Yamaha dsp-ax3800 Service Manual page 126

A B C
RX-V3800/DSP-AX3800
FUNCTION 1/4
1
To TUNER
2
CB401
(B, G, E models)
5.5
2.3 0
0.2 2.3 0
11.9 5.0 4.5
0
0 0.1
0
2.3
5.6
2.3
3 0
11.9
0
5.6 0
2.0 1.8
0
B-3
5.1
4
~ 0
CB402
Page 141 M6
to FL (5)_CB960
CB416
5
Page 141 L6
to FL (5)_CB972
CB403
6
Page 141 M7
to FL (3)_CB955
CB404
Page 141 L7
to FL (3)_CB952
7
8
to FUNCTION 2/4
FUNCTION (1)
9
Page 140
to FL (6)_W9501
# All voltages are measured with a 10MΩ/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.
10
126
D E F
IC403
3.1
0
0 0
0
0.1
0.1
0.1
4.9
5.0
5.0
0.1
MICROPROCESSOR
0.1
0.1
(MAIN)
0
0
5.1
5.1
IC402
0
0
0
4.9
0
0
4.5
4.9
5.1
5.1
1.1
1.1
0.4
1.4
5.1
1.7
5.1
0.1
0
5.1
B-2
1.4
4.9
0.4 0.4
4.9
0.2
0
5.1
5.0
4.5
IC407
4.9
5.1 5.1
8.3 5.8 5.8
0 3.7
5.1
4.2 5.1
0
0
M3 Page 132 I8
to POWER (4)_W1
C-1
1 2
POINT B-2 Pin 20 of IC402 POINT B-3 Pin 12 of IC401
G H
0
11.2
5.0
5.6
5.1
4.9
0.1
4.9
4.9
0.1
0
4.9
4.9
4.9
4.9
4.9
4.9
4.9
4.9
4.9
4.9
5.1
0
0
0
5.1
0 4.9
5.1
0
5.0
4.9
0
0.1
0.1
4.9 4.9
0.1
~
4.9
5.0
0
5.1
5.1
4.9 4.9
5.1
4.9
Page 132 E2 Page 142 B6 Page 132 H7
to POWER (3)_W9 to NET_CB601 to POWER (3)_CB18
POINT C-1 1 / Pin7, 2 / Pin8 of CB406
+5M 1 1
/RES 2 2
AC cable ON AC cable OFF AC cable ON
I J K
U, C, R, T, K, A, B, G, E, L models
0 0 JK401
REMOTE1
JK402
0 0
0
JK403
4.9
5.1 0
REMOTE2
JK404
CB412
5.0
5.1
-11.2
CB413
5.1
-11.2
5.1
-11.2
CB414
5.1
-11.2
5.1
-11.2
5.1
-11.2
3.3
0
0
IC405
0
5.1
5.0
-11.2
0
0
0
5.1
0
0
0 IC406
IC404, 406: SN74AHCT1G32DCKR
Single 2-input positive-OR gate
A
B
GND
Page 134 I2 Page 123 F1
to A-VIDEO_CB203 to DSP_CB504
IC405: SN74AHC1G08DCKR
2-input positive-AND gate
IC401: LC72722PM
RDS signal processor
1 5 6
VDDA 3 CLOCK 14 VDDD
PLL
RECOVERY
REFERENCE (57 kHz)
(1187.5 Hz)
VOLTAGE
VSSA 4 15 VSSD
VREF
IC407: RH5RE58AA-T1-FA
57 kHz DATA
MPX IN ANTIALIASING SMOOTHING
2 bpf 19 RDS-ID Voltage regulator
FILTER FILTER DECODER
(SCF)
DO 20
CL 21 18 SYNC V
RAM ERROR CORRECTION SYNC / EC IN
DI 22 CCB (24 BLOCK DATA) (SOFT DECISION) CONTROLLER 2
24 SYR
CE 23
CLK (4.332 MHz)
T1 7 MEMORY
CONTROL
T2 8 TEST SYNC SYNC
DETECT-1 DETECT-2
T3 9 OSC/DIVIDER
T4 10
11 16 17 13 12
L M N
IC403: LC709004A-TLM-E
I/O-expander for microcontroller
DIN 2 Serial/parallel converter/shift register 14
CLK# 3 15
19
CS#
4
RES# 21 I/O control/output register
port 0 I/O buffer port 1 I/O buffer
24 17 15 8
IC402: M3087BFKBGP
Microprocessor
1 5 Vcc
8 8 8 8 8 8 8
2
3 4 Y
Port P0 Port P1 Port P2 Port P3 Port P4 Port P5 Port P6
< (3) > < CC1 (3) >
V CC2 V
Peripheral Functions
A/D Converter: Clock Generation Circuit
X - X
1 circuit IN OUT
Timer (16-bit) Standard: 10 inputs X CIN - X COUT
Timer A: 5-channel (2)
Maximum: 34 inputs On-chip Oscillator
Timer B: 6-channel
PLL Frequency Synthesizer
UART/Clock Synchronous Serial I/O:
Three-Phase Motor Control Circuit 5-channel DMAC
Watchdog Timer (15-bit) X/Y Converter: DMACII
A 1 5 Vcc 16-bit x 16-bit
D/A Converter: CRC Calculation Circuit (CCITT):
B 2 8-bit x 2-channel CAN Module: 1-channel X 16 +X 12 +X 5 +1
GND 3 4 Y M32C/80 series microprocessor core
Memory
Intelligent I/O R0H R0L FLG
ROM
R1H R1L INTB
Time Measurement: 8-channel
Waveform Generating: 8-channel R2 ISP
Communication Functions:
R3 USP RAM
Clock Synchronous Serial I/O, UART,
HDLC Data Processing A0 PC
A1 SVF
FB SVP
Multiplier
SB VCT
V
OUT
< >
3 V (3) < V (3) >
CC1 CC2
Port P14 Port P15 Port P11 Port P12 Port P13
+
7 8 5 8 8
–
Vref (Note 1)
NOTES:
1. Ports P11 to P15 are provided in the 144-pin package only.
1
2. Included in the 144-pin package only.
GND 3.The supply voltage of M32C/84T (High-reliability version) must be V CC1 =V CC2 .
DOUT
VDD
VSS