Nitek VH851 Installation And Operation Manual Download Page 7

Page 5

Troubleshooting

Video inverted or rolling and unstable.
• Reverse the wires of the twisted pair at either
   the transmitter or receiver.

No video out at the receiver.
• Check to make sure that there is video in at
   the transmit end.
• Make sure that the pair of wires you are using
   is not open or shorted between the transmit
   and receiver points.
• Check power to the receiver.

Ghost image at the receiver.
• Bridge tap or "T" tap on the twisted pair video
   line. Remove tap.

For additional help with problems please call NITEK

®

 Tech-

nical Assistance at (800) 528-4343. Hours are from  8am to
5pm Central Standard Time Monday through Friday. We are
always ready to help.

Problem
Fix/Cause

Problem
Fix/Cause

Limited Warranty

NITEK

®

 warranties that this unit  will be free from defects in

materials and/or workmanship. Defective units will be re-
paired or replaced at our option within 2 years from the date of
shipment. This warranty does not apply to units abused
through misuse or subjected to improper and/or excessive
voltage, beyond our control.

For complete warranty details contact NITEK

®

Problem
Fix/Cause

Summary of Contents for VH851

Page 1: ...5410 Newport Dr 24 Rolling Meadows IL 60008 PHONE 847 259 8900 FAX 847 259 1300 Internet www nitek net E mail INFO nitek net Installation and Operation Manual VH851 VH1651 Rev 091903 NITEK...

Page 2: ...CONTENTS Features 1 System Specifications 2 Installation 3 4 Troubleshooting 5 Limited Warranty 5 VH1651 Diagram 6 Page Reduce risk of fire or electrical shock do not expose this product to rain or m...

Page 3: ...of the VH851 and VH1651 Live video over twisted pair lines for up to 1 500 feet Easy to install with just a screwdriver High resolution color or monochrome video Virtually impervious to hum and noise...

Page 4: ...ower transformer VH1651 System includes the following 1 VH1651 Hub 1 Wall power transformer Size 1 75 H x 17 W x 6 0 D Power Requirements 24VAC 50 60Hz Class 2 550mA Input Low voltage current loop fro...

Page 5: ...smitter to the screw terminals noting the polarity of the connection If the wires are reversed the video will be unviewable on the monitor Reversing the wires will not damage the unit Step 3 The VH851...

Page 6: ...tches 7 and 8 For more gain adjust 5 and 6 Switches 1 and 2 or 3 and 4 must be operated in pairs to adjust for frequency compensation Step 5 There is also an Earth Ground terminal on the rear of the V...

Page 7: ...o line Remove tap For additional help with problems please call NITEK Tech nical Assistance at 800 528 4343 Hours are from 8am to 5pm Central Standard Time Monday through Friday We are always ready to...

Page 8: ...VH1651 Back VH1651 Top Note VH851 is identical with the exception of 8 BNC ports instead of 16 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 24VAC 450 mA 50 60 Hz Class 2 only 2 4 6 8 10 12 14 16 5 0 6 0 17...

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