Roland HP 2700 Operating and maintenance manual

Dec. 1990 HP-3700/2700
HP 3700/2700
Roland Digital Piano
SPECIFICATIONS/ttfll
HP-2700 HP-3700
Keyboard 88Keys. Ato C
Voices 32 Voices Maximum
Sound Source Advanced SA Process
Preset Tones 6(Piano 1. Piano 2. Honky Tonk.
Harpsichord. Vibraphone. Electric Piano )
Effects 3(Chorus. Tremolo. Reverb )
Temperament 6(Equal. Pythagorean. Just. Mean tone.
Werckmeister. Kirnberger)
Touch Control Light. Medium. Heavy
Stretched Tune Normal. Middle. Wide
Master Tuning ±50 cent
Pedals 3(Damper. Soft. Sostenuto )
Input Level +3dBm (Rated. IkHz sine wave in)
Output Level 0dBm (Volume :max. Brilliance :center.
8keys on. Velocity ;7F. Tone ;Piano 1)
Output Power 20W X230W X2
Speakers 16cm X220cm X2. 5cm x4
Power Consumption
55W (lOOV)
SOW (117V)
145W (220/ 240V)
70W (100V)
105W (117V)
21 OW (220/ 240V)
SERVICE NOTES
First Edition
HP-2700 HP-3700
Dimensions
(Wx Dx H)
Main Unit (HP-2700) :
1422 X499.5 x204mm
(56' X19 11/16'
x8 1/16' )
Stand (KS-2700) :
1428 X455 X640mm
(56 1/4' x17 15/16'
x25 3/16' )
Total :
1428 X499.5 x834mm
(56 1/4' X19 11/16'
x32 13/16' )
Main Unit (HP-3700) :
1441 X554 x241mm
(56 3/4' x21 13/16'
X91/2' )
Stand (K53700) :
1435 X503 X837mm
(56 1/2' X19 13/16'
x32 15/16' )
Total :
1441 X554 x859mm
(56 3/4' x21 13/16'
x33 13/16' )
Weight
Main Unit :49kg/ 1081b.
Stand :15kg/ 331b. 102.
Total :64kg/ 141 lb. loz.
Main Unit :59kg /1301b. 1oz.
Stand :23.5kg/ 511b. 13oz.
Total :82.5kg/ 181 lb. 14oz.
Accessories
(Standard)
AC Cord (detachable)
100V 1343981 6F0
117V 1343981 2F0
220V 1343981 3F0
240VE -23495110
240VA ••• 1343981 4F0
Music Rest ••• 22195649 Music Rest ••• 22195651 |
Owner's Manual Set (Japanese) —26035939
Owner’s Manual Set (English) —26035940
Owrwr's Manual Set includes the Template (22665174).
Accessories
(Optional)
Stand KS-2700 Stand K53700
Chair (W-7B. W-7BK. W-6BK)
Head Phones (RH-100. RH-12)
CONTENTS/ g'X
•SPECIFICATIONS 1
•HP-2700 GENERAL VIEW 1
•HP-3700 GENERAL VIEW 2
•PANEL 2
•BLOCK DIAGRAM 3
•HP-2700 EXPLODED VIEW 4
•HP-3700 EXPLODED VIEW 5
•HP-2700 PARTS LIST 6-7
•HP-3700 PARTS LIST 8-9
•MAIN BOARD ASSEMBLY 10
•MAIN BOARD CIRCUIT DIAGRAM 11
•JACK BOARD CIRCUIT DIAGRAM 12
•PHONES BOARD CIRCUIT DIAGRAM 12
•JACK BOARD ASSEMBLY 13
•SWITCH BOARD CIRCUIT DIAGRAM 14
•SWITCH BOARD ASSEMBLY 15
•PHONES BOARD ASSEMBLY 16
•AMP/PS BOARD ASSEMBLY 16
•DIN BOARD ASSEMBLY 16
•HP-2700 AMP/PS BOARD CIRCUIT DIAGRAM 16
•HP-3700 AMP/PS BOARD CIRCUIT DIAGRAM 17
•DIN BOARD CIRCUIT DIAGRAM 17
•KEYBOARD
SK-688-N PARTS LIST (HP-2700) 18
SK-688-P PARTS LIST (HP-3700) 18
SK-6 Rubber Switch Sheet 19
SK-6 KEY REMOVAL LEVER 19
SUBSTITUTIVE LEVER 19
SK-6 KEY REMOVAL 20
SK-6 KEY REASSEMBLY 20
Hints On Key Mounting 20
•KEYBOARD CIRCUIT DIAGRAM 21
•KEYBOARD PCB 21
•STAND KS-2700 ASSEMBLY 22
•STAND KS-3700 ASSEMBLY 23
•PEDAL UNIT ASSEMBLY 24
•KS-2700 PEDAL BOARD ASSEMBLY 25
•KS-3700 PEDAL BOARD ASSEMBLY 25
.CONNECTION CABLE for PEDAL UNIT 26
.SENSOR BOARD for CONNECTION CABLE 26
•ADJUSTMENT OF SENSOR BOARD 26
•STAND KS-2700 PARTS LIST 27
•STAND KS-3700 PARTS LIST 27
•TEST MODE 28. 29
•ADJUSTMENT 30
•TROUBLESHOOTING PROCEDURE 31
•REPAIRING TECHNIQUES
Note when servicing the Interior of the HP 32
How to replace the Music Rack Holder 32
Precautions when exchanging the Music Rack 32
How to adjust the left/right balance of the keyboard lid 33
The matter that demand special attention to assemble the stand KS-3700 33
•CHANGE INFORMATION
To attach trans cover 34
Trans cover change 34
MAIN Board change 35
•1C DATA 36. 37
HP-2700 GENERAL VIEW/ffitSU
No. Part Name and Description Part No.
Side Panel L21125473
Lid Blind 22025502
Music Rack Holder 22205452
Music Stopper 22135428
Front Panel 22215693
©Music Rack 22195649
Top Panel 21115262
Side Panel R21125474
Blind 22235327
Bottom Board 21135237
Key Felt 22265520
Keyboard SK-688-N 7624220000
Stand KS-2700 t**tt*t*
|]^ Roland Printed in Japan AI-2 (DP) 1Copyright §) 1991 by ROLAND CORPORATION

HP-3700/2700 Dec. 1990
No. Part Name and Description Part No.
®End Block L21165137
®Side Panel Lower L21125478
@Side Panel Upper L21125476
@Top Board 21115264
®Music Rack Holder 22205463
®Music Stopper 22135441
@Music Rack 22195651
®Front Panel 22215697
®Side Panel Upper R21125477
End Block R21165138
Side Panel Lower R21125479
Blind Ass’y 22235328
Bottom Board 21135239
Key Felt 22265519
Keyboard SK-688-P 7624320000
Stand KS-3700
HP-3700 GENERAL VIEW/^H^
PANEL/
<Top View >
m[=I
PIMO \PIANO 2>0|KT E.PlAtO
r°n r°n r°~i r°n r°~i
OCHUB nCMLO
CZD CZD
“WB :sii“
CZD CZD USD
»AUJi OBC
7A
CZD CZD CD
Slide Knob
(22485192)
VR Escutcheon
(22225348)
Slide VR
EWANP5X10814
(13339476)
Button (black)
A/Keytop D2P BLK
(22495224)
LED
SLH-34VC3F
(15029289)
Tact Switch
SKHVBD 100G
(13169697)
Button (black)
A/Keytop DIP BLK
(22495223)
LED
SLH-34VC3F
(15029289)
Tact Switch
SKHVBD 100G
(13169697)
[-NOTE
All LED are SLH-34VC3F (15029289).
All Tact Switch are SKHVBD 100G (13169697).
Button (black) are A/Keytop D 2P BLK (22495224)
except for “HALL” and “DEMO”.
Button (black) for “HALL” and “DEMO” are A/Keytop
DIP BLK (22495223).
LED^i^T^ SLH-34VC3F (15029289) Xto
h•XT SKHVBD lOOG (13169697) Xto
THALLJ tTDEMOJ >(M) it. A/Keytop D2P
BLK (22495224) Xto
THALLJ tTDEMOJ >(M) it. A/Keytop DIP
BLK (22495223) Xto
(13429718)
PA-126 2P (11 7/ 240V)
(13429710)
2

Dec. 1990 HP-3700/2700
3

HP-3700/2700
HP-2700 EXPLODED VIEW/iJ^fiill
OHOW TO OPEN TOP PANEL/
h
Before open top panel, it is necessary to open the lid board.CSee Fig.1.)
(LID BOARD) HST"}f LiX^/•ctl:^IC LTTSl'o (Fig.1 #^)
Dec. 1990
4

Dec. 1990 HP-3700/2700
HP-3700 EXPLODED VIEW/^J-fUS
When you open HP-3700’s TOP BOARD to repair, you need two “HP-3700 STAY (repair tooI)”s to hold the board.
If you use two straight bars insteas of the HP-3700 stays, It may be dangerous because the bars may come off from the
board easily. So we recommend you to use this “HP-3700 STAY (repair tool)”.
It Is safety to use stays to both right and left sides respectively. When you change the location of the holes for the stays.
You can change the board position slightely.
When ordering, please use the following name and part code.
(Use **pcs. Do not use **sets when ordering.)
HP-3700 STAY (Repair tool) •Parts code :22145139
OHOW TO OPEN TOP BOARD/ h':/y •tK-
Board removable screws.
®:4X30 mm Truss Head MACHINE
FeBC X1
1
CAUTION
Music Stopper
(22135441)
Music Rack Holder
(22205463)
I
HP-3700 rHP-3700fflXx-;SMJ
K®@!^
TSE®«iKF.
HP-3700 fflX 7^ -;gj (22145139)
Before open the board, it is necesssary to open the lid
board. (See Fig.3)
h(LID BOARD) -#
(EI3#M)
HP-3700 STAY (Repair tool)
HP-3700
30 IC1
@:4X30 mm Truss Head MACHINE FeBC
:4x12 mm Truss Head Tapping A1 FeCm
©:4X15 mm Truss Head MACHINE FeCm
@:3X6mm Binding Head Tap-tight Btype FeCm ^
®:4X25 mm Truss Head MACHINE FeBC
®:4x30 mm Truss Head Tapping A1 FeCm
@:4X20 mm Truss Head Tapping A1 FeCm Q*
©:4x 10 mm Binding Head Tap-tight Btype FeCm
©:3X10 mm Binding Head Tapping A1 FeCm
©:3X20 mm Binding Head Tap-tight Btype FeCm
®;3X8mm Binding Head Tap-tight Btype FeCm
HP-3700 Shield Cover
(22025509) ^@
m
Center Holder
(22205456)
4X30 mm
Truss Head MACHINE FeBC
End Block LLid Board
(21165137) J22585302)
Top Board
(21115264) mmmm
Side Panel Upper L-
(21125476)
Side Panel Lower L^
(21125478)
Side Plate
(22055126)^^^^
Stay (for repair)^
(22145139)
Stay Installation
Side Cover ^
(22025887)
Air DampeiN
’(22235514)
End I
Block R>
(21165138)L
Lid Rail J
(22185402)1
Side Panel Upper R
(21125477)
I
Side Panel
ILower R
I(21125479)
W/!U--
Side Plate R
(22055127)
When fastening the stays in place, if you have inserted the
upper end in hole (T), be sure to insert the lower end in
hole ®as well.
If you have inserted the upper end in hole (5). be sure to
insert the lower end in hole @as well.
ojticAnrTSt'o
±fflii©(2)®/ticAnfcii^tt. Tfflt)(2)07t;(cAnTT
$t'o

HP-3700/2700 Dec. 1990
HP-2700 PARTS LIST/zn”-';/ UXh
,SAFETYPRECAUTIONS:
IThe parts markedAhave
\safety-related characteristics.
Use only listedparts for
replacement.
9^±<D^m :
Tfo
C^d: ^(C
IUTT^l'o
ICONSIDERATIONS ON^RTS ORDERING |
When ordering anyparts listed in the parts list, please specify the following items in the order sheet.
QTY PART NUMBER DESCRIPTION MODEL NUMBER
10 2257S241 Sharp Key C-20/50
IS 2247017300 Knob iorange) DAC-15D
Failure to completely fill the above items with correct numberand description will result in delayed or
even undelivered replacement.
III
7i— ^^rTE(D4JfigW:iE^i(CEALTT^l^o |
n-vi-yn- a«gfflwa
Im) 10 22575241 Sharp Key C-20/50
I15 2247017300 Knob (orange) DAC-150
tzUEAHtl. I
NOTE :MB is MAIN BOARD ASSY.
SB is SWITCH BOARD ASSY.
PHB is PHONES BOARD ASSY.
DB is DIN BOARD ASSY.
JB is JACK BOARD ASSY.
APB is AMP/ PS BOARD ASSY.
SPEAKER
22415573 PD16209C-N Speaker
KEYBOARD
7624220000 SK-688-N 88keys
NOTE
a:Refer to the page of KEYBOARD SK-688-N (P.18~21) for details.
:SK-688-N IcMf (P.18-21) LTT^l'o
PCB ASSY
[e] 7624291001
7624212001
7624209001
7624211000
7624218000
MAIN BOARD ASS’Y
SWITCH BOARD ASS’Y
PHONES BOARD ASS’Y
DIN BOARD ASS’Y
JACK BOARD ASS’Y
(pcb 2292586901)
(pcb 2292587101)
(pcb 2292587201 2/4)
(pcb 2292587201 4/4)
(pcb 2292587302)
7624208400 AMP/PS BOARD ASS'Y 220V/240V (pcb 2292587201 1/4)
NOTE :Replacement AMP/PS BOARD ASS’Y includes the following parts.
^:mmioryzrmmmmz.it.
tkUUkk SMALL BOARD ASS’Y (pcb 2292587201 3/4)
22205457 Heat Sink Holder L
22205458 Heat Sink Holder R
22465186 Heat Sink
CASING 'T-T.
22215693 Front Panel
21115262 Top Panel
22215692 Rear Panel
21125473 Side Panel L
21125474 Side Panel R
22055123 Side Plate L
22055124 Side Plate R
21135237 Bottom Board
22235327 Blind
22205453 Center Holder
22275303 Net (Speaker Cover Net)
22205452 MR Holder (Music Rack Holder)
22135428 Music Stopper
22325141 Hinge A
22585301 Lid Board
22025502 Lid Blind
22335335 Lid Blind Cap L
22335336 Lid Blind Cap R
22145374 Lid Shaft
22185402 Lid Rail
22175633 Lid Gear
*t****** Lid Rail Stopper
22145135 Shaft Stay L
22145136 Shaft Stay R
22055125 Din Plate
22225348 VR Escutcheon
12359105 Rubber Foot G-7 w/ washer
CHASSIS Vr—•>
22195862 Switch Holder
22205457 HEATSINK Holder L
22205458 HEATSINK Holder R
22205308 PHONES Holder
22195973 AMP Holder
22195975 Power TR Holder
22025508 Shield Cover
22025510 Trans Cover
22245194 SVR Cover
KNOB, BUTTON ^>
22495576 Button Power
22485151 Knob Tune
22495223 A/Keytop DIP BLK
22495224 A/Keytop D2P BLK
22485192 Slide Knob VOLUME. BRILLIANCE
SWITCH
13169697 SKHVBD lOOG Tact Switch SW1-SW16 on SB
13159137 SSSS21067A (or SSS-212A) Slide Switch SWl on MB
A13 129 124 SDDGA3078A (or SDGA-3P) Power Switch
JACK,SOCKET 'J ^
.
V<T yh
13429659 TCS4651-0M151 DIN Socket MIDI IN
13429660 TCS5083-01-4151 DIN Socket MIDI OUT.THRU
13449146 YKB21-5012 1/4” Mono Phone Jack INPUT R.OUTPUT L.R
13449252 YKB21-5006 1/4” Stereo Phone Jack INPUT L.PHONES
13429648 YKF51-5001 DIN socket 8P JKl on DB
NOTE :Replacement AMP/PS BOARD is 220V/ 240V version only.
When existing BOARD is 100V/117V version, note the following.
Differences between voltage versions are fuse rate and fuse labels.
When fuses and labels of specific voltage (100V/117V) are required, order separately, referring
to Table-A below.
When using replacement PCB on alOOV or 117V version, be sure to change mark on PCB as shown
in Fig-A.
^:mmr^zrmmmmt. 22o/24ovmi}mMmmtitiro
ta.-X-yKjKD^X'to
100/117VfflcDti-A\ (Table-A #M)
100/117Vffl<Dti-A\ ^7^^. Fig-A®ch 9LT
Table.A
1C H«(sllg
15199715 HD6435328F10 (Flat) Mask CPU IC24 on MB
15199714 HD6475328FP ZTAT (Flat) OTP CPU IC24 on MB
15239146 MB87731 (Flat) PCM Custom IC IC26 on MB
15209225 HN62304BP A(DIP) Wave ROM -AIC28 on MB
15209226 HN62304BP B(DIP) Wave ROM -BIC29 on MB
15209227 HN62304BP C(DIP) Wave ROM -CIC30 on MB
15239143 TC23SC140AF-008 (Flat) Effect Custom IC IC5.9 on MB
15239124 SSCIOOO (Flat) Gate Array (key scan.) IC23 on MB
15209240 LH5308 (DIP) MASK ROM (program) IC16 on MB
or 15209233 /zPD27C1001D-15 (or AT27C512-15DC)
(DIP) EP-ROM (program) IC16 on MB
15179911 AZPD27C1001D-15 (DIP) EP-ROM (blank) IC16 on MB
15179362H0 HM50464P-12 (DIP) DRAM ICl,2.7,8 on MB
15279507 SRM2264M-12 (Flat) SRAM IC21 on MB
15209145 TDA1543 (DIP) D/A Converter IC7 on JB
15209122 PCM56P (DIP) D/A Converter IC2 on JB
152597 16T0 TC74HC32F-T2 (Flat) Quad 2-Input OR Gate (HSCMOS) IC18 on MB
15259823T0 TC74HC574F-T2 (Flat) Octal DFUp Flop (HSCMOS) IC15 on MB
15259720T0 TC74HC74F-T2 (Flat) Dual DFlip Flop (HS-CMOS) IC3 on MB
15259706T0 TC74HCU04F-T2 (Flat) Hex Inverters (HS-CMOS) IC6,25,27 on MB
15259809T0 TC74HC393F-T2 (Flat) Dual 4-Bit Binary Counters (HS-CMOS) IC4 on MB
15259884 TC7S08F (Flat) Single 2-Input AND Gate IC18 on MB
15259887 TC7SU04F (Flat) Single Inverter IC17 on MB
15259738T0 TC74HC138F (Flat) 3-to-8 Line Decoder (HS-CMOS) IC19 on MB
15259701T0 TC74HC00F-T2 (Flat) Quad 2-Input NAND Gate (HS-CMOS) IC22 on MB
15219174 NJU201AD (DIP) 4ch SPST Analog Multiplexer (C-MOS) IC4 on JB
15169334X0 SN74LS05N (DIP) Hex Inverters (TTL) ICS on JB
15169550T0 TC74HC138P (DIP) 3-to^ Line Decoder (CMOS) ICl on JB
15289107 M5218FP (Flat) OP AMP ICl 1.12, 13. 14 on MB
15289106 M5238FP (Flat) OP AMP ICIO on MB
15189237 NJM4580DD (DIP) OP AMP IC6 on JB
15189243 NJM2082L (SIP) OP AMP IC8.12 on JB
15219186 M5207L-05 (SIP) OP AMP (VCA) IC15.16.18 on JB
15189235 BA15218N (SIP) OP AMP IC22 on MB
15189242 NJM4565SD (SIP) OP AMP IC9, 10, 13, 14, 17, 19.20,21 on
JB
IC5 on JB
15199170 AN78L05TA -I-5V Voltage Regulator
A15199155 L78MR05R -I-5V Voltage Regulator IC4 on APB
A15199176 L78M12ML -1- 12V Voltage Regulator ICS on APB
A15 199 177 L79M12ML -12V Voltage Regulator IC2 on APB
A15 199545 STK4132-2 Power Amp ICl on APB
HYBRID. NETWORK giiictiliS. h7-^[1]%
13529209 ARCL9X103J470M RC Module RCA2 on MB (SN0.ZB6I8OO -up/i^M)
13529212 ARCL7X103J470M RC Module RCA1.3 on MB (SN0.ZB6I8OO -up/iil|^)
NOTE :Refere to the page of “MAIN BOARD CHANGE INFORMATION” (P.35).
:TMAIN d-'- (DK-i; (P.35)
TRANSISTOR
15119161 DTA114YS Digi-tra Ql.2,3,4 on SB
15129164 DTC114ES-TP Digi-tra Q5,6,7.8 on SB
15129198 DTA124ES-TP Digi-tra Q2 on JB
15119134 2SA933S DC TP RTr Q1 on JB
15139113 2SK363GR FET Q3,4 on JB
15329503 DTA124EK (Chip) Digi-tra Q5 on MB
153295lODO DTC144EK T-96 (Chip) Q1.2.4 on MB
15309101 2SA1037K R(Chip) Q3 on MB
DIODE
15019103 lS-2473 Diode on SB
15019125 lSS-133 Diode D1 -Dll on JB
15339105 DAN202K (Chip) Diode Array D1 on MB
15339108 DA204K (Chip) Diode Array D2 -D5 on MB
15019283 DSF-IO-BT Diode Dl.4.5.8 on APB
A15039139 DSA12TC-KC6 Rectifier D2 on APB
A15019290 DBA40C-K15 Bridge D7 on APB
A15039 107 DBF40C Bridge D3 on APB
RESISTOR
13919117 RGLD 8X333J Resistor Array 33kx8 RA2.4 on MB
13919140 RGLD 8X103J Resistor Array 10kx8 RA5.19 on MB
15399923 MNR34J5A682 (Chip) Resistor Array 6.8kx4 RA3 on MB
15399931 MNR34J5A221 (Chip) Resistor Array 220x4 RA17.18 on MB
15399932 MNR34J5A101 (Chip) Resistor Array 100x4 RA13.14 on MB
15399935 MNR34J5A104 (Chip) Resistor Array 100kx4 RA9 on MB
15399936 MNR34J5A102 (Chip) Resistor Array lkx4 RAl.6,7,8 on MB
15399917
or 15399937 MNR34J5A103E (Chip) Resistor Array 10kx4 RAIO.11,12.15,16 on MB
(SNO.ZB40100 -ZB61799)
NOTE :Refere to the page of “MAIN BOARD CHANGE INFORMATION” (P.35).
^:TMAINd-'- KOlfMJ 0^-v^ (P.35)
6

Dec. 1990 HP-3700/2700
POTENTIOMETER
13339476 EWANP5X10B14 Slide VR 10KB VR1.2 on SB
13279986 RKllKlllO lOkB Rotary VR 10KB VR2 on JB
13299217 RVF6P51-5-104N Trimmer 100KB VRl on JB
CAPACITOR
A13529104 DE7150F472MVA1 Line bypass C47 on APB
13519737 DD10E472P500V Ceramic C25.42 on APB
13639155J0 SME16VB2200 2200uF/16V Electro C40 on APB
13639175S0 25MV2200HW 2200uF /25VElectro C37.38 on APB
13659229 SME35VN6800 6800uF/35V Block C26.28 on APB
INDUCTOR, COIL
12449355 FBR07HA85OTB00 Ferrite Beads on SB,on JB.on MB
12449381 SBT-0460TF CoU on JB,on PHB
FILTER
12449313 K25-J1 13.7KHZ LC Filter FL1,2 on JB
13529194 LC-103N-1RO-TB EMI Filter on MB
13529186 ELKTT150GA Noise Filter on MB
12449323 ESD-R-25SD Data Line Filter
CRYSTAL, RESONATOR
15299131 MA-506 25.408MHz Crystal X3 on MB
15299132 MA-506 20.000MHz Crystal X2 on MB
15299133 MA-506 16.384MHz Crystal XI on MB
OPTICAL DEVICE
15229706S0 PC910 (DIP) Photo-coupler (Opto-isolator) ICll on JB
15029289 SLH-34VC3F (red) LED on SB
15029280 HLMP-1301-010 (red) LED D1 on PHB
FUSE,FUSE HOLDER ba-Xba
A12559398 TSC 125A-N1 (5x20 withstand-inrush) 100V/117V F5 on APB
A12559405 TSC 5A-N1 (5x20 withstand-inrush) 100V/117V F1,F2 on APB
A12559431 SD6 2A-N1 (5x20 slow-blow) 100V/117V F6 on APB
A12559574 CEE-5AT (5x20 wickmann) 220V/ 240V F1,F2 on APB
A12559568 CEE-1.25AT (5x20 wickmann) 220V/240V F5 on APB
A12559571 CEE-2.5AT (5x20 wickmann) 220V/ 240V F6 on APB
CONNECTOR
13369599 52147-0410 (4P) CNIO on MB
13369600 52147-0510 (5P) CN8 on MB
13369601 52147-0610 (6P) CN5 on APB
13369602 52147-0710 (7P) CN9 on MB,CN4 on JB
13369603 52147-0810 (8P) CN12 on MB
13369604 52147-0910 (9P) CNll on MB
13369605 52147-1010 (lOP) CNl on APB.CN5 on JB
13369606 52147-1110 (IIP) CN4 on APB
13369607 52147-1210 (12P) CN7 on MB
13429293 5104&0400 (4P) Cable Holder CN3 on JB
13429294 51048-0500 (5P) Cable Holder CN3 on SB
13429295 51048-0600 (6P) Cable Holder CN2 on SB
13429296 51048-0700 (7P) Cable Holder CNl on PHB
13429297 51048^00 (8P) Cable Holder CNl on JB
13429298 51048-0900 (9P) Cable Holder CN2 on JB
13429300 51048-1100 (HP) Cable Holder CN6 on MB
13429301 51048-1200 (12P) Cable Holder CNl on SB
13439532 53014D810 (8P) Pin Header CN5 on MB
13439534 53014-1010 (lOP) Pin Header CNl on MB
13439536 53014-1210 (12P) Pin Header CN3 on MB
13439372 548304AX (4P) Pin Header CN2 on APB
WIRING, CABLE 7-ZfJi^
23485528 HP-2700 Wiring J1
23485527 HP-2700 Wiring W5
23485592 HP-2700 Wiring W9
TRANSFORMER K7>7
A22455615U0 (or 224556IlUO )
Power Transformer lOOV/ 117V /220V/240V
NOTE :2245561 lUO that Part Number of Power Trans was changed to 22455615U0 from SN ZB51000.
a-lix 22455611U0 22455615U0 1Cx SN ZB51000 tfo
AC INLET AC yly 'y h
A13429718 CM-11 (3P) lOOV/240V
A13429710 PA-126 (2P) 117V/ 220V
BATTERY
12569249 CR2032 Lithium Battery
SCREWS
********
********
********
********
********
********
********
********
********
********
********
********
********
********
********
3x6mm Binding Head Machine FeCm total 8pcs
2for Power Switch &Switch Holder
6for Main Board
4x8mm Truss Head Machine FeBC total 8pcs except 240VE. 240V
A
total 9pcs for 240VE. 240VA
8for Hinge A&Rear Panel
1for Rear Panel &Wiring for 240VE, 240VA
4xl0mm Truss Head Machine FeBC 4pcs for Side Panel &Rear Panel
4xl5mm Truss Head Machine FeCm total 30 pcs
8,for Hinge A&Bottom Board
4for Trans, 2for Blind, 4for AMP/PS Bosurd
2for Keyboard, 8for Shield Cover, 2for Trans Cover
4x20mm Truss Head Machine FeBC 8pcs for Speaker
4x30mm Truss Head Machine FeBC total 19 pcs
10 for Side Panel &Bottom Board
1for Center Holder &Bottom Board
8for Blind &Bottom Board
3x8mm Binding Head Tapping B1 FeBC total 11 pcs
4for Jack Board, 1for DIN Board
2for AC Inlet, 4for Lid Rail
3xl0mm Binding Head Tapping A1 FeCm total 18 pcs
2for Stay, 2for DIN Plate, 6for Holder SKM-1
2for Phones Board, 6for Switch Holder &Bottom Board
3xl2mm Binding Head Tapping A1 FeCm total 12 pcs
8for Lid Blind, 2for Power Switch
2for Side Plate &Side Panel
3x20mm Binding Head Tapping B1 FeCm 6pcs for Lid Rail
3x30mm Binding Head Tapping A1 FeCm 1pc for AMP/PS Board
4x8mm Binding Head Tapping B1 FeCm
10 pcs for Side Plate &Side Panel
4xl2mm Truss Head Tapping A1 FeCm total 8pcs
4for Shaft Stay &Lid Board, 4for Keyboard
4xl6mm Truss Head Tapping A1 FeCm 6pcs for Rear Panel &Top Panel
4x20mm Truss Head Tapping A1 FeCm 8pcs for Side Panel &Top Panel
******** 3x6mm Binding Head Tap-Tight Btype FeCm total 20 pcs
12 for Switch Board, 2for Center Holder
4for Holder SKM-1, 2for Shield Cover
******** 3xl4mm Binding Head Tap-Tight Btype FeCm total 6pcs
4for Side Plate &Front Panel
2for Stay &Front Panel
******** 3x25mm Binding Head Tapping w/ tooth washer total 2pcs
2for Music Rack Holder (MR Holder)
******** M4 Nut w/ spring washer total 1pc for 240VE, 240V
A
1for Wiring &Rear Panel for 240VE, 240VA
******** Nylon Rivet NRP-345 6pcs for Jack Board
******** Holder SKM-1 total 10 pcs
******** Coating Clip CS-6U total 8pcs
******** Insu-lock Tie T18S (75mm) total 19 pcs
******** Insu-lock Tie T18R (100mm) total 8pcs
MISCELLANEOUS
12569420 BATTERY HOLDER (For CR2032)
22265520 Key Felt
22465186 Heat Sink
22675504 Silicon Sheet TY-FR-SGP 0.3T
22675506 Silicon Sheet TF-FR-SGP T0-3P
12159715 Collar Bush TB-300 (Black)
12159714 Collar Bush TA-314
22335338 Inlet Cap
41015122 Fuse Label 5A/ 125V lOOV/ 117V
41015114 Fuse Label 1.25A/ 125V lOOV/ 117V
41015167 Fuse Label 2A/250V lOOV/ 117V
41015223 Fuse Label T5A/250V 220V/ 240V
41015217 Fuse Label T1.25A/250V 220V/240V
41015220 Fuse Label T2.5A/250V 220V/ 240V
ACCESSORIES(STANDARD)
22195649 Music Rack
A13439816F0 DC-357-J01
A13439812F0 UC-704-J01
A13439813F0 EC-210-E06
A23495110 5722-660-4606
A13439814F0 3PSC415-J06
26035939 Owner’s Manual Set (Japanese)
26035940 Owner’s Manual Set (English)
AC CORD (lOOV :detachable/#J!ft^)
AC CORD (117V :detachable/IfJBi^)
AC CORD (220V :detachable/#JKjS:)
AC CORD (240V-E :detachable/*NKiC)
AC CORD (240V-A :detachable/IMft^)
(Common to HP-2700/3700JIP-2700/ 3700 *ii)
(Common to HP-2700/ 3700JIP-2700/ 3700 ^ii)
NOTE :Owner’s Manual Set includes Function Sheet (or Template) (22665174).
(22665174)
ACCESSORIES(OPTIONAL)
******** KS-2700
NOTE :Refer to the page of STAND KS-2700 (P.22~27) for details.
m. :PIttBICoUTll. KS-2700 (P.22-27)
7

HP-3700/2700 Dec. 1990
HP-3700 PARTS LIST//n”-'> UXh
SAFETYPRECAUTIONS:
The parts marked Ahave
safety-related characteristics.
Use only listedparts for
replacement.
:
A/)m^TU58Ba«.
-<To
^iZ
UTT$C>o
ICONSIDERATIONS ON PARTS ORDERING |
When ordering any parts listed in the parts list, please specify the following items in the ordersheet.
QTY PART NUMBER DESCRIPTION MODEL NUMBER
Ex. 10 22575241 Sharp Key C-20/50
IS 2247017300 Knob (orange) DAC-15D
Failure to completely fill the above items with correct numberand description will result in delayed or
even undelivered replacement.
II
i>rTE(D4«Sld:]EfiliaBAUTT$Uo
»i^-vi-yi^- a«
10 22575241 Sharp Key C-20/50
15 2247017300 Knob (aange) DAC-150
t^UCAlin.
NOTE :MB is MAIN BOARD ASSY.
SB is SWITCH BOARD ASSY.
PHB is PHONES BOARD ASSY.
DB is DIN BOARD ASSY.
JB is JACK BOARD ASSY.
APB is AMP/ PS BOARD ASSY.
CASING *T-7.
22215697 Front Panel
211 15264 Top Board
21145703 Rear Board Ass'y
NOTE :Rear Board Ass’y includes Jack Plate (22055128) .
ti :Rear Board Ass’y ICIi. Jack Plate (22055128)
21125476
21125477
21125478
21125479
22055126
22055127
21165137
21165138
21135239
22235328
NOTE
a
Side Panel Upper L
Side Panel Upper R
Side Panel Lower L
Side Panel Lower R
Side Plate L
Side Plate R
End Block L
End Block R
Bottom Board
Blind Ass’y
;Blind Ass’y includes Angle (22125664)
:Blind Ass’y iZli, Angle (22125664)
22205456 Center Holder
22275164 Speaker Net
22275308 TW Net
22205463 MR Holder
22135441 Music Stopper
22325165 Hinge A
22325166 Hinge B
22585302 Lid
22145376 Lid Shaft
22185402 Lid Rail
22175633 Lid Gear
22235514 Air Damper
22145137 Shaft Stay L
22145138 Shaft Stay R
22055125 Din Plate
22225348 VR Escutcheon
(Music Rack Holder)
(Lid Bocu-d)
CHASSIS vi>-v
22175320 KR-33 Spring
22195862 Switch Holder
22205457 HEATSINK Holder L
22205458 HEATSINK Holder R
22205469 PHONES Holder
22195973 AMP Holder
22195975 Power TR Holder
22025509 Shield Cover
22025511 Trans Cover
22245194 SVR Cover
22205455 Tw Holder
KNOB. BUTTON
22495576 Button
22485151 Knob
22495223 A/Keytop DIP BLK
22495224 A/Keytop D2P BLK
22485192 Slide Knob
Power
Tune
VOLUME. BRILLIANCE
SWITCH
13169697 SKHVBD lOOG Tact Switch SWl -SW16 on SB
13159137 SSSS21067A (or SSS-212A) Slide Switch SWl on MB
A13129 124 SDDGA3078A (or SDGA-3P) Power Switch
JACK. SOCKET -Y K'J*T"j V
13429659 TCS4651-0M151 DIN Socket MIDI IN
13429660 TCS5083^M151 DIN Socket MIDI OUT. THRU
13449146 YKB21-5012 1/4" Mono Phone Jack INPUT R. OUTPUT L. R
13449252 YKB21-5006 1/4" Stereo Phone Jack INPUT L. PHONES
13429648 YKF51-5001 DIN 8P JKl on DB
13449252 YKB21-5006 1/4" Phone Jack
SPEAKER
22415427 W20119A-N Speaker (woofer/ —yn—
)
22415574 TW-596A Speaker (Tweeter/
4
KEYBOARD
7624320000 SK-688-P 88keys
NOTE ;:Refer to the page of KEYBOARD SK-688-P (P.18~21) for details.
:»fiSK-688-P (P.18~21)
PCB ASS’Y
[e] 7624291001 MAIN BOARD ASS’Y (pcb 2292586901)
7624312001 SWITCH BOARD ASS’Y (pcb 2292587101)
7624309001 PHONES BOARD ASS’Y (pcb 2292587201 2/4)
7624311000 DIN BOARD ASS’Y (pcb 2292587201 4/4)
7624318000 JACK BOARD ASS’Y (pcb 2292587302)
7624308400 AMP/ PS BOARD ASS’Y 220V/ 240V (pcb 2292587201 1/4)
NOTE :Replacement AMP/PS BOARD includes the following PCB and parts.
m. :
kttkttu** SMALL BOARD ASS’Y (pcb 2292587201 3/4)
22205457 Heat Sink Holder L
22205458 Heat Sink holder R
22465186 Heat Sink
NOTE :Replacement PCB is 220V/ 240V version only.
When existing PCB is 100V/117V version, note the following.
Differences between voltage versions are fuse rate and fuse labels.
When fuses and labels of specific voltage (100V/117V) are required, order separately, referring
to Table.Abelow. When using replacement PCB on 100Vor 117V version, be sure to change mark
on PCB as shown in Fig.A
&:220V/240Vffl;6<^ii(^ffl$ntfo
100V/117Vffl®ti-X> ti-X- (Table.A #BS)
100V/117Vffi®ti-X> bi-X- /::<*: Fig.A cD ,1; ^ L
F1.F2 F3,F4 F5 F6
FUSE TSC 6.3A-N1
(12559374)
TSC 630mA-N1
(12559396)
TSC 1.25A-N1
(12559398)
TSC 6.3A-N1
(12559374)
6.3A/125V
(41015123)
630mA/ 125V
(41015111)
1.25A/125V
(41015114)
6.3A/125V
(41015123)
FUSE CEE-6.3AT
(12559575)
CEE-400mAT
(12559563)
CEE-1 .25AT
(12559568)
CEE-4AT
(12559573)
T6.3A/250V
(41015224)
T400mA/250V
(41015212)
T1.25A/250V
(41015217)
T4A/250V
(41015222)
Table.A
Mivii- no DVJ«ru-^
HP- 2700
i
T
HP- 2700
100/117V ASSY 76242081 00 :100/117V ASSY 76242081 00
L220/240V ASSY 76242084 00 220/240V ASSY 76242084 00
\p -3700 I11HP-3700 [1
1007i17V ASSY 76243081 00 o•100/117V ASSY 76243081 00
m220/240V ASSY 76243084 00 5220/240V ASSY 76243084 00
#:Check Mark
1C tmmui
15199715 HD6435328F10 (Flat) Mask CPU IC24 on MB
15199714 HD6475328FP ZTAT (Flat) OTP CPU IC24 on MB
15239146 MB87731 (Flat) PCM Custom IC IC26 on MB
15209225 HN62304BP A(DIP) Wave ROM -AIC28 on MB
15209226 HN62304BP B(DIP) Wave ROM -BIC29 on MB
15209227 HN62304BP C(DIP) Wave ROM -CIC30 on MB
15239143 TC23SC140AF-008 (Flat) Effect Custom IC IC5, 9on MB
15239124 SSCIOOO (Flat) Gate Array (key scan.) IC23 on MB
15209240 LH5308 (DIP) MASK ROM (program) IC16 on MB
or 15209233 PD27C1001D-15 (or AT27C512-15DC)
(DIP) EP-ROM (program) IC16 on MB
15179911 UPD27C1001D-15 (DIP) EP-ROM (blank) IC16 on MB
15179362H0 HM50464P-12 (DIP) DRAM ICl.2.7,8 on MB
15279507 SRM2264M-12 (Flat) SRAM IC21 on MB
15209145 TDA1543 (DIP) D/A Converter IC7 on JB
15209122 PCM56P (DIP) D/A Converter IC2 on JB
152597 16T0 TC74HC32F-T2 (Flat) Quad 2-Input OR Gate (HS-CMOS) IC18 on MB
15259823T0 TC74HC574F-T2 (Flat) Octal DFUp Flop (HS-CMOS) IC15 on MB
15259720T0 TC74HC74F-T2 (Flat) Dual DFlip Flop (HS-CMOS) IC3 on MB
15259706T0 TC74HCU04F-T2 (Flat) Hex Inverters (HS-CMOS) IC6.25.27 on MB
15259809T0 TC74HC393F-T2 (Flat) Dual 4-Bit Binary Counters (HS-CMOS) IC4 on MB
15259884 TC7S08F (Flat) Single 2-Input AND Gate IC18 on MB
15259887 TC7SU04F (Flat) Single Inverter IC17 on MB
15259738T0 TC74HC138F-T2 (Flat) 3-to8 Line Decoder (HS-CMOS) IC19 on MB
15259701T0 TC74HC00F-T2 (Flat) Quad 2-Input NAND Gate (HS-CMOS) IC22 on MB
15219174 NJU201AD (DIP) 4ch SPST Analog Multiplexer (CMOS) IC4 on JB
15169334X0 SN74LS05N (DIP) Hex Inverters (TTL) IC3 on JB
15169550T0 TC74HC138P (DIP) 3-to8 Line Decoder (CMOS) ICl on JB
15289107 M5218FP (Flat) OP AMP ICl 1.12.13.14 on MB
15289106 M5238FP (Flat) OP AMP ICIO on MB
15189237 NJM4580DD (DIP) OP AMP IC6 on JB
15189243 NJM2082L (SIP) OP AMP ICS, 12 on JB
15219186 M5207L-05 (SIP) OP AMP (VCA) IC15.16.18 on JB
15189235 BA15218N (SIP) OP AMP IC22 on MB
15189242 NJM4565SD (SIP) OP AMP IC9,10,13.14.17.19.20.21,23
on JB
15199170 AN78L05TA -I-5V Voltage Regulator IC5 on JB
A15199155 L78MR05R -1-5V Voltage Regulator IC4 on APB
A15199176 L78M12ML +12V Voltage Regulator ICS on APB
A15199177 L79M12ML -12V Voltage Regulator IC2 on APB
A15199558 STK4152-2 Power Amp ICl on APB
HYBRID. NETWORK ^yF9-9[5]IS
13529209 ARCL9X103J470M RC Module RCA2 on MB (SNo.ZB61450 -up/Jil^)
13529212 ARCL7X103J470M RC Module RCA1.3 on MB (SNo.ZB61450 -up/Jil|^)
NOTE :Refere to the page of ‘‘MAIN BOARD CHANGE INFORMATION" (P.35)
a:TMAIN t'- (0^-i/ (P.35)
TRANSISTOR F^>V^^
15119161 DTA114YS Digi-tra Ql,2,3.4 on SB
15129164 DTC114ES-TP Digi-tra Q5,6.7,8 on SB
15129198 DTA124ES-TP Digi-tra Q2 on JB
15119134 2SA933S DC TP RTr Q1 on JB
15139113 2SK363GR FET Q3,4 on JB
15329503 DTA124EK (Chip) Digi-tra Q5 on MB
15329510D0 DTC144EK T-96 (Chip) Q1,2.4 on MB
15309101 2SA1037K R(Chip) Q3 on MB
DIODE Xd’JT-K
15019103 lS-2473 Diode on SB
15019125 1SS-133T Diode D1 -Dll on JB
15339105 DAN202K (Chip) Diode Array D1 on MB
15339108 DA204K (Chip) Diode Array D2 -D5 on MB
15019283 DSF-IO-BT Diode Dl,4,5,8 on APB
A15039139 DSA12TC-KC6 Rectifier D2 on APB
A15019272 2B4B41 LC2 Bridge D6 on APB
A15019290 DBA40C-K15 Bridge D7 on APB
A15019296 DBF-60C Rectifier D3 on APB
Fig.A
8

Dec. 1990 HP-3700/2700
RESISTOR
13919117 RGLD 8X333J Resistor Array 33Kx8 RA2.4 on MB
13919140 RGLD 8X103J Resistor Array 10Kx8 RA5.19 on MB
15399923 MNR34J5A682E (Chip) Resistor Array 6.8Kx4 RA3 on MB
15399931 MNR34J5A221 (Chip) Resistor Array 220x4 RA17.18 on MB
15399932 MNR34J5A101 (Chip) Resistor Array 100x4 RA13.14 on MB
15399935 MNR34J5A104 (Chip) Resistor Array 100Kx4 RA9 on MB
15399936
15399937
MNR34J5A102 (Chip) Resistor Array lKx4 RAl.6.7,8 on MB
or 15399917 MNR34J5A103 (Chip) Resistor Array 10Kx4 RAIO.11.12.15,16 on MB
(SNO.ZB40100 -ZB61449)
NOTE :Refere to the page of “MAIN BOARD CHANGE INFORMATION" (P.35)
:TMAIN#- (P.35)
POTENTIOMETER
13339476 EWANP5X10B14 SUde VR 10KB VR1.2 on SB
13279986 RKllKlllO 10KB Rotary VR 10KB VR2 on JB
13299217 RVF6P51-5-104N Trimmer 100KB VRl on JB
CAPACITOR
A13529104 DE7150F472MVA1 Line bypass C47 on APB
13519737 DD10E472P500V Ceramic C25.42 on APB
13639295 ECEA50Y6R8 Electro
13639155J0 SME16VB2200 2200uF/ 16V Electro Network C40 on APB
13639175S0 25MV2200HW 2200uF/25V Electro C37.38 on APB
13659229 SME35VN6800 6800uF/35V Block C26,28 on APB
INDUCTOR. COIL
12449355 FBR07HA850TB00 Ferrite Beads on SB,on JB.on MB
12449381 SBT-0460TF Coil on JB.on PHB
RLTER
12449313 K25-J1 13.7KH2 LC Filter FL1.2 on JB
13529194 LC-103N-1RO-TB EMI Filter on MB
13529186 ELKTT150GA Noise Filter on MB
12449374 BP53RH120080130M Data Line Filter
(or Ferrite Core)
12449323 ESD-R-25SD Data Line Filter
CRYSTAL RESONATOR 7.^ /b.
15299131 MA-506 25.408MHz Crystal X3 on MB
15299132 MA-506 20.000MHz Crystal X2 on MB
15299133 MA-506 16.384MHz Crystal XI on MB
OPTICAL DEVICE
15229706S0 PC910 (DIP) Photo-Coupler (Opto-isolator) ICll on JB
15029289 SLH-34VC3F (red) LED on SB
15029280 HLMP-1301-010 (red) LED D1 on PHB
FUSE. FUSE HOLDER ta-X, ba
A12559374 TSC 6.3A-N1 (5x20 withstand-inrush) 100V/117V F1,F2,F6 on APB
A12559396 TSC 630mA-Nl (5x20 withstand-inrush) 100V/117V F3,F4 on APB
A12559398 TSC 1.25A-N1 (5x20 withstand-inrush) 100V/117V F5 on APB
A12559575 CEE-6.3AT (5x20 wickmann) 220V/ 240V F1.F2 on APB
A12559563 CEE-400mAT (5x20 wickmann) 220V/ 240V F3.F4 on APB
A12559568 CEE-125AT (5x20 wickmann) 220V/240V F5 on APB
A12559573 CEE4AT (5x20 wickmann) 220V/ 240V F6 on APB
CONNECTOR
13369599 52147-0410 (4P) CNIO on MB
13369600 52147-0510 (5P) CN8 on MB
13369601 52147-0610 (6P) CN5 on APB
13369602 52147-0710 (7P) CN9 on MB, CN4 on JB,
CNl on PHB
13369603 52147-0810 (8P) CN12 on MB
13369604 52147-0910 (9P) CNll on MB
13369605 52147-1010 (lOP) CNl on APB, CN5 on JB
13369606 52147-1110 (IIP) CN4 on APB
13369607 52147-1210 (12P) CN7 on MB
13429293 51048-0400 (4P) Cable Holder CN3 on JB
13429294 51048-0500 (5P) Cable Holder CN3 on SB
13429295 51048-0600 (6P) Cable Holder CN2 on SB
13429297 51048-0800 (8P) Cable Holder CNl on JB
13429298 51048-0900 (9P) Cable Holder CN2 on JB
13429300 51048-1100 (IIP) Cable Holder CN6 on MB
13429301 51048-1200 (12P) Cable Holder CNl on SB
13439532 53014-0810 (8P) Pin Header CN5 on MB
13439534 53014-1010 (lOP) Pin Header CNl on MB
13439536 53014-1210 (12P) Pin Header CN3 on MB
13439372 548304AX (4P) Pin Header CN2 on APB
13439376 548308AX (8P) Pin Header CN3 on APB
WIRING, CABLE
23485534 HP-3700 Wiring J1
23485533 HP-3700 Wiring W5
23485532 HP-3700 Wiring W4
23485593 HP-3700 Wiring W9
TRANSFORMER
A22455610U0 Power Transformer 100V/117V/220V/240V
AC INLET AC 4’ >1/ •:» h
A13429718 CM-11 (3P) 100V/240V
A13429710 PA-126 (2P) 117V/ 220V
BATTERY
12569249 CR2032 Lithium Battery
SCREWS
ttuut* 3x6mm Binding Head MACHINE FeCm total 8pcs
2for Power Switch &Switch Holder
6for Main Board
tttutt* 4x25mm Truss Head MACHINE FeBC total 16 pcs
6for Blind &Bottom Board
2for Rear Board &Bottom Board, 8for Speaker
4x30mm Truss Head MACHINE FeBC total 17 pcs
8for Side Panel &Bottom Board,
1for Center Holder &Bottom Board
6for Keyboard &Bottom Board
2for Rear Board 8i Side Plate
ttt*$*t* 4x8mm Truss Head MACHINE FeBC
1pc for Rear Board &Wiring for 240VE, 240VA
t*t$u** 4xl5mm Truss Head MACHINE FeCm total 25 pcs
8for Tweeter &Bottom Board, 4for Trans
4for Amp/PS Board, 2for Keyboard
5for Shield Cover, 2for Trans Cover
t**$**** 4xl0mm Binding Head Tapping B1 FeCm
4for End Block &Side Plate
3xl0mm Binding Head Tapping A1 FeCm
2for Power Switch, 2for DIN Plate
total 15 pcs
3for Holder SKM-1, 2for KR-33 Spring
6for Switch Holder
3xl2mm Binding Head Tapping A1 FeCm
8for Air Damper &Lid Board
t**$**t* 3x30mm Binding Head Tapping A1 FeCm
1for AMP/PS Board
tttt**** 4xl2mm Binding Head Tapping A1 FeCm
4for Shaft Stay &Lid Board
tttt**** 3x8mm Binding Head Tapping B1 FeBC
4for Jack Board, 1for DIN Board
2for AC Inlet
total 7pcs
3x6mm Binding Head Tap-tight Btype FeCm total 21 pcs
12 for Switch Board, 2for (^nter Holder
4for Holder SKM-1, 2for Shield Cover
1for SK-6 P.Spring
3xl2mm Binding Head Tap-tight Btia>e FeCm
4for Side Plate &Front Panel
3x6mm Pan Head Tap-tight Ptype FeBC
4for Lid Rail
«««$«*** 3xl6mm Pan Head Tap-tight Ptype FeBC
6for Lid Rail
4xl2mm Truss Head Tapping A1 FeCm
4for Jack Plate &Rear Board
12 for Hinge, 4for Keyboard
2for Shield Cover, 2for Trans Cover
total 24 pcs
4x20mm Truss Head Tapping A1 FeCm
6for Top Board &Side Panel
$t*u*** 4x25mm Truss Head Tapping A1 FeCm
4for Rear Board &Bottom Board
3x6mm Pan Head Tapping B1 FeBC w/ tooth washer
8for Tweeter &Tweeter Holder
t***t**t 3x25mm Pan Head Tapping B1 FeCm w/ tooth washer
2for MR (Music Rack) Holder
M4 Nut FeCm w/spring washer
1for Rear Panel &Wiring for 240VE, 240VA
Nylon Rivet NRP-345
6for Jack Board
Holder SKM-1 total 7pcs
Insu-lock Tie T18S (75mm) total 19 pcs
t$u***t Insu-lock Tie T18R (100mm) total 6pcs
$t**ut* Coating Clip CS-6U total 10 pcs
MISCELLANEOUS
12569420 BATTERY HOLDER (For CR2032)
22265519 Key Felt
22465186 Heat Sink
22675504 Silicon Sheet TY-FR-SGP 0.3T
22675506 Silicon Sheet TF-FR-SGP T0-3P
12159715 Collar Bush TB-300 (Black) —X"j Va. (M)
12159714 Collar Bush TA-314
22175326 SK-6 P.Spring
22335338 Inlet Cap
41015123 Fuse Label 6.3A-125V 100V/117V
41015111 Fuse Label 630mA/ 125A 100V/117V
41015114 Fuse Label 1.25A/ 125V 100V/117V
41015224 Fuse Label T6.3A/250V 220V/ 240V
41015212 Fuse Label T400mA/250V 220V/240V
41015217 Fuse Label T1.25A/250V 220V/ 240V
41015222 Fuse Label T4A/250V 220V/ 240V
ACCESSORIESLSTANDARDJ
22195651 Music Rack
A13439816F0 DC-357-J01 AC CORD (lOOV :detachable/#|ftSC)
A13439812F0 UC-704-J01 AC CORD (117V :detachable/*R^)
A13439813F0 EC-210-E06 AC CORD (220V :detachable/IMttiD
A23495110 5722-6604606 AC CORD (240V-E :detachable/^lftiC)
A13439814F0 3PSC415-J06 AC CORD (240V-A :detachable/»RiO
26035939 Owner’s Manual Set (Japanese) (Common to HP-2700/ 3700JIP-2700/ 3700 *ii)
26035940 Owner’s Manual Set (English) (Common to HP-2700/3700JIP-2700/ 3700 ^ii)
NOTE :Owner’s Manual Set includes !Function Sheet (or Template) (22665174).
(22665174)
ACCESSORIESrOPTlONAU
KS-3700
NOTE :Refer to the page of STAND KS-3700 (P22-27) for details.
&:X^>KKS^700 (P.22-27)
ACCESSORIES(for REPAIR)
22145139 Stay (for repair/il9ffi)
9

HP-3700/2700 Dec. 1990
B
C
D
p
G
H
I
I
J
M
N
O
Q
R
S
T
U
V
234^6739 '0 11 12 13
MAIN BOARD ASSEMBLY/ MAIN /K- Kffijx
ASSY 7624291001
(pcb 2292586901)
19 21 \3
pNOTE
1.
MAIN BOARD ASS’Y is common to HP-2700 and
HP-3700.
2. MAIN BOARD ASS’Y have some change.
Refere to the page of "MAIN BOARD CHANGE
INFORMATION" (P.35).
(-11%
1.
MAIN-1<'- Kiffiitlx HP-2700 iHP-3700
2.
MAINd<- KlCli. iTSHd-oV'Tlis TMAIN
(p.35)
COMPONENT SIDE PATTERN
’WfeOA7_ RA8J^32R:
:0t90i
74HC574
IIMilMi
I800 -
|dV07lOSe23i
iV07 lOS€3Di
MADE IN JAPAW
H8/532
MB07731
'~“b5.40^Hz
M
FTfT
01234
5. 6;7 89
|gND|i 1
1
1n1
TP2LNO 'lY'
1^
VARNING!
Lithiumbatteri. Explosionsrisk.
Fir endasi bytas av behofig servicelekniker.
Se instruktioner iservicemanoalen.
Lithium batteri for endast ersattes med samme typ och
fabhkat.
ADVARSEL!
Lithiumbatteri. Fare for eksplotion.
M^bare skiftes av kvalifisert tekniker som
beskfevet iservicemanualen.
Lithium batteri m5 kun utskiftes med samme type og
fabrikat.
VAROITUS!
Lithiumpansto. Rajahdysvaara.
Pariston saa vaihtaa ainoastaan
alan ammottimies.
Kun vaihal lithium pariston KAVTA saman valmistajan
samaa tyyppia.
ADVARSEL!
Lithiumbatteri. Eksplosionsfare.
Udskiftning kun foretages at en sagkyndig.
og som beskrevet iservicemanual.
Lithium batteri m^ kun udsKiftes med samme type og
fabrikat.
View from component side.
10

Dec. 1990 HP-3700/2700
78910 11 12 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 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60
MAIN BOARD CIRCUIT DIAGRAM/ MAIN /"K- KIh

HP-3700/2700
12 34
Dec. 1990
2 3 45678 9 10 11 12 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 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61
JACK BOARD CIRCUIT DIAGRAM/JACK /1?- K|HlS§H .<*
PHONES BOARD CIRCUIT DIAGRAM/ PHONES /K- K[° PHONES BOARD ASSEMBLY is stated on page 16. PHONESd<-
MSB ADJ
TRIM ^1OOKB
R8 470K VR1
nIIICBA I
INI
IN2 V+
IN3
IN4 GND
IGND I
TDA1543
12K
REVERB L
R36 H37
6.BK 6.BK
R3B R39
6.8K 6.BK
C19 I.0.01
R21
IC9A
IC9B 4565
FL2 244-313
K25-J1 13.7KHZ
IC10A 3-3K
4565 JJ3^
LC44 H50 R40 15K
-] Ie,
O.0033 4.7K ej^'^C13B R51
4565 !
FL1 244-313
K25-J1 13.7KHZ
-^CIOB 3-3K
4565
C48 loop
iIH57
6.8K
LC43 R47 Lzp
0.0033 4.7K 6^^
IIR48
—AA/* i
R44 15K 6.8K
IC14B
4565 I
nIC15B
8M5207L
BRILLIANCE BOOST CV
C52
4.7/25BP
C49
4.7/25BP
LC66
4.7/25BP
,IC19B rB2
?4565 N-... ..
R64
6.8K 4.7/25BP
^tsj R83
.loop R114
f-VW 1
‘100
R106 68K
IC22A
088 10OP I
R95 I
I
R105 68K
IC22B
C60 [|22P
R76 1OOK
C61
0.1 D5
1SS133: RBO 10OK
ic2oa
CN5
rD12 ^
^1SSI 33. In
DIO V
1SS133 R121
JK7 OUTPUT L
IC3D ^R7 IC3E
1.. .
R23 220
L12
\ojy if! J4.7K
0UTi3 p'-''4 R24 220 IC3A <R6 IC3B
I10K
XR5 LI
BRILLIANCE CUT CV
CIS. Cl 8. CBS’. C32. C35
C45. C47, C62, C74, C77
SIGNAL MUTE
147K :
4,7/25
i2.2K
^R85
C97 .
4.7/25BP i
phone L
phone R.
MUTE IN
MUTE OUTT
5PHONE R
_6 MUTE IN
7l MUTE OUT
HP2700 51048-0700
HP3700 52147-0710
L15 1SS133
5-EE} ID2j
1MIDI OUT -
^midi in -
3MIDI SW
4^lASTERTUNE-
74LS05
f^C27 O. 1
LI. L2. L3 12449381
L4. L5. L6 SBT-0460 TF
mANALOG GRAND
/T7 DIGITAL GRAND
HP2700 HP3700
JACK BOARD
C73, C76 R91. R94
6.8K
R92. R93I R99. R103
1R109, R110 "
1.5K C80. CB4
iC23B\.pH :
4565 ^I''CB3. C87
I0.1 I
R116, R117 (3.3K f
/77 R101. R102
33^ I^
R87. RB9 >100K
>R8B, R90
R107J R10B
2.2K I
HP-3700
CB1. C85
C73. C76 I 1 R91. R94 ilO. 1R100. R104
0.082 —IIIWV^ 4.7K
R99, R103
R92. R93 22K
'''10K II
R87, R89
-nAAA- f—
33K
C95, C96
—
^4.7/25BPJ 100K
100K
R88. R90
HP-2700
PHONES
BOARD
12

Dec. 1990 HP-3700/2700
JACK BOARD ASSEMBLY/ JACK tK-
K
litz:
ASSY 7624218000
(pcb 2292587302)
ASSY 7624318000
(pcb 2292587302)
NOTE
JACK BOARD circuitry have a difference in part between
HP-2700 and HP-3700 as shown in the circuit diagram.
And so, assembly number is different each other.
JACK.-}^'- |5]gSlli:i^-r#iCHP-2700i HP-3700 -eti
fc HP-2700fi<!: HP-3700ffl-C(ijt>-'
tt.
View from component side.
13

HP-3700/2700 Dec. 1990
SWITCH BOARD CIRCUIT DIAGRAM/ SWITCH -NOTE
SWITCH BOARD circuitry is common to HP-2700 and
HP-3700.
But assembly number is different each other because
length of wiring connecting to board is different each
other.
SWITCH tT:- HP-2700 tHP-3700
MAIN
BOARD
CN7
CN0
J
AMP .PS
BOARD
CN5
rSWITCH
BOARD KEY
TRANSPOSE TEMPERA
MENT PIAN01 PIAN02 HONKY TONK HARPSI CHORD VIBRA
PHONE E. PIANO CHORUS TREMOLO REVERB
ROOM REVERB
STAGE REVERB HALL VALUE DOWN VALUE UP DEMO
LED1 LED2LEDS LED4
I I
LED1 ...LED16=SLH34VC
D1 ...D16=1S2473 D4 '
CN1
1SRDO
2SRD1
3SRD2
4SRD3
5LWRO
6LWR1
7LWR2
BLWR3
9SCLO
10 SCL1
11SCL2
12 SCL3
1CN3
A-GND
A. GND
3A. +5
4VOLUME
5BRILLIANCE
+5
LED5
D5
pCM
SW5
LEDS
D6
Po
SW6
LED7
D7
PO-
SW7
LEDB
DB
£
LED9
raW—trasW—frspKI—
\
raW—fraKI—fraW—fraW—traW—fraW—frat^3—fpaW—fraKl—fpate]—fpaW—
j
—fpaM—
t
SWB
D9
£
LED10
swg
D10
Po—
SW10
LED1 1
D11
Po-
SW1 1
LED 12
D12
P0“
SW12
LED 13
D13
PSW13
LED 14
D14
SW14
LED 15
D15
Po-
SW15
<R6 <R
r4^
R5
OK
LED 16
DIB
p"^
SW16
t
Q1
DTA1 14
Q2
DTA1 14
Q3
DTA1 14
Q4
DTA1 14
£R3
OK
BRILLIANCE
1S2473X
VR1 019
10KB C5
0.1
VR2
10KB
100
D.+5
4
CN2
1T5TTS
2D.+5
3D.+5
4D.GND
50.SND
6D.GND
LI -r
II L2 —j— Cl 1
0.1
C3
Z^cio
47/ 16V
m
D.GND m
0.1
C7
0.1
14

SWITCH BOARD ASSEMBLY/SWITCH tK- KSStl
HP-2700
ASSY 7624212001
(pcb 2292587101)
HP-3700
ASSY 7624312001
(pcb 2292587101)
HP-3700/2700

HP-3700/2700 Dec. 1990
DIN BOARD ASSEMBLY
DIN/it-
HP-2700
ASSY 7624211000
(pcb 2292587201 4/4)
HP-3700
ASSY 7624311000
(pcb 2292587201 4/4)
AMP/ PS BOARD ASSEMBLY
AMP/ PS /it-
HP-2700
ASSY 7624208400 (220V/ 240V)
(pcb 2292587201 1/4)
HP-3700
ASSY 7624308400 (220V/ 240V)
(pcb 2292587201 1/4)
SMALL BOARD ASSEMBLY
SMALL /it- KUtl
(pcb 2292587201 3/4)
rNOTE
Replacement SMALL BOARD ASSY is inclided in
AMP/ PS BOARD ASSY.
jSMALL Kliitli. AMP/PS
PHONES BOARD ASSEMBLY
PHONES dt-
HP-2700
ASSY 7624209001
(pcb 2292587201 2/4)
HP-3700
ASSY 7624309001
(pcb 2292587201 2/4)
HP-2700
AMP/ PS BOARD CIRCUIT DIAGRAM
SMALL BOARD CIRCUIT DIAGRAM
AMP/PSdt- K[llSg0
SMALL dt -KIhISSII
SAFETY PRECAUTIONS:
The parts marked Ahave safe-
ty-related characteristics.
Use only listed parts for re-
placement.
^o
LTT$Oo
16

Dec. 1990 HP-3700/2700
rNOTE
1. PHONES BOARD CIRCUIT DIAGRAM is stated on
page 12.
2.
Replacement AMP/ PS BOARD is 220V /240V version
only.
220V/ 240V version differs from 100V/ 117V version
only in fuse system.
Order proper fuses and fuse labels also If necessary for
100V/ 117V. (Refer to the table in circuit diagram.)
1. PHONES 4^-
2.
MI*fflAMP/PS4<-
tto
220V/240Vi±mt 100V/U7V{i:mt(Dm\^Ht. t.a-XMch
to.- XBAt-^tz ij-Tfo
lOOV/ 117Vffl Ot.a
-
It.
HP-3700
AMP/PS BOARD CIRCUIT DIAGRAM
SMALL BOARD CIRCUIT DIAGRAM
AMP/PS/1-V- KlUSSil
SMALL 7|t-
SAFETY PRECAUTIONS:
The parts marked Ahave safe-
ty-related characteristics.
Use only listed parts for re-
placement.
SS±®)i]g :
43S!l>a:3®tgT-0< e.tXtzt,(DV
To
amomt. }§$$nt8B(Ss
^W$1- CD 8BaIS «I. 'ct: oC
UTTSt^o
HP-2700/ HP-3700
DIN BOARD CIRCUIT DIAGRAM
DIN /-It -KSSSII
Lch Wo
241-427
Lch Tw front
241-674
Lch Tw bottom
241-574
Rch Tw bottom
241-574
Rch Tw front
241-674
RESET
sA.+5V
D.+5V
_A D.+5V
D.GND
D.6ND
_7 O.GND
>
(VI
+<
_a A.GND
A.GND
1
1
A. -12V
52417-1 110
FUSE VALUE
FI. F2 F3. F4 F5 FB
100V
117V FUSE TSC 6.3A TSC 630mA TSC 1.25A TSC B.3A
LABEL 6.3A/125V 630mA/125V 1.25A/125V B.3A/125V
220V
240V FUSE CEE 6.3A CEE 400mA CEE 1.25A CEE 4A
LABEL T6 .3A/250V T400mA/250V T1 .25A/250V T4A/250V
17

HP-3700/2700 Dec. 1990
KEYBOARD/ilM
HP-2700
SK-688-N
ASSY 7624220000
HP-3700
SK-688-P
ASSY 7624320000
SK-688-N PARTS LIST
NO. PARTS NO. PARTS NAME
|
22575202 NATURAL KEY A257-202
22575203 NATURAL KEY B257-203
22575204 NATURAL KEY C257-204
22575205 NATURAL KEY D257-205
122575206 NATURAL KEY E257-206
22575207 NATURAL KEY F257-207
22575208 NATURAL KEY G257-208
22575209 NATURAL KEY A* 257-209
22575210 NATURAL KEY cr 257-210
222575211 SHARP KEY 257-211
322565335 NATURAL KEY WEIGHT 256-335
422565253 SHARP KEY WEIGHT 256-253
522175178 KEY SPRING 217-178
622195847 NATURAL KEY HOLDER 219-847
22195848 SHARP KEY HOLDER 219-848
_1_ 22815536 CHASSIS 88P 281-536 -n
822265472 FELT 88P 226-472 -CHASSIS 88P ASSY
922265476 FELT 88P 226-476 281-573 22815573
10 22155747 GUIDE BUSH A215-747
JJL 22155748 GUIDE BUSH B215-748
7618322000 P. C. B24P LOW ASSY
12 7618323000 P. C. B32P MID ASSY -P. C. BASSY
7618324000 P. C. B32P HI ASSY 7624221000
_L3_ 22185224 RUBBER SWITCH SHEET 218-224
_L4_ 22035178 CHASSIS STAND 203-178
HI 22125571 ANGLE 212-571
NYLON RIVET 3X5. 5A
_LL TAPPING SCREWS M3 X8B1 A
SK-688-P PARTS LIST
"noT PARTS NO. PARTS NAME
1
22575202 NATURAL KEY A 257-202
22575203 NATURAL KEY B257-203
22575204 NATURAL KEY C257-204
22575205 NATURAL KEY D257-205
22575206 NATURAL KEY E257-206
22575207 NATURAL KEY F257-207
22575208 NATURAL KEY G257-208
22575209 NATURAL KEY A* 257-209
22575210 NATURAL KEY CT 257-210
_2_ 22575211 SHARP KEY 257-211
322565335 NATURAL KEY WEIGHT 256-335
422565253 SHARP KEY WEIGHT 256-253
C22175178 KEY SPRING 217-178
622195847 NATURAL KEY HOLDER 219-847
22195848 SHARP KEY HOLDER 21S-B48
722815536 CHASSIS 88P 281-536 -n
822265472 FELT B8P 226-472 -CHASSIS 88P ASSY
922265476 FELT 88P 226-476 281-573 22815573
_L0_ 22155747 GUIDE BUSH A215-747
_LL 22155748 GUIDE BUSH B215-748
dZ. 22125643 PANEL ANGLE 212-643 1
13 7618322000 P. C. B24P LOW ASSY —
,
7618323000 P. C. B32P MID ASSY -P. C. BASSY
7618324000 1P. C. B32P HI ASSY 7624221000
_LAJ 22185224 RUBBER SWITCH SHEET 218-224
dZ. 22035178 CHASSIS STAND 203-178
_LS_ 22125571 ANGLE 212-571
NYLON RIVET 3X5. 5A
ut TAPPING SCREWS M3 X8 B1 A
18

Dec. 1990
SK-6 Rubber Switch Sheet
Difference Between Natural and Sharp Contacts -
—Height —
With rubber switch 12 PW218—224 for SK-6 keyboard,
natural-key and sharp-key contacts are made to different
dimensions. See the figures below and note the height of
contacts.
When replacing contacts, attach the sheet in place, i.e.
match characters with keys. Do not cut the sheet at a
point other than V-cut with agroove.
NOTE
Replacement SK-6 keyboard and replacement contact
PCS are equipped with acomplete set of rubber sheets.
Sheets are also available as separate replacement.
SK-effl^-Z-f yf-v-KdiA)
SK- hyf- l2PW2 18-224
SK-6 Vy^-h
fztzL. x-f
NATURAL KEY SHARP KEY
HP-3700/2700
SK-6 KEY REMOVAL LEVER
Alever as shown in Fig. 1is required in SK-6 key re-
moval.
Consult your local Roland service center for availa-
bility. If not available, make alever following the in-
structions described below.
SK-6
Fig. 1U
SUBSTITUTIVE LEVER
1. Prepare alength of wire (more than 95mm or 3.8
in.). Apaper clip is amost typical one.
2. (If acoiled wire as example of a paper clip.)
Uncoil and straigten the wire.
3. Reshape the wire to Fig. 2, with the dimensions
exactly matching the values given in the figure.
4. Prepare aseparate key (may be areplacement to
be used, natural or black.).
5. Grasp key and key holder at ©In Fig. 3with
thumb and forefinger to allow the holder goes to
the bottom. Retain tension on holder at this
point. And insert the key removal lever Into key
to hook the latch lock. ©In Fig. 3.
6. Release key holder. When the holder remains
locked, @, the lever you made now passes the
acceptance test, and ready to work on the
keyboard.
1.&$lt95nma±)
^5 o
-^(c? I
o
Fig. 37^
^m^j:hOKX-to
Fig. 2
DIMENSIONS IN FULL SCALE llTj-
19

HP-3700/2700
SK-6 KEY REMOVAL
Natural Key (Fig. 1)
1. Depress and hold the key at the front end ©and
then insert key removal lever @so that its tip goes
below the latch lock. Leave the lever in this state.
2. While lifting up the key front with one hand ®, press
the rear end of the key to more the key toward
front of the unit @.
SK-6 +-lS^U:^(Fig.1)
Black Key MS
1. Follow step in 1above. jL.
2. Lift key at front (3) and then move it toward the rear
of tho.nitre^ 2. +-®fltlSB%^t?,iitA C®tt®r'll(D®,'^^g5:fi-^
Fig. 1
SK-6 KEY REASSEMBLY SK-6 (Fig.2)
*Mounting akey does not require the key removal
lever.
Natural Key/Black Key (Fig. 2)
1.Finger-pinch the key and key holder at ®.Press and
release the button on the holder and verify the
smooth operation. Pressing the holder to the bottom
makes amechanical noise. This will not occur once
installed on the keyboard whose mechanism prevents
extensive key swing. Refer to '"Hints On Key
Mounting", as necessary.
2. Engage the forward hook on the key in the key
chassis bracket @.
3a. Natural Key
Depress the key on the rear and move it toward the
rear of the unit untill key holder tip engages with
AnUTS^®^^<!:i()§®XA-x$ Xv
ic 5i< Hlgli:
"+-5Sgl±®ty h
2. +-®ml3g^(D®^(c#'f Kic^Tio
3a. SSI
+Lolt ''.f *>^>®®:^|^(C X7-f
K$-S^>o
chassis notch. @.
3b. Black Key
Depress the key on the rear and move it toward the
front of the unit untill the blade on the key engages
with chassis notch. 0.
4. Check the key for noise and dragging. For corrective
adjustment, if necessary, refer to "Hints On Key
3b. mm
+-®^^^T-^jf Lo(f /.f*>ii®CD:^|pO(c X7
4. -y ”+-^m±
con yh”
Dec. 1990
Hints On Key Mounting
Key Noise (Figs. 1and 2)
1. There is apossibility that avirgin key makes anoise
as it is played. This is because the rough button 0
on the key cannot fit into chassis hole, leaving
clearance 0between key bottom and chassis.
Pressing the key several times will smooth away button
outer surface.
©+-«§(D«^(Fig.1,2)
2. The spring, having been not properly inserted onto
protrusion(s) ©,®on the key holder, may make a
noise or cause disturbed key stroke. To check the
spring first remove the key, then open the key holder
. . .grasp holder around the button and pull straight.
To reinsert the spring, first slip spring end onto
protrusion ©.Leave the spring as It rests against
holder by Its gravity. Align spring end with protrusion
@and close the holder.
2. TSOflas© ,'j y^hoTl''
Fig. 2
Dragging Key (Fig. 3)
Atorque grease is applied to portion ©.
Wipping off acoat of grease makes key touch lighter.
NOTE: Adifferent kind of grease is used on portions©.
(Fig. 3)
®Torque grease h'j x(G-424F type)
®Machine grease 7.(G-336A type)
20