Yamaha P 85 Service Manual

							11 P-85/P-85S

 
						

							P-85/P-85S
12
[270B]
A-1 Key
¢d£
B-1 Key
¢#d£One octave
¢¦«»”Ò£
(C0–B0) [270A][270A][270A][270A][270A][270A][270A] [270C]
C7 Key
¢$d£
One octave
¢¦«»”Ò£
(C1–B1)One octave
¢¦«»”Ò£
(C2–B2)One octave
¢¦«»”Ò£
(C3–B3)One octave
¢¦«»”Ò£
(C4–B4)One octave
¢¦«»”Ò£
(C5–B5)One octave
¢¦«»”Ò£
(C6–B6)
• Keyboard  assembly

Fig. 12


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							13 P-85/P-85S
One octave
¢¦«»”Ò£
(C–B)One octave
¢¦«»”Ò£
(C–B)
One octave
¢¦«»”Ò£
(C#–C)
Rubber contact
¢
€:°Ü£Key
¢d
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[260A] Rubber contact
¢
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[260B] [260C]
Rubber contact
¢
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Rubber contact
¢
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Rubber contact
¢
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Rubber contact
¢
€:°Ü£Rubber contact
¢
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Rubber contact
¢
€:°Ü£Rubber contact
¢
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GHL88HGHL88MGHL88L
• Keyboard  assembly

Fig. 15


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$ £ 

Fig. 15-1


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SFNPWF
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GPS
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PDUBWF

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CF
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12-5 Rubber Contact
  Remove the black and white key assembly for two 
octaves related to the subject rubber contact. The 
rubber contact can then be removed. 
  (Fig. 15, Fig. 15-1)
*   Note that the rubber contact has a specific 
installation direction.
*   One rubber contact fi ts for C# – C (for C – B 
keys).

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							P-85/P-85S
14
GHL88M
FFC cable
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Frame
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FFC cable
¢$­”Òç£Filament tape
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CN2 (27P)GHL88MCN2
(27P) Through hole
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Filament tape
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 assembly

Fig. 16


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$ £
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 Board
  Remove 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 Board
  Remove 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)
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							15 P-85/P-85S

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							P-85/P-85S
16
Frame
¢d
kÑè”Ü£Hammer, white key
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(d££
Hammer, black key
¢ËïÚ”¢d££ Hammer axis
¢ËïÚ”à£Bottom side¢ØÄÜ£
Pull forward¢	
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Bearing section¢à	!Z
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Apply grease
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Fig. 19


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• Keyboard  assembly

13.  Assembling the Keyboard Assembly
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)
Part Name Range for Applicable Tone Name
White Key
Hammer, W1 A-1 – F1
Hammer, W2 G1 – E3
Hammer, W3 F3 – D5
Hammer, W4 E5 – C7
Black Key
Hammer, B1 A#-1 – F#1
Hammer, B2 G#1 – D#3
Hammer, B3 F#3 – C#5
Hammer, B4 D#5 – A#6
13-2 GHL88L Circuit Board
  Tighten the six (6) screws marked [260A] to fi x the 
GHL88L circuit boards. (Fig. 15)
13-3 GHL88M Circuit Board
  Connect 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)

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							17 P-85/P-85S
Rubber contact
¢
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¢
€:°Ü£GHL88L
Triangle mark
¢~¯Ú”«£Triangle mark
¢~¯Ú”«£ Front
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Rubber contact
¢
€:°Ü£Clip
¢«æ¿Ó£GHL88L
Fig. 20


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							P-85/P-85S
18


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							19 P-85/P-85S
PIN
NO.I/O FUNCTION NAMEPIN
NO.I/O FUNCTION NAME
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22P12
P11
P10
P47/KR7
P46/KR6
P45/KR5
P44/KR4
P43/KR3
P42/KR2
P41/KR1
P40/KR0
NC
IC
X2
X1
VSS0
VDD0
/RESET
P53
P52
P51/TO2
P50/TI0/TO0
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
-
-
-
I
-
-
I
I/O
I/O
I/O
I/OPort 1
Port 4/Key return signal detection input
Internally connected (N.C.)
Clock
Ground
Power supply
System reset
Port 5
Port 5/16-bit timer output
Port 5/External count clock input to 8-bit timer/8-bit timer output
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44P32/INTP2/CPT2P31/INTP1
P30/INTP0
P22/RXD/SI0
P21/TXD/SO0
P20/ASCK//SCK0P07
P06
P05
P04
P03
P02
P01
P00
NC
VDD1
VSS1
P17
P16
P15
P14
P13I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
-
-
-
I/O
I/O
I/O
I/O
I/O
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
µPD789022GB-A15-8E(XZ560100) CPU (MKS)DM: IC301
AK4385ET(X6040A00)DAC (Digital to Analog Converter)DM: IC401
PIN
NO.NAME I/O FUNCTION
1
2
3
4
5
6
7
8MCLK
BICK
SDTI
LRCK
PDN
CSN
CCLK
CDTII
I
I
I
I
I
I
IMaster Clock
Audio Serial Data Clock
Audio Serial Date Input
L/R Clock
Power Down mode
Chip Select
Control Data Input
Control Data InputPIN
NO.NAME I/O FUNCTION9
10
11
12
13
14
15
16AOUTR-
AOUTR+
AOUTL-
AOUTL+
Vss
VDD
DZFR
DZFLO
O
O
O
-
-
O
ORch Analog  out(-)
Rch Analog  out(+)
Lch Analog  out(-)
Lch Analog  out(+)
Ground
Power Supply
Rch Data Zero Input Detect
Lch Data Zero Input Detect
PIN
NO.I/O FUNCTION NAMEPIN
NO.I/O FUNCTION NAME
1
2
3
4
5CS
VA
GND
AIN4
AIN3I
-
-
I/O
I/OChip select
Power supply +3.3 V
Ground
Analog input6
7
8
9
10AIN2
AIN1
DIN
DOUT
SCLKI/O
I/O
I
O
IAnalog input
Digital data input
Digital data output
Digital clock input
ADC084S021CIMM(X6905A00) ADC(Analog to Digital Converter)DM: IC107
 LSI PIN DESCRIPTION¢LSIz ;ó
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ADC084S021IMM (X6905A00) ADC (Analog to Digital Converter) ..............................19
AK4385ET (X6040A00) DAC (Digital to Analog Converter) ..........................................19
µPD789022GB-A15-8E (XZ560100) CPU (MKS) .........................................................19
YMW767-VTZ (X6055A00) CPU (SWL01T)..................................................................20 
						

							P-85/P-85S
20
PIN
NO.I/O FUNCTION NAMEPIN
NO.I/O FUNCTION NAME
1
2
3
4
5
6
7
8
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
62
63
64Vss
TESTNPLLBPN
PLLVDDCIN
PLLVss
TRSTN
TMS
TCK
TDI
TDO
XI
XO
Vss
V
DDICN
ECSN
EWRN/PD5ERDN/PD4EA3/PD3
EA2/PD2
EA1/PD1
EA0/PD0
IOV
DDED0/PC0
ED1/PC1
ED2/PC2
ED3/PC3
ED4/PC4
ED5/PC5
ED6/PC6
ED7/PC7
VssIRQ0N/PH0TxD0
RxD0
TxD1/PG2RxD1/PH1SCLK1/PH2SDO
SDI/PH3
BCLK
WCLK/SYOSYSCLK/PG3Vss
VDDIOVDDPA 0
PA 1
PA 2
PA 3
PA 4
PA 5
PA 6
PA 7
Vss
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7/SYI-
I
I
-
-
-
I
I
I
I
O
I
O
-
-
I
I
I
I
I
I
I
I
-
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
-
I
O
I
O
I
I
O
I
O
O
O
-
-
-
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
-
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/OGround
Input for TEST
PLL bypass select
PLL Power supply +2.5 V
Capacitor terminal for PLL
PLL Ground
JTAG input
JTAG output
Crystal oscillator
Crystal oscillator
Ground
Power supply +2.5 V
Hardware reset
CPU I/F chip select
CPU I/F write enable / Port D
CPU I/F read enable / Port D
CPU I/F address bus / Port D
Power supply +3.3 V
CPU I/F data bus / Port C
Ground
Interrupt input / Port H
Serial output
Serial input
Serial output / Port G
Serial input / Port H
External synchronization clock / Port H
Serial output
Serial input / Port H
Bit clock output
Word clock output
Clock output / Port G
Ground
Power supply +2.5 V
Power supply +3.3 V
I/O port A
Ground
I/O port B
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
11 0
111
11 2
11 3
11 4
11 5
11 6
11 7
11 8
11 9
120
121
122
123
124
125
126
127
128Vss
IOVDDLBN/LWRN/PF6UBN/UWRN/PF7RDN/PF4MD00
MD08
MD01
MD09
MD02
MD10
MD03
Vss
MD11
MD04
MD12
MD05
MD13
MD06
MD14
MD07
MD15
WRN/PF5Vss
VDDIOVDDMA17
MA16
MA15
MA14
MA13
MA12
MA11
MA10
MA09
MA08
MA07
MA06
MA05
Vss
MA04
MA03
MA02
MA01
CS0N/PG0MA18
MA19
MA21/PF1
MA22/PF2
MA20MA23/PF3
CSIN/PG1
MA00/PF0
Vss
VDDIOVDDCS2N/PE0
CS3N/PE1
CS4N/CASN/PE2CS5N/PE3CS50RDN/PE4CS51WRN/PE5
CS52WRN/PE6
CS53WRN/RASN/PE7
-
-
O
O
O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
-
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
-
-
-
O
O
O
O
O
O
O
O
O
O
O
O
O
-
O
O
O
O
O
O
O
O
O
O
O
O
O
-
-
-
O
O
O
O
O
O
O
OGround
Power supply +3.3 V
External memory lower-byte enable / Port FExternal memory upper-byte enable / Port FExternal memory read enable / Port F
External memory data bus
Ground
External memory data bus
Ground
Power supply +2.5 V
Power supply +3.3 V
External memory address bus
Ground
External memory address bus
External memory chip select / Port G
External memory address bus
External memory address bus / Port F
External memory address bus
External memory address bus / Port F
External memory chip select / Port G
External memory address bus / Port F
Ground
Power supply +2.5 V
Power supply +3.3 V
External memory chip select / Port E
YMW767-VTZ(X6055A00) CPU (SWL01T)DM: IC101, IC201