Pacman and Ms Pacman Repair

The following information describes the testing and diagnosis your PCB will undergo when you send it in for repair. All Ms Pacman and Pacman-type game boards submitted for repair undergo these tests.
When the testing device / software application loads the test table for Pacman or Ms Pacman, the hardware interface device switches to the Z-80 type microprocessor, and the various sections of circuitry which make up the Pacman type PCB can be examined and verified.

Every program chip is verified and compared against a master data reference, and is replaced or reprogrammed, as required. All connections in the sockets for these chips are also analyzed, as the Ms Pacman test procedure is performed while the program chips physically exist on the circuit board under test.

All variations of conversions can be tested and repaired. The original 4 chip, as well as the 6-chip, 8-chip, single-chip, and multiple game types are supported with the testing system.
Any combination of the Pacman or Ms Pacman program chip versions are accommodated for, as software automatically adjusts for these differences during the processing of the test request. Verify program on Ms Pacman. If while testing Z-80 socket 6B the program chip (6F) is found to be the regular speed version, an optional rapid speed upgrade is available.


More information on the areas of the Pacman circuitry which are verified and tested:
By selecting tests from the test table, the system is fully capable of diagnosing and verifying the following areas of the Pacman game board. The underlined links provide further information.
2114 Ram chips	Real-time DIP switch	Moving character tests
Player 2 invert screen.	Sound circuitry	Watchdog reset
Interrupt verify	Player Input	Text screen test patterns
Accounting output	Program chips	NVC 284
NVC 285	Color Screen tests	All addressing lines
All data lines	Individual chip tests	Address buffers
Address decoding
Each link above pertains to a specific test group. This group consists of selected test numbers from the test table, sorted by objective. These tests run be run individually, as a group, or repeated until indications are satisfied that no errors exist in each section of the Pacman circuitry.

Continuous testing is performed.

Many failures due not occur until this process is performed. During this testing phase, all activity is recorded, and then analyzed. Groups of tests are run many times, searching for errors.
Any faults detected are highlighted while viewing the "Error Analysis" screen, and the possible causes are listed by probability. One example of such a report is viewable by selecting the following link: Error Analysis utilizing the GLS1 Electronics Computer Aided Testing System .

For checking / verifying individual chip operation, or for troubleshooting to the component level, detailed information is available at:
Troubleshooting tool used for Ms Pacman PCB
Use of the above software allows GLS1 Electronics to "run" the circuitry through specific address ranges, and control conditions which pertain to the targeted / suspected IC.

Boards are burned in for a minimum of 48 hours and are shipped back to customer within 2 business days of passing inspection, testing, and burn-in. Ms Pacman / Pacman game boards submitted for repair must be complete, (all custom IC's and sub boards) and in repairable condition, (not physically damaged). If your PCB is missing parts, it can still be repaired, send in PCB for estimate, or contact GLS1 Electronics beforehand.

Payments for this service can be made by enclosing check in box with board. Please include $12.00 for return shipping. Paypal is also accepted, Paypal address is next to the respective images shown below. Return shipping method used is USPS priority mail, which is usually a 2-day delivery time. All Pacman or Ms Pacman repairs are warranted for 180 days. This information on this page was last updated on February 18th, 2008.		*Shipping Address*

Item Name: Pacman and Ms Pacman combined on one board + Repair Service
Item Number: RSPC-1
Price: $129.00 more information

Item Name: 4 Pacman/Ms Pacman variations combined on one board + Repair Service
Item Number: RSPC-4
Price: $159.00 more information

GLS1 Electronics will also consider non-working Pacman / Ms Pacman PCB trade-ins as payment for repair services. Contact me at gls1@gls1electronics.com for more information.

Pacman board modifications

	Ms Pacman Test Procedure
	Ms Pacman Test Examples
	Ms Pacman Test Table
	Ms Pacman PCB Exchange
	Pacman to Ms Pacman Convert
	Ms Pacman PCB Mods
	Index of Links
	Other PCB's tested Have a Question? Live chat here, enter any user name, (Leave password field blank, no need to register)

Pacman or Ms Pacman PCB Repair
for your Ms Pacman video game
Computer Aided Testing System

	Item Name: Pacman or Ms Pacman Repair Service Item Number: RSP-1 Price: $79.00