Yamaha YHT-S300, Service Manual

Page: 82 / 103

A
1
2
3
4
5
6
7
8
9
10
B C D E F G H I J K L M N
SR-300/NS-BR300/NS-P705/NS-B380
82
MAIN 3/3
★
All voltages are measured with a 10MΩ/V DC electronic voltmeter.
★
Components having special characteristics are marked ⚠ and must be replaced
with parts having specifications equal to those originally installed.
★ Schematic diagram is subject to change without notice.
● 電圧は、内部抵抗 10MΩの電圧計で測定したものです。
● ⚠印のある部品は、安全性確保部品を示しています。部品の交換が必要な場合、
パーツリストに記載されている部品を使用してください。
● 本回路図は標準回路図です。改良のため予告なく変更することがございます。
IC316
IC315
CB307
CB308
CB309
CB310
IC319
IC317
IC317
CB311
3.3
0
0
0
0
0
3.4
3.4
3.4
3.4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1.8
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.3
3.3
3.3
0.6
1.8
0
0
0
0
0.2
3.3
-32.2
0
0
0
0
3.4
3.4
3.4
5.0
5.0
12.3
0
7.0
3.4
12.3
-32.2
3.4
3.3
3.4
0
0
1.7
3.4
3.4
3.4
0.2
3.4
3.4
3.4
3.4 3.4
3.4
3.4
3.4 1.3
2.4
3.4 3.4
1.7
1.7
3.3
3.3
0
0
0
0 0 0
0
0 0
0
3.3 3.3
0
1.6
2.5
2.5
3.4 3.4 3.4
3.4
3.4
3.4 3.4
3.4
3.4
3.4
1.8
3.4
3.4
3.3 0 0
0
0 0
0
0
0
0
0
0
0
0
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
2.5
3.3
3.4
3.4
1.7
1.8
0
0
0
0
0
0
3.4
3.4
3.4
3.4
3.4
3.4
3.4
1.1
3.4
3.4
3.4
3.4
0.6
1.8
1.8
1.7
1.7
1.7
1.7
1.3
3.3
3.4
3.4
3.2
0
1.1
0.4
1.0
1.0
3.3
1.7
0
1.7
1.7
1.7
3.4 3.3
3.4
3.4 3.3
3.4
3.4
3.3
3.4
0.2 0.2
3.4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1.8
1.7
3.4
3.4
3.4
3.4
2.5
2.5
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.3
3.3
3.4 3.3
3.3
3.4
POINT C XL303 (Pin 20 of IC316)
C
D
1 IC316
(+3.3M)
IC316
(/RESET)
2
POWER ON POWER ON
1 IC316
(+3.3M)
IC316
(/RESET)
2
POWER OFF
POINT D 1 / IC316 (+3.3M), 2 / IC316 (/RESET)
1 2
: LE25LA322M-TLM-E
32 k-bit serial SPI EEPROM
SERIAL INTERFACE
Y ·DECODER
1
2
3
4 VSS
WP#
SO
CS#
SI
SCK
HOLD#
VDD 8
7
6
5
X ·
DECODER
EEPROM
Cell Array
CONTROL
LOGIC
I/O BUFFERS
and
DATA LATCHES
ADDRESS
BUFFERS
and
LATCHES
CS# SCK SI SO WP# HOLD#
IC316 : M3087BFKBGP
Microprocessor
Port P0 Port P1 Port P2 Port P3 Port P4 Port P5 Port P6
Port P7
Port P14 Port P15 Port P11 Port P12
Port P10
Port P9
Port 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.
3.The supply voltage of M32C/84T (High-reliability version) must be VCC1=VCC2.
FLG
INTB
ISP
USP
PC
SVF
SVP
VCT
Multiplier
M32C/80 series microprocessor 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:
5-channel
CRC Calculation Circuit (CCITT):
X16+X12+X5+1
X/Y Converter:
16-bit x 16-bit
D/A Converter:
8-bit x 2-channel
Peripheral Functions
<
V CC2
(3) > <
V CC1
(3) >
<
V
CC1
(3) >
ROM
RAM
Memory
<
V CC1
(3) > <
V
CC2
(3)
>
7 8 5 8 8
(Note 1)
8
8
7
8 8 8 8 8 8 8
8
DMACII
DMAC
Watchdog Timer (15-bit)
CAN Module: 1-channel
Intelligent I/O
Time Measurement: 8-channel
Waveform Generating: 8-channel
Communication Functions:
Clock Synchronous Serial I/O, UART,
HDLC Data Processing
Timer (16-bit)
Timer A: 5-channel
Timer B: 6-channel
Three-Phase Motor Control Circuit
1
2
3
5 4
7
6
8 1. A OUTPUT
2. A-INPUT
3. A+INPUT
4. GND
5. B+INPUT
6. B-INPUT
7. B OUTPUT
8. V+
IC317 : NJM2904M (TE3)
Single supply dual operational amplifier
A
B
MICROPROCESSOR
EEPROM
To MAIN 1/3
To MAIN 2/3
To MAIN 2/3
To MAIN 2/3
To MAIN 2/3
to INPUT_CB604
Page 79 L6
to POWER (2)_CB953
Page 84 D10
to POWER (2)_CB954
Page 84
G10
to POWER (1)_CB707
Page 83 K5
Writing port
to HDMI_CB6
Page 85 N6
Ohm 0 + 6.8 k + 22 k
V 0 – 0.2 1.2 – 1.5 2.3 – 2.6
A/D value
(3.3 V=255)
0 – 15 95 – 115 180 – 200
KEY1 (127 pin) VOLUME - INPUT
Key destination for A/D port
Key input (A/D) pull-up resistance 10 k-ohms
DOCK type
DOCK
(Bluetooth)
DOCK (iPod) No connect
Ohm 0.56 k 10.0 k –
V 0.1 – 0.3 1.6 – 1.8 3.3
ID_DOCK
(133 pin)
5 – 25 120 – 140 255
DOCK detection for AD port (IC316 Microprocessor pin no. 133)
Pull-up resistance 10 k-ohms