General Music GRP300 BALDWIN, Service Manual

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3
J J J J J
Operation Descriptions Display
The procedures that follow must be executed subsequently in the order specified.
Before turn on the instrument check the jumpers setting on CPU & SOUND
GENERATOR BOARD corresponds at the model accordingly to the following table:
MODEL J4 J5 J3 J6 J2
RP100 GEM 1-2 1-2 1-2 1-2 1-2
RP100 BALDWIN 1-2 1-2 1-2 1-2 2-3
RP150 GEM 1-2 1-2 1-2 2-3 1-2
RP150 BALDWIN 1-2 1-2 1-2 2-3 2-3
RP90 GEM 1-2 1-2 2-3 1-2 1-2 ** v.2.00 or greater
RP90 BALDWIN 1-2 1-2 2-3 1-2 2-3 ** v.2.00 or greater
Remove the secondary fuses F1, F2, F3, located on POWER AMPLIFIER & SUPPLY
BOARD; turn on the instrument and verify the supply AC voltages:
(CN5) between pin1 and pin3 = 10±0,5Vac
(CN9) between pin1 and pin2 = 16±0,8Vac
(CN9) between pin1 and pin3 = 16±0,8Vac
(CN9) between pin2 and pin3 = 32±1,6Vac
Turn off the instrument, and put the fuses back on its holders.
Turn on the instrument and the appropriate welcome message appears on the display.
A few seconds later the led GRAND PIANO light.
Check the supply DC voltages on CPU & SOUND GENERATOR BOARD:
(CN8) between pin9 and pin7 = +5±0,25Vdc
(CN8) between pin1 and pin4 = +12±0,6Vdc
(CN8) between pin1 and pin5 = -12±0,6Vdc
|INTERNAL PRESET|
| GRAND PIANO |
RP100-150 AUTOTEST PROCEDURE
Operation Descriptions Display
The instrument starts in AUTOTEST mode turning on the instrument while pressing
down the "GRAND PIANO" button (pressing PRESET instead GRAND PIANO the
procedure starts from LCD display test).
NOTE: Each time you press the "GRAND PIANO" button the autotest procedure
proceeds to the next step.
| RP98 |
| AUTOTEST |
Set the default display contrast in the ±6 range by pressing the DATA + or - buttons.
|CONTRAST = # |
| |
The instrument show the date, time and release version of the software loaded in
flash memory.
| mmm dd yyyy |
|hh:mm:ss V #.##|
The instrument asks if you want to update it, press GRAND PIANO to skip, the
appropriate procedure to update the software is explained further.
|EPROM to FLASH |
|push REC to prog|
The instrument performs the flash memory data checksum and display it in
hexadecimal value.
NOTE: the BT (boot) value must be 95C4 for ver.2.00, if it does not correspond you
can not update software thru serial port but only with Update Software Board.
|Wait * |
|Eprom Checksum |
|cks BT PR ALL|
| #### #### ####|
The instrument performs the RAM memory test showing the address checked.
|RAM MEMORY CHECK|
|addr 23BFFF OK|
The LCD display test shows two rows of sixteen dark spaces.
|
❚ ❚ ❚ ❚ ❚ ❚ ❚ ❚ ❚ ❚ ❚ ❚ ❚ ❚ ❚
|
|
❚ ❚ ❚ ❚ ❚ ❚ ❚ ❚ ❚ ❚ ❚ ❚ ❚ ❚ ❚
|
Check that all leds are lighting.
|--- LED TEST ---|
|Are all leds on?|
Check the VOLUMES ranges from 0 to 127.
Check all buttons (except GRAND PIANO) pressing their one at a time and checking
that corresponding led lights, pressing PAGE UP and DOWN buttons the display shows
"U" and "D", pressing DATA + and - buttons the display shows "+" and "-", pressing
BALANCE < and > buttons the display shows an "X" in 1 and 2 digits, pressing
TOUCH, STORE and REC/CONTROL buttons the display shows an "X" in 3, 4 and 5
digits respectively.
| |Button test |
| |Vol:0 12345 |
|U|Button test +|
|D|Vol:127 XXXXX-|
Check the SOFT and SUSTAIN pedals, pressing each one the value change from 0
(released) to 127 (pressed), for RP100 the DAMPER pedal operation is similar, for
RP150 the DAMPER pedal varying its value continuosly from 0 (released) to nearly
127 (pressed).
|Soft Sust Damp|
| 0 0 0|
Check the MIDI I/O connecting the MIDI OUT and MIDI IN sockets by a MIDI cable.
|TEST MIDI IN/OUT|
|LOOP DETECTED OK|
Check COMPUTER I/O shorting pin 3 and pin 5 on the COMPUTER socket, check with
the oscilloscope a 4Vpp (1Mhz) signal on pin 1, set volume to half stroke.
|TST COMPUTER I/O|
|LOOP DETECTED OK|
The instrument generates a 1KHz sinusoidal signal in both audio channels. VOLUME
fader controls the amplitude of signal and TRANSPOSE b and # buttons controls the
frequency from 10Hz to 2756Hz.
| SINUS. SWEEP |
|Freq. 1000 Hz|
| * REALPIANO * |
| RP100 |
| * BALDWIN * |
|PIANOVELLE RP100|
| * REALPIANO * |
| RP150 |
| * BALDWIN * |
|PIANOVELLE RP150|
| * REALPIANO * |
| RP90 |
| * BALDWIN * |
|PIANOVELLE RP90 |
RP100-150 INITIAL CHECK Re-set the frequency at 1KHz and check HEADPHONES and AUX outputs with the
oscilloscope inserting a stereo jack in the left phones socket (speakers will go be
silent) and two mono jack in the AUX OUT sockets and set volume to its maximum.
Now verify the following level of signals:
Phones output without load = 17±1.7Vpp
AUX output = 1.35±0.14Vpp
Set the VOLUME to minimum.
Apply a sinusoidal signal of 0.730Vpp at 1KHz with a generator to the AUX IN left and
right sockets and verify the signal output:
AUX output = 1.35±0.07Vpp
Autotest is over, turn off the instrument.
|TEST END: SWITCH|
|POWER TO RESTART|
RP100-150 O.S. UPDATING PROCEDURE up to ver. 2.00 with Updating Software Board (751180)
Operation Descriptions Display
Start with the instrument in AUTOTEST mode as described above and press GRAND
PIANO 2 times until the display shows the software version loaded in flash memory.
| mmm dd yyyy |
|hh:mm:ss V #.##|
Press GRAND PIANO to skip this procedure.
|EPROM to FLASH |
|push REC to prog|
The instrument performs the flash memory data checksum and display it in
hexadecimal value.
|Wait * |
|Eprom Checksum |
|cks BT PR ALL|
| #### #### ####|
Compare the software version and checksum with the value imprinted onto the
EPROM, if one of these does not match, the system must be upgraded, proceed to the
next step.
Turn off the instrument.
Insert the EPROM BOARD (where the operating system is stored) in the CN3
connector located on CPU & SOUND GENERATOR BOARD.
Start with the instrument in AUTOTEST mode as described above and press GRAND
PIANO 3 times.
When the display shows this message press REC.
|EPROM to FLASH |
|push REC to prog|
The instrument erases the previous data in flash memory. After which the instrument
displays the amount of memory programming and finally the operation successful. If
the programming fails check the EPROM BOARD connection and repeat this procedure
from start.
|EPROM to FLASH |
|erasing |
|EPROM to FLASH |
|prog: 1024/1024K|
The instrument performs the eprom memory data checksum and displays it in
hexadecimal value, compare this value with the value imprinted onto the EPROM: if it
matches the EPROM is good.
|Wait * |
|Eprom Checksum |
|cks BT PR ALL|
| #### #### ####|
Turn off the instrument and disconnect the EPROM BOARD.
Start with the instrument in AUTOTEST mode as described above and press GRAND
PIANO 2 times until the display show the new software version loaded in flash
memory.
| mmm dd yyyy |
|hh:mm:ss V #.##|
Press GRAND PIANO to skip this procedure.
|EPROM to FLASH |
|push REC to prog|
The instrument performs the flash memory data checksum and displays it in
hexadecimal value, compare this value with the value imprinted onto the EPROM: if it
matches the procedure has been executed succesfully.
|Wait * |
|Eprom Checksum |
|cks BT PR ALL|
| #### #### ####|
The procedure proceed as described in AUTOTEST section, if you do not want to check
the rest of the instrument simply turn off it.
RP100-150 O.S. UPDATING PROCEDURE from Serial Port (COMPUTER) ver. 2.xx or greater
Operation Descriptions Display
NOTE: This procedure is valid only if the software version installed on the piano is the
2.00 or greater.
Some additional tips and advices are included in the Flashblaster Firmware Update
Disk. The disk containing the Fblaster program can also be downloaded by internet at
generalmusic web site (www.generalmusic.com) or required at
support@generalmusic.com
Connect the serial cable between the COMPUTER of the piano and the RS232 COM
port of the computer (PC-Ibm or compatible).
Insert the disk in the drive A (or whatever your 3.5" drive is assigned to), open the
contents of drive A and double click on the fblaster.exe file.
From the OPTIONS/SETTINGS menu, make sure that the TEST AND PROGRAM choice
is selected. This is very important.