Make this my favourite Jupiter Ace ZXVid - Composite Video/ULA Fix (self-fit)

Retro Computers >> Hardware
Listing type:
Fixed Price Multiple Items
Item Condition:
Seller location:
Stoke-on-Trent, Staffordshire, United Kingdom
Ending in:
19 days, 15h:17m:46s
Quantity Available
Latest buyer:
A***n (9)
Fixed price:
£32.00 Buy now!
Shipping Costs:
From only £3.00
Payment methods:
Paypal, Bank transfer
Number Sold:
12 (View history)
Buyer Value Date and hour Quantity bought
A***n (9) £32.00 06/08/2020  13:58:32 1
f***c (1) £32.00 11/02/2020  09:09:59 1
k***b (2) £30.00 31/05/2019  16:46:06 1
D***e (10) £30.00 27/12/2018  00:16:46 1
T***e (1) £30.00 08/12/2018  20:17:33 1
J***n (1) £30.00 07/12/2018  07:08:39 1
v***1 (15) £30.00 15/10/2018  07:48:39 1
J***n (2) £30.00 10/01/2018  12:49:14 1
G***e (10) £30.00 24/11/2017  09:46:58 1
S***N (1) £30.00 05/05/2017  14:59:07 1
h***h (2) £30.00 18/06/2016  18:41:59 1
m***c (2) £30.00 09/06/2016  05:27:49 1
Feedback on this Item
PositivePositive D***e (10) 15/03/2019  20:14:33
PositivePositive v***1 (15) Thanks ! 27/10/2018  02:52:03
PositivePositive J***n (2) Awesome mod, extremely quick to fit , with a de soldering station, I got next day delivery ..these guys know there stuff ..awsome 13/01/2018  15:52:40
PositivePositive S***N (1) The package arrived. Thank you! 03/06/2017  16:52:56

WARNING: Due to the impact of coronavirus, delivery times across the World are severely impacted, with some countries refusing to accept postage completely.

Item Number : 9855

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Fixed price: £32.00
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Users of Jupiter Ace Home Computers can have a hard time getting a crisp picture out of the Jupiter Ace, especially on a colour television set or a TV without manual tuning.

This is caused by the weakness of the video signal from the Jupiter Ace and can be cured by converting the output to composite video.

We have therefore developed the ZXVid.

The ZXVid is a board designed by Andrew Rea which replaces the insides of the UM1233 UHF modulator on the Jupiter Ace and provides excellent composite video output for modern televisions, and also incorporates the back-porch latch required on modern colour televisions.  Originally designed for the ZX81 we have now successfully tested this on the Jupiter Ace.

This provides a nice neat solution, and if you require, you can even make up a SCART lead to plug into the unit.

This is the self-fit version of the ZXVid - we supply the built unit (as shown in the main photo), plus the bits of wire you require. A link to the fitting instructions appears below..

You have to then remove the two wires which currently run from the motherboard into the side of the UM1233 UHF modulator, and fetch out the interior circuits which are built into the modulator.

The ZXVid unit then fits inside the modulator, and you need to connect two new wires to the motherboard, solder a couple of wires inside the UHF modulator itself and connect the composite video lead.

We can also fit the ZXVid for you.

The manual / fitting instructions appear at:

See our other auctions for the alternative options.


Created in conjunction with Mutant Caterpillar Games

-- Buy with confidence from RWAP Software - supporting Sinclairs since 1986 --


Picture gallery

  • Jupiter Ace ZXVid - Composite Video/ULA Fix (self-fit)
  • Jupiter Ace ZXVid - Composite Video/ULA Fix (self-fit)

Questions and Answers

Shipping and Payment

Item Location:
Stoke-on-Trent, Staffordshire, United Kingdom
Shipping conditions:
Buyer pays shipping expenses
Shipment fee:
  • To United Kingdom :
  • First Class Post : £3.00 For initial item, £0.48 Per additional item
  • To EU :
  • Airmail Post : £4.56 For initial item, £0.54 Per additional item
  • To Europe (Non EU) :
  • Airmail Post : £4.56 For initial item, £0.54 Per additional item
  • To Americas (Non USA) :
  • Airmail Post : £5.52 For initial item, £0.60 Per additional item
  • To Rest of World :
  • Airmail Post : £6.84 For initial item, £0.60 Per additional item
  • To USA :
  • Airmail Post : £5.52 For initial item, £0.60 Per additional item
Shipment terms:
Not specified
Payment methods:
Paypal, Bank transfer

Seller: Rich Mellor t/as RWAP Software 3 Dale View Court Fulford, Stoke-on-Trent, Staffordshire, ST11 9BA, United Kingdom
All prices and shipping include VAT at 20.00% where applicable
VAT Number: GB326034531

The seller accepts all responsibility for this listing

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