# DesTest MAX Switch-Select Cartridge

DesTest MAX Switch-Select Cartridge

- **Seller:** [Bob's Bits](https://lectronz.com/stores/bobsbits), Bridgend, UK
- **Price:** €32.00 (EUR, before shipping and taxes)
- **Availability:** In stock
- **Categories:** Retrocomputing
- **HS code:** 85340090
- **Product page:** https://lectronz.com/products/maxswitch

## Options

**Select option**

- Self-assembly kit with no cartridge case (50 left)
- Self-assembly kit with cartridge case [Add €5.00] (50 left)
- Fully assembled PCB, no case [Add €7.50] (50 left)
- Fully assembled and tested cartridge [Add €10.00] (50 left)

## Links

- [Documentation](https://factorofmatt.com/destest-max-switch)

## Images

![DesTest MAX Switch-Select Cartridge](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzE0MTIsInB1ciI6ImJsb2JfaWQifX0=--d34b0ec715243a8ebc7eafe5b193ccb57832bada/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/Assembled.jpg)
![DesTest MAX Switch-Select Cartridge](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzE0MTYsInB1ciI6ImJsb2JfaWQifX0=--1ce66a732d76702cfc2a3162ea0327e4d41fc280/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/Kit%20-%20With%20Case.jpg)
![DesTest MAX Switch-Select Cartridge](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzE0MjQsInB1ciI6ImJsb2JfaWQifX0=--74e916ba98681aaf7fd5f12249db8c75977a28a5/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/Assembled%20-%20No%20Case.jpg)
![DesTest MAX Switch-Select Cartridge](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzE0MjAsInB1ciI6ImJsb2JfaWQifX0=--df6c34cee81025bffbdad930d7e05a3e706d373b/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/Kit%20-%20No%20Case.jpg)

## Description

### **Overview**
The DesTest MAX Switch-Select cartridge has the capability to select between a total of 6 diagnostics programs.
The 28F512 PROM can be programmed with up to 2 x 16K  'Switch images, 2 x 8K /GAME (MAX) images and 2 x 8K /EXROM images. There are two slide-switches to allow selection between the six available images when required.
This cartridge is described as a one-stop-shop for all your diagnostic program needs.

The DesTest MAX-Switch-Select hardware provides the following:

* Power LED. Most of the time when diagnosing or repairing a C64, the keyboard is removed along with the Power LED. The DesTest MAX Switch-Select cartridge includes a simple power LED to help avoid mistakes like removing or inserting ICs with the power on.
* Reset Switch and LED. A faulty reset-circuit in a C64 can prevent it from starting-up properly. A reset-switch can temporarily bypass a faulty reset-circuit, while the LED gives a visual indication if something is wrong.
* Mode Slide Switch.  The switch on the left-hand side of the cartridge selects what kind of diagnostic-image will run at power-up.  Use it to pick between a 16K 'Switch image, an 8K /GAME (MAX) image or an 8K /EXROM image.
* Bank Slide Switch.  Each of the three kinds of images (switch, game and exrom) can have two images installed.  The right slide switch selects between these two images.

### **Available Options**
Our DesTest MAX Switch-Select products are fully licenced by Matt Desmond, and a portion of sales goes direct to Matt so he can continue to develop further fantastic products for our beloved machines.
We provide 4 options to purchase:

**Self-assembly kit with no case - This kit contains:**
* DesTest MAX Switch-Select PCB along with pre-soldered SMD components
* PLCC Socket and 28F512 PROM (Pre-programmed)
* LEDs
* Slide Switches
* Pushbutton for 'Reset' function

**Self-assembly kit with case - This kit contains the same items as the above kit, with the added parts:**
* 3D printed cartridge shell
* 3D printed reset button and LED standoffs
* Stickers for the shell

**Assembled, no case - This is the fully soldered and tested PCB, with no case.**

**Fully assembled - This is the whole cartridge that is pre-assembled in a case and tested.**

**NOTE: Basic through-hole soldering skills are required to assemble the kits. SMD components have been pre-soldered.**

## Shipping policy

I try and ship products the same day where possible (please bear in mind time-zone differences!). It can sometimes take me a few days to despatch orders due to work commitments, post office opening hours, real-life events etc.
I do not ordinarily despatch on weekends or UK public/bank holidays.

Please contact me if your country is not available and I will get it added where possible.