Block Diagram - Onkyo DR-645(S)/(B) Service Manual

Block Diagram

Foryou pick up
DM-06BXLX-L2
DVD Loader
Door Detect
DVD DOOR DET
COAXIAL
AUX2
IPOD DIN9
A5V
FM
Si4731
OR ECO6
FM Antenna 75OHM
A5V
DAB/5.1
AUX1
M5V
Loader motor driver
CD5954
M5V
Open/Close Driver
M3.3V
SDRAM
M12L64164A-7T
M3.3V
FLASH
2M * 8 bits
MX29LV160
M3.3V
SERIAL EEPROM
24C02
M3.3V
M3.3V
MASTER
Buffer
I2S SPDIF
74LVC2G04 SPDIF in
MI2C
CS8416
A5V
Audio Switch
74HC4052D
FM L,R
MCU I2C
MCU5V
MCU5V
RTC EEPROM
PCM8563 24C02
IR
MAIN BOARD
MCU5V
VFD Display
KEY
IR STO-16T202
USB
5-1
M3.3V M1.8V
Main chipset
SLAVE
A12V
FL&FR
AUDIO PROCESS
PT2313
SL&SR
A12V uA78M12
12V
MCU5V 5V
M3.3V
HP AMP
MPEG I2C BUS PT2309
MCU
USB ON
M1.8V
ECO POWER
R5R0C028
STANDBY
M5V
MUTE
ECO_POWER
VF1
VFD
MCU5V
VF2
POWER
-27V
SUPPLY
27V MCU5V
VFD Driver
PT16314
VF1 VF2
VOL
HEADPHONE
YUV
HDMI
ESD REJECTOR
COAXIAL OUT
OPTICAL INPUT
AV
4 Ohm 50W at 10%
POWER AMP
TDA8922
STANDBY 4 Ohm 50W at 10%
772
AMP POWER
MPEG ON
FILTER
AMC1117
3.3V
DC TO DC DVD POWER
AMC1117
FILTER
1.8V
AP1501
MCU POWER
MCU5V
7805
FILTER
DISPLAY BOARD
5-1
POWER
SWITCH
AC220