Commodore 64 Computer - Working 100% - C64 - SID 6581 For Sale
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Commodore 64 Computer - Working 100% - C64 - SID 6581:
$139.99
Up for sale is aCommodore 64 in excellent working condition.Video port is 8 pin. All testing and repair was completed by an electronic technician using original Commodore parts and the internal components were professionally inspected and cleaned. The case is in excellent condition with little to no yellowing. After repair, the Commodore was rigorously tested with the 2016 state of the artC-64 Advanced Diagnostics Cartridge from Adoreware. We are the developer ofthis diagnosticscartridge and no other hardware verifies the operation and graphics of theCommodore 64 better. Every I/O port was tested. Every key on the keyboard was tested. Our test pattern generator auto detects the VIC model and verifies accurate video alignment, color, and graphicsmodes. The sound test uses the detected VIC model to generate an accurate carrier frequency, then its tested with an oscilloscope. We have the abilityto test more integrated circuits inside the Commodore than anyother diagnostics tool. Our CPU, RAM, PLA,ROM, and CIA test procedures are customized to test the IO port, IRQs, memorymapping, and more in ways not available with legacy diagnostics tools. The diagnostics was run for 24 hours and hadno errors.
The following is a comprehensivelist of the tests conducted…
- Zero Page RAM (4164-U9,U21,U10,U22,U11,U23,U12,U24 / 41464-10,U9/U11)
- Stack Page RAM (4164-U9,U21,U10,U22,U11,U23,U12,U24 / 41464-10,U9/U11)
- Screen RAM (4164-U9,U21,U10,U22,U11,U23,U12,U24 / 41464-10,U9/U11)
- System RAM (4164-U9,U21,U10,U22,U11,U23,U12,U24 / 41464-10,U9/U11)
- Color RAM (2114-U6)
- CPU (6510-U7)
- VIC (6567-U19)
- PLA (82S1-U17)
- SID (6581-U18)
- All three audio oscillators
- Sawtooth, triangle, pulse, and noise waveforms
- ADSR & volume
- Filters
- Ring modulators
- Analog to digital converters (Control port paddles)
- Random number generator
- All three ROMs (Kernal-U4, BASIC –U3, Character-U5)
- Both CIAs including IRQs (6526-U1,U2)
- Bi-Lateral Switch (4066-U28)
- Quad Multiplexer (74258-U14)
- All 4 memory maps
- Video banks
- Sprite memory locations
- Memory 1 & Timer 2
- Cartridge Expansion Port
- Cassette Port
- Keyboard Port
- Joysticks Ports (1&2)
- All directions and fire.
- Analog paddles (SID analog to digital converter)
- User Port
- Serial Port
- 5544 TV Test Pattern
- BALI TV Test Pattern
- SMPTE BARS Test Pattern
- All graphics modes (Images)
- Several games including fast loaders
- Commodore C64 Dead Test (781220)
- C64 Diagnostics (586220)
Commodore 64sare 30+ years old and the cosmetic condition may bear signs of age such assome yellowing, scuffs, scratches, or other minor imperfections. Anything beyond \"minor\" imperfections will be specifically notedin the description.
This item will be packed in a NEW, over-sized, double corrugated, 275 lb tear weight box to ensure a damage free delivery. We have many of these in stock, however we are not able to combine shipping due to the size. Each will be shipped separately.
NOTE: This listing does not include a power supply! Also, the monitor is not included and was only used to display the video output!NOTE: Please verify your power supply is producing the correct voltages before connecting it to the unit.
For those of you who have done business with us before, you can expect the same low price, great condition items, andhonesty. Those who have not done business with us,please take time to read our response and buy with confidence. Many of our items are received in BETTER condition than described. Don\'t take our word for it, read our response and see what our customers say!
FAST Shipping\\SAFE Arrival\\GREAT Price\\GOOD Folks w\\ EXCELLENT Business Ethics!!
Items came packed very well. No problems. Just as described. Multiple sales.
SUPER FAST SHIPPING AND AS ALWAYS A GREAT PRODUCT. THANK YOU VERY MUCH.
Many times repeat customer, excellent item, packaging, & quick shipping, thanks
Excellent transaction. Well packed, accurate description. Quickly shipped.
Beautifully restored product, fast shipping, great to work with you! A++
Good deal, easy transaction, shocked at how fast it arrived, happy as a clam!!
5 Stars*Best Unimat deal around*I highly recommend this seller+++++++++++++++A
Great like new item, better than described, very satisfied. Thanks
Perfect condition, superb shipping arrangements, couldn\'t be happier!!
Great tool -better than described - fast shipping - thank you very much.
Fast delivery,honest seller,all items as advertised,great prices.I am happy .
We have a NO QUESTIONS ASKED return policy. If you\'re not satisfied with your purchase for ANY reason, just request a return and we will issue a refund. Buyer is responsible for return shipping cost unless the item is not as described or is damaged in shipping, at which time we will provide a return shipping label.
Please test the computer out thoroughly during the returnperiod before opening the computer or before making any modifications. Our C64\'s have serialized voidlabels and we are unable to process a return if the stickers are tamperedwith or if the serial numbers don\'t match.
Buy with confidencefrom a seller with 12 years experience and 100% response!
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