{"product_id":"lampmatrixboard","title":"Williams System 9-11 Lamp Matrix Test board","description":"\u003cdiv class=\"Y3BBE\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-hveid=\"CAEIAxAA\" data-complete=\"true\" data-processed=\"true\"\u003e\n\u003cdiv data-subtree=\"aimfl\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\"\u003eThis circuit board is a\u003c\/div\u003e\n\u003cstrong class=\"Yjhzub\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\"\u003eWilliams System 9-11 Lamp Matrix Indicator\u003c\/strong\u003e, a essential diagnostic tool for pinball repair. It is designed to simulate a playfield’s lamp matrix using an 8x8 LED display, allowing you to quickly isolate whether a lighting issue is on the CPU\/driver board or within the machine's wiring harness.\u003c\/div\u003e\n\u003cdiv class=\"Fsg96\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"AdPoic\" aria-level=\"3\" role=\"heading\" data-animation-nesting=\"\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\" data-sae=\"\"\u003e\u003cstrong class=\"Yjhzub\" data-sfc-cb=\"\" data-complete=\"true\"\u003eProduct Description\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"Y3BBE\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-hveid=\"CAEIBBAA\" data-complete=\"true\" data-processed=\"true\"\u003eThe \u003cstrong class=\"Yjhzub\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\"\u003eWilliams System 9-11 Lamp Matrix Indicator\u003c\/strong\u003e provides a clear, real-time visual representation of your pinball machine's lamp matrix operation. By mimicking the playfield’s 64-lamp grid, it eliminates the guesswork involved in troubleshooting \"ghosting\" lights, dead rows, or locked-on columns.\u003c\/div\u003e\n\u003cdiv class=\"Y3BBE\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-hveid=\"CAEIBRAA\" data-complete=\"true\" data-processed=\"true\"\u003eWhether you are testing on a professional repair bench or directly inside a machine, this board helps you confirm the health of your MPU and driver components before you start tracing miles of under-playfield wiring.\u003c\/div\u003e\n\u003cdiv class=\"Fsg96\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"AdPoic\" aria-level=\"3\" role=\"heading\" data-animation-nesting=\"\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\" data-sae=\"\"\u003e\u003cstrong class=\"Yjhzub\" data-sfc-cb=\"\" data-complete=\"true\"\u003eKey Features\u003c\/strong\u003e\u003c\/div\u003e\n\u003cul class=\"KsbFXc U6u95\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\"\u003e\n\u003cli class=\"dF3vjf\" data-sfc-cb=\"\" data-hveid=\"CAEIBhAA\" data-complete=\"true\" data-sae=\"\"\u003e\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-complete=\"true\"\u003e\u003cstrong class=\"Yjhzub\" data-sfc-cb=\"\" data-complete=\"true\"\u003eBroad Compatibility:\u003c\/strong\u003e Specifically designed for \u003cstrong class=\"Yjhzub\" data-sfc-cb=\"\" data-complete=\"true\"\u003eWilliams System 9, System 11, 11A, 11B, and 11C\u003c\/strong\u003e machines. It is also compatible with \u003cstrong class=\"Yjhzub\" data-sfc-cb=\"\" data-complete=\"true\"\u003eData East\u003c\/strong\u003e pinball systems.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"dF3vjf\" data-sfc-cb=\"\" data-hveid=\"CAEIBhAB\" data-complete=\"true\" data-sae=\"\"\u003e\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-complete=\"true\"\u003e\u003cstrong class=\"Yjhzub\" data-sfc-cb=\"\" data-complete=\"true\"\u003eDual-Environment Testing:\u003c\/strong\u003e Operates flawlessly on a test bench (requires 5-18V DC power) or while mounted in a live machine (draws power directly from the driver board).\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"dF3vjf\" data-sfc-cb=\"\" data-hveid=\"CAEIBhAC\" data-complete=\"true\" data-sae=\"\"\u003e\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-complete=\"true\"\u003e\u003cstrong class=\"Yjhzub\" data-sfc-cb=\"\" data-complete=\"true\"\u003eIntuitive Diagnosis:\u003c\/strong\u003e The LED matrix is oriented to match standard game manual diagrams (e.g., Column 1 is the leftmost column, Row 1 is the top row), making it easy to identify specific faulty transistors or chips.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"dF3vjf\" data-sfc-cb=\"\" data-hveid=\"CAEIBhAD\" data-complete=\"true\" data-sae=\"\"\u003e\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-complete=\"true\"\u003e\u003cstrong class=\"Yjhzub\" data-sfc-cb=\"\" data-complete=\"true\"\u003eSimple Connectivity:\u003c\/strong\u003e Features standard header pins for \u003cstrong class=\"Yjhzub\" data-sfc-cb=\"\" data-complete=\"true\"\u003eJ6 (Rows\/Returns)\u003c\/strong\u003e and \u003cstrong class=\"Yjhzub\" data-sfc-cb=\"\" data-complete=\"true\"\u003eJ7 (Columns\/Strobes)\u003c\/strong\u003e. Simply attach your machine's 16-pin and 8-pin connectors to begin testing in any mode—attract, gameplay, or diagnostics.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"Fsg96\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"AdPoic\" aria-level=\"3\" role=\"heading\" data-animation-nesting=\"\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\" data-sae=\"\"\u003e\u003cstrong class=\"Yjhzub\" data-sfc-cb=\"\" data-complete=\"true\"\u003eWhy You Need It\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"Y3BBE\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-hveid=\"CAEIBxAA\" data-complete=\"true\" data-processed=\"true\" aria-owns=\"action-menu-parent-container\"\u003eIdentifying a fault in a lamp matrix can be tedious. If an entire row or column is out on this indicator, you know the problem is a component on the circuit board (likely a transistor or PIA chip). If the indicator shows a perfect matrix but your playfield does not, you’ve successfully isolated the issue to a harness, socket, or diode problem.\u003c\/div\u003e\n\u003cdiv class=\"Y3BBE\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-hveid=\"CAEIBxAA\" data-complete=\"true\" data-processed=\"true\" aria-owns=\"action-menu-parent-container\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"Y3BBE\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-hveid=\"CAEIBxAA\" data-complete=\"true\" data-processed=\"true\" aria-owns=\"action-menu-parent-container\"\u003e\n\u003cdiv class=\"otQkpb\" aria-level=\"3\" role=\"heading\" data-animation-nesting=\"\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\" data-sae=\"\"\u003e\u003cstrong class=\"Yjhzub\" data-sfc-cb=\"\" data-complete=\"true\"\u003eQuick-Start Guide\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"Fsg96\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"AdPoic\" aria-level=\"3\" role=\"heading\" data-animation-nesting=\"\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\" data-sae=\"\"\u003e\u003cstrong class=\"Yjhzub\" data-sfc-cb=\"\" data-complete=\"true\"\u003e1. In-Machine Testing\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"Y3BBE\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-hveid=\"CAEIBxAA\" data-complete=\"true\" data-processed=\"true\"\u003eUse this method to determine if a lighting fault is on the circuit board or in the playfield wiring.\u003c\/div\u003e\n\u003cul class=\"KsbFXc U6u95\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\"\u003e\n\u003cli class=\"dF3vjf\" data-sfc-cb=\"\" data-hveid=\"CAEICBAA\" data-complete=\"true\" data-sae=\"\"\u003e\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-complete=\"true\"\u003e\u003cstrong class=\"Yjhzub\" data-sfc-cb=\"\" data-complete=\"true\"\u003eStep 1:\u003c\/strong\u003e Turn off the pinball machine.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"dF3vjf\" data-sfc-cb=\"\" data-hveid=\"CAEICBAB\" data-complete=\"true\" data-sae=\"\"\u003e\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-complete=\"true\"\u003e\u003cstrong class=\"Yjhzub\" data-sfc-cb=\"\" data-complete=\"true\"\u003eStep 2:\u003c\/strong\u003e Disconnect the lamp matrix harness from the CPU\/Driver board.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"dF3vjf\" data-sfc-cb=\"\" data-hveid=\"CAEICBAC\" data-complete=\"true\" data-sae=\"\"\u003e\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-complete=\"true\"\u003e\u003cstrong class=\"Yjhzub\" data-sfc-cb=\"\" data-complete=\"true\"\u003eStep 3:\u003c\/strong\u003e Connect the \u003cstrong class=\"Yjhzub\" data-sfc-cb=\"\" data-complete=\"true\"\u003eWilliams 9-11 Lamp Matrix Indicator\u003c\/strong\u003e directly to the board headers (\u003cstrong class=\"Yjhzub\" data-sfc-cb=\"\" data-complete=\"true\"\u003eJ6\u003c\/strong\u003e for Rows\/Returns and \u003cstrong class=\"Yjhzub\" data-sfc-cb=\"\" data-complete=\"true\"\u003eJ7\u003c\/strong\u003e for Columns\/Strobes).\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"dF3vjf\" data-sfc-cb=\"\" data-hveid=\"CAEICBAD\" data-complete=\"true\" data-sae=\"\"\u003e\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-complete=\"true\"\u003e\u003cstrong class=\"Yjhzub\" data-sfc-cb=\"\" data-complete=\"true\"\u003eStep 4:\u003c\/strong\u003e Turn the machine on.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"dF3vjf\" data-sfc-cb=\"\" data-hveid=\"CAEICBAE\" data-complete=\"true\" data-sae=\"\"\u003e\n\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-complete=\"true\"\u003e\u003cstrong class=\"Yjhzub\" data-sfc-cb=\"\" data-complete=\"true\"\u003eStep 5:\u003c\/strong\u003e Enter the machine’s \u003cstrong class=\"Yjhzub\" data-sfc-cb=\"\" data-complete=\"true\"\u003eDiagnostic Menu\u003c\/strong\u003e and run the \"All Lamps\" or \"Single Lamp\" test.\u003c\/span\u003e\n\u003cul class=\"KsbFXc U6u95\" data-sfc-cb=\"\" data-complete=\"true\"\u003e\n\u003cli class=\"dF3vjf\" data-sfc-cb=\"\" data-hveid=\"CAEICBAF\" data-complete=\"true\" data-sae=\"\"\u003e\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-complete=\"true\"\u003e\u003cem class=\"eujQNb\" data-sfc-cb=\"\" data-complete=\"true\"\u003eIf the indicator displays the correct pattern:\u003c\/em\u003e The fault is in your playfield wiring, sockets, or diodes.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"dF3vjf\" data-sfc-cb=\"\" data-hveid=\"CAEICBAG\" data-complete=\"true\" data-sae=\"\"\u003e\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-complete=\"true\"\u003e\u003cem class=\"eujQNb\" data-sfc-cb=\"\" data-complete=\"true\"\u003eIf the indicator shows missing rows\/columns:\u003c\/em\u003e The fault is on the CPU\/Driver board (check transistors Q42–Q49 for rows or Q62–Q69 for columns).\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"Fsg96\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"AdPoic\" aria-level=\"3\" role=\"heading\" data-animation-nesting=\"\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\" data-sae=\"\"\u003e\u003cstrong class=\"Yjhzub\" data-sfc-cb=\"\" data-complete=\"true\"\u003e2. Bench Testing\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"Y3BBE\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-hveid=\"CAEICRAA\" data-complete=\"true\" data-processed=\"true\"\u003eIdeal for board repair when the machine is not present.\u003c\/div\u003e\n\u003cul class=\"KsbFXc U6u95\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\"\u003e\n\u003cli class=\"dF3vjf\" data-sfc-cb=\"\" data-hveid=\"CAEIChAA\" data-complete=\"true\" data-sae=\"\"\u003e\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-complete=\"true\"\u003e\u003cstrong class=\"Yjhzub\" data-sfc-cb=\"\" data-complete=\"true\"\u003eStep 1:\u003c\/strong\u003e Connect your bench power supply (5V–18V DC) to the lamp matrix power input on your driver board (typically \u003cstrong class=\"Yjhzub\" data-sfc-cb=\"\" data-complete=\"true\"\u003e1J4\u003c\/strong\u003e for System 9-11).\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"dF3vjf\" data-sfc-cb=\"\" data-hveid=\"CAEIChAB\" data-complete=\"true\" data-sae=\"\"\u003e\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-complete=\"true\"\u003e\u003cstrong class=\"Yjhzub\" data-sfc-cb=\"\" data-complete=\"true\"\u003eStep 2:\u003c\/strong\u003e Connect the indicator board to the \u003cstrong class=\"Yjhzub\" data-sfc-cb=\"\" data-complete=\"true\"\u003eJ6\u003c\/strong\u003e and \u003cstrong class=\"Yjhzub\" data-sfc-cb=\"\" data-complete=\"true\"\u003eJ7\u003c\/strong\u003e headers.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"dF3vjf\" data-sfc-cb=\"\" data-hveid=\"CAEIChAC\" data-complete=\"true\" data-sae=\"\"\u003e\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-complete=\"true\"\u003e\u003cstrong class=\"Yjhzub\" data-sfc-cb=\"\" data-complete=\"true\"\u003eStep 3:\u003c\/strong\u003e Power on the board. The LED matrix will reflect the signals sent by the processor, allowing you to verify repairs in a controlled environment.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"Fsg96\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"AdPoic\" aria-level=\"3\" role=\"heading\" data-animation-nesting=\"\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\" data-sae=\"\"\u003e\u003cstrong class=\"Yjhzub\" data-sfc-cb=\"\" data-complete=\"true\"\u003e3. Reading the Matrix\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"Y3BBE\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-hveid=\"CAEICxAA\" data-complete=\"true\" data-processed=\"true\"\u003eThe indicator is designed to mirror the \"Lamp Matrix Table\" found in your game's original manual.\u003c\/div\u003e\n\u003cul class=\"KsbFXc U6u95\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\"\u003e\n\u003cli class=\"dF3vjf\" data-sfc-cb=\"\" data-hveid=\"CAEIDBAA\" data-complete=\"true\" data-sae=\"\"\u003e\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-complete=\"true\"\u003e\u003cstrong class=\"Yjhzub\" data-sfc-cb=\"\" data-complete=\"true\"\u003eColumns (Strobes):\u003c\/strong\u003e Run from left to right (1 through 8).\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"dF3vjf\" data-sfc-cb=\"\" data-hveid=\"CAEIDBAB\" data-complete=\"true\" data-sae=\"\"\u003e\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-complete=\"true\"\u003e\u003cstrong class=\"Yjhzub\" data-sfc-cb=\"\" data-complete=\"true\"\u003eRows (Returns):\u003c\/strong\u003e Run from top to bottom (1 through 8).\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"Fsg96\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\"\u003ehttps:\/\/youtu.be\/tu1AFgWSnW8?si=MvAzlkrtfuw3y97z\u003cbr\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"Fsg96\" data-sfc-cp=\"\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\" style=\"text-align: right;\"\u003eBE9\u003c\/div\u003e\n\u003chr class=\"j3tEEe\" data-sfc-pl=\"|[]\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\" data-sae=\"\"\u003e\n\u003c\/div\u003e","brand":"That Old Pinball","offers":[{"title":"Large 32x32mm","offer_id":51852543328552,"sku":null,"price":24.0,"currency_code":"USD","in_stock":true},{"title":"Small 20x20mm","offer_id":51852543295784,"sku":null,"price":22.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0861\/0037\/7896\/files\/IMG-8931.jpg?v=1774654973","url":"https:\/\/thatoldpinball.com\/products\/lampmatrixboard","provider":"That Old Pinball","version":"1.0","type":"link"}