Block Diagram - Yamaha RX-V420 Service Manual

A B
RX-V420/RX-V420RDS/HTR-5440/HTR-5440RDS/DSP-AX420
1
I BLOCK DIAGRAM (1/2)
See page E-57/J-53 (DSP)
COAXIAL
IC808A IC808B
CD
2
OPTICAL
DVD
D-TV/CBL
3
IC813A, 814A
ADL
IC813B, 814B
ADR
4
B, G ONLY
XL441 See page E-55/J51 (INPUT)
RDS
DECODER
SELECTOR
IC445
FM/AM
TUNER
5
AUX
(L/R)
CD
(L/R)
DV D
(L/R)
D-TV/CBL
(L/R)
MD/CD-R IN
(L/R)
VCR IN
6 (L/R)
VIDEO AUX
(L/R)
MD/TAPE OUT
(L/R)
VCR OUT
(L/R)
7
E-33/J-29
C D
XL801
1 2
IC801 YSS928
62
CXA 125
SIGNAL
CXDTA
9
DETECTOR
IC808C
OPTC 156
61
OPTD
154
60
59
5
14
DIR
CODEC SDIA
35
9
A/D
CONVERTER
IC812
AK4527
DSP CONTROL
from µ-COM
INPUT
IC444
DAL/DAR
3/5 1/7
BYL/BYR
6L/6R
IC441
IC442
INHIBIT
MAIN
6L/6R
(L/R)
6C
CENTER
SURROUND 6RL/6RR
(L/R)
6SW
SUBWOOFER
E F
See page E-55/J-51 (INPUT)
IC815A
SDOB1
3 + 1 C
6 27
–
IC815B
+ SW
5 7
28
–
CODEC
IC816A
SDOB2 D/A
5 + 7 L (DAL)
7 25
CONVERTER –
IC816B
IC812
3 + 1 R (DAR)
26
AK4527
–
IC817A
SDOB3 + 1 RL
3
8 23
–
IC817B
5 + 7 RR
24
–
4M
DRAM
IC802
+5D2
+3.3 IC804
+5D2
+2.5 IC803
See page E-56/J-52 (OPERATION)
IC443
IC443 IC446
IC731
L/R
3/5 1/7 3/5
1/7
90Hz
HPF
IC443 IC447
C. NONE
IC442
IC732A
C
C
3 1
6C
VR731
IC443
SW. NONE
IC442
SW
SW
6SW
IC443 IC733
RL/RR
RL/RR 3/5
1/7
6RL/6RR
IC732B
5 7
IC734
E-34/J-30
G H
T161 D163
D401
+25 Q371
D403
G
-25
Q372
D402
J221 J222
RY161
F162
See page E-58/J54 (MAIN)
PA : POWER AMP
IC771
IC502
TONE
L/R 7/1 Q448~451 LO/RO
5/3 BALANCE 6/4 8/2
CONTROL PA
BASS TREBLE VR773
VR771 VR772
MUTE
C C
Q445, 446 PA
Q20A/C
Q452, 453, RL/RR
PA
455, 456
Q18A/C
Q19A/C
RL/RR
SW
SUBWOOFER
SW
Q441, 443
I J
S12
Q161
PRY
MG
F1
F2
IC374 +5D
+10
G
IC373 +12A
IC371 +12B
G
IC372 -12
D221
-VP
D222
IMPEDANCE
SELECTOR
SW161 J223 J224
D371
+B
G
-B
D223
Q33
-VP
PHONES
+B
MAIN A
(L/R)
RY1 SW241
Q16A/C
-B
Q17A/C
MAIN B
(L/R)
SW241
+B
CENTER
RY3
-B
REAR
+B
(L/R)
RY2
-B
RELAY DRIVER
Q36, 106