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How To Repair CCTV Camera

By on October 31, 2017
how to repair cctv camera circuit board










cctv repair

Received one PTZ CCTV Camera for repair in my workshop (Here PTZ Stands for PAN-TILT-ZOOM this camera has three option of working mode). Fault symptom reported in this camera is lower lens unit is not rotating horizontally when controlled either with Joystick or Keyboard.

On visual inspection from outside it looks ok. I have rotated the lower unit with my hand it rotates smoothly hence I have opened the camera for further diagnosis.

I found two Stepper motors one for Horizontal (PAN) Movement and one for vertical (Tilt) Movement.

how to fix cctv camera

how to repair cctv camera


While visual inspection I have found worn-out Timing belt Under the CAP of Camera which drive horizontal direction.

camera cctv repair

After removing the belt I found some wires are damaged inside Camera cap side area.

I have powered the camera by controlling with my keyboard I found both the Motors are works well. hence decided to order the Belt for fulfill my curiosity. Till the part arrived I have to find the solution for worn out Cables. First I have decided to replace the whole cables but found little time consuming, then I decide to apply some synthetic glue on each damaged wire.

cctv camera how to repair

cctv repair how to


It took two weeks to arrange the timing belt replacement.

cctv camera belt

After receiving the cable I have attached this cable on stepper motor and re assembled the unit for further testing.

After finishing the assembly I have powered the unit and I found Unit is back to the life.


This article was prepared for you by Yogesh Panchal who works as a Computer Hardware Engineer in Mumbai India.

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Note: You can check his previous repair articles in the link below:




  1. Robert Calk

    October 31, 2017 at 12:14 pm

    Good job, Yogesh.

  2. suranga Electronics

    October 31, 2017 at 3:39 pm

    Good Repair
    Yogesh Panchal.

  3. Parasuraman

    October 31, 2017 at 4:19 pm

    Very good informative article!

  4. M.Jais

    October 31, 2017 at 11:41 pm

    Awesome repaired Yogesh...Good Article..


    November 1, 2017 at 3:21 am


  6. okunlola

    November 1, 2017 at 5:01 am

    thanks nice repair

  7. aasi

    November 7, 2017 at 10:37 pm

    Nice Work
    sir can you tell in detail how to repair it's power Card Under Top Cover

    thanks and regards

  8. Praful

    September 11, 2019 at 1:24 am

    Hi you also repair a ptz IP camera rj45 function
    My camera works fine but I am not getting signal through the rj45 port. Only BNC cable input is coming..please help

  9. Gordon Smith

    February 1, 2020 at 11:42 pm

    Where can I buy spare belts.


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