Jump to content

reedm

Novice
 View Profile  See their activity

  • Posts

    7

  • Joined

  • Last visited

About reedm

  • Birthday 09/01/1939

Personal Information

  • Gender
    Male
  • Location
    Winthrop, Maine
  • Occupation
    retired electrical engineer

Recent Profile Visitors

The recent visitors block is disabled and is not being shown to other users.

reedm's Achievements

Novice

Novice (2/21)

20

Reputation

Single Status Update

See all updates by reedm

  1. reedm

    Hello all,

    Merry Christmas from warm (54 deg F), rainy Winthrop. Snow is about washed away.  Regarding my music system -  since I am 81 and wear hearing aids, the best in the world is no longer needed. I certainly couldn't tell speakers apart as I could 30 years ago. I do have good hearing aids, though. Starkey wireless (but not the newer Bluetooth ones) XINO 110. The frequency response has about 6 channels. Can be set for 4 different response curves. The curve I use at symphony is essentially flat from 20 to about 15k Hz. I can hear timpani and piccolos.

    I want to get the Carver TX-11 working so I can get better FM response than the Rotel receiver.

    The problem is that the manual that came with my TX-11 does not remotely resemble the TX-11 owner manual I downloaded from this site. Also the service manual does not reflect my unit. The service manual shows that the tuner has 2 crystals, X501 and X502, and 2 trim capacitors, TC502 and TC507.  My tuner has only 1 crystal and a single trim capacitor of a completely different shape than the ones shown in the various repair pages here and on YouTube.

    Am I at a level that I can upload photos of the PC boards, and a scanned copy of my owner manual?

    1. Show previous comments  2 more
    2. Nahash5150

      Nahash5150

      Interesting. But you know, it could be a transitional unit. It could be an 11a, but not fully transitioned with the labeling.

    3. reedm

      reedm

      I have got my TX-11working again. What I did was adjust the trim cap by the crystal TC-501 in above photos, in one direction a bit, and then in the other direction a bit and then returned to original position. Tuner has worked for several days now without the typical display problem.

       

      How does one adjust this trimer for the correct position?

    4. Nahash5150

      Nahash5150

      Good job!

       

      You need an o-scope to adjust the refence frequency amplitude for the tuning controller.

       

      By probing Pin 2 of the TC9147BP IC to a ground refence, adjust TC-501 for maximum amplitude.

       

      Pins 2 & 3 are the X-tal oscillator reference circuit.

×
×
  • Create New...