Suzuki Musical Instrument Corp. Hammond 44 User manual

SERVICE MANUAL
SUZUKI MUSICAL INST.MFG.CO.,LTD.
2-25-12, RYOKE, NAKAKU, HAMAMATSU, JAPAN
DEC.2008
HAMMOND 44
PRO-44H

1
2-1,2-2
3-1~3-3
4
5
6-1~6-4
1.SPECIFICATIONS
2.INSPECTION SPCIFICATION
3.DISASSEMBLY PROCEDURE
4.WIRING CONNECTION
5.SCHEMATICS
VRS-38A
6.PARTS LIST
-1-
PRO-44H
-Table of Contents-
1.SPECIFICATIONS
Keyboard
Reeds
Reed plates
1/4 inch output jack
Microphone
Control
Dimensions
Weight
Accessories









c~g3, Alto 44keys
Phosphor bronze tapered reeds
Brass
Standard 1/4"
Internal dynamic lavalier
Volume
563mm(W)x106mm(D)x52mm(H) (22.17"x 4.17"x 2.05")
1200g(2.65lb)
Special short mouthpiece MP-141, Flexible mouthpiece,
Mouthpiece with tube and L-shaped joint,
Cleaning cloth, Soft case

2.INSPECTION SPECIFICATION
0. Required Equipment
0-1 Mixer and Headphone (You need a equipment which you can listen to the
microphone sound with a headphone)
or
Amplifier (which produces the bigger sound than live sound, and also the
microphone level is available)
1. Sound Inspection
1-1 Insert a mouthpiece into Hammond 44.
1-2 Insert the plug into Hammond 44’s jack output and connect to the above equipment
(0-1) at input terminal.
1-3 Turn Hammond 44’s volume to max.
1-4 Blow kind of strongly without pressing any key and make sure there is no air
leakage.
1-5 Check each key from bass to treble with kind of strong and stable blow.
Is there hollow sound?
Is there strange sound?
Check if the volume is too small by each key, or if overtone is unstable by each key.
2. Key sound Inspection
2-1 Hold a mouthpiece in your mouth without blowing, and press each key from bass
to treble. Check if there is any unexpected sound or clang.
3. Reed Inspection
3-1 Hold blowing kind of strongly and fillip strongly each key from bass to treble.
Check if there is any clink besides overtone.
3-2 In case you find a wrong key, check that key and next key alternately with blowing
gently. If there is no clink besides overtone, it is OK.
4. Tuning Inspection
4-1 Play in octave unison from bass to treble, and check if undulation is not too fast.
2-1

5. Blowing Inspection
5-1 Check the lowest CEG chord in low volume and see if there is any fluttering sound.
Check other chord DFA, EGB … to BDF in the same way. In case you find
a wrong key, check again after blowing strongly without sound.
5-2 Check if overtone sounds equally overall.
5-3 Play around and see if there is any discomfort.
2-2

PRO-44H
Unscrew 6 cover screws.(Screw : M3x8, Ni)
1.REMOVE THE COVER ASS'Y :
2.REMOVE THE AIR BOX:
3-1
3.DISASSEMBLING PROCEDURE
Unscrew 5 air box screws.(screw : M3x15, BsNi)
Press the spit-valve and hold open. Pull out the air box upward.
3.DISASSEMBLE EACH READ PLATE
Unscrew reed plate screws.(screw : Tapping screw, round, 2.3x6.5, BsNi)
1 2 3 4
1
2
3
4
Top high notes : 10 screws
High notes : 18 screws
Middle notes : 18 screws
Bass notes : 8 screws
Joint parts are fixed together by 2 screws.
(2 plates share 2 screws)

Unscrew this screw (small, truss screw, M3x16) and remove a
washer and strap pin.
4.REMOVE TREBLE SIDE COVER
Unscrew 3 screws (Tapping screw, round, 2.3x6.5, BsNi).
Remove a jack volume Assy's connector.
To prevent the cable cut off, please hold the connector's base.
3-2
PRO-44H
5.REMOVE THE DYNAMIC MIKE UNIT:
6.REMOVE THE JACK VOLUME ASS'Y:
Remove a hexagonal jack volume ass'ys nut ( A , M9).
Pull out a volume knob B . Remove the hexagonal nut C .
Pull out an earth, then take the jack volume ass'y out from
the side cover.
A
B
D
C

4.WIRING CONNECTION
PRO-44H
-4-
(JACK VOLUME ASS'Y)
Solder to VRS-38 LAND
red : S
black : G
green : FG
(mark is on the silk side)
FG
G
S
VRS-38A Ass'y
E01CO1-1
MJ-159M RoHS
Solder to MJ-159M
red cable : chip side
black cable : ring side
Jumper cable
UL1007 #20 red
L=35
Ring side
Chip side Jumper cable
UL1007 #20 green
L=45
Jumper cable
UL1007 #20 black
L=60
Front side
Back side
Solder to
E01C0-1 flat side

6.PARTS LIST
6-1
PRO-44H
1.FAINAL ASS'Y(10051-01101)
10051-02101
00290-00039
00290-00040
00290-00041
00290-00042
10051-02102
Middle plate ass'y
High plate ass'y
Top high plate ass'y
Air box ass'y
Keyboard ass'y
Bass plate ass'y
2
1
3
4
5
6
10051-02103
Bass side cover ass'y
7
10051-02104
Treble side cover ass'y
8
10051-02105
00343-01010
00453-00058
00620-02301
00709-23015
Sheet packing
Tapping screw type2(Round head, 2.3x6.5, BsNi)
Machine screw(Oval head M3x15, BsNi)
Cover ass'y
Strap pin(Shoulder strap pin, black)
10
9
11
12
13
01703-63016Machine screw(Truss, M3x16,Trivalent black)
14
00700-03006Machine screw(Super thin, flat screw, M3x8, Ni)
15
01753-33000Washer Ø3, Trivalent black
16
2143658710 911 12
## ###cdef gab## ###cdef gab## ###cdef gab ## #cdef g
13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44
11111112222 22233333
1
15
10
9
7
6 13
11 1254
3
2
8
14
16

6-2
2.KEYBOARD ASS'Y(10051-02101)
PRO-44H
00452-00017
00290-00014
00452-00031
00453-00059
00453-00061
00453-00062
Air lid 1
Keyboard cushion
Rear rim
Valve packing
Body
Keyboard set 14
2
1
3
4
5
6
11
A
A
000001
00451-00100
00451-00150
01724-63000
00453-00049
00412-13018
Square nut(Trivalent white)
Key cushion
White Label
Coil spring
Insert nut
8
7
9
10
11
- Keyboard set 14 -
1.White key C
2.White key D
3.White key E
4.White key F
5.White key G
6.White key A
7.White key B
8.White key RG
9.Black key
00452-00259
00452-00260
00452-00261
00452-00255
00452-00256
00452-00257
00452-00258
00452-00279
00452-00263
2
5
710
6
4
3
8
1
9
9
A - A
Cross-sectional drawing

6-3
PRO-44H
00452-00110
00453-00063
00452-00032Air lid 2
Air box
Air box packing C
2
1
3
00451-00172Cup
4
00453-00070Rubber Rubber 1
5
00453-00057Rubber Rubber 2
6
3.AIR BOX ASS'Y(10051-02102)
4.BASS SIDE COVER ASS'Y(10051-02103)
00452-00086
00453-40116
01724-63000Square nut(M3, Trivalent white)
Bass side cover
SW urethan stopper
2
1
3
5.TREBLE SIDE COVER ASS'Y(10051-02104)
00452-00087
00453-40116
00453-00064Tripod fixing rubber for mike
00315-15007Dynamic mike unit
Treble side cover
SW urethan stopper
2
1
3
00453-00321Volume knob
4
00453-00065Nonwoven cloth
5
00452-00324Spit-valve
6
00453-00066Spit-valve packing
7
00451-00100Coil spring
8
00451-00180Spit-valve shaft
9
00620-02301Tapping screw type 2
(Round head, 2.3x6.5, BsNi)
10
01724-63000Square nut(M3,Trivalent white)
11
10051-02106Jack volume Ass'y
12
00318-04122Jack MJ-159M-RoHS
13
00335-02016EC1C01-1
14
00358-30064Volume RK097111050R
15
1
3
2
6
4
5
3
1
2
2
10
12
6
4
3
5
13
11
3
1
8
7
9
13
14
12
(These 2 parts are sold in sets. Please order by the set.
You will receive an assembled parts.)

6-4
PRO-44H
1
1
6.FLEXIBLE MOUTHPIECE ASS'Y(00290-00084)
7.MOUTHPIECE WITH TUBE AND L-SHAPED JOINT(00290-00092)
00453-00032O-ring
1
00453-00032O-ring
1
00290-00092
00290-00084
00290-00083Short mouthpiece
Mouthpiece with tube and L-shaped joint
Flexible mouthpiece
2
1
3
00453-00072Soft case PRO-44H
4
00457-00010Manual
5
00453-00045Cleaning cloth
6
8.ACCESSORIES
2
1
5
6
4
3
PRO-44H
Owner'smanual
Wearev
eryp
leasedt
oi
ntroducey
ouo
ur
HAMMOND44.
Foryoursafetyandlongtermuseofthe
HAMMOND 44,pleasereadandfollowthis
instructionmanual.Thankyouforyourpurchase.

7.HOW TO ADJUST THE REED
1.Required JIG to adjust reeds
We recommend the following toolset.
Product name : Harmonica repairing tool set (Code : 11790)
Contents : spatula for reed, screw driver (+), edge file (kishage)
2.How to adjust the reed
1.Follow "Disassembling procedure". Remove the cover ass'y and the air box.
2.Adjust reed as follows.(Please do not file too much. It will make the reed lIfe shorter.)
How to tune up After you finish tuning, file down all burr from both side of reed.
Place a spatula under the reed. * To prevent a fluttering sound, stop a reed hitting a plate by sanding all burr.
File a reed lightly from the edge to 3-5mm upward with an edge file.
Check the tune with a tuner each time after you file 3-4 times and adjust to the right tune. File down all burr from both side of reed.
(Any burr on the side and edge has to filed down after tuning.) (closeup picture)
(closeup picture)
edge file(kishage) spatula for reed
How to tune down File down all burr from the edge.
Insert a spatula under the reed up to 2/3 ahead from the edge. (Do not push the spatula too hard.) (closeup picture)
File a reed lightly from the base to 3-5mm downward with a edge file.
Check the tune with a tuner each time after you file 3-4 times and adjust to the right tune.
(Any burr on the side and edge has to be filed down after tuning.)
(closeup picture)
3.Assemble the air box and check the sound by a tuner.
4.Repeat procedure 2 and 3 until you adjust rightly.
5.Assemble the cover via backward process of procedure 1.
7