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www.fmuser.org 

www.fmuser.org 

 

12 

        If LCD displays picture 1, it means no audio signal input, If LCD displays picture 2, user can 

press  “Select”  key,  entering  variable  status,  and  then,  press  “

”  or  “

”  key,  When  deviation 

appears at the middle,  it means modulation frequency deviation 

±

50KHz. When deviation at the 

full mark, it means 

±

100KHz. 

9.1.3 A/V Ratio Setting 

        Single  click  “Mode”  key  on  the  front  panel,  putting  “LCD”  Display  under  “paging”  status, 

and then ,pressing “

” or “

” key, making window frame at 

 

 

        User  can  press  “Select”  key,  entering  variable  status,  and  then,  pressing  “

”  or  “

”  key 

achieving desirable value, finally.(Suggestion: keep the factory default setting) 

9.1.4 Program Label Setting 

        Single  click  “Mode”  key  on  the  front  panel,  putting  “LCD”  Display  under  “paging”  status, 

and then ,pressing “

” or “

” key, making window frame at 

 

 

        The factory default setting is 8 (A)s. If it is necessary to set program label, user can follow the 

steps below: 

    Program

 

        AAAAAAAA 

    A/V Proportion

 

        - 18.0 dB 

Summary of Contents for FU-300W

Page 1: ...www fmuser org www fmuser org 1 FU 300W TV Transmitter User s Manual...

Page 2: ...ice first 2 A 50 Ohm dummy load or antenna and cable must be connected before turning power on avoiding water going into the connecters or the cable 3 Please read System Control Logic section to fully...

Page 3: ...2 Technical Specifications 5 3 System Structure and Function 6 4 Test Instrument 7 5 Test and Maintenance 8 6 Panel Function Description 8 7 Power on Sequence 9 8 System Control Logic 10 9 Direction...

Page 4: ...ether the machine has connected the ground through the wire and the lead to prevent the electric shock c Use the proper fuse Please use the stipulated type and rating fuse d Provide good ventilation T...

Page 5: ...turn on or turn off TV transmitter by remote command 2 Technical Specifications 2 1 Technical Index 2 1 1 Video Index 1 Video input impedance 75 2 Video input level 1 0Vp p 3 Video modulating rate 87...

Page 6: ...l Specifications RF output connector L16 L27 Casing Size 4U 484mm 172mm 600mm 19Inch Weight Ambient temperature 5 40 Relative Humidity 95 Sea Level Height 4500m 3 System Structure and Function This TV...

Page 7: ...power voltage current temperature and showing working status 4 Test Instrument Name Type Specification Manufacturer Television Generator TSG 271 Tektronix TV Monitoring Receiver PM5696 Philip Video Me...

Page 8: ...nd some of their technical specifications is much higher than the national standards and industry standards 5 1 Performance Test To ZHC515A family TV transmitter video index and RF index need to be te...

Page 9: ...fmuser org 9 the digital FM broadcast transmitter works at a very dirty environment for example a place with much of dust it must be to replace fans ahead of schedule 6 Panel Description 6 1 Front Pa...

Page 10: ...RF output can be controlled by RF Switch which is on the Main Page of the LCD When RF Switch is OFF turn off RF power When RF Switch is ON and the video signal input is normal turn RF power on 8 2 Rem...

Page 11: ...then pressing or key making window frame at If LCD displays picture 1 it means no video signal input If LCD displays picture 2 and video is AGC status modulating degree automatically changes to 87 5...

Page 12: ...on the front panel putting LCD Display under paging status and then pressing or key making window frame at User can press Select key entering variable status and then pressing or key achieving desirab...

Page 13: ...n the front panel putting LCD Display under paging status and then pressing or key making window frame at Frequency 543 25MHz is the video carrier frequency Channel 22ch means current channel is chann...

Page 14: ...r Power Amplifier Cell There is LCD Up key Down Key Enter key on the front panel for user to operate and view parameter of Amplifier Cell Up key Down key Enter key User can select page and save parame...

Page 15: ...2 shows main menu page This page contains the parameter as following RF SWITCH RF switch control select between ON or OFF FWD POWER forward power display only RFL POWER reflected power display only AM...

Page 16: ...ers it should to be enter the SET page FWD POWER forward power RFL POWER reflected power AMP VOLTAGE amplifier voltage DRV CURRENT current of preamp AMP CURRENT current of power amplifier TEMPERATURE...

Page 17: ...rotect Normal forward power is normal Warning forward power is higher than setting power Protected forward power is too high RF power is turned off RFL POWER Normal Warning Protect Protect H Normal re...

Page 18: ...wer is turned off TEMPERATURE Normal Warning Protect Normal temperature is normal Warning temperature is high may cause RF power drop Protected temperature is too high RF power is turned off EXIT retu...

Page 19: ...ideo While output power is normal this lamp is light 10 2 4 Lamp for REMOTE In the page of Set if Remote is enabled this yellow light is illuminant 10 2 5 Lamp for TEMP When the amplifier temperature...

Page 20: ...r this mode of equipment 11 Failure Check 11 1 Turn on the power supply but the equipment doesn t work it may The fuse is broken change the fuse The plug is not inserted tightly or contacted fault ins...

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