Technics SX-PR1000, Service Manual

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- Press the EXECUTE button to begin the test.
- The test result (OK or NG) is displayed within few seconds. If the
test result is NG, not only the respective IC, but a break or short
circuit in the ADDRESS/DATA BUS as well as in any of the strobe
signal lines may be the cause ofthe failure.
9.3. Other device test
Figure-21
- Press the EXECUTE button to begin the test.
- The test result (OK or NG) is displayed within few seconds. If the
test result is NG, not only the respective IC, but a break or short
circuit in the ADDRESS/DATA BUS as well as in any of the strobe
signal lines may be the cause ofthe failure.
- If the DSP button is on, the “sine wave” sound will be heard when
the DSP device works fine.
- If the DSP-RAM button is on, the repeated sound will be heard by
any key down when the DSP-RAM device works fine.
- To stop these effect, push the OFF button.
9.4. Floppy Disk SAVE/LOAD test
Figure-22
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