MIDI DATA FORMAT ...............................................................48
PARTS LIST
BLOCK DIAGRAM(ブロックダイアグラム)
CIRCUIT DIAGRAM(回路図)
HAMAMATSU, JAPAN
Copyright (c) Yamaha Corporation. All rights reserved. PDF & ’07.10
P-85/P-85S
IMPORTANT NOTICE
This manual has been provided for the use of authorized Yamaha Retailers and their service personnel. It has been assumed that basic
service procedures inherent to the industry, and more specifically Yamaha Products, are already known and understood by the users,
and have therefore not been restated.
WARNING : Failure to follow appropriate service and safety procedures when servicing this product may result in personal injury,
IMPORTANT : This presentation or sale of this manual to any individual or firm does not constitute authorization certification,
The data provided is belived to be accurate and applicable to the unit(s) indicated on the cover. The research engineering, and service
departments of Yamaha are continually striving to improve Yamaha products. Modifications are, therefore, inevitable and changes in
specification are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the
distributor’s Service Division.
WARNING : Static discharges can destroy expensive components. Discharge any static electricity your body may have accumulated
destruction of expensive components and failure of the product to perform as specified. For these reasons, we advise
all Yamaha product owners that all service required should be performed by an authorized Yamaha Retailer or the
appointed service representative.
recognition of any applicable technical capabilities, or establish a principal-agent relationship of any form.
by grounding yourself to the ground bus in the unit (heavy gauge black wires connect to this bus.)
IMPORTANT : Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to the unit.
WARNING: This product contains chemicals known to the State of California to cause cancer, or birth defects or other reproductive harm.
DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHAT SO EVER!
Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose eyes to solder/
flux vapor!
If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handling food.
IMPORTANT NOTICE FOR THE UNITED KINGDOM
Connecting the Plug and Cord
IMPORTANT. The wires in this mains lead are coloured in accordance with the following code:
BLUE : NEUTRAL
BROWN : LIVE
As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured makings identifying the terminals in
your plug proceed as follows:
The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLACK.
The wire which is coloured BROWN must be connected to the terminal which is marked with the letter L or coloured RED.
Making sure that neither core is connected to the earth terminal of the three pin plug.
• This applies only to products distributed by Yamaha-Kemble Music (U.K.) Ltd. (2 wires)
WARNING
Components having special characteristics are marked and must be replaced with parts having specifi cation equal to those
originally installed.
Keyboard88 keys (A-1–C7)
Sound SourceAWM Stereo Sampling
Polyphony (Max.)64
Voice Selection10
EffectReverb
VolumeMaster Volume
ControlsDual, Metronome, Transpose, Tuning, Touch (Hard/Medium/Soft/Fixed)
PedalSUSTAIN PEDAL*
Demo Songs10 Voice Demo Songs, 50 Piano Preset Songs
Recording/Playback1-track recording/playback (1 user song)
MIDILocal On/Off, Transmit/Recieve channel, Program change On/Off, Control change On/Off
Jacks/ConnectorsMIDI (IN/OUT), PHONES, DC IN 12V, SUSTAIN, PEDAL UNIT
Main Amplifi ers6 W + 6 W
Speakers(12 cm × 6 cm) × 2
Dimensions (W × D × H)1,326mm × 295mm × 151.5mm [52-3/16" × 11-5/8" × 5-15/16"]
Weight11.6 kg (25 lbs., 9 oz.)
Power SupplyAdaptor: PA-5D, PA-150, or an equivalent recommended by Yamaha
Power Consumption20 W
Accessories
When an optional FC3 Foot Pedal or an optional LP-5 Pedal Unit is connected, the half pedal effect can be used.
Specifi cations and descriptions in this owner’s manual are for information purposes only. Yamaha Corp. reserves the right to
change or modify products or specifi cations at any time without prior notice. Since specifi cations, equipment or options may
not be the same in every locale, please check with your Yamaha dealer.
Owner’s Manual, Quick Operation Guide, AC Power Adaptor, Pedal (FC5), Music Rest
Shows the jacks
and terminals as
seen when viewed
from the rear of
the instrument.
(左記イラストは
裏面から見てい
ます。)
(
Shows the jacks
and terminals as
seen when viewed
from the rear of
the instrument.
(左記イラストは
裏面から見てい
ます。)
q [STANDBY/ON] switch
w [MASTER VOLUME] slider
e [DEMO/SONG button
r SELECT [
] [ ]/TEMPO [ ] [ ] buttons
t [METRONOME] button
y [REC] button
u [PLAY] button
i VOICE buttons
o [PEDAL UNIT] jack
!0 [DC IN 12V] jack
!1 MIDI [IN] [OUT] terminals
!2 [SUSTAIN] jack
!3 [PHONES] jack
4
q [STANDBY/ON] スイッチ
w [MASTERVOLUME] スライダー
e [DEMO/SONG] ボタン
r SELECT[
][ ] ボタン /TEMPO[][] ボタン
t [METRONOME] ボタン
y [REC] ボタン
u [PLAY] 端子
i 音色ボタン
o [PEDALUNIT] 端子
!0 [DCIN12V] 端子
!1 MIDI[IN][OUT] 端子
!2 [SUSTAIN] 端子
!3 [PHONES] 端子
CIRCUIT BOARD LAYOUT(ユニットレイアウト)
<Bottom view>
P-85/P-85S
PN1PN2
<Top view>
Speaker L
(スピーカ L)
HP
AM
Upper case assembly
(上ケース Assy)
Lower case assembly
(下ケース Assy)
JK
DM
Speaker R
(スピーカ R)
<Top view>
GHL88MGHL88L
Keyboard assembly
(鍵盤 Assy)
GHL88H
5
P-85/P-85S
DISASSEMBLY PROCEDURE(分解手順)
Caution:
1. Be sure to attach the removed fi lament tape just
as it was before removal.
2. Pay attention not to insert and install the cable
to the connector inversely. (Photo 1)
Front Side (Printed Side)
表面(印刷面)
1. Lower Case Assembly
(Time required: About 10 minutes)
1-1 Remove the four (4) screws marked [37]. The FFC
cover can then be removed. (Fig. 1)
1-2 Disconnect the connectors CN301 and CN602 on
the DM circuit board. (Photo 2)
1-3 Remove the fifty-seven (57) screws marked
[33] and the screw marked [34]. The lower case
assembly can then be removed. (Fig. 1)
12-1 White key assembly and black key assembly
Remove the four (4) screws marked [270A] fi xing
the black and white key assembly for one octave
(C–B). To remove the back of the black and white
key assembly of each octave, while pushing the
end lug of white keys rearward and lifting the back
of keys, slide the black and white key assembly
towards you. (Fig.12, Fig.13)
12-2 When removing white keys numbered as A-1 and
B-1 key and black key, remove two (2) screws
marked [270B] and then lift the back of the keys
and slide the black and white keys towards you.
(Fig. 12)
12-3 When removing the C7 key, remove a screw
marked [270C] and then lift the back of C7 key
and slide it towards you. (Fig. 12)
Note: When removing white key assembly and black key
assembly, be careful not to allow grease to attach to
the circuit board and rubber contacts, etc. (Fig. 13)
12-4 Actuate RubberRemove the actuate rubber. (Fig. 14)
12. GHL(GHS)鍵盤Assyの分解
12-1白鍵Assy、黒鍵Assy
各オクターブ(C 〜 B)の白鍵 A ssyと黒 鍵 A s syを
止めている[270A]のネジ4本を外し、白鍵のツメを
後方に押しながら1オクターブ分の白鍵A s sy/黒
鍵Assyを外します。このとき、白鍵Assy/黒鍵
Assyの後部を持ち上げてから、手前にスライド
させて取り外してください。(図12、図13)
12-6 GHL88L Circuit Board Remove the black and white key assembly (A-1 –
B2). (See procedure 12-1)
Remove the six (6) screws marked [260A]. The
GHL88L circuit board can then be removed. (Fig. 15)
12-7 GHL88M Circuit BoardRemove the black and white key assembly (C1 –
B5). (See procedure 12-1)
Remove the seven (7) screws marked [260B]. The
GHL88M circuit board can then be removed. (Fig. 15)
Detach the fi lament tape and disconnect the FFC
cable. (Fig. 16)
12-8 GHL88H Circuit BoardRemove the black and white key assembly (C5 –
C7). (See procedure 12-1)
Remove the fi ve (5) screws marked [260C]. The
GHL88H circuit board can then be removed. (Fig. 15)
12-6GHL88Lシート
A-1 〜 B2までの白鍵Assy/黒鍵Assyを外します。
(12-1項参照)
[260A]のネジ6本を外して、GHL88Lシートを外し
ます。(図15)
12-7GHL88Mシート
C1 〜 B5までの白鍵Assy /黒鍵Assyを外します。
(12-1項参照)
[260B]のネジ7本 を外して、GHL88Mシートを外
します。(図15)
フィラメントテープをはがして、FFCケーブルを
抜き取ります。(図16)
12-8GHL88Hシート
C5 〜 C7までの白鍵Assy /黒鍵Assyを外します。
(12-1項参照)
[260C]のネジ5本を外して、GHL88Hシートを外し
ます。(図15)
• Keyboard assembly
<Top view>
Keyboardassembly
(GHL(GHS)鍵盤Ass'y)
Filament tape
(フィラメントテープ)
GHL88M
(FFCケーブル)
CN2 (27P)
Fig. 16
FFC cable
(図 16)
Through hole
(通し穴)
FFC cable
(FFCケーブル)
GHL88M
Filament tape
(フィラメントテープ)
Frame
(フレーム)
CN2
(27P)
14
P-85/P-85S
12-9 Hammer (White Key), (Black Key)Remove the black and white key assembly for the
related keys.
With the key frame placed upside down, push the
hammer forward from the rear, then a click sound
is heard and the hammer bearing section can be
removed from the hammer axis of the key frame.
Take out the hammer sideways. (Fig. 17, Fig. 18)
13-1 Hammer (White Key), (Black Key)After applying grease to the bearing section of
the hammer, bring the hammer (white key) (black
key) sideways from the rear, fi t its bearing section
to the hammer axis of the key frame and pull it
forward until a click sound is heard. (Fig. 19)
* There are 8 hammer types differing in weight.
Be sure to check the type of the hammer for
correct installation. (See the table below)
13-2 GHL88L Circuit BoardTighten the six (6) screws marked [260A] to fi x the
GHL88L circuit boards. (Fig. 15)
13-3 GHL88M Circuit BoardConnect the FFC cable to CN2 of the GHL88M
circuit board, attach the fi lament tape. (Fig. 16)
Pass the end of the cable into the through hole in
the frame and pull it out from its outlet. (Fig. 16)
Tighten the seven (7) screws marked [260B] to fi x
the GHL88M circuit board. (Fig. 15)
Hammer, black key
(ハンマー(黒鍵))
(図 19)
Pull forward(手前に引く)
Hammer, white key
(ハンマー(白鍵))
13-2GHL88Lシート
GHL88Lシートを取り付け、[260A]のネジ6本で固
定します。(図15)
13-3GHL88Mシート
FFCケ ー ブ ルをGHL88Mシー ト のCN2に 差 し 込
み、フィラメントテープを貼り付けます。(図16)
ケーブルの先をフレームの通し穴に通して、抜き
口から引き出します。(図16)
GHL88Mシ ートを取り付け、[260B]のネジ7本で
固定します。(図15)
16
P-85/P-85S
13-4 GHL88H Circuit BoardTighten the five (5) screws marked [260C] to fix
the GHL88H circuit board. (Fig. 15)
13-5 Rubber ContactNote that the rubber contact has specifi c installation
direction. Be careful not to install it in the wrong
direction.
* A triangle mark ( △ ) on the rubber contact
must face the front. (Fig. 20)
To prevent looseness of the rubber contact,
fi t it securely in place using a clip or similar
object. (Fig. 21)
Rubber contact
(接点ゴム)
GHL88L
Rubber contact
(接点ゴム)
13-4GHL88Hシート
GHL88Hシートを取り付け、[260C]のネジ5本で固
定します。(図15)
13-5接点ゴム
接点ゴムには、取り付けの向きが決まっています。
接点ゴムを逆に取り付けないように注意してくだ
さい。
※接点ゴムの三角マーク(△)がフロント側になる
ことを確認します。(図20)
接点ゴムの浮きがないように、クリップ等で接点
ゴムを基板にはめ込みます。(図21)
Rubber contact
(接点ゴム)
Clip
(クリップ)
GHL88L
Front
(フロント)
Triangle mark
(三角マーク)
Fig. 20
Triangle mark
(三角マーク)
(図 20)
13-6 Actuate RubberAfter applying grease to top and bottom faces of
the actuate rubber, fit it to the white key (black
key). (Fig. 22)
Apply grease
(グリス塗布)
Fig. 22
Fig. 21
(図 21)
13-6駆動ラバー
駆動ラバーの上下にグリスを塗布後、白鍵(黒鍵)
に駆動ラバーをはめ込みます。(図22)
Fit in this way.
Actuate rubber
(駆動ラバー)
(図 22)
(はめ込む)
17
P-85/P-85S
13-7 White key assembly and black key assemblyAfter applying grease to the key guide, install the
white key assembly/black key assembly. At this
time, check to make sure that the key guide of
the key frame and inside slit at the front of white
key as well as the contact arm of the hammer and
actuate rubber of the white key assembly/black
key assembly are installed properly. (Fig. 23)
Use the four (4) screws marked [270A] to fix 1
octave white key assembly/black key assembly.
(Fig. 12)
13-8 Use the two (2) screws marked [270B] to fi x the
A-1 to B-1 keys. (Fig. 12)
13-9 Use a screw marked [270C] to fi x the C7 key.
(Fig. 12)
Port 3/External interrupt input/Capture edge input
Port 3/External interrupt input
Port 2/Asynchronous serial interface serial data input/Serial interface serial data input
Port 2/Asynchronous serial interface serial data output/Serial interface serial data output
Port 2/Asynchronous serial interface serial clock input/Serial interface serial clock
Port 0
-
-
-
-
-
Power supply
Ground
Port 1
DM: IC401
Rch Analog out(-)
Rch Analog out(+)
Lch Analog out(-)
Lch Analog out(+)
Ground
Power Supply
Rch Data Zero Input Detect
Lch Data Zero Input Detect
ADC084S021CIMM
PIN
NO.
1
2
3
GND
4
AIN4
5
AIN3
CS
VA
I/OFUNCTIONNAME
I
-
I/O
I/O
(X6905A00) ADC
Chip select
Power supply +3.3 V
Ground
Analog input
(Analog to Digital Converter)
PIN
NO.
10
6
7
8
9
AIN2
AIN1
DOUT
SCLK
DIN
I/OFUNCTIONNAME
I/O
I/O
Analog input
I
O
I
Digital data input
Digital data output
Digital clock input