RCA CDP18S711 Instruction Manual
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0000 90 B1 B2 B3 F8 17 A3 D30008 42 70 22 78 22 52 C4 C40010 C4 94 80 91 AO 30 08 F80018 0A Al F8 7F A2 E2 69 F80020 04 B4 F8 00 A4 94 B7 840028 A7 7A E2 F8 00 A5 F8 FF0030 A6 85 57 94 BA 84 AA 8A0038 52 87 F3 3A 45 9A 52 970040 F3 3A 45 30 47 86 5A 1A0048 9A 52 94 FC 04 F3 3A 370050 07 52 85 F3 3A 6C F8 FF0058 A5 93 A6 31 60 7B 30 310060 17 97 52 94 FC 04 F3 3A0068 29 7A 30 6A 7B 30 6D 000070 00 00 00 00 00 00 00 000078 00 00 00 00 00 00 00 0032 RCA COSMAC VIP Instruction ManualCassette Recording Guidelines1. Use high quality tape (Maxell UD or 19.equivalent).2. Use shortest tapes possible. You can shortentapes to several minutes in length if you enjoy 20.splicing.3. Keep heads and pinch rollers clean.4. Keep heads aligned for tape interchangeability.5. Avoid recording too close to beginning of tape.6. Make sure cassette is properly seated in 22.recorder.7 If you have trouble with a cassette try others.You can have a had spot on tape or a warpedcassette.8. Highest setting of tone control is usually best.9. Set recorder volume control so that TAPE lightglows steadily on playback. This setting shouldbe lower than highest-volume setting. ExcessiveTAPE light flickering indicates a bad tape ormisaligned heads.10. A dirty recorder volume control can cause tapedropouts.11. Make sure cassette connection plugs make goodcontact.12. Rewind cassettes before removing them fromrecorder.14. Avoid exposing cassettes to heat or magneticfields.13. Store cassettes in dust-proof containers.15. Before recording, wind cassette to one end andfully rewind.16. Cassette recorders will give you problems once ina while (they don't like certain cassettes, etc.). Ifone gives you problems most of the time replaceit.17. Make sure that MIKE plug is connected beforerecording. You will hear a tone even if MIKE plugis out. On most recorders the TAPE light willglow while recording.18. When recording give the page key a short tap tostart.Use the last byte of a tape block as a programidentification and check code. It will appear on thedisplay screen after the tape is loaded.When loading a cassette into memory, the tapemust contain as many pages as you specify to beloaded. If you try to load 8 pages from a 7-pagetape the loading operation won't terminateproperly.21. You may have to record with the EAR plug outfor some tape recorders.Always use AC adaptor with recorder for bestresults.Memory Test ProgramThis machine language program should be loaded into0000-007F. It checks RAM locations 0000-07FF (UI8and U19) for proper data storage. Flip RUN up to starttest. Beeps sound during test. Entire 1024 byte sectionof RAM being tested is shown on screen. Program stopswith tone on if a bad RAM bit is found. Error byte is at007F. This byte should be 00 or FF for no error. Forexample, if byte is 01 or FE then bit 0 was bad. Theerror byte is also shown on the screen.Set location 0020=00 and location 0023=80 to testRAM locations 0080-03FF (U16 and U17). |
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