Onkyo TX-NR901 Service Manual page 91

A
MAIN MICROPROCESSOR-CONNECTION DIAGRAM
Q6701,Q6702
VOLTAGE
DETECTOR
T
1
Q605
MAL
D/A
CONVERTER
IT
WM8716
2
DSP1HDOUT
100
VCC
99
VREF
98
VOLH
97
VSS
96
DSP1GP10
95
DSP1GP9
94
CDTO
93
VLSTB
92
3
VPDA
91
VPCL
90
AFCL
89
AFDA
88
AFSTB
87
~STEREO
86
~SD
85
TUMUT
84
PLLCE
83
APOWER
82
SPRLF
81
4
Q2901
VIDEO B
RELAY SW
Q2911 12V
TRIGGER SW
5
Q221 12V
TRIGGER SW
Q223 12V
TRIGGER SW
B
RL6902
RL6901
Q6901
+/-B
RELAY
SW
POWER AMP.
MIX OUTPUT
RL6603
B
12V TRIGGER
OUTPUT
Shows a left channel only.
LEFT CH.
PRE
Q4600 Q4610 OUTPUT
RN1441
RN1441 RN1441
SURROUND
BACK PRE
OUTPUT
Q4605 Q4615
RN1441 RN1441
HP
TERMINAL
Q4812 Q4814
RN1441
RN1441
ZONE 2
LINE OUT
Q3412 Q3410
RN1441 RN1441
TUNER
PACK
RL6600
RL6602
Q231
F/C CH
SP
RELAY SW
RL901
Q921
POWER
RL6605
RELAY
SW
ZONE2
RL6603
Q232
SB/ZONE 2
A
SP
RELAY SW
C
Shows a left channel only.
CENTER/SUB
WOOFER PRE
Q4603 Q4613
Q4602 Q4612 OUTPUT
RN1441 RN1441
Q4200
FRONT CHANNEL
ELECTRONIC
VOLUME
TC94A07F
Q4201
CENTER/SUBWOOFER
CHANNELS
ELECTRONIC
VOLUME
TC94A07F
Q4202 ZONE 2/
SURROUND CHANNEL
ELECTRONIC
VOLUME
TC94A07F
Q4203
SURROUND BACK
CHANNEL
ELECTRONIC
VOLUME
TC94A07F
Q3100
SOURCE
SELECTOR
SWITCH
TC9273F-017
Q3300
SOURCE
SELECTOR
SWITCH
TC9274AN-008
Q4100
SURROUND
SELECTOR
SWITCH
TC9163AF
Q4101
SURROUND
SELECTOR
SWITCH
TC9164AF
TX-NR901
D
SURROUND
LEFT CH.
PRE
OUTPUT
RN1441