Usl JSD-80 Скачать руководство пользователя страница 36

Страница: 36 / 39

USL, Inc.

JSD-80 Instruction Manual

Page 36

3rd Edition. February, 2006

Power ampliﬁ er or

speaker

Press several format

buttons

Try NON/SYNC

MUSIC

STEREO mode

Exciter lamp

Stray light pickup at

the solar cell on the

projector

PREAMP Module

Wiring between the

processor and power

ampliﬁ ers

INPUT module

LED indicators on

INPUT module

Try to determine if distortion is in one or

all channels. If distortion is one channel,

exchange power ampliﬁ ers or speaker lines

to locate problem.

Try to determine if one or all formats are

distorted.

If MUSIC is not distorted, the problem is

in the input module or the SOLAR CELL

alignment.

If there is distortion only in this mode then

there could be a problem in the input module.

Make sure correct lamp is used. There are

vertical and horizontal versions of many

exciter lamps. Soundhead misalignment can

cause distortion.

Eliminate source of stray light.

Eliminate cause of hum ground loops, bad

exciter lamp supply, JSD unit located too

near hum ﬁ eld from power ampliﬁ er or

another piece of equipment.

The Input may have some high frequency

oscillation. Check the Solar Cell wiring. Make

certain that the lines are not routed too close

to the Power Ampliﬁ er or Loudspeaker wiring.

It may be necessary to re-route the cell lines.

If in doubt remove wires from the backboard

and short the input. If this does not solve the

problem, replace the Input module.

If only the left or right LED indicator is lit with

program material, check the projector wiring

and input module.

PROBLEM

CHECK

SOLUTION

SOUND IS

DISTORTED

HUM IN ALL

CHANNELS

BUZZING SOUND

IN ALL CHANNELS,

MAINLY

THE SURROUNDS

STEREO MODE-

SOUND FROM LEFT

OR RIGHT CHANNEL

ONLY

Содержание JSD-80

Страница 1: ...oftware 19 7 1 Installation Procedure 7 2 Opening screen 7 3 Pro le Screen 7 4 Formats Screen 7 5 Inputs Screen 7 6 Equalizer Screen 7 7 Outputs Screen 7 8 Slit Eq Analyzer 7 9 Creating Saving and Loa...

Страница 2: ...are satis ed does not conform with the foregoing warranty and which is returned to our fac tory freight paid or serviced by one of our authorized contractors The foregoing warranty is exclusive and i...

Страница 3: ...uct Do Not Operate this Product Near Heat Sources This product should not be located near heat sources such as radiators heat registers or stoves Provide Proper Ventilation The oper ating temperature...

Страница 4: ...ne du service de l usine comp tente est autoris e pour r parer ce produit N op rez pas ce Produit Sources de la Chaleur Proches Ce produit ne devrait pas tre localis de sources de la chaleur proches t...

Страница 5: ...mit diesem Produkt rufen Sie die Fabrik Versuchen Sie keine Reparatur Nur eine erzogen Fabrik Dienst Person wird erm chtigt dieses Produkt zu reparieren Operieren Sie dieses Produkt Nahe Hitze Quelle...

Страница 6: ...and high frequency boost controls and emergency backup circuitry Stereo line level inputs for Non Sync with fade in plus an Auxiliary input The Microphone input is for public address use 100 digital A...

Страница 7: ...Section 12 Power Input 100 240 V AC 50 60 Hz 360 mA JSD 80 Cinema Sound Processor 1 4 Technical Speci cations Rack mount chassis frame construction with plug in modules accessible behind removable fr...

Страница 8: ...F Immunity EN61000 4 7 Voltage Dips Short Interrup tions and Variations Certi cations Low Voltage Directive 73 23 EEC EN EN60950 Information Technology Video and similar Electronic Apparatus Safety Re...

Страница 9: ...lectrical system ground Defeating this ground by removing the ground prong is not recommended 2 2 System Cooling and Ventilation Important Care should be taken to insure the JSD 80 has adequate ventil...

Страница 10: ...USL Inc JSD 80 Instruction Manual Page 10 3rd Edition February 2006 Section 3 Block Diagrams Section 3 Block Diagrams 3 1 Audio Block Diagram...

Страница 11: ...USL Inc JSD 80 Instruction Manual Page 11 3rd Edition February 2006 3 2 3 2 Two Channel Analog Input Block Diagram...

Страница 12: ...USL Inc JSD 80 Instruction Manual Page 12 3rd Edition February 2006 3 3 Eight Channel Eight Channel Input Block Diagram Ext 1 Ext 2...

Страница 13: ...USL Inc JSD 80 Instruction Manual Page 13 3rd Edition February 2006 3 4 Control Block Diagram Diagram...

Страница 14: ...ed output circuitry Two high power DSPs implement seven channels of 1 3 octave equalization plus a parametric subwoofer equalizer Test points on each channel permit connection of diag nostic instrumen...

Страница 15: ...ans that the signal is too high 7 When the left indicator is green press the Mute button to signal OK The dis play will change to 1 2 Projector 1 Right Channel Adjust the main fader until the right 10...

Страница 16: ...USL Inc JSD 80 Instruction Manual Page 16 3rd Edition February 2006 Section 6 Back Panel 6 1 Rear Wiring Diagram...

Страница 17: ...inals are for the balanced medium low impedance microphone inputs The shield of the micro phone cable should be connected to chassis ground on pin 5 A 9 V DC power pin allows easy connection of electr...

Страница 18: ...e of the main input formats The Automation common terminal is iso lated from the system ground through an internal 10 Ohm resistor to minimize ground loop problems Note When wiring the automation in p...

Страница 19: ...ion of the icon The horizontal slider at the far right is the main level control or Main Fader The level may be changed from the main screen by placing the cursor over the slider holding down the left...

Страница 20: ...Section 8 8 7 5 Inputs Screen There are two sections The rst section is the Preamp Controls sec tion and contains buttons to select either Projector 1 or 2 level settings for the Left and Right preamp...

Страница 21: ...ith an accompany ing arrow You can move the numbers and the screen up to view the signal down to a level of 50 dB and up to 20 dB if so desired Double click on the screen and it expands to a larger re...

Страница 22: ...red on the JSD 80 to the laptop s memory This data can consist of Preamp Parameters EQ Parameters Front Panel Parameters and Pro le Information Once that action has taken place the small window will c...

Страница 23: ...ary raise or lower the lamp and move it in and out until the lament is centered in the spot of light This will insure that the slit is evenly illuminated thereby producing the least distortion in play...

Страница 24: ...eamp controls so the gain is at the midpoint and the high frequency boost lters are at the maximum frequency 32 kHz This can be accomplished from the JSD Laptop Interface Software Connect a dual trace...

Страница 25: ...adjust the SLIT EQ slider until the re sponse is at to 12 kHz 1 dB 8 3 Sum and Difference mode No Oscilloscope required When running a Cat 69P Pink Noise loop on the projector precisely adjust the le...

Страница 26: ...for Projector 2 using trimpot 2 When the JSD 80 power switch is in the off position and the emergency backup power supply is present the main fader will control the bypass level 8 5 Optical Surround...

Страница 27: ...S PDIF Input in the Aux format Note The system supports either an analog or digital input for Aux but not both When selecting S PDIF the Digital Delay box will appear below Input Type Since there is...

Страница 28: ...tal Delay will appear The Input De lay slider controls the overall time delay required to compensate for various video projectors For example a typical DLP pro jector requires about 80 ms delay Consul...

Страница 29: ...ft Surround Right Sur round Left Center Right Center or Back Surround Left Back Surround Right Before proceeding with the room equaliza tion it is imperative that the loudspeaker and crossover systems...

Страница 30: ...verall shape of the auditorium response After making the EQ adjustments it may be necessary to ne tune the output level setting 4 Repeat the tuning procedure for the center right and additional channe...

Страница 31: ...re adding rather than subtracting Set the nal subwoofer level so that its horizontal display 20 100 Hz is 10 dB ABOVE the horizontal display of the center channel on the REAL TIME ANALYZER 9 5 Optical...

Страница 32: ...ersonality Module The personality module will provide a backup restore option in case of catastrophic pro cessor failure Make sure a Personality Module is present in the JSD 80 Module is present in th...

Страница 33: ...ity Module 1 If the control card is the module that has failed you will need to remove the Personality Module from it and insert it into the replace ment control card from USL If the input or output c...

Страница 34: ...n gured with the following matrix decoding options 5 1 Stereo 2 0 Stereo or Mono The 5 1 stereo option is the default setting The 2 0 stereo option is for either Left Right stereo or Center Surround s...

Страница 35: ...ampli er speaker or wiring If all front channels work then the problem is in the JSD unit Check different formats to determine if only one format has a problem Refer to later section in TROUBLESHOOTI...

Страница 36: ...t lamp is used There are vertical and horizontal versions of many exciter lamps Soundhead misalignment can cause distortion Eliminate source of stray light Eliminate cause of hum ground loops bad exci...

Страница 37: ...uter on battery power When the Word Clock is missing on the Left Right channel pair the front LED will ash indicating a fault of the external device It will also ash if there is no external device con...

Страница 38: ...nd 14 Out L 15 Chassis Gnd 16 Out LC 17 Out C 18 Chassis Gnd 19 Out RC 20 Out R 21 N C 22 Chassis Gnd 23 Out LS 24 Out RS 25 Out SW Ext 1 Analog DB 25F Ext 1 Analog DB 25F 1 Analog Gnd 2 In Rs 3 Analo...

Страница 39: ...SUBWOOFER level and frequency with 35mm pink noise lm the sub woofer level in MONO should line up horizontally with the center channel display on the RTA measuring the au ditorium 6 Set SURROUND leve...

Результаты поиска

Содержание JSD-80

Отзывы:

Похожие инструкции для JSD-80

Бренды по названию

Популярные бренды

Usl JSD-80, Руководство пользователя

Результаты поиска

Содержание JSD-80

Отзывы:

Похожие инструкции для JSD-80

Бренды по названию

Популярные бренды