Category Archives: 3/4″ VCRs

Rental: Sony VP-7040 PAL, SECAM, NTSC 4.43 Multi-standard 3/4″ Umatic Player

Ken just advised that this Multi-standard Sony VP-7040 is Zinfurbished and ready to roll your PAL, SECAM and NTSC 4.43 tapes.

Sony VP-7040 020

It’s been:

  • Cleaned
  • New belts installed
  • Tape Path Lubricated
  • Cassette Loader Lubricated
  • Reel Tables shimmed to correct height
    • (Supports cassette reels in correct position, so no squwaking in FF or REW.)
  • Video head is like new! 
  • Updated signal system by replacing older style capacitors with New style
    • (Now very quiet signal and produces small vector dots)
    • Longer time before repairs
  • Quiet operation
  • Reliable

Old style capacitors replaced with new for better, quieter signal performance:

Sony VP-7040 014-CroppedSony VP-7040 023-Cropped

Playback of tape: NTSC 4.43 format:

Sony VP-7040 017

Closer look at the scopes:  NTSC 4.43 displayed on PAL 1781 R (to work with 4.43 chroma subcarrier.)

Sony VP-7040 027

Note the small size of the dots. That’s one benefit of the time consuming capacitor change.

(Vector scale turned down to avoid confusion with PAL dot boxes. Also, NTSC 4.43 has no setup.)

NTSC 4.43 picture displayed on multi-standard monitor:

Sony VP-7040 032-Cropped

New flutter idler and air damper for better tape performance:

Sony VP-7040 022

ZinFurbished™ Sony VO-9850 3/4″ Umatic VCRs for Archival use

We’ve put the ZING! back into this

 VO-9850 3/4″ Umatic VCR

DSC_1592       INFO-SONY VO-9850-Ser-73954

We start with a high serial number machine. That means it’s newer, generally has less use and has the prospect of longer life. Then we ZinFurbish™ it to meet or exceed factory performance specifications.

Zinfurbished- for improved electronic and mechanical performance that supports  higher quality videotape archiving
for improved electronic and mechanical performance that supports higher quality videotape archiving

The machine was completely inspected before work started

Signal system capacitors were changed to tantalum capacitors:

  •  Longer life
  • Cleaner color
  • Better picture and sound

Drum and capstan motors capacitors changed:

  • Longer life, less chance of repair needed soon

Rubber parts replaced to fix problems or keep them from happening:

  • New pinch roller assembly installed and adjusted
    • Helps prevent tape sliding and damage
  • New Fast Forward/Rewind idler drive wheel:
    • Better tape handling, quieter
  • New belts:
    • Fast fwd/rewind, cassette elevator, and threading ring
      • Assures correct operation
      • Lessens damage potential
      • Less chance of early replacement needed

Cassette elevator inspected, lubricated and adjusted

Reel Spindles lubricated and adjusted for proper height:

  • Level spindles reduces risk of damage to tape edges
  • More stable playback: reels inside cassette don’t rub on cassette
  • Quieter in wind mode!  Less chance of “nails on chalkboard” and possible damage to tape

New cushions for control panel push buttons so they don’t stick in “pushed” mode, causing operation errors

ZinFan assembly for Sony VO-9800 series Umatic VCRs

ZinFan™ assembly added for cooling, especially needed in racked operation where there’s little or no vertical space for air circulation.

  • Longer life for components
  • Longer time between major maintenance
  • Lower long-term operating cost
  • Less Downtime
  • More productivity

Power supply ripple measured:  Evidence of clean power, good capacitors filtering AC, reliable operation, stable performance:

  • +12 volts signal system:17 mv rms
  • +12 volts system:    3 mv rms
  • +7 volts logic: 20.5 mv rms


  • Sony BKU-704 SMPTE Time Code Reader

Sony VO-9850 Ser. 73954 Checked and repaired by Kenneth Zin  Sept. 01, 2013

 Available for immediate sale. Call or e-mail for price

Additional machines available.

Contact Ted Langdell for details

(530) 301-2931