Twilight Zone Clock Board (pre-installed warm-white LEDs)

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Twilight Zone Clock Board (pre-installed warm-white LEDs)

Item description

A NEWLY designed replacement clock board for Twilight Zone.

This single board solves ALL of the design problems of the original boards.

Some replacement- and aftermarket boards also use LEDs instead of the original bulbs, but none of the other factory design flaws, which always cause instability, unreliability and failure of the clock, are corrected, so that it is only a matter of time before these boards, especially the OPTOS, will fail.

What are the advantages of the new board?

Completely NEW design of the board according to the recognized state of the art.

Power-ON LED.

To deactivate the Power-ON LED, just move the green jumper from W1 to W2.

No longer suffer from weak or intermittent OPTO problems.
This board will solve the weak OPTO-problem FOREVER and ALL TIMES.
On the original boards the OPTOS directly drive the switch matrix, and this is the greatest reason for the unreliability of these boards.
This design flaw by Bally/Williams has been corrected with this board using separate driver logic controlled by the OPTOS. The OPTOS no longer drive the switch matrix directly , there is extra logic implemented. You no longer will have the nasty "clock broken" error.

You can use every "normal" OPTO, as far as the aparture size is suitable.
There is no longer any need to search for the obsolete original OPTO QVE11233.086. We use TCST1103 (=CNY37=H22A1) from VISHAY; the "normal" QVE11233 OPTOS will work as well with our board.

8 indicator LEDs for the OPTOS, so you can see at once if an OPTO has a problem or if the problem is elsewhere.
You can deactivate the indicator LEDs by removing the resistor network out of RA7 and put it into the "park-position".

The original bulbs (the main reason for the heat in the clock) are replaced with cool burning Super-Flux LEDs. Warm-white Super-Flux LEDs with a wide angle of 130 degrees are used, so that we have exactly the same brightness and colour-temperature as the original bulbs. Very low power consumption, no heat problems any more.

ALL the Super-Flux LEDs are socketed.
Super-Flux LEDs are available in warm-white, cold-white, blue, green, yellow, red and color-changing rainbow Super-Flux LEDs (very nice).

You can adjust the brightness of the LEDs with a poti.

Fully rectified GI-voltage with a bridge rectifier for absolute flicker-free lightning of the Super-Flux LEDs.

Fully compatible with GI OCD from

No weak Molex connectors.
The MOLEX-connectors J2 and J3 are soldered onto an extra little PCB and then soldered to the clock-board - a very solid and stable construction, fixed by a special plastic housing.

The minutes-OPTOS (top side) are socketed.
These sockets are fixed by a special plastic housing, so that we have a very solid and stable construction. Long-term-tests have shown, that the OPTOS are not moved out of alignment by game vibrations.
The hours-OPTOS (bottom side) are soldered to the board.

Single board design.
This eliminates the board-to-board contact problems and gives a much better heat circulation in the clock board.

Our board is the lowest power-consumption board ever. It reduces the heat by more than 60%.

Discrete components used where possible for easy repair.

All ICs socketed.

Plug compatible. Plug & Play replacement board without any modifications. Just remove the old clock PCBs and put in the new single board.

Long-term tested in many many pinball machines. There has never been reported any failure.

Really available in large quantities (no vaporware).

Each board is individually tested before shipment.

Instruction manual and online support included.

Quality product made in germany.

Here is a nice review-video on youtube:

Item photos

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Pick a variation

Twilight Zone Clock Board In stock

$ 130.00

Twilight Zone Clock Board + 4 extra BLUE LEDs In stock

$ 133.00

Twilight Zone Clock Board + 4 extra RAINBOW LEDs In stock

$ 138.00


From $ 130.00

Price depends on selected item variation.

Ships for $ 6.00 (International $ 17.00) Free shipping on orders over $ 150.00 (International $ 150.00)

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