Yamaha RX-V565 Service Manual page 114

A B C
RX-V565/HTR-6250/AX-V565
DIGITAL 2/5
1
Page 118 E10
to OPERATION (1)_CB401
2
3
4
5
R201
RX-V565/AX-V565 2.2K
HTR-6250 3.9K
3.4
3.4
6
7
IC22
3.4
3.4
0.8 3.4
3.4 3.4
0 0
8
POINT B XL20 (Pin 20 of IC20)
9
10
★ All voltages are measured with a 10MΩ/V DC electronic voltmeter.
● 電圧は、内部抵抗 10MΩの電圧計で測定したものです。
★ Components having special characteristics are marked
and must be replaced ●
with parts having specifications equal to those originally installed. 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。
★ Schematic diagram is subject to change without notice.
● 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。
114
D E F
Page 120 K7 Page 121 K8 Page 124 I9
to MAIN (5)_CB157 to MAIN (1)_CB156 to VIDEO (3)_CB382
0
0
0
3.4
0
0
3.3
0
3.3
3.3
3.3 MICROPROCESSOR
3.4
0
0
IC20
3.4
3.4
0
1.5
3.4
0.7
1.2
0.8
3.4
0
0
3.4
3.4
3.4
1.2
1.1
0
0
0.4
0
3.3
B
3.4
3.4
0
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、
G H I
Page 123
to VIDEO (1)_CB349
3.4
3.4
0
0 3.4
3.4
3.4
IC21
3.4
1.2
0
3.3
3.3
3.4
3.3
0
3.4
0
0
0
3.3
3.3
3.4
3.4
0
0
3.3
0
3.3
3.3
3.3
0
0
0
3.4
2.5
2.5
0
3.4
0
3.4
3.4
3.4
3.4
3.4 3.3
0
to DIGITAL 3/5 to DIGITAL 4/5
J K L
G8
3.4
3.4
-12.0
3.4
3.4
-12.0
3.4
3.4
-12.0
3.4
3.4
-12.0
3.4
3.4
-12.0
CB27
CB26
Key detection for A/D port
Key input (A/D) pull-up resistance 10 k-ohms
Ohm 0 + 1.0k + 1.0k + 1.5k + 1.5k + 2.2k
V 0 – 0.15 0.15 – 0.42 0.43 – 0.70 0.71 – 0.97 0.98 – 1.24 1.25 – 1.53 1.54 – 1.84
A/D value
0 – 11 12 – 32 33 – 54 55 – 75 76 – 95 96 – 118 119 – 142
(3.3 V=255)
SCENE SCENE SCENE SCENE PROGRAM
KEY1 (133 pin) – –
RADIO CD TV BD/DVD
Ohm 0 + 1.0k + 1.0k + 1.5k + 1.8k + 2.2k
V 0 – 0.15 0.15 – 0.42 0.43 – 0.70 0.71 – 0.99 1.0 – 1.27 1.28 – 1.56 1.57 – 1.86
A/D value
0 – 11 12 – 32 33 – 54 55 – 77 78 – 98 99 – 120 121 – 143
(3.3 V=255)
PRESET PRESET CATEGORY <
KEY2 (134 pin) DIRECT STRAIGHT INFO MEMORY
< >
M N
to DIGITAL 5/5
IC21: R1172H331D-T1-F
Voltage regulator
V V
DD 4 5 OUT
Vref
Current Limit
CE 1 2 GND
Pin No. Symbol Description
1 CE Chip Enable Pin
2 GND Ground Pin
to DIGITAL 1/5 3 NC No Connection
4 V DD Input Pin
5 V OUT Output Pin of Voltage Regulator
IC22: LE25LA322M-TLM-E
32 k-bit serial SPI EEPROM
X ·
EEPROM
ADDRESS DECODER
Cell Array
BUFFERS
&
LATCHES
Y ·DECODER
CONTROL I/O BUFFERS
&
LOGIC
DATA LATCHES
SERIAL INTERFACE
CS# SCK SI SO WP# HOLD#
CS# 1 8 VDD
2 7
Writing port SO HOLD#
WP# 3 6 SCK
VSS 4 5 SI
IC20: M30878JBGP
Single chip 16/32-bit microprocessor
8 8 8 8 8 8 8
Port P0 Port P1 Port P2 Port P3 Port P4 Port P5 Port P6
< > < >
V CC2 V CC1
Peripheral Functions
A/D Converter: Clock Generation Circuit
1 circuit X - X
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:
(3)
Three-Phase Motor Control Circuit 7-channel DMAC
Watchdog Timer (15-bit) X/Y Converter: DMACII
16-bit x 16-bit
D/A Converter: CRC Calculation Circuit (CCITT):
8-bit x 2-channel CAN Module: 2-channel X 16 +X 12 +X 5 +1
M32C/80 series microprocessor core
Memory
Intelligent I/O R0H R0L FLG
ROM
(4) R1H R1L INTB
Time Measurement: 8-channel
Wave Generating: 16-channel (5) 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 < V >
CC1 CC2
Port P14 Port P15 Port P11 Port P12 Port P13
7 8 5 8 8
(Note 1)
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-channel available in the 100-pin package.
4. 6-channel available in the 100-pin package.
5. 10-channel available in the 100-pin package.
+ 3.3k + 4.7k + 22.0k + 33.0k
1.84 – 2.1 2.34 – 2.55 2.55 – 2.97
143 – 162 181 – 197 198 – 229
PROGRAM STANDBY/ TONE
> < ON CONTROL
+ 3.3k + 4.7k + 6.8k + 10.0k + 22.0k + 68.0k
1.86 – 2.14 2.14 – 2.4 2.4 – 2.65 2.66 – 2.91 2.92 – 3.17
144 – 165 166 – 185 186 – 205 206 – 225 226 – 245
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