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4
pRP6 TEST PROCEDURE
This procedure are not intended to repair a fault but only to check the proper instrument operations after a repairing
execution. The procedures that follow must be executed in the order specified.
Instrument and Tools
1)
Dual trace oscilloscope (Note: the Oscilloscope must be earth insulated).
2)
Sinusoidal signal generator.
3)
Digital Multimeter.
4)
N.1 Midi cable.
5)
N.1 Stereo jack plug.
6)
N.2 Mono jack plug.
Setup
l
Insert the mono jacks into the LEFT and RIGHT OUTPUTS.
l
Check jumper positions: for pRP6 none must be shorted.
Supplies Check
l
Check with the Multimeter the following voltages on "Cpu & Sound Generator Board":
l
Switch off
CN7 pin1-4 = +3.6Vdc (+VBAT for memory backup)
l
Switch on
CN7 pin1-4 = +4.8Vdc (+VBAT for battery recharging)
CN7 pin1-5 = +5Vdc (+5VB for analog DAC supply)
CN8 pin2-4 = +5Vdc (+5V for digital supply)
Memory and System Reset
l
To Re-set the instrument press the two SOUND/DATA buttons while holding pressed the GRAND PIANO button.
The Led turns off and after some seconds lights on again. This operation clear all data in memory.
Speakers Check
l
Press and hold C6 note key and then GRAND PIANO and SOUND/DATA UP buttons: playing a note (OBOE preset)
it must be heard from right speaker.
l
Press and hold D6 note key and then GRAND PIANO and SOUND/DATA UP buttons: playing a note (OBOE preset)
it must be heard from left speaker.
Right & Left Output Levels Check
Check the levels as follow:
l
Set the VOLUME at max.
l
Connect the probes of the oscilloscope between the pins of the speakers, set them at 1ms/div. 5V/div.
l
Press and hold E6 note key then GRAND PIANO and SOUND/DATA UP button: Play the C5 note (OBOE preset) with
the maximum dynamic, the note must be heard from each speaker without distortions or oscillations, the level
displayed on the oscilloscope screen must be 17.5±1Vpp.
l
Connect the two probe tips of the oscilloscope to the tip and ring contacts of the stereo jack plug plugged into
PHONES and a ground clip to the sleeve of the same jack plug, set it at 1ms/div. 1V/div.
l
Play the C5 note with the maximum dynamic, the level displayed on the oscilloscope screen must be 4.2±0.1Vpp.
l
Connect the first trace of the oscilloscope to the tip and sleeve contacts of the mono jack plugged into RIGHT
OUTPUT, set it at 1ms/div. 0.5V/div.
l
Connect the other trace of the oscilloscope to the tip and sleeve contacts of the stereo jack plugged into LEFT
OUTPUT, set it at 1ms/div. 0.5V/div.
l
Play the C5 note with the maximum dynamic, the level displayed on the oscilloscope screen must be 1.6±0.2Vpp.
Right & Left Inputs Levels Check
Check the levels as follow:
l
Set the sinusoidal generator at 1KHz 400mVpp.
l
Connect the generator to the RIGHT INPUT.
l
Set the oscilloscope at 2ms/div. 0.2V/div.
l
A sinusoidal signal of 1±0.1Vpp must be showed on the scope screen.
l
Also check the LEFT INPUT.
Pedals Check
l
Plug the switch pedals into the DAMPER JACK socket, press down the pedal and then press a note key: the
instrument plays the note, release the note key and the sound holds on, release the pedal and the sound shuts
off.
l
Plug the switch pedals into the PEDAL JACK socket, press a note key while pressing the pedal the sound is more
soft.
Midi In/Out Check
l
Set the Local Off pressing and holding F7 note key and then SOUND/DATA DOWN button.
l
Playing some notes you do not hear sound, connect the midi cable between MIDI IN and OUT sockets, play again
and now the instrument sound.
l
Restore the Local On pressing and holding F7 note key and then SOUND/DATA UP button.
Reliability Check
Before reassembling the instrument and before return it to the user, it is a goal verify its reliability:
Leaving it switched on and operating with greatest caution, carefully shake the boards and connections using an
insulated tool to find faulty contacts, bad solderings and so on, at the same time verify the instrument working.
Start the Demo pressing SOUND/DATA DOWN and SOUND/DATA UP simultaneously, leave it switched on for a long
time verifing its functionality occasionnally.
pRP7 TEST PROCEDURE
This procedure are not intended to repair a fault but only to check the proper instrument operations after a repairing
execution. The procedures that follow must be executed in the order specified.
Instrument and Tools
1)
Dual trace oscilloscope (Note: the Oscilloscope must be earth insulated).
2)
Sinusoidal signal generator.
3)
Digital Multimeter.
4)
N.1 Midi cable.
5)
N.1 Stereo jack plug.
6)
N.2 Mono jack plug.
Setup
l
Insert the mono jacks into the LEFT and RIGHT OUTPUTS.
l
Check jumper positions: for pRP7 J3 is shorted and J2 is open.
Supplies Check
l
Check with the Multimeter the following voltages on "Cpu & Sound Generator Board":
l
Switch off
CN7 pin1-4 = +3.6Vdc (+VBAT for memory backup)
l
Switch on
CN7 pin1-4 = +4.8Vdc (+VBAT for battery recharging)
CN7 pin1-5 = +5Vdc (+5VB for analog DAC supply)
CN8 pin2-4 = +5Vdc (+5V for digital supply)
Memory and System Reset
l
To Re-set the instrument press the two SOUND/VARIATIONS buttons while holding pressed the GRAND PIANO
button.
All Leds turn off and after some seconds light on again. This operation clear all data in memory.
Speakers Check
l
Press and hold A6 note key and then GRAND PIANO and TEMPO/DATA UP buttons: playing a note (OBOE preset)
it must be heard from right speaker.
l
Press and hold G6 note key and then GRAND PIANO and TEMPO/DATA UP buttons: playing a note (OBOE preset)
it must be heard from left speaker.
Right & Left Output Levels Check
Check the levels as follow:
l
Set the VOLUME at max.
l
Connect the two probe tips of the oscilloscope to the tip and ring contacts of the stereo jack plug plugged into
PHONES and a ground clip to the sleeve of the same jack plug, set it at 1ms/div. 1V/div.
l
Press and hold B6 note key then GRAND PIANO and TEMPO/DATA UP button: Play the C5 note (OBOE preset) with
the maximum dynamic, the level displayed on the oscilloscope screen must be 4.2±0.1Vpp.
l
Connect the first trace of the oscilloscope to the tip and sleeve contacts of the mono jack plugged into RIGHT
OUTPUT, set it at 1ms/div. 0.5V/div.
l
Connect the other trace of the oscilloscope to the tip and sleeve contacts of the stereo jack plugged into LEFT
OUTPUT, set it at 1ms/div. 0.5V/div.
l
Play the C5 note with the maximum dynamic, the level displayed on the oscilloscope screen must be 1.6±0.2Vpp.
Right & Left Inputs Levels Check
Check the levels as follow:
l
Set the sinusoidal generator at 1KHz 400mVpp.
l
Connect the generator to the RIGHT INPUT.
l
Set the oscilloscope at 2ms/div. 0.2V/div.
l
A sinusoidal signal of 1±0.1Vpp must be showed on the scope screen.
l
Also check the LEFT INPUT.
Pedals Check
l
Plug the switch pedals into the DAMPER JACK socket, press down the pedal and then press a note key: the
instrument plays the note, release the note key and the sound holds on, release the pedal and the sound shuts
off.
l
Plug the switch pedals into the PEDAL JACK socket, press a note key while pressing the pedal the sound is more
soft.
Midi In/Out Check
l
Set the Local Off pressing and holding B7 note key and then TEMPO/DATA DOWN button.
l
Playing some notes you do not hear sound, connect the midi cable between MIDI IN and OUT sockets, play again
and now the instrument sound.
l
Restore the Local On pressing and holding B7 note key and then TEMPO/DATA UP button.
Reliability Check
Before reassembling the instrument and before return it to the user, it is a goal verify its reliability:
Leaving it switched on and operating with greatest caution, carefully shake the boards and connections using an
insulated tool to find faulty contacts, bad solderings and so on, at the same time verify the instrument working.
Start the Demo pressing the two SOUND/VARIATIONS buttons simultaneously, finally leave it switched on for a long
time verifing its functionality occasionnally.
pRP8 TEST PROCEDURE
This procedure are not intended to repair a fault but only to check the proper instrument operations after a repairing
execution. The procedures that follow must be executed in the order specified.
Instrument and Tools
1)
Dual trace oscilloscope (Note: the Oscilloscope must be earth insulated).
2)
Sinusoidal signal generator.
3)
Digital Multimeter.
4)
N.1 Midi cable.
5)
N.1 Stereo jack plug.
6)
N.2 Mono jack plug.
Setup
l
Insert the mono jacks into the LEFT and RIGHT OUTPUTS.
l
Check jumper positions: for pRP8 J2 is shorted and J3 is open.
Supplies Check
l
Check with the Multimeter the following voltages on "Cpu & Sound Generator Board":
l
Switch off
CN7 pin1-4 = +3.6Vdc (+VBAT for memory backup)
l
Switch on
CN7 pin1-4 = +4.8Vdc (+VBAT for battery recharging)
CN7 pin1-5 = +5Vdc (+5VB for analog DAC supply)
CN8 pin2-4 = +5Vdc (+5V for digital supply)
Memory and System Reset
l
To Re-set the instrument press the two SOUND/VARIATIONS buttons while holding pressed the GRAND PIANO
button.
All Leds turn off and after some seconds light on again. This operation clear all data in memory.
Speakers Check
l
Press and hold A6 note key and then GRAND PIANO and TEMPO/DATA UP buttons: playing a note (OBOE preset)
it must be heard from right speaker.
l
Press and hold G6 note key and then GRAND PIANO and TEMPO/DATA UP buttons: playing a note (OBOE preset)
it must be heard from left speaker.
Right & Left Output Levels Check
Check the levels as follow:
l
Set the VOLUME at max.
l
Connect the probes of the oscilloscope between the pins of the speakers, set them at 1ms/div. 5V/div.
l
Press and hold B6 note key then GRAND PIANO and TEMPO/DATA UP button: Play the C5 note (OBOE preset) with
the maximum dynamic, the note must be heard from each speaker without distortions or oscillations, the level
displayed on the oscilloscope screen must be 17.5±1Vpp.
l
Connect the two probe tips of the oscilloscope to the tip and ring contacts of the stereo jack plug plugged into
PHONES and a ground clip to the sleeve of the same jack plug, set it at 1ms/div. 1V/div.
l
Play the C5 note with the maximum dynamic, the level displayed on the oscilloscope screen must be 4.2±0.1Vpp.
l
Connect the first trace of the oscilloscope to the tip and sleeve contacts of the mono jack plugged into RIGHT
OUTPUT, set it at 1ms/div. 0.5V/div.
l
Connect the other trace of the oscilloscope to the tip and sleeve contacts of the stereo jack plugged into LEFT
OUTPUT, set it at 1ms/div. 0.5V/div.
l
Play the C5 note with the maximum dynamic, the level displayed on the oscilloscope screen must be 1.6±0.2Vpp.
Right & Left Inputs Levels Check
Check the levels as follow:
l
Set the sinusoidal generator at 1KHz 400mVpp.
l
Connect the generator to the RIGHT INPUT.
l
Set the oscilloscope at 2ms/div. 0.2V/div.
l
A sinusoidal signal of 1±0.1Vpp must be showed on the scope screen.
l
Also check the LEFT INPUT.
Pedals Check
l
Plug the switch pedals into the DAMPER JACK socket, press down the pedal and then press a note key: the
instrument plays the note, release the note key and the sound holds on, release the pedal and the sound shuts
off.
l
Plug the switch pedals into the PEDAL JACK socket, press a note key while pressing the pedal the sound is more
soft.
Midi In/Out Check
l
Set the Local Off pressing and holding B7 note key and then TEMPO/DATA DOWN button.
l
Playing some notes you do not hear sound, connect the midi cable between MIDI IN and OUT sockets, play again
and now the instrument sound.
l
Restore the Local On pressing and holding B7 note key and then TEMPO/DATA UP button.
Reliability Check
Before reassembling the instrument and before return it to the user, it is a goal verify its reliability:
Leaving it switched on and operating with greatest caution, carefully shake the boards and connections using an
insulated tool to find faulty contacts, bad solderings and so on, at the same time verify the instrument working.
Start the Demo pressing the two SOUND/VARIATIONS buttons simultaneously, finally leave it switched on for a long
time verifing its functionality occasionnally.