Onkyo TX-SR702 Service Manual page 67

A
MICROPROCESSOR-CONNECTION DIAGRAM
1
S7501,S7502
VOLUME
2
FROM POWER
AMP. OUTPUT
THERMAL <--
102
-->
~SYSOUT 101
RDSSIG <--
100
RDSDAT <--
99
~IRABUS/~RDSCLK <--
98
~IRIN <--
97
<--
SYSIN 96
BAND <--
95
INIT1 <--
94
INIT2 <--
93
INIT3 <--
92
<--
INIT4 91
INIT5 <--
90
INIT6 <--
89
INIT7 <--
88
3 <--
Vss 87
-->
VPOWER 86
Vcc2 <--
85
627FHPGP ~FANH -->
84
~FANCTR -->
83
SBZ2MUT -->
82
-->
Z2LPMUT 81
SPRLSB -->
80
SPRLZ2 -->
79
SPRLCS -->
78
SPRLF -->
77
-->
APOWER 76
AMUT -->
75
TUMUT -->
74
~SD <--
73
~STEREO <--
72
-->
PLLCLK 71
~PLLSDI <--
70
PLLSDO -->
69
PLLCE -->
68
VLTNDAT -->
67
-->
VLTNCLK 66
VLTNSTB -->
65
4
5
Q305 REC Q421 ZONE 2
VOLUME
SELECTOR
TC9162 TONE BD3814
B
RL7701
HP
RELAY
-
Q6703
GATE
CIRCUIT
Q6701,2
DC DET.
European model
R6380,1
THERMO DET
Q710 RDS Q703
DECODER BU1924 BUFFER
INITIALIZING
TUNER
PACK
RL901
POWER SW RELAY
Q921
16
16
Q653 Q654
2CH
2CH
ADC ADC
CS5333
CS5333
C
+
Q7701
Q7584
CURRENT Q6901
DET. BIAS
SELECT SW
RI IN/OUT
Q991 FAN CIRCUIT
SWITCH
Q992
Q302 SOURCE
SELECTOR/VOLUME
TONE
NJW1157
SPRLSB
SPRLZ2
SPRLCS
SPRLF
TX-SR702/E
Q7583
Q7582
Q7581
MUTING
SWITCH
Q401
Q402
Q403
Q404
RL6901
RL6902
Q405
PURE AUDIO
POWER
Q407
SUPPLY
Q409
Q907
PURE AUDIO
+B SW
FAN DRIVE
CIRCUIT Q411
Q413
Q415
Q427
Q429
Q431
Q432
RL6805
Q6603
RL6807
Q6604
RL6602,RL6803
Q6602
RL6600
Q6601
D
FL
FR
SL
Q406
SR
Q408
SBL
Q410
SBR
Q412
CT
Q414
Q416
SW
ZONE2
PREOUT
ZONE2
SW