Technics/Panasonic RDG5772ZC Gear

Many Technics/Panasonic tape decks use this gear for tape transport. They were created from semi-flexible material that tends to crack during the time (well, the parts were produced back in 80’s or 90’s).

You can recognize problem with this gear when you hear ticking noise during playback. At the end you would not be able to play the tape at all, or only in one direction if you have reverse deck.

You can download service manual and disassembly the unit by following steps there. It should not be too complex. The gear is located typically here, the description should be RDG5772ZC.

Broken gear can look like this:

Then you can replace broken gear with my 3D printed one. It is also made from semi-flexible material that is similar to the original one. It was tested in many machines and it operate smoothly without noise. 

You can see function demonstration bellow:

..and example video how to replace the gear – thanks to 阪急5132

Part is compatible with following devices:
MS20, MS600, RS-CH550, RS-CH700, RS-CH900, RS-T9023, RS-TR210, RS-TR232, RS-TR262, RS-TR265, RS-TR311, RS-TR333, RS-TR515, RS-TR535, RX-CT990, RX-DS05, RX-DS35, RX-DS790, RX-DT07, RX-DT5, RX-DT501, RX-DT680, RX-DT690, RX-E250, RX-E300, SA-CH11, SA-CH150, SA-CH455, SA-CH52, SA-CH55, SA-CH72, SA-DH66, SA-VC10, SU-CH80, SU-CH82, SU-CH90, SU-CH92, RX-DT505, GX-89CD, RX-DS620, RS-TR355, RX-DT707, RX-DS30P, SA-CH33, RS-B55, RS-955.

It might work also with other devices – just check your service manual.

Available for purchase – go to shop.

One thought on “Technics/Panasonic RDG5772ZC Gear

    1. Ciertamente es real..conseguí reparar mi deck con esta pieza..revivir el sonido de antiguos cassetes y por supuesto mi equipo de audio..muy agradecido por el trabajo de precisión que conlleva hacer semejante pieza…seriedad y envio rapido…ánimo a quien posea un deck technics/panasonic que incorpore este engranaje a repararlo…es sencillo de hacer y la satisfacción es enorme

  1. Today I have replaced both gears p/n RDG5772ZC to my Technics RS-TR333. The cassette deck works perfectly on play, reverse play, fast forward and rewind. The gear is mounted on a small black plastic spindle. As per the service manual I also added some special white grease for plastic into the gear’s hole which is in contact with that spindle. I am very happy! Thank you Martin!

    1. Hi Cristian,
      I am happy to hear that you are satisfied. Thank you for your comment!

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