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EN

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Bosch Security Systems | 10 June 2004

LTC 2915/91, LTC 2917/91, & LTC 2919/90 | 

Instruction Manual

Important Safeguards

Important Safeguards

1.

Read, Follow, and Retain Instructions

- All safety

and operating instructions should be read and
followed before operating the unit. Retain instructions
for future reference.

2.

Heed Warnings

- Adhere to all warnings on the unit

and in the operating instructions.

3.

Attachments

- Attachments not recommended by

the product manufacturer should not be used, as they
may cause hazards.

4.

Installation Cautions

- Do not place this unit on an

unstable stand, tripod, bracket, or mount. The unit
may fall, causing serious injury to a person and
serious damage to the unit. Use only manufacturer-
recommended accessories, or those sold with the
product. Mount the unit per the manufacturer's
instructions. Appliance and cart combination should
be moved with care. Quick stops, excessive force, or
uneven surfaces may cause the appliance and cart
combination to overturn.

5.

Cleaning

- Unplug the unit from the outlet before

cleaning. Follow any instructions provided with the
unit. Generally, using a damp cloth for cleaning is
sufficient. Do not use liquid cleaners or aerosol
cleaners.

6.

Servicing

- Do not attempt to service this unit

yourself. Opening or removing covers may expose
you to dangerous voltage or other hazards. Refer all
servicing to qualified service personnel.

7.

Damage Requiring Service

- Unplug the unit from

the main AC power source and refer servicing to
qualified service personnel under the following
conditions:
• When the power supply cord or plug is damaged.
• If liquid has been spilled or an object has fallen

into the unit.

• If the unit has been exposed to water and/or

inclement weather (rain, snow, etc.).

• If the unit does not operate normally, when

following the operating instructions. Adjust only
those controls specified in the operating
instructions. Improper adjustment of other controls
may result in damage, and require extensive work
by a qualified technician to restore the unit to
normal operation.

• If the unit has been dropped or the cabinet

damaged.

• If the unit exhibits a distinct change in

performance, this indicates that service is needed.

8.

Replacement Parts

- When replacement parts are

required, the service technician should use
replacement parts specified by the manufacturer or
that have the same characteristics as the original part.
Unauthorized substitutions may result in fire,
electrical shock or other hazards.

9.

Safety Check

- Upon completion of servicing or

repairs to the unit, ask the service technician to
perform safety checks to ensure proper operating
condition.

10.

Power Sources

- Operate the unit only from the type

of power source indicated on the label. If unsure of
the type of power supply to use, contact your dealer
or local power company. 
• For units intended to operate from battery power,

refer to the operating instructions. 

• For units intended to operate 

with External Power

Supplies

, use only the recommended approved

power supplies. 

• For units intended to operate with a limited power

source, this power source must comply with
EN60950. Substitutions may damage the unit or
cause fire or shock.

• For units intended to operate at 24VAC, normal

input voltage is 

24VAC

. Voltage applied to the

unit's power input should not exceed 30VAC. 
User-supplied wiring, from the 24VAC supply to
unit, must be in compliance with electrical codes
(Class 2 power levels). Do not ground the 24VAC
supply at the terminals or at the unit's power
supply terminals.

11.

Coax Grounding

- If an outside cable system is

connected to the unit, ensure that the cable system is
grounded. U.S.A. models only - Section 810 of the
National Electrical Code, ANSI/NFPA No.70,
provides information regarding proper grounding of
the mount and supporting structure, grounding of the
coax to a discharge unit, size of grounding
conductors, location of discharge unit, connection to
grounding electrodes, and requirements for the
grounding electrode.

12.

Grounding or Polarization

- This unit may be

equipped with a polarized alternating current line
plug (a plug with one blade wider than the other).
This safety feature allows the plug to fit into the
power outlet in only one way. If unable to insert the
plug fully into the outlet, try reversing the plug. If the
plug still fails to fit, contact an electrician to arrange
replacement of the obsolete outlet. Do not defeat the
safety purpose of the polarized plug.
Alternately, this unit may be equipped with a 
3-wire grounding plug (a plug with a third pin, for
grounding). This safety feature allows the plug to fit
into a grounding power outlet only. If unable to insert
the plug into the outlet, contact an electrician to
arrange replacement of the obsolete outlet. Do not
defeat the safety purpose of the grounding plug.

13.

Lightning

- For added protection during a lightning

storm, or when this unit is left unattended and
unused for long periods of time, unplug the unit from
the wall outlet and disconnect the cable system. This
will prevent damage to the unit due to lightning and
power line surges.

Summary of Contents for LTC 2919/90

Page 1: ...LTC 2915 91 LTC 2917 91 LTC 2919 90 Instruction Manual EN Color Video Monitors Photo inset shows LTC 2919 90 with rack mount kit installed sold separately ...

Page 2: ...re electrical shock or other hazards 9 Safety Check Upon completion of servicing or repairs to the unit ask the service technician to perform safety checks to ensure proper operating condition 10 Power Sources Operate the unit only from the type of power source indicated on the label If unsure of the type of power supply to use contact your dealer or local power company For units intended to opera...

Page 3: ...e care should be taken to keep from touching power lines or circuits as this contact might be fatal U S A models only refer to the National Electrical Code Article 820 regarding installation of CATV systems For Rack mount Product 1 Ventilation This unit should not be placed in a built in installation or rack unless proper ventilation is provided or the manufacturer s instructions have been adhered...

Page 4: ... eléctrica siempre que el cable de alimentación esté conectado a la fuente de alimentación Sin embargo la unidad sólo funciona cuando el interruptor está en la posición de encendido El cable de alimentación es la principal fuente de desconexión de todas las unidades PRECAUCIÓN PARA DISMINUIR EL RIESGO DE DESCARGA ELÉCTRICA NO RETIRE LA CUBIERTA NI LA PARTE POSTERIOR NO EXISTEN PIEZAS DE RECAMBIO E...

Page 5: ... tuttavia in funzione solo quando l interruttore ON OFF si trova nella posizione ON Il cavo di alimentazione costituisce il dispositivo di scollegamento dell alimentazione principale per tutte le unità ATTENZIONE PER RIDURRE IL RISCHIO DI SCOSSE ELETTRICHE NON RIMUOVERE LA COPERTURA O IL PANNELLO POSTERIORE L UNITÀ NON CONTIENE COMPONENTI INTERNI RIPARABILI DALL UTENTE PER QUALSIASI INTERVENTO RIV...

Page 6: ...rs 7 1 2 Unpacking 7 1 3 Accessories 7 2 SERVICE 7 3 ILLUSTRATIONS 8 4 INSTALLATION 10 4 1 Ventilation 10 4 2 Power 10 4 3 Connecting Composite Video Signal to the Monitor 10 4 4 Connecting Y C S video Signal to the Monitor 10 4 5 Connecting Audio to the Monitor 10 5 OPERATION 11 5 1 Front Panel Controls 11 5 2 On screen Display OSD Menu 11 6 SPECIFICATIONS 13 6 1 Electrical 13 7 TROUBLESHOOTING G...

Page 7: ...the following items LTC 2915 91 LTC 2917 91 or LTC 2919 90 Color Video Monitor Two 2 Power Cords One 1 for 120VAC 60Hz mains power one 1 for 230VAC 50Hz mains power Instruction Book this document 1 3 Accessories Not Included LTC 9113 00 Rack Kit For mounting one LTC 2915 91 monitor in a 19in standard EIA rack LTC 9117 00 Rack Kit For mounting one LTC 2917 91 monitor in a 19in standard EIA rack LTC...

Page 8: ...917 91 LTC 2919 90 Instruction Manual Illustrations In In Out Out Y C Out Y C In Video 3 ILLUSTRATIONS In In Out Out Video Y C Out Y C In Figure 2 Connecting a Single Monitor Figure 1 Monitor Models LTC 2915 91 LTC 2917 91 and LTC 2919 90 Front and Rear Views ...

Page 9: ...919 90 Instruction Manual Illustrations Y C Out Y C In Video In Out Video Y C Out Y C In In Out In Out In Out In Out Video Y C Out Y C In In Out In Out Video Y C Out Y C In In Out Figure 3 Outputting Video Signal to an External Device Figure 4 Connecting Multiple Monitors ...

Page 10: ... end of the power cord plugs into mains input socket Figure 1 Item 11 on the rear panel The monitor automatically adjusts to either power input voltage A power ON OFF switch is located on the front of the unit Figure 1 Item 7 4 3 Connecting Composite Video Signal to the Monitor The four 4 BNC connectors Figure 1 Item 9 located on the rear of the monitor are for composite video inputs and outputs N...

Page 11: ...ht or increases adjustment levels A 3 Selects the video input A to be displayed B 4 Selects the video input B to be displayed Y C 5 Selects the video input Y C S video to be displayed SEQ 6 Selects all three video inputs A B Y C S video to be displayed in sequence Displaying duration is set using the OSD menu Dwell Time NOTE All video inputs selected for sequence mode must be connected prior to ap...

Page 12: ... Adjusts the volume level for the audio inputs See the OSD Volume menu configuration below Under Scan Selects the underscan display size The Under Scan option reduces the picture size so that the entire image is displayed on the screen See the OSD Under Scan menu configuration below Sharpness Adjusts the sharpness level for video performance See the OSD Sharpness menu configuration below Exit Sele...

Page 13: ...nbalanced to Hi Z with passive loop through operation Y C Y Signal 0 7Vp p C Signal 0 3Vp p auto terminating 75Ω unbalanced to Hi Z with loop through operation Audio Input 1V line level Audio Output Loop through line level 1W speaker Mechanical Cabinet Material Steel with plastic front Finish Charcoal Dimensions LTC 2915 91 356W x 382D x 333H mm 14 x 15 x 13 1in LTC 2917 91 405W x 406D x 370H mm 1...

Page 14: ...generating a strong magnetic field Move the device away from the monitor until picture stabilizes No Color Incorrect Color or Dark Color The picture control setting e g Tint Color Brightness or Contrast may be set improperly Reset each picture control setting to the mid range level or restore the factory DEFAULT setting in the OSD menu Unnatural Color Irregular Color or Distorted Picture The monit...

Page 15: ...LTC 2915 91 LTC 2917 91 LTC 2919 90 Instruction Manual EN 15 Bosch Security Systems 10 June 2004 ...

Page 16: ...rity Systems Inc 850 Greenfield Road Lancaster PA 17601 USA Tel 800 326 3270 Fax 1 717 735 6560 www boschsecuritysystems com Bosch Security Systems B V P O Box 80002 5600 JB Eindhoven The Netherlands Tele 31 40 27 80000 Bosch Security Systems Pte Ltd 38C Jalan Pemimpin Singapore 577180 Republic of Singapore Tel 65 6 319 3486 ...

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