Section 2 Installation Contents: 2.1 Operating environment 2.2 Preliminary operations 2.3 Remote socket connections 2.4 RS232 Socket connections 2.5 Menu description 2.6 Protection thresholds, alarms and settings 2.7 Channel change procedure 2.
.1 OPERATING ENVIRONMENT The transmitter can be installed in a standard component rack or on a suitable surface such as a bench or desk. In any case, the area should be as clean and well-ventilated as possible. Always allow for at least 2 inches of clearance under the unit for ventilation. If you set the device on a flat surface, install spacers on the bottom cover plate. If you install the unit in a rack, provide adequate clearance above and below. Do not position the unit above a hot piece of equipment.
WARNING FOR ELECTRICAL SAFETY REASONS AND IN ORDER TO KEEP THE UNIT SAFE, THE GROUND TERMINAL OF THE TRANSMITTER MUST BE CONNECTED TO THE EXISTING GROUNDING SYSTEM AND NOT BY USING THE SHIELD OF THE OUTPUT COAXIAL CABLE. 23 REMOTE SOCKET CONNECTIONS 1 lone 2 pond 3 pond . 4 Juno . 5 pond p DRY Socket 8 analog Output Reflated Power 7 Analog Output Forward Power 8 Digital Quip ai GRIND OFF 9 | bout 5V or Flogging ON 2.
2.5 MENU DESCRIPTION TTY TV Transmit. SW Software V 2.0 Seer mere eer eee err? rn Standard Cea mmm ii ET Audio Meter FE mmm FWD Power sw Cee nim Ne— J EY REF Power ow I unmet NS Tempe rat. 35.
re Current Amp 6.4A See min Seen A Voltage Amp 27.
2.6 PROTECTION THRESHOLDS, ALARMS AND SETTINGS In case of breakdown or unlock of one of the Pl Ls, the power of the transmitter is automatically decreased protozoan the “ALARM” indication is shown on the display, which then automatically enters the mem of the faulty parameter. When the alarm disappears, the transmitter is muted on again. After five ON/OFF cycles, the transmitter is blocked with a “FAULT” indication on the parameter which caused the stop.
key. 4. Reposition JP1 on SCHOOLMARM (Display mode). 5. Scroll the "PLL CON" menu to display the lock voltage of the PLL. 6. Adjust C20 (fine) and C31 (coarse) on SCHOOLMARM to lock the PLL ("lock” indication on the display and lock voltage in the middle). 7. Re-tune the channel filter MTGO050AR0 as per the calibration procedure. 28 PREVENTIVE MAINTENANCE To ensure maximum performance and minimum repair trouble, we strongly recommend that you follow the following guidelines for preventive maintenance: 1.
Front panel 1 | Video section 766 BNC Video input 1Vpp £608 adjustable 2 | Sound carrier level adjustment 3 Audio Input 10/6000 Banal Audio trout TV pp adjustable 4 | Three-cell linearity per-corrector 5 | Automatic / Manual level control -3dB Output power with na sync 6 |IF (-DBMS) Link Microprocessor control readings ~ FWD Po war level with lama REF Power lever with alarm Audio meter vt Synge melee « IF Carrier lock status with alarm LO.
Rear panel Power supply socket with Fuse Main switch RF input connector RF Output connector GND Telemarketing socket Noose [Na RS232 Socket
Section 3 Diagram Contents: Component Layout Amplifier module Component list (Mother board) ~{Control board and display) (Vivid VCO Integrated) (40dB UHF Filter) (Interface board) (5W Amplifier module) (2W Amplifier module) (SP-150-24 Switching power supply)
Component list Amplifier module Description SW UHF AMPLIFIER MODULE 2W UHF AMPLIFIER MODULE SMB SOCKET.ON REAR PANEL R114553600 C.
CALIBRATION POINTS Adjustments points description C23 Video carrier oscillator tuning capacitor £26 Audio carrier oscillator tuning capacitor DL1 Locked video IF PLL indication LED DL2 Locked audio IF PLL indication LED DL4 Board power indication LED PLS Modulation section power indication LED DLS Locked local oscillator PLL indication LED DLE Conversion section power indication LED DL? Base band section power supply Indication LED pL8 Enabled linearity per-corrector LED DLY 3dB Power decrease indication LE
J4 SMB IF output signal monitor connector before the mixer M2 SMB 500 RF output signal connector J18 SMB 500 Lora! oscillator output monitor connector Jig SMB 50Q IF Input connector JP Expansion / Compression function selection cell n. 1 J20-21 AGC Voltage measurement test point J23 XLR 6000 Balanced audio input coronation JP1 Jumper for audio carrier activation JP3 Jumper for frequency sufferance selection JP4.
R300 Audio sub-carrier level regulation trimmer R302 Audio input level regulation trimmer R303-304-308 | Knee and inclination phase of the ceiling. 1 R308-207-308 | Knee and inclination phase of the cell n. 2 R309-390-311 | Knee and inclination phase of the cell n. 3 R312 F Gain regulation simmer in normal mode R314 F Gain regulation trimmer in automatic mode R316 IF Gain regulation simmer in automatic mode with ext. amplifier R317 COCCYX Fire tuning Freq. ad}.
CONTROL BOARD AND DISPLAY TECHNICAL CHARACTERISTICS «Analog readings Forward power Reflected power Synchronicity level Audio deviation ‘Heat sink temperature Channel! VCO tuning Final stage working voltage Current absorbed by the final stage ~ Digital controls SPLIFF Lock status Alarm status ON-OFF ~ Programming PITFALL Channel PLL Component layout Indication on analog instrument and numerical with alarm Indication on analog instrumental and numerical with alarm Indication on analog instrument Indication on