Yamaha PF-1000 Service Manual page 109

A B
PF-1000 OVERALL CIRCUIT DIAGRAM 1/3 (DM, SWX, MIC, INV)
1
DM
2
to MA60-CN4
to DJK - CN11
3 to DJK - CN4
BUFFER
to IC18-164
to IC18-110
to IC18-100
4 to IC18-107
to IC18-88
to IC18-89
to IC18-113
to IC18-112
to GH-D SW L-CN1
5
to MA60-CN3
6
FDD
7
to H9
to H9
LCD Back Light
to E8
LCD
8
9
10
11
12
INV
*
not installed
28CC1-8824130 1
13
* ATTENTION
High Voltage
14
15
16
: Ceramic Capacitor
Note : See parts list for details of circuit board component parts.
17 PF-1000
A B
C D E
to IC24-14, IC25-14, IC40-24, IC41-24
to IC22-20
to IC43-1, IC29-14, IC42-24
IC1-4
to IC18-168
COMPARATOR
to IC18-206
NAND
REGULATOR +3.3V
to IC22-67
to IC22-19
to IC1-5, CN10-15
to IC22-18
to IC1-3
to IC1-9
to IC1-8
to IC18-200 to IC1-9
to IC18-207
to CN12-10
to IC18-201
to CN12-12
to CN5-10
to CN7-14
to IC43-19
to IC18-169
to IC18-203
to IC18-172
to IC18-166
to IC18-199
to IC18-118
CLOCK
to IC18-162
to IC26-41
to CN6-6
to CN6-8
to IC33-26
to IC9-3, CN27-24, IC26-30, IC30-16, IC8-10
to IC26-9, IC9-4, IC8-13, IC33-28
to IC33-11
to IC36-1
to CN9-4
CLOCK
to IC18-90
to IC26-10, IC8-14, IC9-5,
IC36-151
AND
to IC1-18
to IC1-17
to IC18-171
to IC18-165
to IC1-15
to IC1-14
to IC39-4
FDC
to IC21-6
to IC18-114
SRAM 256K
LCDC
to IC11-7
to IC1-15
to IC1-14
to IC39-4
to IC18-119
INVERTER
SWX00B
DRAM 4M
to IC21-12
to IC39-4
to IC18-88
to CN10-12
SWX
SWX00B
C D E
F G
to CN11-2
to IC22-17, IC11-9
to IC39-1, 2
,
to IC24-54, IC25-54, IC29-54, IC1-6, IC36-152, IC40-27, IC41-27, IC42-27
to IC24-55, IC25-55, IC29-55, IC1-7
to IC18-93
to IC18-108
to IC18-106
to IC18-99
CPU
to IC26-21
to IC26-15
to IC18-107
to J6
, ,
AND
BUFFER BUFFER BUFFER
DECODER
to IC26-11
to IC8-19
to IC9-6
BUFFER BUFFER BUFFER
to IC18-182
RBG
ENCORDER
GATE ARRAY
28CC1-8820431-001
MASK ROM 128M
WAVE
not installed
to IC1-12
to E11
to IC30-19
to IC30-21
not installed
not installed
F G
H I
SDRAM 64M not installed
to IC18-96
to IC18-96
not installed
to IC18-96
to IC18-158
to IC26-22
to IC36-154
to IC18-96
to IC36-166
D-FF
NAND
to IC18-98
to H3, IC18-193
to IC36-150
SIO4
to IC11-5 (GATE ARRAY)
to IC11-6
to IC1-14 to IC1-15
to IC39-4
to IC21-4
DAC
SRAM 1M
to IC36-160
to IC36-158
to IC36-164
to IC36-163
to D3
to CN7-9
to A-JACK to PNR-CN1
-CN540
4
MIC/
LINE IN
28CC1-8820431-002
SWX00B
INVERTER
H I
J K
PF-1000
not installed
to IC18-98
to IC18-88
to IC18-98 to IC18-88
FLASH ROM 8M
to IC18-88
to IC1-13
to IC1-14
to IC1-16
to IC18-122
to IC18-162
to K7
ADC
: inatalled
to IC36-156 : not inatalled
to IC36-157
to IC36-164
to IC36-160
to IC1-15
: inatalled
: not inatalled
to IC18-94
OP AMP
to IC18-116
to
IC18-177
to IC18-1117
OP AMP
REGULATOR +5V
MIC
INPUT VOLUME
OP AMP
OP AMP
not installed
28CC1-8823664 2
DRAM 4M
not installed
28CC1-8820112
PF-1000
J K
L
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
L