Inquisitor IC Testing System – PIA & 6532 RIOT blade


PIA & RIOT blade

Out of stock


This product has been replaced by our own RAM – PIA – RIOT tester:

Pinball Solutions RAM – PIA – RIOT Tester



NeoLoch’s new Inquisitor IC testing system allows for a much wider range of IC testing than our previous designs. This split design accepts various blades. Each blade allows for testing of a specific range of ICs.

Excellent solution to test the CMOS, RAMs and other ICs used inside your pinball machines from several brands like: Zaccaria, Bally, Stern, Williams, Data East, Gottlieb.

NeoLoch’s new Inquisitor testing system expands on our previous designs. We took all the common components to our testers and wrapped them up in the “Core” module and added a card edge socket. All the specific components were placed on a “Blade”. This new system allows us to create a much wider range of testing aids.

This interchangeable system allows the user to focus in on a group of testing aids. And allows us to respond to user desired tests with greater ease. NeoLoch’s first blade is for static RAM with many blades planned for future release, these include a PIA blade, a 9060 DRAM blade, along with many other exciting blades planned for the future.

Inquisitor Testing System Features:

  • 2 x 16 character LCD display.
  • Sytem error LEDs
  • Bi-Color test status LED.
  • 2.1mm DC power jack.
  • 40 pin ZIF socket.
  • 5 Control Switches.
  • Onboard +12V and +5V voltage regulator.
  • 4 mounting holes.
  • Selectable regulated or unregulated +12V power source.


6821 PIA & 6532 RIOT Blade
PIA Blade

This updated blade now supports 6532 RIOT, “Ram IO Timer”, as well as the 6520 & 6821 PIA “Peripheral Interface Adapter” ICs. Testing of ICs is much faster thanks to a  MCU running at 32 MHz (PIC16F1719) along with a simplified progress bar during the testing process.

After the test is complete any errors detected can be displayed for further diagnosis. Tests include conducted by the PIA blade include (but are not limited to):

  • PORTA & B read / write.
  • CA1 & CA2 interrupts.
  • CA2 output modes.
  • CB1 & CB2  interrupts.
  • CB2 output modes.
  • Rrising and falling edge triggers.
  • IRQA and IRQB.
  • And more.
V2.0 Features:

  • Bi-Color reversibility
  • Statistics Tracking
  • Repeat test  (1 to 255)
  • 6532 RIOT Support.

PIA Assembly Guide
PIA User Manual V3

This blade needs the main core module to work and is sold in kit to assemble.

Additional blades can be ordered separately.


Additional information

Weight 200 g
Kit version

This product is shipped in kit and needs to be assembled and soldered.


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