EXPLANATION OF
ERROR MESSAGES
Chapter 4
4.1 ERROR MESSAGES 4 -2
4.2 SINEWAVEERRORS 4-11
4.3 SINE WAVE ERRORS/PROBABLE CAUSES 4 -1 3
4 .4 TEXT MODE ERROR MESSAGES 4 -1 6
4 .5 ERROR STATISTIC MESSAGES 4 -2 1
Kurzweil1000 Series Service Manual, Chapter 4 4-
1
4.1 -ERROR
MESSAGES
ER01 >ILLEGAL ERROR
Error 01 is reserved for future use.
ER02>PGM ROM LB CHECKSUM ERR U32
Error 02 indicates that the Program EPROM Low Byte Checksum is incorrect. This could be caused by a bad U032 EPROM, or a defect in the I.C. socket in this location. Other
possible cases for this failure could be bent pins, a bad socket or other problems with the 68000. If U040 was enabled (Pin 19 low) at the same time the chip select and output enables for U032 were low (pins 20 and 22), or if U040 was bad, the data coming from U032 would collide with the data from U040 and errors would result.
ER03>PGM ROM HB CHECKSUM ERR U21
Error 03 indicates that the Program EPROM High Byte Checksum is incorrect. This could be caused by a bad U021 EPROM, or a defect in the I.C. socket in this location. Other possible cases for this failure could be bent pins, a bad socket or other problems with the 68000.
ERO4>SU ROM LB CHECKSUM ERR U33 Error 04 indicates that the Setup EPROM Low Byte Checksum is incorrect. This could be caused by a bad U033 EPROM, or a
defect in the I.C. socket in this location. If U040 was enabled (Pin 19 low) at the same time the chip select and output enables for U033 were low (pins 20 and 22), or if U040 was bad, the data coming from U033 would collide with the data from U040 and errors would result
.
ERO5>SU ROM HBCHECKSUM ERR U22
Error 05 indicates that the Setup EPROM High Byte Checksum is incorrect. This could be caused by a bad U022 EPROM, or a defect in the I.C. socket in this location.
Kurzweil1000 Series Service Manual, Chapter 4 4- 2
ER06>RAM LB DATA ERROR U30
Error 06 indicates that the data read back from U030 is not equal to the data written to U030. This could be caused by a defective U030, as well as a bad write enable from 015, pin 111 or chip select from the collector of 0003.
ER07>RAM HB DATA ERROR U19
Error 07 indicates that the data read back from U019 is not equal to the data written to U019. This could be caused by a defective U019, as well as a bad write enable from U015, pin 8.
ER08>RAM LB ADDRESS ERR U30
Error 08 indicates that an addressing problem exists on the CPU board, or in U030. The bad bits display will show which bits the diagnostics have found to be bad. If this(these) bit(s) appear to work properly when probed with an oscilloscope, U030 is presumed to be bad. If this(these) bit(s) are not functioning properly, the address coming from U011, U023, or the 68000 could be bad.
ER09>RAM HB ADDRESS ERR U19
Error 09 indicates that an addressing problem exists on the CPU board, or in U019. The bad bits display will show which bits the diagnostics have found to be bad. If this (these) bit(s) appear to work properly when probed with an oscilloscope, U019 is presumed to be bad. If this(these) bit(s) are not functioning properly, the address coming from U011, U023, or the 68000 could be bad.
Kurzweil1000 Series Service Manual, Chapter 4 4- 3
ER10>LB BATTERY BACKUP ERROR U30
Error 10 indicates that the contents of U030 has changed during the time that power was turned off in the unit. RAM is protected by a 3 volt lithium battery on the Power Supply Board. This should supply the RAM (U030, pin 28) with at least 2.5 -5.1 volts during the time that the unit is turned off. Capacitor C080 on the CPU Board supplies the RAM chips with power for the first half hour or so, after which the lithium battery supplies
the power to RAM. The signal "Reset In" from the Power Supply Board also protects RAM by turning off the Chip Select to the RAM during power off. This signal is inverted by U044, and then goes through a resistor to 0003. This transistor inhibits the Chip Select of U030 (keeps U030, pin 20 from going low) during the time that +5 volt power is too low for the unit to function. This prevents power up or power down "glitches" from
inadvertently writing bad data to the RAM .
ER11>HB BATTERY BACKUP ERROR U19
Error 11 indicates that the contents of U019 has changed during the time that power was turned off in the unit. RAM is protected by a 3 volt lithium battery on the Power Supply Board. This should supply the RAM (U019, pin 28) with at least 2.5 -5.1 volts during the time that the unit is turned off. Capacitor C080 on the CPU Board supplies the RAM chips with power for the first half hour or so, after which the lithium battery supplies
the power to RAM. The signal "Reset In" from the Power Supply Board also protects RAM by turning off the Chip Select to the RAM during power off. This signal is inverted by U044, and then goes through a resistor to 0003. This transistor inhibits the Chip Select of U019 (keeps U019, pin 20 from going low) during the time that +5 volt power is too low for the unit to function. This prevents power up or power down "glitches" from
inadvertently writing bad data to the RAM.
ER12> TIMER REGISTER ERR U48
Error 12 indicates that the data written to the Timer's registers is not the same when read back. This could be caused by a bad U048, a bad E Clock (1 uS, 60% duty square wave on U048, pin 17), a bad V MA from UO03, pin 6), a bad chip select (from UO05, pin 13), or bad data from U040.
Kurzweil1000 Series Service Manual, Chapter 4 4- 4
.
ER13> TIMER TIMING ERROR U48
~ Error 13 indicates that the Timer cannot count properly. This could be caused by a bad U048, or a bad E Clock (1 uS, 60% duty square wave on U048, pin 17).
ER14>TIMER INT-ERRUPT ERROR U48
Error 14 indicates that the Timer cannot successfully interrupt the 68000 microprocessor. This could be caused by a missing or damaged R053, a bad U048, or a bad U045.
ER15>MIDI UART REG ERROR U67
Error 15 indicates that the data written to the Uart's registers is not the same when read back. This is usually caused by a bad U067, or a bad chip select from UO05.
ER16>MIDI UART DATA ERROR U67
Error 16 indicates that the transmit data from the Uart has travelled through U068 to the receive data of the Uart, and was not received properly. This failure could be caused by a bad U067, U003 (inverts the signal "MIDI Test," or U068 which connects TxD to RxD for this test.
ER17>MIDI UART INT ERROR U67 (*)
Error 17 indicates that the Uart cannot successfully interrupt the 68000 microprocessor. This could be caused by a missing or damaged R001, a bad U067, or a bad U045.
ER18>KEYBD UART REG ERROR U102 (*)
Error 18 indicates that the data written to the Uart's registers is not the same when read back. This is usually cased by a bad U102, or a bad chip select from U005.
Kurzweil1000 Series Service Manual, Chapter 4 4- 5
ER19>KEVBD UART DATA ERROR U102 (*)
Error 19 indicates that the transmit data from the Uart has travelled through the Keyboard Uart Test Fixture to the receive data of the Uart, and was not received properly. This failure could be caused by a bad U102, or a bad Test Fixture (dead battery) .
ER20>KEVBD UART INT ERROR U102
Error 20 indicates that the Uart cannot successfully interrupt
the 68000 microprocessor. This could be caused by a bad U102.
Figure 4.1.1 shows the pin numbers for the Arnold chips,
U016 and U029
When probing the Arnold chips with an oscilloscope probe,
BEW ARE OF PUSHING THE PROBE TIP TO FIRML V ONTO THE
ARNOLD SOCKET PINS! THIS COULD DAMAGE BOTH THE ARNOLD
SOCKET AND THE ARNOLD CHIP!
Below is: Arnold Pin numbers Top
View
Kurzweil1000 Series Service Manual, Chapter 4 4- 6
ER21>ARNOLD O DPRAM ERROR U16
Error 21 indicates that the data read back from Arnold 0 is nor equal to the data that was written to it. This could be caused by a bad Arnold 0.
ER22>ARNOLD 1 DPRAM ERROR U29
Error 22 indicates that the data read back from Arnold 0 is nor equal to the data that was written to it. This could be caused by a bad Arnold 1, bad clocks (10 MHz square wave on U016, pin 20, and U029, pin 20. 20 MHz square wave on U016, pin 19, and U029, pin 20.), bad PAL (UO08), or bad address and data buffers (U012, U024, U034, and U039).
ER23>ARNOLD 0 ROM ERROR U16
Error 23 indicates a bad Arnold 0.
ER24>ARNOLD 1 ROM ERROR U29
Error 24 indicates a bad Arnold 1.
ER25>ARNOLD O MULT ERROR U16
Error 25 indicates a bad Arnold 0.
ER26>ARNOLD 1 MUL T ERROR U29
Error 26 indicates a bad Arnold 1.
ER27>ARNOLD 0 SAMPLE ERROR U16
Error 27 is reserved for future use.
ER28>ARNOLD 1 SAMPLE ERROR U29
Error 28 is reserved for future use.
Kurzweil1000 Series Service Manual, Chapter 4 4- 7
ER29>SND ROM XO CHECKSUM ERR U58
Error 29 indicates either a bad 4 Meg Sound Rom (UOS8), a bad Arnold 1 (UO29) , a bad address buffer (UO3S-UO37) , or data multiplexer (UO41, UO43). Check the seating of UOS8 in it's socket.
ER30>SND ROM YO CHECKSUM ERR U50
Error 30 indicates either a bad 4 Meg Sound Rom (UOSO), a bad Arnold 1 (UO29), a bad address buffer (UO3S-UO37), or data multiplexer (UO41, UO43). Check the seating of UOSO in it's socket.
ER31 >SND ROM ZO CHECKSUM ERR U54
Error 31 indicates either a bad 4 Meg Sound Rom (UOS4), a bad Arnold 1 (UO29), a bad address buffer (UO3S-UO37), data multiplexer (UO42),or pullup resistor (RP3). Check the seating of UOS4 in it's socket.
ER32>SND ROM X1 CHECKSUM ERR U59
Error 32 indicates either a bad 4 Meg Sound Rom (UOS9), a bad Arnold 1 (UO29), a bad address buffer (UO3S-UO37), or data multiplexer (UO41, UO43). Check the seating of UOS9 in it's socket.
ER33>SND ROM Y1 CHECKSUM ERR U51
Error 33 indicates either a bad 4 Meg Sound Rom (UOS1 ), a bad Arnold 1 (UO29), a bad address buffer (UO3S-UO37), or data multiplexer (UO41, UO43). Check the seating of UOS1 in it's socket.
ER34>SND ROM Z1 CHECKSUM ERR U55
Error 34 indicates either a bad 4 Meg Sound Rom (UOSS), a bad Arnold 1 (UO29), a bad address buffer (UO3S-UO37), data multiplexer (UO42), or pullup resistor (RP3). Check the seating of UOSS in it's socket.
Kurzweil1000 Series Service Manual, Chapter 4 4- 8
ER35>SND ROM X2 CHECKSUM ERR U60
Error 35 indicates a bad U060, or improper seating of U060 in it's socket.
ER36>SND ROM Y2 CHECKSUM ERR U52
Error 36 indicates a bad U052, or improper seating of U052 in it's socket.
ER37>SND ROM Z2 CHECKSUM ERR U56
Error 37 indicates a bad U056, or improper seating of U056 in it's socket.
ER38>SND ROM X3 CHECKSUM ERR U61
Error 38 indicates a bad U061, or improper seating of U061 in it's socket.
ER39>SND ROM Y3 CHECKSUM ERR U53
Error 39 indicates a bad U053, or improper seating of U053 in it's socket.
ER40>SND ROM Z3 CHECKSUM ERR U57
Error 40 indicates a bad U057, or improper seating of U057 in it's socket.
ER41>ARNOLDO ONE SAMP FIFO ER U16
Error 41 indicates a bad Arnold 0.
ER42>ARNOLD1 ONE SAMP FIFO ER U29
Error 42 indicates a bad Arnold 1.
ER43>ARNOLDO SEV SAMP FIFO ER U16
Error 43 is reserved for future use.
Kurzweil1000 Series Service Manual, Chapter 4 4- 9
ER44>ARNOLD1 SEV SAMP FIFO EA U29
Error 44 is reserved for future use.
ER45>MIDI LOOP BACK ERROR U67
Error 45 indicates a failure of the MIDI In or MIDI Out circuits, or connectors. This test requires that the user place a cable from the MIDI In to the MIDI Out jacks on the rear panel of the Unit. Possible causes for this error are: Opto-Coupler (UO69) failures, Output Buffer (UO68) failures, broken resistors or ferrite beads (RO8S-RO89, FBO3FBO8), or bad connectors (JS or J7).
Kurzweil1000 Series Service Manual, Chapter 4 4-10
4.2 -SINE WAVE TEST
ERRORS
(" For All of
the Sine Wave Tests, Arnold 0 produces the Right Audio Channel, and Arnold 1
produces the Left Audio Channel. It should also be noted that the way Arnold 0
makes sound is to send serial data and sync (/SDOUT and /SYNCOUT) to Arnold 1.
Arnold 1 then adds it's own data stream to the data coming from Arnold 0 and
sends the combined result to the D/A Converters (DACs -U065, U066, U062, U063).
If Arnold 1 doesn't work, no sound or bad sound could be present in both Left
and Right Channels.
The sine waves that
are generated at the DACs do not look the same as sine waves in the text books.
There are some high frequency harmonics riding on any of the sine waves
produced in this test, as well as the quantization associated with digital
audio (stair steps).
The DAC is used in
current output mode and the op-amps U062 and U063 are used to convert the DAC's
output to a voltage, and give it a gain of 6.8:1. To probe the output of the
DAC, one must probe the outputs of these op-amps. This means that any DAC
failures may actually be U062, or U063 failures.
Once the output of
the DACS has passed through a functioning Low-Pass Filter (U046 and U047), the
sine waves should then appear quite normal (as in the text books). The signal
can then be traced through all the way to the output jacks as a normal looking
sine wave.
The De-emphasis
network (the "ladder" of resistors and capacitors attached to U018,
and U018) gives the audio channels a –2 dB correction for every octave a sine
wave increases in frequency. Errors in this circuit will produce errors in the
frequency response portion of this test (steps 2 through 8). The signal will
disappear once at U018, pins 2 and 6, which is normal (this is called
"virtual ground"). The capacitors C077, C078, C011, and C013
introduce a –2 dB rolloff at 20 Hz.
The signal then
travels through the volume pot. The volume pot is a voltage divider. The
mechanical connection of the connector to the header on the CPU Board should be
checked to make sure it is steadfast.
Kurzweil1000 Series Service Manual, Chapter 4 4- 11
The Output
amplifier (U010) buffers the output to drive loads down to 600 ohms or less.
The relay (RL01) is
normally energized when the power is on. If the voltage difference across both
sides of CR11 is not 11-12 volts, the relay cannot energize, and the audio
channel will be muted (off). If one wishes to trace a sine wave through the
audio channel,
the step in the
test that produces the biggest (highest amplitude) sine wave is Step 10.
PLEASE REMEMBER TO
TURN THE VOLUME CONTROL ALL THE WAY
UP (CLOCKWISE).
Kurzweil1000 Series Service Manual, Chapter 4 4-12
4.3 -The following
is a description of probable causes for failures in Steps 1 through 11 of the
Sine Wave Test:
Step 1 failure,
Left and Right -
This step could
only fail if the meter could not be zeroed properly. If this is the case, try
continuing with the test to see if any other steps in the test pass. The most
likely causes of
this problem are a
bad Volume Pot Cable (J1 ), Arnold(s) (UO16, UO29) or DAC(s) (UO65, UO66, UO62,
UO63)0
Steps 2-6
failure, Left -
This step measures
the frequency response of the Audio Channel within the passband of the Low-Pass
Filter. If these measure- ments are off, the most likely causes are bad Volume
Pot Cable (J1 ), Arnold (UO29), the DAC (UO65, UO62), Low-pass filter (UO46),
De-emphasis network (signal path between UO46 and J1 ), or the Relay (RLO1).
Steps 2-6
failure, Right -
This step measures
the frequency response of the Audio Channel within the passband of the Low-Pass
Filter. If these measurements are off, the most likely causes are bad volume Pot Cable (J1 ), Arnolds (UO16,
UO29), the DAC (UO66, UO63), Low-pass filter (UO47), De-emphasis network
(signal path between UO47 and J1 ), or the Relay (RL01).
Steps 7-8
failure, Left -
This step measures
the frequency response of the Audio Channel within the stopband of the Low-Pass
Filter. If these measurements are off, the most likely causes are the DAC
(UO65, UO62), bad Volume Pot Cable (J1 ), Arnold (UO29), or the Low-pass filter
(UO46).
Kurzweil1000 Series Service Manual, Chapter 4 4-13
Steps 7-8
failure, Right -
This step measures
the frequency response of the Audio Channel within the stopband of the Low-Pass
Filter. If these measurements are off, the most likely causes are the DAC
(UO66, UO63), bad Volume Pot Cable (J1 ), Arnolds (UO16, UO29), or the Low-pass
filter (UO46).
Step 9 failure,
Right -
This step measures
the small signal distortion of the Audio Channel. If this measurement is off,
the most likely causes are the DAC (UO66, UO63), bad Volume Pot Cable (J1 ),
Arnolds (UO16, UO29), Dither circuit (UO64 and associated resistors), or Bit
Stripper (SP2).
Step 9 failure,
Left -
This step measures
the small signal distortion of the Audio Channel. If this measurement is off,
the most likely causes are the DAC (UO65, UO62), bad Volume Pot Cable (J1 ),
Arnold (UO29), or the Dither circuit (UO64 and associated resistors).
Step 10 failure,
Right -
This step measures
the large signal distortion, and voltage of the Audio Channel. If the
distortion measurement is off, the most likely causes are the DAC (UO66, UO63),
bad Volume Pot Cable (J1 ), or Arnolds (U016, UO29). If the voltage measurement
is off, the most likely causes are the Volume Pot and Cable (J1), Resistors
RO49 and RO51, or the De-emphasis network (U018 and associated Resistors and
Capacitors).
Step 10 failure,
Left -
This step measures
the large signal distortion, and voltage of the Audio Channel. If the
distortion measurement is off, the most likely causes are the DAC (UO65, UO62),
bad Volume Pot Cable (J1 ), or Arnold (UO29). If the voltage measurement is
off, the most likely causes are the Volume Pot and Cable (J1 ), Resistors RO46
and RO48, or the De-emphasis network (UO18 and associated Resistors and
Capacitors).
Kurzweil1000 Series Service Manual, Chapter 4 4-14
Step 11 failure,
Right -
This step measures
the Dynamic Range of the Audio Channel. If this measurement is off, the most
likely causes are the DAC (U066, U063), bad Volume Pot Cable (J1 ), Arnolds
(U016, U029), Dither circuit (U064 and associated resistors), Bit Stripper
(SP2), or Op-Amps (U018, U010).
Step 11 failure,
Left -
This step measures
the Dynamic Range of the Audio Channel. If this measurement is off, the most
likely causes are the DAC (U065, U062), bad Volume Pot Cable (J1 ), Arnold
(U029), Dither circuit (U064 and associated resistors), Bit Stripper (SP2), or
Op-Amps (U018, U010).
Kurzweil1000 Series Service Manual, Chapter 4 4-15
4.4 -TEXT MODE
ERROR MESSAGES
The following is a
list of "Text Mode" error messages from the 1000 diagnostic tests:
ERO1 >ILLEGAL
ERROR
This error message
is illegal (not used)
ERO2>PGM ROM LB
U32
The Lo Program
EPROM Checksum is wrong
ERO3>PGM ROM HB
CHECKSUM ERR U21
The Hi Program
EPROM Checksum is wrong
ERO4>SU ROM LB
CHECKSUM ERR U33
The Lo Setup EPROM
Checksum is wrong
ERO5>SU ROM
HBCHECKSUM ERR U22
The Hi Setup EPROM
Checksum is wrong
ERO6>RAM LB DATA
ERROR U30
RAM Lo Byte Data
Error (stuck data bit)
ERO7>RAM HB DATA
ERROR U30
RAM Hi Byte Data
Error (stuck data bit)
ERO8>RAM LB
ADDRESS ERR U30
RAM Lo Byte Address
Error (stuck addr bit)
ERO9>RAM HB
ADDRESS ERR U19
RAM Hi Byte Address
Error (stuck addr bit)
Kurzweil1000 Series Service Manual, Chapter 4 4-16
ER10>LB BATTERY
BACKUP ERROR U30
RAM
Lo Byte Battery Backup Error
ER11>HB BATTERY
BACKUP ERROR U19
RAM
Hi Byte Battery Backup Error
ER12> TIMER
REGISTER ERR U48
Timer
Register Data Error
ER13> TIMER
TIMING ERROR U48
Timer
Clock/Counter Error
ER14>TIMER
INTERRUPT ERROR U48
Timer
Interrupt Error
ER15>MIDI UART
REG ERROR U67
MIDI
Uart Register Data Error
ER16>MIDI UART
DATA ERROR U67
MIDI
Uart Data Loop-Back Error
ER17>MIDI UART
INT ERROR U67
M
I Dl Uart Interrupt Error
ER18>KEYBD UART
(*) REG ERROR U102
Keyboard
Uart Register Error
ER19>KEYBD UART
(*) DATA ERROR U102
Keyboard
Uart Data Loop Err. (cable req'd)
ER20>KEYBD UART
(*) INT ERROR U102
Keyboard
Uart Interrupt Error
Kurzweil1000 Series Service Manual, Chapter 4 4-17
ER21>ARNOLD O
DPRAM ERROR U16
Arnold
O Internal Dual Port RAM Error
ER22>ARNOLD 1
DPRAM ERROR U29
Arnold
1 Internal Dual Port RAM Error
ER23>ARNOLD O
ROM ERROR U16
Arnold
O Internal Rom Error
ER24>ARNOLD 1
ROM ERROR U29
Arnold
1 Internal Rom Error
ER25>ARNOLD O
MULT ERROR U16
Arnold
O Internal Multiplier Error
ER26>ARNOLD 1
MUL T ERROR U29
Arnold
1 Internal Multiplier Error
ER27>ARNOLD O
SAMPLE ERROR U16
N/A
(Obsolete Error Message)
ER28>ARNOLD 1
SAMPLE ERROR U29
N/A
(Obsolete Error Message)
ER29>SND ROM XO
CHECKSUM ERR US8
Sound
Rom XO (US8) Checksum is wrong
ER30>SND ROM YO
CHECKSUM ERR USO
Sound
Rom YO (USO) Checksum is wrong.
Kurzweil1000 Series Service Manual, Chapter 4 4-18
ER10>LB BATTERY
BACKUP ERROR U30
RAM
Lo Byte Battery Backup Error
ER11>HB BATTERY
BACKUP ERROR U19
RAM
Hi Byte Battery Backup Error
ER12> TIMER
REGISTER ERR U48
Timer
Register Data Error
ER13> TIMER
TIMING ERROR U48
Timer
Clock/Counter Error
ER14>TIMER
INTERRUPT ERROR U48
Timer
I nterrupt Error
ER15>MIDI UART
REG ERROR U67
MIDI
Uart Register Data Error
ER16>MIDI UART
DATA ERROR U67
M
I Dl Uart Data Loop-Back Error
ER17>MIDI UART
INT ERROR U67
M
I Dl Uart Interrupt Error
ER18>KEYBD UART
(*) REG ERROR U102
Keyboard
Uart Register Error
ER19>KEYBD UART
(*) DATA ERROR U102
Keyboard
Uart Data Loop Err. (cable req'd)
ER20>KEYBD UART
(*) INT ERROR U102
Keyboard
Uart Interrupt Error
Kurzweil1000 Series Service Manual, Chapter 4 4-17
ER21>ARNOLD O
DPRAM ERROR U16
Arnold
O Internal Dual Port RAM Error
ER22>ARNOLD 1
DPRAM ERROR U29
Arnold
1 Internal Dual Port RAM Error
ER23>ARNOLD 0
ROM ERROR U16
Arnold
O Internal Rom Error
ER24>ARNOLD 1
ROM ERROR U29
Arnold
1 Internal Rom Error
ER25>ARNOLD O
MULT ERROR U16
Arnold
O Internal Multiplier Error
ER26>ARNOLD 1
MUL T ERROR U29
Arnold
1 Internal Multiplier Error
ER27>ARNOLD O
SAMPLE ERROR U16
N/A
(Obsolete Error Message)
ER28>ARNOLD 1
SAMPLE ERROR U29
N/A
(Obsolete Error Message)
ER29>SND ROM XO
CHECKSUM ERR US8
Sound
Rom XO (US8) Checksum is wrong
ER3O>SND ROM YO
CHECKSUM ERR USO
Sound
Rom YO (USO) Checksum is wrong
Kurzweil1000 Series Service Manual, Chapter 4 4-18
ER31 >SND ROM ZO
CHECKSUM ERR U54
Sound
Rom ZO (U54) Checksum is wrong
ER32>SND ROM X1
CHECKSUM ERR U59
Sound
Rom X1 (U59) Checksum is wrong
ER33>SND ROM Y1
CHECKSUM ERR U51
Sound
Rom Y1 (U51) Checksum is wrong
ER34>SND ROM Z1
CHECKSUM ERR U55
Sound
Rom Z1 (U55) Checksum is wrong
ER35>SND ROM X2
CHECKSUM ERR U60
Sound
Rom X2 (U60) Checksum is wrong
ER36>SND ROM Y2
CHECKSUM ERR U52
Sound
Rom Y2 (U52) Checksum is wrong
ER37>SND ROM Z2
CHECKSUM ERR U56
Sound
Rom Z2 (U56) Checksum is wrong
ER38>SND ROM X3
CHECKSUM ERR U61
Sound
Rom X3 (U61) Checksum is wrong
ER39>SND ROM Y3
CHECKSUM ERR U53
Sound
Rom Y3 (U53) Checksum is wrong
ER40>SND ROM Z3
CHECKSUM ERR U57
Sound
Rom Z3 (U57) Checksum is wrong
Kurzweil1000 Series Service Manual, Chapter 4 4-19
ER41>ARNOLDO ONE
SAMP FIFO ER U16
Arnold
0 One Sample (DC) FIFO Error
ER42>ARNOLD1 ONE
SAMP FIFO ER U29
Arnold
1 One Sample (DC) FIFO Error
ER43>ARNOLDO SEV
SAMP FIFO ER U16
Arnold
0 Seven Sample Sine FIFO Error
ER44>ARNOLD1 SEV
SAMP FIFO ER U29
Arnold
1 Seven Sample Sine FIFO Error
ER45>MIDI LOOP
BACK ERROR U67
MIDI
In-Out Loop-Back Error (cable required)
*Note: Error
Messages marked with 1!(*)1! are only given in the 1000 products that include
keyboards, such as the K1000 and EGP .
Kurzweil1000 Series Service Manual, Chapter 4
4- 20
4.5 -ERROR
STATISTICS MESSAGES
The following is a
list of Error Statistic Messages from the Diagnostic Supervisor:
>UNKNOWN
FAILURE Illegal Error
(not used)
>MIDI
LOOP FAIL MIDI
Loop-Back Failure
>SOUND
ROM FAIL
Sound Rom (USO-61 )Failure
>ARNOLD
1 FAIL Arnold
1 Failure
>ARNOLD
O FAIL Arnold
O Failure
>INTERRUPT
FAIL Timer or
Uart Interrupt Failure
>UART
FAIL Uart
Failure
>
TIMER FAIL Timer
Failure
>BATT
BACK FAIL RAM
Battery Backup Failure
>RAM
FAIL RAM Failure
>SETUP
ROM FAIL Setup
EPROM Failure
>PGM
ROM FAIL Program
EPROM Failure
Kurzweil1000 Series Service Manual, Chapter 4 4- 21
-