Technics SX-KN7000GU, SX-KN7000GT, SX-KN7000GH, SX-KN7000GM, SX-KN7000GN Service Manual

ORDER NO. EMID0207013C0

PCM KEYBOARD

SX-KN7000P

SX-KN7000PC

SX-KN7000EX

SX-KN7000EF

SX-KN7000EH SX-KN7000EQ SX-KN7000EG

SX-KN7000EB

SX-KN7000EV

SX-KN7000GN

SX-KN7000GM

SX-KN7000GH

SX-KN7000GT

SX-KN7000GU

(P) U.S.A.

(PC) Canada

(EX) Norway, Sweden, Denmark, Finland, Spain, Portugal, Greece,

Poland, Czech,South Africa

(EF) France

(EH) Netherlands

(EQ) Germany

(EG) Austria, Switzerland, Italy

(EB) Great Britain

(EV) Belgium

(GN) Australia, New Zealand

(GM) Malaysia, Singapore

(GH) Hong Kong

(GT) Taiwan

(GU) Thailand, Indonesia, Dubai, Brazil, Philippines, Barkley(special)

SPECIFICATIONS

KEYBOARD

SOUND GENERATOR MAX. POLYPHONY

61 KEYS (WITH INITIAL TOUCH)

PCM

128 NOTES

SOUNDS NUMBER OF SOUNDS:

1236 SOUNDS (1187

SOUNDS + 2 ORGAN

DRAWBARS + 2 ORGAN

TABS + 3 ACCORDION

REGISTERS + 41 DRUM

KITS)

SOUND GROUP:

PIANO, GUITAR,

STRINGS &

VOCAL,BRASS, MALLET

& ORCH PERC, WORLD,

ORGAN &

ACCORDION,SAX &

WOODWIND, PAD ,

SYNTH, BASS, DRUM

KITS, DIGITAL

DRAWBAR, ORGAN

TABS, ACCORDION

SOUND EXPLORER:

Supported

EFFECT PART:

SUSTAIN, DIGITAL

EFFECT, SOUND DSP

GLOBAL:

REVERB, CHORUS,

MULTI, MIC

WHEEL

PITCH BEND,

MODULATION

PART SELECT

RIGHT 1, RIGHT 2, LEFT TRANSPOSE +/-12 NOTES RHYTHMS NUMBER OF RHYTHMS:

220 RHYTHMS × 4

VARIATIONS

RHYTHM GROUP:

8 & 16 BEAT, ROCK &

POP, BALLAD, JAZZ &

SWING, MODERN

DANCE, MARCH &

WALTZ, 60s & 70s,SOUL &

R&B, COUNTRY &

WESTERN, ORGANIST,

BALL ROOM, LATIN &

WORLD, ENTERTAINER,

MOVIE & SHOW,

FAVORITES

Supported

CONTROLS

MAIN VOLUME, APC/

SEQUENCER VOLUME,

LINE IN VOLUME, SD

VOLUME, BALANCE,

MUTE, CONDUCTOR,

START/STOP, INTRO &

ENDING 1, INTRO &

ENDING 2, FILL IN 1, FILL

IN 2, COUNT INTRO,

SYNCHRO&

BREAK,TEMPO/

PROGRAM, TAP TEMPO,

FADEIN/OUT, SPLIT

POINT

PERFORMANCE PADS 20 PRESET BANKS × 6

PADS WITH SOLO

USER BANK × 3,

COMPILE BANKS × 2,

CONTROL PRESET × 1

STOP, AUTO SETTING

AUTO PLAY CHORD

MODE: BASIC,

FINGERED, PIANIST

MEMORY, ON BASS,

CHORD FINDER, LEFT

HOLD MUSIC STYLE ARRANGER SOUND ARRANGER MUSIC STYLIST ONE TOUCH PLAY TECHNI-CHORD PANEL MEMORY

13 BANKS × 8, SET,

Supported Supported Supported Supported Supported

NEXT BANK, BANK VIEW,

CUSTOM PANEL

SEQUENCER 16 TRACKS

RESOLUTION: 1/96 PER

BEAT

STORAGE CAPACITY:

APPROX.40000 NOTES

(10 SONG MAX.)

INPUT MODES: EASY

RECORD, REALTIME

RECORD, STEP RECORD

FUNCTIONS: RECORD&

EDIT, COPY &

PASTE,RANGE EDIT

COMPOSER 8 PARTS: BASS,

ACCOMP 1 - 5, DRUMS 1,

STORAGE CAPACITY:

APPROX. 13000 NOTES

INPUT MODES: EASY

COMPOSER, REALTIME

RECORD, STEP RECORD

FUNCTIONS: PATTERN

COPY, CUSTOM STYLE

COPY, SEQ TO

COMPOSERCOPY, LOAD

SINGLE COMPOSER

MEMORY: 3 BANKS

DISK DRIVE 3.5 inch DISK DRIVE for

2HD (1.44MB), 2DD

(720KB)

LOAD, SAVE, DIRECT

PLAY, SONG MEDLEY,

DISK TOOLS,

PREFERENCES, STYLE

CONVERT, CUSTOM

STYLE LOAD/SAVE

SD CARD

LOAD, SAVE,

FAVORITES SONGS,

TECHNICS SONG

MEDLEY, SD-AUDIO

PLAY, SD-SOUND PLAY,

CUSTOM STYLE LOAD/

SAVE, SD CARD TOOLS,

SD PREFERENCES

SOUND SETTING

PART SETTING, MIXER,

MASTER TUNING, KEY

SCALING, TECHNI-

CHORD, SOUND LOAD

OPTION, APC REVERB

SETTING, MONITOR

SETTING, SEPARATE

SETTING

SOUND EDIT EASY EDIT, TONE,

PITCH, FILTER,

AMPLITUDE, LFO,

EFFECT, CONTROLLER

MEMORY: 40, 1 USER

DRUM KIT

REVERB & EFFECT

MIC REVERB & EFFECT,

SOUND LOAD OPTION,

ALLOCATION, MIXER,

SOUND DSP, MULTI,

CHORUS, REVERB,

EQUALIZER

CONTROL

INITIAL, OVERALL

TOUCH SENSITIVITY,

FOOT CONTROLLERS,

PANEL MEMORY MODE,

MUSIC STYLE

ARRANGER MODE, FADE

IN/OUT SETTING

CUSTOMIZE

HOME PAGE SETTING,

FAVORITE SETTING,

DISPLAY TIME OUT,

WALL PAPER SETTING,

MIDI SETTING LOAD

OPTION, DATA

PROTECTION,

LANGUAGE SELECT,

DISK PREFERENCE,

VIDEO OUT MODE

SETTING

MIDI

PART SETTING,

CONTROL MESSAGES,

REALTIME MESSAGES,

COMMON SETTING,

INPUT/OUTPUT SETTING,

MIDI PRESETS, MODE

SETTING, PROGRAM

CHANGE MIDI OUT,

PANEL MEMORY

OUTPUT, COMPUTER

CONNECTION

DISPLAY LCD

PAGE, CONTRAST, EXIT,

DISPLAY HOLD HELP DEMO

Supported Supported

TERMINALS

OUTPUT

SPEAKERS

POWER REQUIREMENT 75 W

DIMENSIONS (W×H×D)

NET WEIGHT ACCESSORIES

PHONES, FOOT SW 1, 2,

FOOT CONTROLLER,

EXP PEDAL, MAIN OUT (R

/MONO,L), SUB OUT (1,2)

AUX IN (R/MONO,L), LINE

IN (R/MONO,L), USB,

VIDEO OUT, MIDI (IN/

BASS PEDAL,

OUT,THRU), MIC

66 W (18 W × 2 FOR MID/

HIGH, 30 W × 1 FOR

BASS)

12 cm × 2, 6.5 cm × 2

FOR MID/HIGH, 14 cm × 1

FOR BASS

AC120/220/240V 50/60 Hz

AC120V 60 Hz (NORTH

AMERICA AND MEXICO)

AC230-240V 50/60 Hz

(EUROPE, AUSTRALIA

AND NEW ZEALAND

114 cm × 17 cm × 41 cm

(44-7/8” × 6-11/16” × 16-1/

8”)

17.6 kg (38.8 lbs)

AC CORD, MUSIC

STAND, STYLE CONVERT

DISK, INITIAL DATA

DISK, CD-ROM(AUDIO

RECORDER, SONG

MANAGER, USB DRIVER),

SD CARD

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'sManual.

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 onlythe 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: atleast6.5 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 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 MOhm to infinity for allexposedparts. (refer to Fig.1 )

Fig.1

3. OWNERS MANUAL

4. MIDI Implementation Chart

5. Keyboard Ranges

This keyboard features Touch Response, by which you control the volume by playing the keys harder or softer.

6. Parts Location

7. Disassembly Instructions

7.1. Removing the top cabinet

1. Turn the keyboard cabinet upside down, and remove the bottom screws ( 17 pcs.) as shown in Fig.2 .

2. Place the keyboard bottomside down, and open the top cabinet .

Fig.2

- The control panel is set up, and remove the top cabinet as shown in Fig.3 .

Fig.3

7.2. Removing the control panel, power SW panel, SD panel,

net panel and keyboard unit

- Remove the top cabinet (see step “Removing the top cabinet ”).

- Remove the bottom screws( 5pcs.) as shown in Fig.4

Fig.4

Control panel

1. Place the keyboard bottomside down.

2. Remove the control panel holding screws ( 4pcs.) as shown in Fig.7 .

Power SW panel

- Remove the power SW panel holding screws ( 2pcs.) as shown in Fig.7 .

SD panel

- Remove the SD panel holding screws ( 2pcs.) as shown in Fig.7 .

Net panel

- Remove the net panel holding screws ( 4pcs.) as shown in Fig.7 .

Keyboard unit

- Remove the keyboard unit holding screws ( 2pcs.) as shown in Fig.7 .

Fig.5

7.3. Removing the JACK and MAIN printed circuit boards

JACK P.C.B.

1. Remove the jack panel mounting screws ( 5pcs.) as shown in Fig.6 .

2. Remove the JACK P.C.B. mounting screws ( 3 pcs., 3pcs, 3pcs.)as shown in

Fig.6 .

Fig.6

MAIN P.C.B.

1. Remove the main shild top case mounting screws ( 6 pcs.) as shown in Fig.7 .

2. Remove the MAIN P.C.B. mounting screws ( 10pcs.) as shown in Fig.7 .

Fig.7

7.4. Removing the FAJ printed circuit board

FAJ P.C.B.

1. Remove the FAJ angle mounting screws ( 3pcs.) as shown in Fig.8 .

2. Remove the FAJ P.C.B. mounting screws ( 6pcs., 3pcs, 9pcs.)as shown in

Fig.8 .

Fig.8

ASUB P.C.B. disasemble

- Push the board holder libs as shown in Fig.8 .

ASUB P.C.B. asemble

- Paste the tape as shown in Fig.8

7.5. Removing the ACP printed circuit board

ACP P.C.B.

1. Remove the ACP cover mounting screws ( 3pcs.) as shown in Fig.9 .

2. Remove the ACP P.C.B.and insuration sheet mounting screw ( pc.) as shown in

Fig.9 .

Fig.9

7.6. Removing the LCD, CPL, CPC, CPR, ROT and INV

printed circuit boards

- Remove the control panel (see step “Removing the control panel, power SW panel,

SD panel, net panel and keyboard unit ”).

- Remove the control panel lid holding screws ( 10pcs.)as shown in Fig.10 .

LCD

1. Remove the LCD hinge holding screws ( 2pcs.) as shown in Fig.10 .

2. Remove the LCD holding screws ( 2pcs.) as shown in Fig.10 .

CPL P.C.B.

1. Pull off the SLIDE VOLUME knob as shown in Fig.10 .

2. Remove the CPL P.C.B. mounting screws ( 11 pcs.) as shown in Fig.10 .

CPR P.C.B.

- Remove the CPR P.C.B. mounting screws ( 11 pcs.) as shown in Fig.10 .

ROT P.C.B. , CPC P.C.B. and INV P.C.B.

1. Pull off the TEMPO/PROGRAM dial as shown in Fig.10 .

2. Remove the ROT P.C.B. mounting screws ( 2 pcs.) as shown in Fig.10 .

3. Remove the CPC P.C.B. mounting screws ( 2pcs.) as shown in Fig.10 .

4. Remove the INV P.C.B. mounting screws ( 2 pcs.) as shown in Fig.10 .

Fig.10

7.7. Removing the SD and SDSW printed circuit boards

- Remove the SD panel (see step “Removing the control panel, power SW panel, SD

panel, net panel and keyboard unit ”).

SD P.C.B.

- Remove the SD P.C.B. mounting screws ( 2pcs.) as shown in Fig.11 .

SDSW P.C.B.

- Remove the SDSW P.C.B. mounting screws ( 3 pcs.) as shown in Fig.11 .

Fig.11

7.8. Removing the BEND and the HP P.C.B.

- Remove the top cabinet (see step “Removing the top cabinet ”).

BEND P.C.B.

- Remove the BEND P.C.B. mounting screws ( 2 pcs.) as shown in Fig.12 .

HP P.C.B.

- Remove the HP P.C.B. mounting screw( ) as shown in Fig.12 .

Fig.12

7.9. Removing the Disk Drive Unit

1. Remove the Disk Drive unit mounting screws ( 4 pcs. ) as shown in Fig.13 .

2. Remove the Disk Drive unit holding screws ( 4 pcs. ) as shown in Fig.13 .

Fig.13

7.10. Removing the Power SW

1. Remove the Power SW panel (see step “Removing the control panel, power SW

panel, SD panel, net panel and keyboard unit ”).

2. Remove the power SW mounting screws ( 2pcs. ) as shown in Fig.14 .

Fig.14

7.11. Removing the 14cm SP, 12cm SP and 6.5cm SP

- Remove the top cabinet (see step “Removing the top cabinet ”).

14 cm SP

- Remove the 14 cm SP@holding screws ( 4pcs.) as shown in Fig.15 .

12 cm SP

- Remove the 12 cm SP holding screws ( 4pcs.) as shown in Fig.15 .

6.5 cm SP

- Remove the 6.5 cm SP holding screws ( 4pcs.) as shown in Fig.15 .

Fig.15

7.12. Removing the keys

- Remove the keyboard unit (see step “Removing the control panel, power SW panel,

SD panel, net panel and keyboard unit ”).

1. Press downward on the rear of the key as shown in Fig.16 .

2. While pressing downward on the rear of the key, push the key forward and release it from the chassis.

3. Lift the key and remove it from the chassis.

Fig.16

NOTE: To remove a black key, the white key to either side of it should be removed first.

8. Service Diagnostic Function

The service diagnostic function makes it possible to determine whether the various test modes pass or fail. The test modes are completely independent of one another. Select a test mode as necessary, and run the test.

To set to the service diagnostic mode:

1. Press and hold the C#3, D#3, C#4 keys, and then turn on the power switch. (refer to

Fig.20 )

Fig.20

2. After the service diagnostic screen is displayed on the LCD, release the three keys. (refer to Fig.21 )

3. Use the corresponding buttons below the “page select” display to select the respective test.

Fig.21

8.1. ROM device test

Fig.22

- Press the EXECUTE button to begin the test.

- The test result (OK or NG) is displayed within twenty seconds. If the test result is

NG, not only the respective IC, but also a break or short circuit in the ADDRESS/ DATA BUS as well as in any of the strobe signal lines may be the causeof thefailure. (refer to Fig.22 )

8.2. RAM device test

Fig.23

- Press the EXECUTE button to begin the test.

- The test result (OK or NG) is displayed within a few seconds. If the test result is NG,

not only the respective IC, but a break or short circuit in the ADDRESS/DATA BUS as well as in any of the strobe signal lines may be the causeofthe failure. (refer to

Fig.23 )

8.3. Other device test

Fig.24

- Press the EXECUTE button to begin the test.

- The test result (OK or NG) is displayed with in a few seconds. If the test result is

NG, not only the respective IC, but also a break or short circuit in the ADDRESS/ DATA BUS as well as in any of the strobe signal lines may be thecause of thefailure. (refer to Fig.24 )

8.4. Floppy Disk SAVE/LOAD test

Fig.25

- Insert a formatted floppy disk into the Disk Drive. Press the START button to begin

the test.

- The test is carried out repeatedly. Data is saved and loaded, and then the two data

sets are compared. The number of times that the test results in OK or NG are counted and displayed on the LCD. To interrupt the test, press the STOP button.(referto Fig.25 )

- Even when the Floppy Disk Drive is functioning properly, the test can result in NG.

If this happens frequently, clean the magnetic heads of the Floppy Disk Drive with a

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