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TUNING

Most guitar players tune their guitar by themselves as they like.
Do not adjust tunings of a customer’s guitar at usual repairs, because the tunings may be re-adjusted by a
customer. Only after  replacing the neck, the bridge or the pickup, adjust a certain tuning item shown in the
following table.

Tools/Equipments required

4 mm hexagon key (Accessory tool)
1.5 mm hexagon key (Accessory tool)
Guitar tuning meter

TUNING PROCEDURE

Please refer to the tuning instructions in the operation namual also.

To adjust warp of neck

1. Check the space between a string and the 10th fret when pressing the string at the 1st fret and at the 19th

fret.
And check all strings.

2. If the space exceeds 0.3 mm, straighten the neck by turning the nut in the head clockwise with a 4 mm

hexagon key.

To adjust pickup height

1. Press a string at 22nd fret.
2. Use a screw driver, adjust a height of the pickup to be 2 mm off from the string by turning two screws at both

ends of the pickup.

To adjust string height

1. Use a 1.5 mm hexagon key, adjust a height of the 1st string to be 2 mm  above the 14th fret by turning two

hexagon socket screws at the 1st  saddle in the bridge.

2. Adjust  height of other strings by the same way.

To adjust octave pitch

1. Use a guitar tuning meter, tune the 1st string at open string to the standard pitch.
2. Use a guitar tuning meter, compare pitch of two tones, a tone at  the 12th fret with a harmonic*.
3. If pitch of the tone at the 12th fret is sharper over 3 cents than pitch of the harmonic tone, turn the adjustment

screw clockwise.

4. If pitch of the tone at the 12th fret is flatter over 3 cents than pitch of the harmonic tone, turn the adjustment

screw  counterclockwise.

5. Repeat steps 1 to 4 until the differnce of pitch between two tones is within 3 cents.
6. Adjust octave pitch of other strings.

Harmonic: An overtone produced by touching a string  above the 12th fret with a finger and by picking the

string just before freeing the string.

Items to be tuned

Replaced Part

Warp of  neck

Neck

Pickup height

Pickup

String height

Bridge

Octave pitch

Bridge

Содержание EG-5

Страница 1: ...ELECTRIC GUITAR EG 5 without price...

Страница 2: ...ltage 0 25 V RMS Maximum Phones Jack Stereo mini jack output impedance 4 5 ohms output voltage 0 50 V RMS Maximum AC Adaptor Jack DC 9 V Power source DC 6 AA size dry batteries Battery life Approx two...

Страница 3: ...Head Head Amp TA8142AP IC41 Mute T45 T46 Mute T43 T44 Mixer R IC42 Mixer L IC42 Line IN Line IN Amp HOT1 HOT2 Filter Distortion Volume VR51 Bias Circuit Leaf Switch Motor Cassette Mechanism REC Switch...

Страница 4: ...IC21 Power Amp LA4127 IC13 Mute T23 Phone Output Guitar Output Speaker Power Supply Circuit D22 T24 Power Switch S21 VC 9 V VCC 9 V DC IN 9V Amp Amp Clipper Band Pass Filter IC51 VR51 Distortion Volum...

Страница 5: ...on JCM370 MA4M PCB 3 Remove three screws on JCM370 MA2M PCB and four screws on JCM370 MA4M PCB 4 Remove all buttons from the cassette mechanism 5 Remove the four screws holding the cassette mechanism...

Страница 6: ...wo screws at both ends of the pickup To adjust string height 1 Use a 1 5 mm hexagon key adjust a height of the 1st string to be 2 mm above the 14th fret by turning two hexagon socket screws at the 1st...

Страница 7: ...notch which can be seen when opening the cassette door 1 Connect a oscilloscope to the dummy loads 2 Set a tape MTT 113N holding the door open and playback the tape 3 By turning the adjustment screw...

Страница 8: ...amplitude of the signal Distortion Circuit The distortion circuit adds a distortion effect to the original signal from the pickup The circuit cuts off peak of the waveform it also produces a sound sig...

Страница 9: ...JB 5 JB 4 JB 3 JB 2 JB 1 MVC AG VCC MIXOUT PG JC 5 JC 4 JC 3 JC 2 JC 1 JC 5 JC 4 JC 3 JC 2 JC 1 VC MVC A PG SVC B JF 6 JF 5 JF 4 JF 3 JF 2 JF 1 JF 6 JF 5 JF 4 JF 3 JF 2 JF 1 A B PV BL PV W PV BL PV W...

Страница 10: ...10 SCHEMATIC DIAGRAMS AMP PCB JCM370 MA1M...

Страница 11: ...11 I O PCB JCM370 MA2M MA3M...

Страница 12: ...12 CASSETTE PCB JCM370 MA4M...

Страница 13: ...13 CONSOLE PCB JCM370 CN1M...

Страница 14: ...0 S 6 S 1 1 JB JC S 4 22 2 S 4 JA S 4 S 8 S 7 22 3 S 9 S 8 22 1 S 9 S 7 S 8 22 S 2 2 3 S 4 S 8 S 2 S 3 JF 1 PH S 11 7 19 13 14 15 16 17 18 9 24 25 JD S 1 S 4 10 1 PV S 2 S 2 6 12 11 20 1 20 21 25 24 8...

Страница 15: ...re subject to change with out prior notice 2 As for spare parts order and supply refer to the GUIDEBOOK for Spare parts Supply published seperately 3 The numbers in item column correspond to the same...

Страница 16: ...08000 1 C JC 3719 4375 Ribbon Cable M370C DF5H05215 80008000 1 C JF 3719 4389 Ribbon Cable M370F DF5H06075 8000M 1 C PV 3749 4382 Ribbon Cable M370H DF0H02120 80258025 1 C PCB ASS Y M370 MA4M N 2 6922...

Страница 17: ...6922 9530 C Button REC M211805 1 1 C N 14 6922 9540 C Button PLAY M211805 2 1 C N 15 6922 9550 C Button REW M211805 3 1 C N 16 6922 9560 C Button FWD M211805 4 1 C N 17 6922 9570 C BUtton STOP M211805...

Страница 18: ...o Parts Name Specification Q N R Yen R Unit Price N 1015 0007 Demo Tape SO 91 1 B N 3613 1393 Hexagon Key 4mm 4X70X25 1 B 6913 5900 Hexagon Key 1 5mm M410113 1 1 B Notes N New parts M Minimum order su...

Страница 19: ...8 11 10 Nishi Shinjuku Shinjuku ku Tokyo 160 Japan Telephone 03 3347 4926 Sep 1995...

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