Yamaha P-105B Service Manual page 91

A B
P-105B/P-105WH/P-35B/L-85WH/LP-5AWH
1
Keyboad
88Keys
GHS
GHL88H
2
DM
3
4
16.9344MHz
+12V
+5V
2
Detect Voltage 4.2V
/H-RES
Reset
1
IC106(5P)
PROG/WAVE ROM
5 <Soft Reset>
6
7
4
C D
PN
GHL88L
+3.3D
CN1 (17P) STANDBY/ON
CN1 (17P)
LD601
GHL88M
CN2 (27P)
CN201 (27P)
+3.3D +3.3D
TR101
Decoder Decoder
74LV138A 74LV138A
IC201(16P) IC202(16P)
/DAC-MUTE
3-12,173,174
X101
21
37 SDO
XI
WCLK SYSCLK: 256Fs
22 35
XO
39 BCLK
Ctystal
40 SYSCLK
CPU
+1.8D,+3.3D
SWL01U
IC100(176P)
128
PG1 Heart Beat
130
ICN
165
PJ5 /MUTE
Bus Clock: 33.8688MHz
/MUTE
/DAMP_MUTE
16
+3.3D Heart Beat
ROM
64Mbit(*1)
IC105(58P)
*
E F
P-35B
GRAND PIANO/
MASTER FUNCTION
VR601
SW602 SW601
CN601 (8P)
CN102 (8P)
+3.3D
AN0
MIDI-IN,MIDI-OUT,/DAC-MUTE
+3.3A
+12V
11
/MUTE +12V
DAC
1,16
L+
3 1
RC IC303
24bit
Filter
WM8524
R+ 5 7
7-10
IC303
IC301(16P)
IC303(8P)
TR303
+12V
5-8 TR304
D.AMP
26,27 L+
31,32
YDA175
L-
LC
R+
IC302(33P) Filter
14,15
R-
24 10,11
MUTEN
17
SLEEPN
+3.3D
Error
/DETECT
1 IC104(9P)
13
Detection 2
7
/DAC-MUTE
IC103(16P) 1
TR305
6
/MUTE
9
/HP_IN
/DAMP_MUTE
5
HP_IN
TR103
+3.3A
+1.8V
+3.3V
+3.3D
+1.8D
DC/DC
IC102(4P)
IC101(8P)
+1.8V +3.3V Analog
Device Device Device
G H
SUSTAIN
PHONES/
MIDI
PEDAL
AUX
OUT IN
JK401
JK403 JK402 JK404
MIDI I/F
IC401(6P)
TR401–402
PWSW
MIDI-IN,MIDI-OUT,/DAC-MUTE
SUS_PEDAL SUS_PEDAL
HP IN
HP IN
HP-L
HP-R
/PSWI
/PSWI
PSWO
PSWO
+12V +12V
SP-L
+
–
6Ω
SP-R
+
–
6Ω
+12V
I J
DC IN 12V
AC-IN
AC ADAPTOR
PA-150/PA-150A
/PA-5D
+12V
DCIN
JK501
CN501 (4P)
CN502 (4P)
PWSW
TR501–502
+12V
JK