Technics SX-PX554 User manual

ORDER NO. EMID0004007C0
A5
Digital Piano
SX-PX554 / SX-PX554M
(P) U.S.A.
(PC) Canada
(PY) Mexico
(EX) Norway, Sweden, Denmark, Finland, Spain, Portugal, Greece, South
Africa
(EZ) Germany
(EG) Switzerland, Italy, Austria, Holland, Belgium, France
(EB) the United Kingdom
(GN) Australia, New Zealand
(XS) Malaysia, Singapore
(XT) Taiwan
(X) Thailand, Columbia, Panama, Philippines
(XA) Argentina
(XD) Hong, Kong
SPECIFICATIONS
SPECIFICATIONS
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Digital Piano 1
SPECIFICATIONS 1
1. WARNING 3
2. SAFETY PRECAUTION 3
2.1. Safety precaution 3
2.2. Insulation resistance test 4
3. OWNERS MANUAL 4
4. HOW TO ASSEMBLE THE PIANO 4
5. KEYBOARD RANGES 6
6. PARTS LOCATION 7
7. DISASSEMBLY INSTRUCTIONS 7
7.1. Removing the top cover 7
7.2. Removing the keyboard cover 7
7.3. Removing the control panel 8
7.4. Removing the keyboard assembly 8
7.5. Key(s) 9
7.6. Disassembly of the pedal assembly 10
7.7. Removing the speakers 10
7.8. Removing the printed circuit boards 11
8. SELF-DIAGNOSTIC FUNCTIONS 12
9. PRECAUTIONS BEFORE SERVICING 14
9.1. Precautions for measuring of the output waveforms 14
9.2. Important safety notice 15
9.3. Symbolic marks 15
9.3.1. Resistors 15
Table-1 15
9.3.2. Capacitors 16
Table-2 16
10. MEASURING CONDITION 16
10.1. Measuring condition of MAIN P.C.B. 17
10.2. Measuring condition of FAJSP P.C.B. 17
11. SCHEMATIC DIAGRAM 18
12. PRINTED CIRCUIT BOARD 18
12.1. MAIN, FAJSP, CPL P.C.B. 18
12.2. CPR, MKB1, MKB2, PKB, COM, HP P.C.B. 18
13. BLOCK DIAGRAM 18
14. WIRING CONNECTION DIAGRAM 18
15. REPLACEMENT PARTS LIST 18
16. CABINET PARTS LOCATION 37
17. PACKAGING 40
svcdoc
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KEYBOARD 88 KEYS
MAX. POLYPHONY 64 NOTES
SOUND 18 SOUNDS: CONCERT
GRAND, POP GRAND,
UPRIGHT, E PIANO 1, E PIANO
2, HARPSI, VIBES, STRINGS,
VOCAL, ORGAN PRESETS
PEDAL SOFT, SOSTENUTO, SUSTAIN
BRILLIANCE MELLOW, BRIGHT (5 STEPS)
DIGITAL EFFECT Supported
DIGITAL REVERB Supported (ROOM, STAGE,
HALL, CONCERT)
TOUCH SENSITIVITY LIGHT, NORMAL, HEAVY
TRANSPOSE G - C - F#
TUNING 427.3Hz-440.0Hz-453.0Hz
METRONOME Supported (TIME SIGNATURE:
OFF, 2/4, 3/4, 4/4, 5/4, 6/8)
SEQUENCER TRACK (1, 2), STORAGE
CAPACITY: APPROX. 4500
NOTES, RECORDING MODE:
REAL TIME
DISPLAY Supported
DEMO Supported
MIDI MILTI TIMBRE, LOCAL
CONTROL, OMNI ON,
PROGRAM CHANGE, PEDAL,
EFFECT, TRANSPOSE
MODE SET PIANO TUNING, MINIMUM
RANGE
OTHERS POWER SWITCH, MAIN VOLME,
MIDI TERMINALS (IN, OUT),
PEDAL IN, AUX IN (R/R+L,L),
LINE OUT (R/R+L,L),
COMPUTER, HEADPHONES ×
2, AC IN, INITIAL KEY
OUTPUT 120 W (60 W × 2)
SPEAKERS 14 cm × 2, 6.5 cm × 2
POWER REQUIREMENT 160 W
AC 120V/220/230-240 V 50/60Hz
/ AC 120V 60Hz (NORTH
AMERICA AND MEXICO) /
AC230-240 V 50/60Hz
(EUROPE, AUSTRALIA AND
NEWZEALAND)
DIMENSIONS (W×H×D) 138.7 cm × 106.4 cm × 52 cm (54
-19/32” x 41-7/8” x 20-15/32”)
NET WEIGHT 56 kg (123.5 lbs.)
ACCESSORIES AC CORD
2000 Matsushita Electric Industrial Co., Ltd. All rights reserved.
Unauthorized copying and distribution is a violation of law.
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1. WARNING
To prevent the risk of fire, smoke, or electrical shock and to ensure safe operation, please be sure to
follow the safety guidelines below.
1. At places where special caution is required, the necessary safety
precautions are clearly labeled or printed, for example, on the cabinet,
or on the part concerned. Please follow these safety precautions, and
also those listed in the Owner's Manual.
2. Parts which have a mark in the circuit diagram or in the parts list
are essential for safety. When replacing these parts, be sure to use
only the specified parts.
3. Use the specified types for internal wiring (double-insulated wiring,
etc.).
4. When replacing parts on the AC primary side (power transformer,
electric switch, electrical cord, noise-prevention condenser, etc.), wind
the lead wire and secure it by soldering.
5. Do not let the wiring come into contact with heat-emitting devices
(fuse resistor, radiator plate, etc.).
6. When replacing the wiring, make sure that it is not in contact with the
unfinished or rough edge of a part.
7. When replacing the power cord (except for the plug-in type), tug it
from various directions to confirm that it does not slip out of place.
8. Spacing
If soldering was done on the AC primary circuit, confirm that the
interval between the soldered terminals or between the terminal and
surrounding metallic parts is at least the minimum required (between
the primary circuit and the chassis: at least 6.5 mm; between primary
circuit terminals: at least 4.0 mm; between primary circuit terminals
and secondary circuit terminals: at least 6.5 mm.).
2. SAFETY PRECAUTION
2.1. Safety precaution
1. Before servicing, unplug the power cord to prevent an electric shock.
2. When replacing parts, use only the manufacturer’s recommended
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components for safety.
3. Check the condition of the power cord. Replace if wear or damage is
evident.
4. After servicing, be sure to restore the lead dress, insulation barriers,
insulation papers, shields, etc.
5. Before returning the serviced equipment to the customer, be sure to
make the following insulation resistance test to prevent the customer
from being exposed to a shock hazard.
2.2. Insulation resistance test
1. Unplug the power cord and short the prongs of the plug with a jumper
wire.
2. Turn on the power switch.
3. Measure the resistance value with an ohmmeter between the jumpered
AC plug and each exposed metal cabinet part, such as screw heads,
connectors, control shafts, handle brackets, etc. Measurements
should range from 4 M Ohm to infinity for all exposed parts.
Figure-1
3. OWNERS MANUAL
4. HOW TO ASSEMBLE THE PIANO
To prevent the piano unit from falling off the stand, secure it firmly with the screws.
1. Assemble the right and left planks
- Assemble the right and left planks to the pedal box with the 4 brass-
colored screws.
- Loosen the pedal cord, stowed on the inner side of the pedal box, and
extend it.
Figure-2
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2. Place the stand uplight and mount the panel
- Place the stand upright and mount the rear panel with 2 black screws A
and 4 black screws B.
- Run the screws directly into the pedal box as there are no rough holes
in the pedal box.
Figure-3
3. Place the piano body
- Place the piano body on the stand and secure it with 4 black screws A.
Figure-4
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4. Connect the pedal cord and power cord
- Connect the pedal cord and power cord to the terminals located on the
rear of the piano unit as shown below.
- Secure the pedal cord to the clamps as shown in the figure.
Figure-5
5. KEYBOARD RANGES
This keyboard features Touch Response, by which you control the volume by playing the keys harder
or softer.
Figure-6
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6. PARTS LOCATION
Figure-7
7. DISASSEMBLY INSTRUCTIONS
7.1. Removing the top cover
1. Remove the top cover mounting screws (A 4 pcs.) as shown in Figure-
8.
2. Slide the top cover forward and lift up (as shown by the arrows).
7.2. Removing the keyboard cover
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1. Remove the top cover (see step “Removing the top cover”).
2. Match the gears of the keyboard cover with the notches in the guide
rail, and lift up the keyboard cover as shown in Figure-8.
Figure-8
7.3. Removing the control panel
- Pull out the connectors on the control panel.
1. Remove the keyboard cover (see step “Removing the keyboard cover
”).
2. Remove the control panel mounting screws (A 2 pcs. and B 1 pc.) as
shown in Figure-9.
3. Slide the control panel forward and pull out (as shown by the arrow).
Figure-9
7.4. Removing the keyboard assembly
1. Remove the control panel (see step “Removing the control panel).
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2. Remove the keyboard assembly mounting screws located on the
bottom of the cabinet (A 10 pcs.) as shown in Figure-10.
Figure-10
7.5. Key(s)
Disassembly
1. Remove the keyboard assembly (see step “Removing the keyboard
assembly”).
2. While inserting a thin plate to press down a claw, push the rear of the
key forward to disengage the key claw from the chassis.
3. Lift the key up to remove it.
Note:
- The key claw is easily broken. Do not apply undue force. Should a key
claw break, it can still be used.
- If a black key is to be replaced, it is necessary to remove both adjacent
white keys.
Figure-11
/ / / /
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