flow of Operation

PREPARATION

Assembling the Mount

Setting up the Tripod

Attaching the Equatorial Mount

Attaching the Counterweight

Attaching the Optical Tube

Balancing the Equatorial Mount

Tips on Proper Balancing

Connecting the STAR BOOK Cable

Connecting to the Mount

Connecting to the STAR BOOK ONE

Connecting the Power Cable

BASIC OPERATION

Turning ON the Power

Setting 言語/Language

Slewing the Telescope

Changing the Slewing Speed

Terrestrial Viewing

Rough Alignment of the Moun

APPLICATION

Using the Polar Axis Scope

Polar Alignment in the Northern Hemisphere

Meridian Offset Setting for the Polar Axis Scope

Polar Alignment in the Southern Hemisphere

Precise Polar Alignment

(A Method of Drift Alignment)

Drift Alignment in the Northern Hemisphere

Change the Altitude Setting

How to Change Settings on the Mount / Controller

Mount Menu

Tracking Speed

Tracking Direction

Motor Power

Slewing Speed

Backlash Compensation

Setting for Autoguider

PEC

(Periodic Error Correction)

APPLICATION

Display Menu

Contrast Adjustment

Brightness Adjustment

Backlight Adjustment

Red LED Light Adjustment

Polar Scope Illumination Adjustment

Other Functions

Field of View Orientation

Reset

APPENDIX

Connectors on the STAR BOOK ONE

Connectors on the SX2 Mount

Dimensions of the SX2 Mount

Dimensions of the SXG Half Pillar

Dimensions of the SXG-HAL130 Tripod

Dimensions of the SXG-P85DX Pillar

Memo

------------------------------P 2

--------------------------------P 3

----------------------------------------P 4

---------------------P 4

----------------------P 5

---------------------------P 6

--------------------P 6

---------------P 7

----------------------------------P 8

---------------------------------------P 9

------------------------------P 9

----------------------------P 9

------------------P10

--------------------- P11

----------------------P12

------------------P13

------------------------P15

------------------P16

------------------------P16

-------------P16

--------------------P16

-----------------------------------P17

------------------------------P17

--------------------------P17

------------------------------P18

--------------------P18

------------------------------P19

-----------------------P20

----------------------------------------P21

-------------------------P21

-----P21

----P23

-----P24

---P26

------P27

---------------------P27

---P28

------------------------------------P28

------------------------------P28

----------------------------P29

---------------------------------P29

------------------------------P30

-------------------------P31

---------------------------P33

-----------------------P34

-----------------------------------P37

-------------------------P37

-----------------------P37

------------------------P37

-------------------P38

---------P38

--------------------------------P38

--------------------P38

---------------------------------------P38

-------------------------------------------P39

---------------P39

-------------------P39

-----------------------P40

---------------P40

-------------P41

---------------P41

------------------------------------------------P42

3

Zenith

North Celestial Pole

Earth's Axis

Polar Axis

Horizon

Equator

North Pole

South Pole

BEFORE USE

The SX2 Equatorial mount package contains the items listed below. Check if all the items are included.

In the northern hemisphere, stars appear to turn around the

polar star (the north celestial pole) making approximately one

rotation per day. This is called diurnal motion and occurs

because the earth turns on its own axis once a day. The

equatorial mount is a platform which is designed to rotate

parallel to earth's rotational axis.

Note:

*

The contents of your SX2 mount package may differ when you

purchase it as a complete telescope package.

*

A power supply unit is sold separately.

Checking the Package Contents

Package Consisting of

What is an Equatorial Mount?

Every movement of the electrically driven SX2 Mount is fully

controlled by the STAR BOOK ONE hand controller. The mount

will perform smooth and accurate movements when each

component on the mount is balanced correctly. An unbalanced

mount may cause vibrations and can result in tracking errors or

failure of rotational mechanisms. Make sure that the telescope

is well balanced.

Basic Movement of the SX2 Mount

Do not rotate the mount manually without loosening the

clamp levers.

Be careful not to bang the mount against other objects.

This could damage the gears and bearings.

The SX2 mount has clamps which allow you to rotate the Right

Ascension (R.A) and Declination (DEC.) axes freely for quick

set up for home position and compact storage of the mount.

Remember to tighten the clamp levers when you use the mount.

The clamp levers should be loosened to protect the inner gear

train for storage and when you transport the mount.

CAUTION

Never connect the STAR BOOK cable to other equipment

such as a PC.

This could result in electrical shock, fire, or damage to the

equipment. (The specifications of the STAR BOOK cable are

not compatible with RS232C (D-SUB 9PIN) connectors.)

CAUTION

SX2 Equatorial Mount

SX Counterweight 1.9kg

STAR BOOK ONE Hand Controller

STAR BOOK Cable

Ferrite Core (for commercial LAN cables)

Allen Wrench of 5mm on a side

Cigarette-lighter Plug Cord

Strap for STAR BOOK ONE

SX2 Instruction Manual (This book)

--------------------------------------1

------------------------------------1

--------------------------1

----------------------------------------1

--------------------1

-----------------------------1

---------------------------------1

-------------------------1

SX2 Equatorial MountSX Counterweight 1.9kg

Allen Wrench of

5mm on a side

STAR BOOK ONE

Hand Controller

Strap for STAR BOOK ONE

Cigarette-lighter Plug Cord

Ferrite Core

STAR BOOK Cable

4

BEFORE USE

SX2 Mount Components Guide

Mount Head

(Optical Tube Attachment Base)

DEC. Clamp Lever

R.A. Clamp Lever

Polar Axis Rear Cap

(Polar Scope Cover)

Altitude Scale

Polar Axis Scope

(Sold Separately)

Altitude Adjustment Knob

(for Polar Alignment)

Power Switch

Set Position Guidepost

Azimuth Adjustment Knobs

(for Polar Alignment)

DC12V Power

Connecting Port

Counterweight Bar

Counterweight Lock Screw

Counterweight 1.9kg

(4.2 lb)

Counterweight

Safety Thumbscrew

Finder Scope

Carry Handle

Lock Screw

Eyepiece

Flip Mirror Diagonal

Focuser Draw-tube

Focus Knobs

Fixing Bolt(Inside)with Grip

Fixing Knob

(for Half Pillar)

Leg Tip

(3 places)

Dew Shield

Safety Screw

Objective lens (Inside)

Dovetail Tube Plate

Dovetail-plate Mounting Block

SXG Tripod

SXG Half Pillar

Fixing Bolt with Grip

Leg Bracket

Extension Clamps

(3 places)

STAR BOK ONE

Motor Housing

Set Position Guidepost

Polar Axis Front Cap

R.A. Axis(Polar Axis)

Counterweight Bar Lock Lever

Controller Connecting Port

Altitude Clamp Lever

(For Polar Alignment)

[

SX2 Mount with optical tube and tripod

]

[SX2 Mount]

SX2-ED103S shown as an example

Dovetail Tube-Plate Lock Screw

Safety Screw

Declination Axis

DEC. Clamp Lever

5

BEFORE USE

SX2 Mount Specifications

The specifications are subject to change without notice.

Mount

R.A Slow Motion

DEC. Slow Motion

Worm Gear Shaft

R.A. Axis

DEC. Axis

Number of Bearings

Counterweight Bar

Polar Axis Scope

Azimuth Adjustment

Altitude Adjustment

Drive Motor

Celestial Tracking

Loading Capacity

Controller Cable Connection Port

Power Connecting Port

Electricity Consumption

Dimensions

Weight

Counterweight

Optional Accessories

(Available separately)

SX2 Equatorial Mount

180-tooth full circle micro-movement wheel gear, 72mm in diameter, Aluminum alloy

9mm in diameter, Brass

40mm in diameter, Aluminum alloy die casting

35mm in diameter, Aluminum alloy

5 pieces

20mm in diameter, retractable to the DEC body

Built-in 6x20mm scope with 8 degrees field of view, bubble level, illuminated reticle, Setting accuracy

within 3 arc minutes,

Time graduation circle : 10 arc minutes increments between 16h and 8h (the following day)

Date graduation circle : 2-day increments

Meridian offset circle : Adjustable between E20 degrees and W20 degrees in 5-degree increments

Northern hemisphere : Polaris guide scale (Applicable to year 2025)

Southern hemisphere : Octant 4 stars pattern

Fine adjustments: About ±7 degrees

Twin tangent screws/knobs : About 1.2 degrees per rotation

Latitude between 0 degree ~ 70 degrees, 3-altitude zone setting (high, middle and low latitude, adjustment

rage : ±15 degrees in each zone) , Altitude Scale:2-degree increments, Twin T-bar handles: 0.8 degrees per rotation

Stepping (Pulse) motors with 250PPS

High precision tracking with STAR BOOK ONE controller

About 1.2kg ~ 12kg (26.5lb), (300kg / cm torque load = About 12kg at a point of 25cm from the fulcrum)

D-SUB 9PIN male plug

DC12V EIAJ RC5320A Class4, Center-plus polarity

DC12V 0.3A ~ 2.0A

343mm (L) × 128mm (W) x 360mm (H)

About 7kg (15.4 lb), excluding counterweight

1.9kg (4.2 lb) x 1pc

STAR BOOK TEN Controller, SXG-HAL130 Tripod, SXG Half Pillar, AXG-P85DX Pillar, AC Power Source

STAR BOOK ONE Specifications

Hand Controller

CPU

Display

Power Connecting Port

Autoguider Port

Controller Cable Port

Power Supply

Electricity Consumption

Operating Temperature

Dimensions

Net Weight

Major Functions

STAR BOOK ONE

32bit CISC Processor 40MHz RX210

Two-line STN characters, with backlight

DC12V EIAJ RC5320A Class4, Center-plus polarity

6-pole 6-wired modular jack (For external Autoguider)

D-SUB9PIN male plug

DC12V (Supplied from the mount side.)

12V 0.3A ~ 2.0A (Combined with the mount.)

0 ~ 40℃ (104 F)

137mm (L) × 65mm (W) × 21mm (H)

110g (3.88 oz) (Excluding the cable.)

Celestial, Solar, Lunar and Kings rate speeds, tracking variable from 0.1x to 10x by steps, Backlash

compensation, PEC, Autoguider port, Two languages (Japanese and English), Screen brightness

adjustable, Direction keys, Red LED light

6

Star

N x999

Patent Pending DC12V Max.0.5A

(

6

)

Plus and Minus buttons

BEFORE USE

STAR BOOK ONE Components Guide

(

1

)

Mount button

(

2

)

Display button

(

3

)

Direction Keys

(

2

)

Display button

(

1

)

Mount button

(

6

)

Plus and Minus buttons

LCD Monitor

(

10

)

Eyelet

(

10

)

(

8

)

LED Light button

(

4

)

RA Reverse button

(

5

)

DEC Reverse button

(

7

)

LED Light button

(

3

)

Direction Keys

(

12

)

Mount Connecting Port

(

11

)

Autoguider Port

Set up menus for the mount such as tracking mode and

backlash compensation, with the mount button. Press-

ing the Mount button turns up the brightness of the

button itself and allows you to change the settings with

the direction keys. Press the Mount button again to

leave the menu and the brightness dims. The new

setting is saved as you enter the new value. (Your

recorded PEC data are for temporary use and not

saved if you turn off the mount.)

Set up menus for the controller such as language and

backlight adjustments, with the display button. Press-

ing the Display button turns up the brightness of the

button itself and allows you to change the settings with

the direction keys. Press the Display button again to

leave the menu and the brightness dims. The new

setting is saved as you enter the new value.

You can move your telescope in the RA and DEC

directions with these keys. Pressing any of the four

direction keys will accelerate the motor speed toward

the maximum value you selected. Then, that speed is

maintained while the key is being pressed. The motor

speed is decelerated lf you stop pressing the key.

The Direction keys function as menu selection buttons

to change the settings while the Mount button or

Display button is selected and lit brightly.

(

4

)

RA Reverse button

The tracking direction of the RA can be reversed to have

the orientation of your eyepiece’ s field of view change to an

opposite direction. Pressing the RA Reverse button turns

up the brightness of the button itself and the button will

function. Pressing the button again will change the orienta-

tion of the telescope to the original direction, and it will turn

down the brightness of the button to leave the menu.

(

5

)

DEC Reverse button

The tracking direction of the DEC can be reversed to

have the orientation of your eyepiece’ s field of view

change to an opposite direction. Pressing the DEC

Reverse button turns up the brightness of the button

itself and the button will function. Pressing the button

again will change the orientation of the telescope to

the original direction, and it will turn down the bright-

ness of the button to leave the menu.

With these buttons you set up the maximum slewing

speed of the telescope. The Plus and Minus buttons

function as menu selection buttons to change settings

as long as the Mount button or Display button is turned

up brightly

(

7

)

LED Light button

There is a built-in red LED light on the back of the

STAR BOOK ONE. The red light is switched to ON or

OFF alternatively each time the button is pressed

shortly. The red lightstays lit while you continue press-

ing the LED light button and the light goes off as you

release the button.

(

8

)

LED Light button

A 2 line (8 character each line) information screen with adjustable

backlight.

(

9

)

Red LED Light

The built-in red LED light on the back of the STAR BOOK ONE is

useful to keep accommodating your eyes to darkness at an observa-

tion site when you want to avoid white light.

(

10

)

Eyelet

The eyelet hole for a strap. The eyelets are provided on either side of

the controller.

(

11

)

Autoguider Port

Compatible with the SBIG autoguider’ s connection port. Designed for

6-pole 6-wired modular jack.

A connecting port to connect between the SX2 mount and the STAR

BOOK ONE. Designed for D-SUB9PIN.

(

12

)

Mount Connecting Port

7

BEFORE USE

Flow of Operation

Preparation

Take the following steps to set up and use the SX2 equatorial mount correctly.

Set up the tripod on a level ground and attaching the mount.

Balancing the Telescope in RA.

Balancing the Mount in DEC.

Page 9

Page 17

Page 18

Set the Language (The first time only)

Slewing the Telescope

Initial Setting

Basic Operation

Page 21

Using the Polar Axis Scope

High or Low Latitude Setup

Changing various settings on the mount and controller.

Application

8

1

3

4

2

2 33

1-1

2-1

2-3

2-2

2-1

2-3

2-2

1-2

4-2

2

4-1

Extension clampExtension clamp

SXG-HAL130三脚

ハーフピラー

SX2

NorthNorth

Screwdriver

SX2

Screwdriver

Post

Vanity Ring

Outer Hole

Hole

SXG Half Pillar

SXG Half PillarSXG Half Pillar SXG Half Pillar

Vanity Ring

Post

Allen wrench

Fixing KnobFixing Knob

Lock Knob

PREPARATION

Refer to the instruction manual of your telescope and accessory together with this manual when you attach the optical tube assembly to the mount.

The unit includes heavy items. Take care not to drop them when assembling as it could seriously damage the equipment or lead to injury.

Take care not to pinch your finger in the slide leg of the tripod when setting up.

Proceed to step II if this accessory is not provided with your telescope package.

Place the tripod on a level ground to make the telescope stable

during observation.

Loosen the extension clamp on the tripod leg so that the tripod

leg can be adjusted. Pull the tripod legs apart until each leg is

fully extended.

Tighten the extension clamp to hold the tripod leg securely in

place.

Attach the metal post on the tripod head. Thread the metal post

into the hole marked as SX and tighten it with a screwdriver.

Tighten the metal post completely until the end of the thread;

otherwise it could cause bend and break.

Position the tripod so that the metal post comes to north.

Assembling the Mount

Setting up the Tripod

1

2

Put the vanity ring on the thread of the metal post and attach the

metal post on the head of the half pillar. (1-1)

There are two threaded holes on the head of the half pillar. Thread

the metal post into the outer hole and tighten it with the supplied Allen

wrench.

Loosen the fixing knob on the lower part of the half pillar in advance

and put the half pillar on the tripod head. (2-1)

Attach the half pillar on the tripod head so that the center projection

on the bottom of the half pillar fits the center hollow on the tripod

head. (2-2)

Tighten the lock knob beneath the tripod head to secure the half

pillar. (2-3)

Attaching the SXG Half Pillar

TripodTripod

North

Place the tripod so that the metal post

on the SXG Half Pillar faces north.

9

1

3

2

3

2-1

2-2

2-1

2-2

3

2-1

2-2

2-1

2-2

2-3

PREPARATION

Attaching the Equatorial Mount

Package without the SXG Half Pillar

CAUTION: Be sure to handle the equatorial mount carefully as it is very heavy.

Loosen the azimuth adjustment screws in advance by turning the

azimuth adjustment knobs on the mount.

Position the mount so that the azimuth adjustment screws of the

mounting base comes above the metal post as shown in the figure.

(2 -1)

Place the mount on the tripod and tighten the fixing bolt underneath

the tripod head to hold the mount in place. (2-2)

Tighten the azimuth adjustment knobs on the mount base so that

the two knobs are set equally.

1

Package with the SXG Half Pillar

Loosen the azimuth adjustment screws in advance by turning the azimuth adjustment knobs on the mount.

Attach the mount on the half pillar so that the center projection on

the bottom of the mount fits the center hollow on the half pillar as

shown in the figure. (2-1)

Tighten the fixing bolt underneath the head of the half pillar to

hold the mount in place. (2-2)

Tighten the azimuth adjustment knobs on the mount base so that the two knobs are set equally.

PostPost

Lock Knob

Azimuth Adjustment

KnobsAzimuth Adjustment Knobs

Post

Lock Knob

Azimuth Adjustment

KnobAzimuth Adjustment Knob

Azimuth Adjustment

KnobAzimuth Adjustment Knob

Azimuth Adjustment

KnobsAzimuth Adjustment Knobs

Azimuth Adjustment

KnobAzimuth Adjustment Knob

10

PREPARATION

CAUTION: Be sure to handle the counterweight carefully as it is very heavy.

The counterweight bar is in the declination body. You may balance the SX2 mount with only the counterweight bar to start.

1

3

4

2

Tips on Assembling the Mount

Generally equatorial mounts are heavier on the declination axis side. Because of this feature, placing the equatorial mount so that its

declination axis comes directly over one of the tripod legs can make the equatorial mount most stable when you use the equatorial

mount for a north (or south) latitude of 50 degrees and lower. However, the balance of the equatorial mount may vary if the equatorial

mount is used in latitude higher than 50 degrees. This may result in shifting the center of balance to the opposite side of the

declination axis depending on the location of the loading equipment. Change the position of the tripod legs so that the equatorial

mount becomes more stable in such a case.

Loosen the counterweight bar lock lever to draw out the counterweight bar.

Tighten the counterweight bar lock lever with the counterweight bar extended fully.

Remove the safety screw on the end of the counterweight bar. Loosen the lock knob on the side of a

counterweight and install the counterweight by sliding it onto the counterweight bar.

Attach the counterweight so that the lock knob on the counterweight

is on the far side of the safety screw as shown in the figure.

Tighten the counterweight lock knob and replace the safety screw to screw it down on the end of the

counterweight bar tightly.

Far Side

Attaching the Counterweight

Lock Lever

Counterweight

Bar

Lock Lever

Counterweight

Bar

Counterweight

Safety Screw

Lock

Screw

Far Side

Lock Screw

Lock

ScrewLock Screw

11

PREPARATION

Attaching the Optical Tube

The telescope attaches to the SX2 mount via a dovetail tube plat or a dovetail slide bar.

Make sure that the slide bar or dovetail tube plate is flat against the saddle plate. Tightening the lock screws with a gap between these

parts may cause the telescope to fall.

1

2

3

The ED103S shown as an Example:

Loosen the lock knob and the safety screw on the mount head before you attach the optical tube.

Slide the dovetail tube-plate mounted optical tube onto the sunken platform of the mount head.

Tighten the lock knob onto the dovetail tube-plate centering notch until snug. Tighten the safety

screw securely.

Lock KnobLock Knob

Safety Screw

Lock Knob

Safety Screw

Dovetail-plate Tube Plate

Optical Tube

CAUTION: Take care not to drop the optical tube as it could result in serious damage.

12

PREPARATION

1

3

4

2

2-22-2

3

1-1

1-1 2-12-11-21-2

Balancing the Equatorial Mount

Balancing the Mount in Declination

In case of Optical Tube Assembly with Dovetail Slide Bar

Note:

The Vixen SX2 mount is a German equatorial mount, in which the rotating RA axis and rotating DEC axis cross each

other at right angle. The axes are rotated by using the movement of both axes to get maximum stability and limit

the stress on the gears. If the equatorial mount is in an unbalanced state, it will increase stress to the gears and

this could result in damage or erratic operation.

Precise slewing requires a high level of accuracy in rotation of both axes and is important in eliminating stress to

the gears. Make sure to balance the equatorial mount properly in RA and DEC accordingly.

An optical tube weighing 1.2kg (2.6 lb.) or less cannot be balanced with the SX2 mount.

Take care not to drop the optical tube assembly as it could seriously damage the equipment or lead to injury. Pay close attention to

the security of the telescope tube and do not excessively loosen the lock knobs on the equipment.

Loosen the R.A. clamp while holding the counterweight bar (1-1) and

turn the telescope tube until the

DEC. axis comes to horizontal (1-2). Tighten the R.A. clamp and

loosen the DEC. clamp. Be sure to hold the optical tube or

counterweight in hand while loosening the clamps.

Release the telescope gradually to see which way the telescope rotates around the declination axis.

If the telescope tube starts rotating as you release, it shows there is an imbalance in DEC.

To determine the balance point, loosen the lock knob that hold the telescope tube to the dovetail-plate

mounting block and slide the telescope tube either forward or backward until it remains stationary.

Do not loosen the lock knob too much in balancing. This could cause telescope to fall and lead

to injury.

Tighten the lock knob (and the safety screw) securely to hold the telescope tube in place.

Tighten the DEC clamp to finish this adjustment.

Counterweight

Bar

Counterweight

Bar

R.A. Clamp

DEC. Clamp

Decl. Axis

R.A. Clamp

DEC. Clamp

Decl. Axis

Lock Knob

Standstill

13

PREPARATION

3

4

2

R200SS shown

1

In case of Optical Tube Assembly with Tube Rings

Loosen the R.A. clamp while holding the counterweight bar (1-1) and turn the telescope tube until the

DEC. axis comes to horizontal (1-2). Tighten the R.A. clamp and loosen the DEC. clamp. Be sure to

hold the optical tube or counterweight in hand while loosening the clamps.

Release the telescope gradually to see which way the telescope rotates around the declination axis. If

the telescope tube starts rotating as you release, it shows there is an imbalance in DEC.

To determine the balance point, loosen the tube ring lock knobs that hold the telescope tube and slide

the telescope tube either forward or backward until it remains stationary.

Do not loosen the lock knobs too much in balancing. This could cause telescope to fall and lead to injury.

Tighten the tube ring lock knobs (and the safety screw if any) securely to hold the telescope tube in

place.

Tighten the DEC clamp to finish this adjustment.

An optional dovetail slide bar is useful to extend a balancing range.

1

2

3

Balancing the Mount in R.A (Right Ascension)

Loosen the R.A. clamp while holding the counterweight bar and turn the telescope tube until the DEC axis comes to horizontal as

shown in the figure.

Release the telescope tube gradually to see which way the telescope rotates around the R.A. axis. If the telescope tube starts

moving by its own weight as you release, it shows there is an imbalance in the R.A.

While holding the counterweight bar, loosen the lock knob on the counterweight so that it can be

moved to a point where it balances the telescope tube. This is the point at which the telescope

remains stationary when the R.A. clamp is loose.

If your telescope is light in weight, the mount may balance without the supplied counterweight. (The

extended counterweight bar itself can act as a counterweight.) Retract the counterweight bar for

further balance adjustment.

Tighten the lock knob on the counterweight to hold in place.

Tighten the R.A. clamp on the mount securely.

Do not move the counterweight too much in balancing. This could damage the telescope tube

or lead to injury.

Lock KnobLock Knob

Lock Knob

Lock

ScrewLock Screw

Standstill

Counterweight

Decl. Axis

Note:

14

３０. ９ｃｍ

２３ . ７ｃｍ

３６ . ７ｃｍ

４３.９ｃｍ

２. ８ｋｇ＋３.７ｋｇ

２５ｃｍ

２. ８ｋｇ＋３.７ｋｇ

9.0〜12.3kg

(225.3〜309.6kg・cm)

２４ . ７ｃｍ

４３.９ｃｍ

３.７ｋｇ

２５ｃｍ

３.７ｋｇ

5.4〜8.2kg

(136.0〜206.9kg・cm)

２５ｃｍ

２３ .１ｃｍ

４２ .６ｃｍ

２５ｃｍ

２２ . ７ｃｍ

４１.９ｃｍ

２３ . ７ｃｍ

４２ . ９ｃｍ

１.０ｋｇ

１.９ｋｇ

２. ８ｋｇ

１.０ｋｇ

２５ｃｍ

１.９ｋｇ

２. ８ｋｇ

1.2〜1.7kg

(31.0〜44.5kg・cm)

2.7〜3.4kg

(67.8〜44.5kg・cm)

3.5〜4.9kg

(87.8〜124.1kg・cm)

4.4〜6.5kg

(111.0〜164.6kg・cm)

２８.９ｃｍ

２２ . ７ｃｍ

３７. ７ｃｍ

４３.９ｃｍ

１.９ｋｇ＋３.７ｋｇ

２５ｃｍ

１.９ｋｇ＋３.７ｋｇ

7.7〜11.1kg

(194.7〜278.5kg・cm)

PREPARATION

Tips on Proper Balancing

No counterweight:

from 1.2kg (2.6 lbs.) up to 1.7kg (3.7 lbs.)

One 1.0kg (2.2 lbs) only:

from 2.7kg (5.9 lbs.) up to 3.4kg (7.5 lbs.)

One 1.9kg (4.1 lbs) only:

from 3.5kg (7.7 lbs.) up to 4.9kg (10.8 lbs.)

One 2.8kg (6.1 lbs) only:

from 4.4kg (9.7 lbs.) up to 6.5kg (14.3 lbs.)

One 3.7 kg (8.1 lbs)only:

from 5.4kg (11.9 lbs.) up to 8.2kg (18 lbs.)

One 3.7kg (8.1 lbs) and one 1.9kg (4.1 lbs):

from 7.7kg (16.9 lbs.) up to 11.1kg (24.4 lbs.)

One 3.7kg (8.1 lbs) and one 2.8kg (6.1 lbs):

from 9.0kg (19.8 lbs.) up to 12.3kg (27.1 lbs.)

The balance arrangements below illustrate various possible settings, depending on the length and weight of your optical tube. The center

of gravity of the telescope is given as 25cm from the intersection of the RA and DEC axes.

15

Connecting to the Mount

Note:

*

Hold the connector part of the STAR BOOK cable securely and pull it straight when you unplug the cable. Unplugging by grabbing the

cable part may cause a wire to break.

*

Never connect the STAR BOOK cable to other equipment such as a PC. It may cause failure, fire or electrical shock. (The STAR

BOOK cable does not meet the RS232C specifications.)

*

Do not bundle or bend the STAR BOOK cable forcedly. It may cause a wire to snap.

Note:

*

When unplugging the power cable, be sure to hold the connector part and pull it straight. Unplugging by grabbing the cable part may

cause a wire to snap.

*

Avoid pulling or bending a part of the power cable adjacent to the connectors. It may cause a wire to snap.

*

Do not use the power cable in a folded and tied condition. It may cause electrical shock or fire.

Specifications:

DC12V EIAJ RC5320A

Class4 center positive (+) polarity

1

2

PREPARATION

Connecting the STAR BOOK Cable

Plug one end of the STAR BOOK cable, where no ferrite core is

attached, into the connecting port on the mount for the controller

cable.

Secure the connector with the setscrews.

Connecting the Power Cable

Connecting to the STAR BOOK ONE

1

2

Plug the other end of the STAR BOOK cable, where the ferrite core is attached, into the connecting

port on the STAR BOOK ONE for the controller cable.

Secure the connector with the setscrews.

2211

Use an optional AC Adapter 12V-3A or portable power supply with

the supplied cigarette-lighter plug cord.

The portable power supply is sold separately.

Confirm that the power switch is turned OFF (i.e. the O mark on the

switch is depressed) before you plug the power cable to the DC12V

input of the mount.

Controller Connecting Port

Setscrews

Controller Connecting Port

Setscrews

16

StarBook

ONE V

Mount

SX2

Star

N x999

Language

English

Language

ニホンコ゛

BASIC OPERATION

Power SwitchPower Switch

1

2

The power switch is located on the bottom of the declination body of the mount. To turn

on the power, press the side marked I on the switch and to turn off the power, press the

O marked side on the switch.

The mount starts the celestial tracking at the same time the power is ON although it

seems the mount stands still.

The initial screens below appear on the display of the STAR BOOK ONE as you turn on the power switch.

Pressing the Display key illuminates that key and the setting screen* is displayed.

*The setting screen used with the last setting will appear if you press the key.

First, designate the language you use.

2. In the setting screen, choose “Language” with the left or right direction key.

The setting is defaulted to “English”

You can choose “Japanese” language with the up or down key (or plus or minus key also).

Turning ON the Power

Setting 言語/Language

11

Note:

1

2

3

version

17

Star

N ×999

Star

N ×30

Star

N ×1.0

Star

N ×0.5

Star

N x999

BASIC OPERATION

Make sure that the SX2 mount is turned on

and the R.A and DEC clamps on the mount

are locked tightly.

Move the telescope in the direction of R.A with the left and right direction keys and in

the direction of DEC with the up and down keys respectively.

You can move the telescope at different speeds through use of the direction keys.

While both the Mount and Display keys are inactive with no illumination, pressing the Plus

key will accelerate theslewing speed and pressing the Minus key will decelerate the

slewing speed.

Defaultslewing speed: 999x of the sidereal rate at a maximum, and it is slow down to 30X,

1.0X and 0.5X of the sidereal rate by step. The slewing speed can be changed between

0.5X and 999X of the sidereal rate.

Slewing the Telescope

1

2

DEC clamps

R.A clamps

DEC clamps

R.A clamps

Changing the Slewing Speed

X999

It is useful to choose this option when you dramatically change the telescope’s pointing direction. You

can move the telescope by loosening the clamp levers on the mount in combination with use of this

setting. Be sure to tighten the clamp levers again after slewing the telescope manually.

X30

Use this option when you bring your target object in the crosshairs in the field of view of the finder

scope. The telescope moves slowly.

X10

Choose this option when you correct a position of the object in the field of view of the telescope as

it makes you move the telescope very slowly.

X0.5

Choose this option when you use the telescope with high magnification. The telescope moves

extremely slow.

First, you need to accustom yourself to the basic operation of the equatorial mount.

DEC Axis

Polar Axis

M

o

v

e

s

i

n

t

h

e

D

E

C

d

i

r

e

c

t

i

o

n

M

o

v

e

s

i

n

t

h

e

R

.

A

.

d

i

r

e

c

t

i

o

n

18

Star

N x999

TrackSpd

Star

TrackSpd

Stop

Star

N x999

TrackSpd

Star

TrackSpd

StarX0.1

BASIC OPERATION

Try observing landscape in daylight first in order to understand the movements of the SX2 mount and the filed of view of your finder

scope and telescope.

The mount starts celestial tracking at the same time the power is ON. You need to stop the tracking using the following procedure to

view terrestrial objects.

Press the MOUNT button to enter the mount menus. Choose “TrackSpd Star” with the left or right direction key and choose “TrackSpd

Stop” with the up or down key. Press the MOUNT button again to leave the menu.

With the finder scope aligned and the eyepiece attached, you are ready to use the telescope with your SX2 mount for your celestial

observation in the night sky. Let’s begin by observing a bright and easy-to-find object, the Moon at moderate magnification.

It is recommended to choose the tracking speed at “StarX0.1” in the menu.

Terrestrial Viewing

Observing the Moon

19

BASIC OPERATION

Rough Alignment of the Mount

After setting up the telescope, locate the SX2 mount so that its R.A. axis points toward the north celestial pole, if you use the

telescope in the northern hemisphere. A rough setting with a compass or pointing at Polaris will work well for visual observation.

If your intention is to take lengthy astrophotography, however, you must align the R.A. axis to the celestial pole. This requires the

use of the SX Polar Axis Scope sold separately.

In this section a rough Polar alignment using the finder scope is described. The finder scope of your telescope must be aligned

accurately before you start aligning the mount.

While looking for Polaris in the finder scope’ s field of view, adjust the mount with the azimuth adjustment screws and altitude

adjustment knob so that Polaris comes to the center of the finder scope’s field of view (an intersection point of the crosshairs).

Turn the altitude adjustment knob so

that the elevation of the R.A. axis

matches the latitude of your observing

site.

Turn the azimuth adjustment screws so

that Polaris comes to the center.

Loosening the azimuth adjustment

screw on one side will allow you to

tighten the screw on the other side.

Thus the direction in azimuth can be

changed.

Bring Polaris into the center of the

finder scope’s field of view to finish.

Make sure that the R.A and DEC lock clamps on the mount are tightend securely.

Point the mount toward the north celestial pole in the northern hemisphere as

shown in the figure.

Loosen the R.A and DEC lock clamps and position the telescope’ s optical tube so

that it points toward the north. The home position guideposts marked on the mount

are useful to position the telescope in place.

1

2

3

4

Polaris

R.A clamp

DEC clamp

North

Polar Axis

Guidepost

Altitude Adjustment Knob Azimuth Adjustment Knob

Finder Field of view Finder Field of view

20

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