Yamaha RX-V1065 Service Manual page 132

A B C
RX-V1065/HTR-6280/AX-V1065
GUI 2/2
1
2
3
IC550
to GUI 1/2
USB IN
4
5
0
3.4
0
3.3
3.4
3.4
0
3.4
0
1.9
6
3.4
0
3.4
0
0
1.9
3.4
4.0
3.3
7
8
9
POINT I XL550 (Pin 11 of IC551)
10
132
D E F
3.4
0
USB HOST
3.4
No replacement part available. 3.4
3.4
サービス部品供給なし 3.4
0
0
3.4
0
0
0
0
IC551
0
0
1.9
0
3.4
3.4
0
0
0
0
0
0
I
0
3.4
0
4.3
5.1
0
4.0
5.1
IC552
Page 124 K5
to OPERATION (5)_W4407
G H I
IC553
J K L
IC551: ISP1760BE
Embedded hi-speed USB host controller
37 to 39, 41 to 43,
45 to 47, 49, 51,
52, 54, 56 to 58,
60 to 62, 64 to 66,
68 to 70, 72 to 74,
76 to 78, 80
DATA [15:0]/DATA [31:0]
82, 84, 86, 87,
89, 91, to 93,
95 to 98,
100 to 103, 105
A[17:1]
CS_N 106
RD_N 107
WR_N 108
IRQ 112
DWEQ 114
DACK 116
USB FULL-SPEED AND LOW-SPEED DATA PATH
PORT ROUTING CONTROL LOGIC + HOST AND HUB PORT STATUS
HI-SPEED
USB ATX1
16 15 20 19 18 21 127
RREF1 DP1 DM1
GND GNDA
(RREF1)
PSW1_N
IC552: R5523N001A-TR-F
High side switch IC
V IN 4
EN 1
★ 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 ● 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、
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。
M N
VCC(I/O)
10, 40, 48, 59, 67,
75, 83, 94, 104, 115 ISP1760BE
11
XTAL1
12
XTAL2
HC PTD MEMORY PLL
RISC PROCESSOR 13
(3 kB) CLKIN
16-bit
INTERFAC: 30 MHz
or
32-bit HC PAYLOAD 60 MHz
MEMORY MEMORY (60 kB)
MANAGEMENT
UNIT
17 122
+ RESET_N
GLOBAL CONTROL
INTERRUPT AND POWER
CONTROL 119 SUSPEND/
MANAGEMENT
+ WAKEUP_N
MEMORY
SLAVE DMA
CONTROLLER ARBITER
+ AND FIFO POWER-ON RESET 110
BAT_ON_N
AND V BAT ON
HARDWARE
CONFIGURATION
5, 50,
REGISTERS
85, 118
5 V-TO-1.8 V REG1V8
EHCI AND VOLTAGE 6, 7
OPERATIONAL REGULATOR VCC(5V0)
REGISTERS
TRANSACTION
TRANSLATOR 5 V-TO-3.3 V
PIE
AND RAM VOLTAGE 9
REG3V3
REGULATOR
USB HIGH-SPEED DATA PATH
DIGITAL
AND ANALOG 2
OVERCURRENT REF5V
DETECTION
8
GND(OSC)
4, 17, 24
HI-SPEED HI-SPEED
USB ATX2 USB ATX3 31, 123
GNDA
53, 88, 121
GNDC
14, 36, 44, 55, 63,
71, 79, 90, 99, 109
23 22 27 26 25 28 128 30 29 34 33 32 35 1
004aaa435
RREF2 DP2 DM2 RREF3 DP3 DM3 GNDD
OC1_N GND GNDA OC2_N GND GNDA OC3_N
(RREF2) (RREF3)
PSW2_N PSW3_N
5 V OUT
GATE CURRENT
CONTROL LIMIT
FLAG
DELAY
3 FLG
UVLO
THERMAL
SHUTDOWN
2
GND