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Block diagram
PLL
FM
TUNER
RF101
IC121
AM/FM DET
5
MW RF&OSC
AM
IC102
T111
CD L/R
TAPE P.B.
SOURCE SELECTOR
TAPE REC.
IC402
VCR P.B.
4
VCR REC.
TV SOUND
COAXIAL
SW
IN
IC621
3
OPTICAL
DIGITAL SIGNAL
SELECTOR
IN 1
PROCESSOR
IC611
IC612
SDRAM
2
1
A
DVD FRONT
IC451
CENTER
DVD REAR/
SUB WOOFER
SUB WOOFER
OUT
CN451
PLL CLK, PLL DATA, PLL CE,
TUNER L/R
CN411
TUNER L/R
DVD L/R
IC403
CN481
CN681
AMP.
IC609,610
IC652,662,682
DIGITAL SIGNAL
PROCESSOR
IC650,651,
CONTROLLER
661,690,691
IC631
IC671
IN
AD/DA CONVERTER
IC641
DSP CLK, DSP STATUS, DSP READY, DSP RESET
CN702
SYSTEM CONTROLLER
KEY
IC701
FL DISPLAY
D1701
B
C
MONITOR
DVD IN
SELECTOR
IC501
VCR REC
VCR P.B.
AV COMPU
LINK
COMPU
CN501
LINK -4
CN431
CN441
IC427
6CH MASTER
SIGNAL L/R
SELECTOR
VOLUME
IC423
IC428
VCR OUT
DSP OUT
CN402
Lch
AMP.
AMP.
Rch
Audio
Cch
amp.
IC601
RLch
RRch
RY LR1, RY S
RY LR2, RY C
POWER
D
MONITOR
SELECTOR
DVD
IC551
VCR REC
IC552
VCR PLAY
CN511
CN551
CN461
REAR
CENTER
IC421
IC422
FRONT
Q315
Q317
Q316
Q318
Q915
Q917
Q815
Q817
Q816
Q818
FW341
CN241
Q206~Q209
+23V
POWER
-SUPPLY
+5V
CIRCUIT
E
F
RX-7520VBK
Y
SELECTOR
MONITOR
PB
IC581
OUT
PR
IC582
Y
PB
DVD
PR
Y
PB
DBS/VCR
PR
Lch
Speaker 2
RY301
terminal
Rch
Lch
Speaker 1
RY302
terminal
Rch
Cch
RY303
Speaker
terminal
SLch
RY304
SRch
FW303
CN203
HP
RY203
RY202
Main
Q202
plug
G
2-1
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