Yamaha P 85 Service Manual
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Page 1
SERVICE MANUAL HAMAMATSU, JAPAN SERVICE MANUAL Copyright (c) Yamaha Corporation. All rights reserved. PDF & ’07.10 SPECIFICATIONS¢ ïù“7£ .................................................3 PANEL LAYOUT¢ÍÉçè ž¢Ä£ ......................................4 CIRCUIT BOARD LAYOUT¢âÇ¿Äè ž¢Ä£ .................5 DISASSEMBLY PROCEDURE¢ ür q£ ..............................6 LSI PIN DESCRIPTION¢-4* z ; ó ¯£ .............................19 IC BLOCK DIAGRAM¢*$ Òé¿« $£...
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P-85/P-85S 2 WARNING 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, destruction of expensive components...
Page 3
3 P-85/P-85S SPECIFICATIONS Keyboard 88 keys (A-1–C7) Sound Source AWM Stereo Sampling Polyphony (Max.) 64 Voice Selection 10 Effect Reverb Volume Master Volume Controls Dual, Metronome, Transpose, Tuning, Touch (Hard/Medium/Soft/Fixed) Pedal SUSTAIN PEDAL* Demo Songs 10 Voice Demo Songs, 50 Piano Preset Songs Recording/Playback 1-track recording/playback (1 user song) MIDI Local On/Off, Transmit/Recieve channel, Program change On/Off, Control change On/Off Jacks/Connectors MIDI (IN/OUT), PHONES, DC IN...
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![Page 4
P-85/P-85S
4
PANEL LAYOUT¢ÍÉçè ž¢Ä£
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
-
40(
+
2./
¢(G åµÄx
jØT’_oM
‡b{£Shows the jacks
and terminals as
seen when viewed
from the rear of
the instrument.
¢(G åµÄx...](http://img.usermanuals.tech/thumb/83/102378/w300_d_1511187928-yamaha-p-85-service-manual_d-3.png "Page 4
P-85/P-85S
4
PANEL LAYOUT¢ÍÉçè ž¢Ä£
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
-
40(
+
2./
¢(G åµÄx
jØT’_oM
‡b{£Shows the jacks
and terminals as
seen when viewed
from the rear of
the instrument.
¢(G åµÄx...")
P-85/P-85S
4
PANEL LAYOUT¢ÍÉçè ž¢Ä£
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
-
40(
+
2./
¢(G åµÄx
jØT’_oM
‡b{£Shows the jacks
and terminals as
seen when viewed
from the rear of
the instrument.
¢(G åµÄx...
Page 5
5 P-85/P-85S CIRCUIT BOARD LAYOUT¢âÇ¿Äè ž¢Ä£ ¢d k TTŸZ£ Upper case assembly ¢ Í”µ TTŸZ£ Lower case assembly ¢
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![Page 6
P-85/P-85S
6
Fig. 1
¢
$ £
DM
CN301CN602CN301 CN602
[33]
[34][33]
[33]
[33]
[33]
[33]
[33]
[33][33]
[33][33][33][33][33][37] FFC Cover
¢$ §Ì”£
Lower case assembly
¢](http://img.usermanuals.tech/thumb/83/102378/w300_d_1511187928-yamaha-p-85-service-manual_d-5.png "Page 6
P-85/P-85S
6
Fig. 1
¢
$ £
DM
CN301CN602CN301 CN602
[33]
[34][33]
[33]
[33]
[33]
[33]
[33]
[33][33]
[33][33][33][33][33][37] FFC Cover
¢$ §Ì”£
Lower case assembly
¢")
P-85/P-85S 6 Fig. 1 ¢ $ £ DM CN301CN602CN301 CN602 [33] [34][33] [33] [33] [33] [33] [33] [33][33] [33][33][33][33][33][37] FFC Cover ¢$ §Ì”£ Lower case assembly ¢
Page 7
![Page 7
7 P-85/P-85S
DM
JK
HP
AM
[30A][30B][32]
[30B][32]
[30B]
[36]
[30A]
[30C][30C]
Lower case assembly
¢](http://img.usermanuals.tech/thumb/83/102378/w300_d_1511187928-yamaha-p-85-service-manual_d-6.png "Page 7
7 P-85/P-85S
DM
JK
HP
AM
[30A][30B][32]
[30B][32]
[30B]
[36]
[30A]
[30C][30C]
Lower case assembly
¢")
7 P-85/P-85S DM JK HP AM [30A][30B][32] [30B][32] [30B] [36] [30A] [30C][30C] Lower case assembly ¢
Page 8
![Page 8
P-85/P-85S
8
Upper case assembly[30E]
¢ Í”µ TTŸZ£ Keyboard assembly
¢d
k TTŸZ£
[31][31][31]
[30E][30E]
Fig. 3
¢
$ £
1/](http://img.usermanuals.tech/thumb/83/102378/w300_d_1511187928-yamaha-p-85-service-manual_d-7.png "Page 8
P-85/P-85S
8
Upper case assembly[30E]
¢ Í”µ TTŸZ£ Keyboard assembly
¢d
k TTŸZ£
[31][31][31]
[30E][30E]
Fig. 3
¢
$ £
1/")
P-85/P-85S 8 Upper case assembly[30E] ¢ Í”µ TTŸZ£ Keyboard assembly ¢d k TTŸZ£ [31][31][31] [30E][30E] Fig. 3 ¢ $ £ 1/
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9 P-85/P-85S 1/
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P-85/P-85S 10