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Promax GV-698, Инструкция по эксплуатации

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Promax GV-698 Скачать руководство пользователя страница 26

- 70 -

Figure 11.-

 Logo board location.

-

Replace the current EPROM by the one included in the personalized logo.

Figure 12.-

 EPROM position.

-

Be sure the IC notch agrees with the one drawn in the silkscreen print of the
PC board.

-

Carefully insert pins properly in the socket.

-

In connecting the logo generating card again, special care is to be given in
matching all board pins with card connectors (VERY IMPORTANT).

-

Set the board fastening bar again.

-

Lock the unit.

WARNING: PROMAX S.A. is not responsible for damages, whether in the logo
generator or the GV-698, occurred because of a wrong memory inserting in its
socket.

05/96

GV-698

Содержание GV-698

Страница 1: ...s the electronic circle can be inserted in all the charts To detect defects in the tuning circuits and IF amplifier stages the GV 698 has a complete radio frequency modulator its principal characteris...

Страница 2: ...the TELETEXT and VPS signals During recent years there has been a growing acceptance of TELETEXT on the part of users and the majority of television sets incorporate it With the GV 698 it is possible...

Страница 3: ...2 s Duration of impulse of Pre equalization 2 5 H 3 H Equalization 2 5 H 3 H Post equalization 2 5 H 3 H Scanning of picture Selectable Interlaced ratio 2 1 Not interlaced PAL B G H D I colour subcarr...

Страница 4: ...system channel and frequency 5 digits indications Program indicated in the Store Recall mode RADIO FREQUENCY OUTPUT Range covered 37 to 865 MHz synthesized Tuning By frequency in steps of 50 kHz By c...

Страница 5: ...ector Euroconnector EXTERNAL L F SOUND INPUT Impedance 100 k Amplitude Max 0 5 Vpp Bandwidth 100 Hz to 15 kHz Connector DIN 41524 or Euroconnector SOUND MODULATION MULTISTANDARD MONO Carrier sinc fH O...

Страница 6: ...lag ON Signal coding 32 samples block 16 blocks Transmission speed 728 kbits s Pre emphasis In accord with CCITT Rec J17 Spectrum form 40 roll off cosine PAL B G 100 roll off cosine PAL I TELETEXT GEN...

Страница 7: ...ally up to 50 at 40 C MECHANICAL FEATURES Dimensions W 288 x H 102 x D 247 mm Weight 3 kg ACCESSORIES INCLUDED 90901207 BNC TV coaxial cable CC 07 90901105 Mains cable CA 05 0 FS0060 1A F 250 V spare...

Страница 8: ...0296984 OPT 698 4 NICAM sound NOTE According to I E PROMAX s information the NICAM sound transmission system has by now been adopted by the following countries NICAM B G NICAM I NICAM L Spain United K...

Страница 9: ...ings both of supply and measurement Remember that voltages higher than 60V DC or 30V AC rms are dangerous Use this instrument under the specified environmental conditions The user is only authorized t...

Страница 10: ...CURRENT DIRECT AND ALTERNATING GROUND TERMINAL PROTECTIVE CONDUCTOR FRAME TERMINAL EQUIPOTENTIALLITY ON Supply OFF Supply DOUBLE INSULATION PROTECTED Class II Protection CAUTION Risk of electric shoc...

Страница 11: ...r 230 240 V AC 50 to 60 Hz Mains operating voltage can be selected at the rear panel Figure 1 Selection of mains voltage 1 Pull out the fuseholder lid 2 Set the proper fuse for the desired mains volta...

Страница 12: ...transformer Non observance of this norm may cause damage to the instrument and or produce damage to the operator 3 3 Installation and start up The equipment is prepared for use as desk top equipment...

Страница 13: ...RT VPS signal information start stop selection button 13 PRG VPS signal information program standby selection button 14 TXT VPS OFF Teletext and VPS signal suppression button 15 R OFF R channel suppre...

Страница 14: ...SYNC G G synchronisms ON OFF selector 38 S VHS output 39 POLARITY Synchronisms output polarity selector 40 LF MODULATION External LF input connector 41 SOUND Internal external LF selector 4 2 Using th...

Страница 15: ...de the abbreviated denomination will appear and on the right a complete description of the equipment system at that moment 2 Select the desired system by means of the TUNE SELECT rotary selector 7 The...

Страница 16: ...n follow the instructions below 1 Select all chart system standard channel frequency that which you wish to store see items 4 2 1 4 2 5 4 2 6 and 4 2 7 2 Press the STO button corresponding to the grou...

Страница 17: ...the process will be completed The entire configuration stored chart system standard channel frequency will be updated within the equipment 4 2 4 Rotary selector Figure 5 Selection of the function of...

Страница 18: ...ll be consecutively selected The channels appear arranged according to frequency standard TV and cable TV channels The television channels are indicated by C and a number For instance TV channel 41 wo...

Страница 19: ...raster D3 Blue raster D4 RGB Group E Colour demodulator control phase and delay line E1 Antipal with split field 50 luminance Adjustment of phase delay line and colour demodulators E2 Axes and antipal...

Страница 20: ...FF 22 press this button to suppress the burst of the composite video signal and enable the correct operation of the colour killer in the receivers to be checked In a correctly adjusted TV receiver no...

Страница 21: ...n of the digital information corresponding to the L channel in NICAM R OFF 15 press this button to suppress the signal which modulates the second carrier in PAL ZWEITON or the selection of the digital...

Страница 22: ...possible to request additional logotypes made according to the customer s specifications OPT 698 1 option The use of a special logotype is of particular interest when it is desired to personalize the...

Страница 23: ...any rate when applying for a logo some questions should be taken into account Logos are located in fixed positions in the charts Sizes and dimensions are described hereafter a Chart A1 Figure 6 Logo p...

Страница 24: ...gh Logo 1 416 points 64 lines Logo 2 312 points 32 lines Logo 3 52 points 32 lines Table 4 Digitalizer s task will be reduced remarkably if contrast of that logo to be scanned is good Therefore the or...

Страница 25: ...TANT NOTICE If you want to generate a logo it is advisable to attach an original anagram Your anagram may be picked out from any business card or document it gives a very useful additional information...

Страница 26: ...e PC board Carefully insert pins properly in the socket In connecting the logo generating card again special care is to be given in matching all board pins with card connectors VERY IMPORTANT Set the...

Страница 27: ...71 4 6 3 Letter type The letter types available are the fonts of general use in Windows i e Arial Courier Times New Roman etc 05 96 GV 698...

Страница 28: ...72 05 96 GV 698...

Страница 29: ...ty of this video signal Given that a broadcasting station uses vestigial sideband transmission the correct tuning frequency corresponds If it is tuned to the TV to higher frequency If it is tuned to t...

Страница 30: ...loscope has an automatic TV filter connected to the time base switch like all PROMAX models it is possible to pass from the horizontal frequency to the vertical without losing the synchronism 5 5 R G...

Страница 31: ...ket 38 on the rear panel Separate luminance and chrominance outputs used in the S VHS system are available Their use as a high quality video standard is becoming more and more widespread and the quant...

Страница 32: ...el audio output 4 Audio ground 5 Blue ground B 6 Left channel audio input 7 Blue output B 8 Switching voltage not connected 9 Green ground G 10 Interface bus digital not connected 11 Green output G 12...

Страница 33: ...the system transmitted by the C is responsible for the generation of all the synchronisms signals the colour carrier and auxiliary signals employed by other modules of the equipment A PLL circuit is r...

Страница 34: ...ge oscillator LF input stage pre emphasis filters of 50 s and 75 s and LF signal switching Sound carrier generator and FM modulator synchronized with the line frequency programmable counter depending...

Страница 35: ...uitably polarized in order to achieve the best possible modulation over the wide range of frequencies covered by the generator The carrier frequency is generated by voltage controlled oscillators vari...

Страница 36: ...80 05 96 GV 698...

Страница 37: ...he fuseholder lid be careful that the voltage selector is in the correct position according to the mains 7 2 Cleaning recommendations CAUTION To clean the cover take care the instrument is disconnecte...

Страница 38: ...LONA SPAIN LOGO ORDERING CARD Please send and EPROM memory containing the logo described in the following template for the text and logotype generator of the GV 698 SAMPLE TEMPLATE Logo 1 Logo 2 Logo...

Страница 39: ...LONA SPAIN LOGO ORDERING CARD Please send and EPROM memory containing the logo described in the following template for the text and logotype generator of the GV 698 SAMPLE TEMPLATE Logo 1 Logo 2 Logo...

Страница 40: ...84 05 96 GV 698...

Страница 41: ...ion buttons which modify the composite video signal 64 4 4 Function buttons which modify the sound modulation 65 4 5 Function buttons which operate on the Teletext and VPS signals 65 4 6 Logotype gene...

Страница 42: ...44 05 96 GV 698...

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