Onkyo R-801A Service Manual

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R-801A
MICROPROCESSOR CONNECTION DIAGRAM
R-801A
A
1
2
3
4
BCDE
Volume
motor
Q702
TA7291S
Volume motor drive
+5V
Q381
TC9162AF
Acoustic switch
Q901
Relay drive
RL901
Power supply
relay
Q362.Q462
Muting drive
Muting
Q705
HNA-09SS27T
FL. tube
Q703
System reset
Q351
TC9164AF
Selector
Initializing
MEMORY
STANDBY/ ON
DISPLAY
MODE
INPUT
ACOUSTIC PRESENCE
1K 820 470 390
+5V
+5V
T1
TFCE1J114A or
ENG04501QR
Tuner pack
Power failure
detection
P781
RI terminal
Q706
Buffer
U701
Remote sensor
+5V
D708
ACOUSTIC
PRESENCE
LED
S701
Input selector
switch
X701
Crystal oscillator
Q701
Main microprocessor
MPD78045FGF-133-3B9
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41
P5 P4 P3 P2 P1 JOGA JOGB VDD APLED SYSOUT IC REMIN SYSIN POFF RDSSCK RDSDATA RDSSIG STEREO
3G 4G 5G 6G 7G 8G 9G VDD VOLUP VOLDOWN STB POWER INPMUT DATA RESET ESAVELED AVSS CLK SECRELAY
SIGNAL
AREA
K1
K0
AVDD
AVREF
VSS
X1
X2
TUMUT
PLLCE
PLLDATA
PLLCLK
SD
2G
1G
P17
P16
P15
P14
P13
P12
VLOAD
P11
P10
P9
P8
P7
P6

Onkyo R-801A Specifications

General

Brand	Onkyo
Model	R-801A
Category	Amplifier
Language	English