Sinclair ZX Spectrum Service Manual
Spectrum For Everyone https://spectrumforeveryone.com/
19
3.2 SYSTEM TEST
The system test for the Spectrum may be undertaken using the ZXTP taped program loaded
conventionally; this requires that the keyboard is connected. The test should be carried out with the
Spectrum connected to its own power supply.
The test program exercises all of the Spectrum circuitry with the exception of the SAVE function. To test
this function a small, possibly one line program should be typed in, SAVED and then VERIFIED as described
in the instruction manual.
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