Yamaha DSP-AX761, Service Manual

Page: 95 / 137

CB81 CB83 CB84 CB85
CB87
CB88
CB89
CB90
IC81
IC82
IC83
A
1
2
3
4
5
6
7
8
9
10
B C D E F G H I J K L M N
RX-V661/HTR-6060/DSP-AX761
95
★
All voltages are measured with a 10M
Ω
/V DC electronic voltmeter.
★
Components having special characteristics are marked s and must be replaced
with parts having specifications equal to those originally installed.
★
Schematic diagram is subject to change without notice.
DSP 3/3
2
C-1
1
B-2
POINT C-1 1 / Pin5, 2 / Pin6 of CB85
AC cable ON
AC cable OFF
+5M
/RES
1
2
1
2
AC cable ON
POINT B-2 Pin 20 of IC81
4.9
4.4
0 0 0
0.1 4.9 0.1 4.9 4.9 0.1 4.9 0.1 4.9
4.9
0
0.1
0 0
4.8 4.9 5.0 5.1 4.9 5.2
0
4.9
0.1
0.1
0
0
5.0
5.0
5.0
5.0
5.0
4.9
4.9
0
0.2
0
0
0
4.9
0
4.5
4.5
4.5
4.8
0
4.9
0.4
4.9
0.1
0
0
0
4.9
4.9
4.9
0
0
4.9
0
0.1
0
4.9
4.9
4.9
4.9
0.1
0.1
5.0
0
0
4.7
5.2
0.5
5.1
0
1.0
1.0
4.9
5.1
4.9
0
4.9
2.3
3.2
5.2
5.2
4.9
4.9
0 0.1 0 5.2 4.8
4.9
4.9 0.1 4.9 5.0 0 0.1 0 0 2.4 0 2.5 4.9 5.0 5.0 4.9 4.9 4.9 0 0 0.1 5.0 2.7
0
0.2
4.9
4.8 4.8 0
4.7 5.2
0
4.8
0
4.9 5.0
0
4.9 5.1
10.1
0
5.8
5.8
5.8
5.8
5.1
5.1 5.1
5.1
4.9
4.8
4
.8
0
0
4.4
5.2
5.0
0.1 0.6
4.4
5.1
5.0
4.4
5.1
0.1
0.6
0.6 4.8
5.0
4.4
5.1
5.0
4.4
5.1
5.0
4.9
5.1
-11.9
4.9
5.1
-11.9
4.9
5.1
-6.6
0.5 3.2
0 0
2.3
5.1
5.1
IC81 : M30878JBGP
Single chip 16/32-bit microprocessor
Port P0 Port P1 Port P2 Port P3 Port P4 Port P5 Port P6
Po
rt P7
Port P14 Port P15 Port P11 Port P12
Po
rt P1
0
Po
rt P9
Po
rt P8
P8
5
Port P13
R0H R0L
R1H R1L
R2
R3
A0
A1
FB
SB
NOTES:
1. Ports P11 to P15 are provided in the 144-pin package only.
2. Included in the 144-pin package only. 26 inputs maximum in the 100-pin package.
3. 6 channes available in the 100-pin package.
4. 6 channes available in the 100-pin package.
5. 10 channes available in the 100-pin package.
FLG
INTB
ISP
USP
PC
SVF
SVP
VCT
Multiplier
M32C/80 series mixroprocerssor Core
Clock Generation Circuit
XIN - XOUT
XCIN - XCOUT
On-chip Oscillator
PLL Frequency Synthesizer
A/D Converter:
1 circuit
Standard: 10 inputs
Maximum: 34 inputs (2)
UART/Clock Synchronous Serial I/O:
7 channels
(3)
CRC Calculation Circuit (CCITT):
X16+X12+X5+1
X/Y Converter:
16 bits x 16 bits
D/A Converter:
8 bits x 2 channels
Peripheral Functions
<
V CC2
> <
V CC1
>
<
V
CC
1
>
ROM
RAM
Memory
<
V CC1
> <
V CC2
>
7 8 5 8 8
(Note 1)
8
8
7
8 8 8 8 8 8 8
8
DMACII
DMAC
Watchdog Timer (15 bits)
CAN Module: 2 channel
Intelligent I/O
Time Measurement: 8 channels (4)
Wave Generating: 16 channels (5)
Communication Functions:
Clock Synchronous Serial I/O, UART,
HDLC Data Processing
Timer (16 bits)
Timer A: 5 channels
Timer B: 6 channels
Three-Phase Motor Control Circuit
2
1
3
VOUT
GND
VIN
–
+
IC82 : RH5RE58AA-T1-FA
Voltage regulator
Vref
DSP
s103
s102
s101
s100 MICROPROCESSOR
Pull-up resistance 10 k-ohms
Destination detection for AD port
Ohm (R815)
V
A/D (5 V=255)
DEST, 139 pin
0.0 k
0 - 0.3
0 - 13
J
1.2 k
0.4 - 0.7
14 - 40
U, C
2.7 k
0.8 - 1.3
41 - 68
–
4.7 k
1.4 - 1.8
69 - 92
R
6.8 k
1.9 - 2.2
93 - 115
T
15.0 k
2.8 - 3.2
141 - 170
A
27.0 k
3.3 - 3.8
171 - 198
B
47.0 k
3.9 - 4.3
199 - 221
G, E
100.0 k
4.4 - 4.7
222 - 243
L
–
4.8 - 5.0
245 - 255
–
10.0 k
2.3 - 2.7
116 - 140
K
to OPERATION (1)_CB401
Page 98 F9
to MAIN (1)_W103
Page 99 H5
to MAIN (1)_W104
Page 99 H4
to FUNCTION (3)_W2501
R model
Page 97 G8
to FUNCTION (1)_CB206
Page 96 B8
to VIDEO_CB303
Page 100 D2
to HDMI_CB5
WRITING PORT
Page 101 L6
to DSP 1/3