Kurzweil PC2 Series User Manual

Diagnostics
Description of Tests
2-5
ZRAM
This test performs a quick read-write of the internal RAM and verifies that the data was
successfully written and retained.
A failure of this test may indicate a problem with the RAM or the Engine Board.
MIDI
The MIDI test performs a loop-back of the serial port by sending a 23-byte pattern over the
external MIDI link. This test requires a MIDI loop (a MIDI cable that connects two MIDI jacks).
The test will fail if a MIDI cable is not connected between two MIDI jacks. Be sure to run this test
with MIDI cables connected as follows:
Note: Be sure to use a known working MIDI cable!
1. Connect a MIDI cable to the MIDI In and MIDI out jacks and run the test.
2. Connect a MIDI cable to the MIDI In and MIDI Out/Thru jack and set the Out/Thru
switch on the rear panel to Out. Run the test.
A failure of this test could be caused by failure of the serial port, other MIDI circuitry, or a
problem on the Connector Board or the Engine Board.
LED
This test lights all the front panel LEDs. To complete the test and obtain the test result, press the
Cancel button. When the Cancel button is pressed the LEDs shut off and the test result is shown.
A failure of this test may indicate a problem with the Front Panel Board(s), related circuitry or
the Connector Board.
PCX-1 ROM
This test checks the software data (engine, boot, and setups) stored in FlashROM on the PCX-1
Board.
Failure of this test may indicate a problem with the Flash ROM chip (U5 on the PCX-1 Board),
associated circuitry, or the PCX-1 Board.
PCX-1 RW
This test is a combination of the RAM, MABEL and LISA tests. This test writes data to RAM and
the MABEL and LISA registers then confirms that the data written can be read back successfully.
A failure of this test indicates a problem with the PCX-1 Board.
PCX-1 RAM
The PCX-1 RAM test writes to the microprocessor RAM space and verifies that the write was
successful.
A failure of this test may indicate a problem with the RAM or related circuitry on the PCX-1
Board.

Kurzweil PC2 Series Specifications

General

Polyphony	64 voices
Sound Engine	VAST (Variable Architecture Synthesis Technology)
MIDI	In, Out, Thru
Multitimbral	16 parts
Velocity Sensitivity	Yes
Aftertouch	Yes
Year Released	1999
Display	LCD
Controllers	Pitch wheel, modulation wheel
Inputs	Sustain pedal, expression pedal
Memory	128 setups
Keyboard	76-note, semi-weighted
Outputs	Stereo outputs, headphone output