Block Diagrams - Yamaha RX-V765 Service Manual

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RX-V765/HTR-6270/AX-V765

■ BLOCK DIAGRAMS

1
→
MAIN
SCHEMATIC DIAGRAM
AV-1
OPTICAL
IC152
AV-2
COAXIAL
2
AV-3
COAXIAL
AV-4
OPTICAL
AV-5
AV-6
AV-OUT
3
AUDIO1
AUDIO2
8ch IN
FL/FR
8ch IN
SL/SR
8ch IN
SBL/SBR
8ch IN
C/SW
4
AUDIO OUT
ZONE2
5
→
OPERATION
SCHEMATIC DIAGRAM
(R, T, K, A, B, G, E, F, L, J models)
PHONO
V AUX (Front)
OPTIMIZER MIC
(U model)
SIRIUS
6
INPUT
AM/FM
TUNER
RDS/TUNER
(B, G, E, F models)
IC321
RDS_N_RST RDS
RDS_SCK
DECODER
RDS_RDY
RDS_MISO
20 22
7
XL321
→
4.332MHz
VIDEO
SCHEMATIC DIAGRAM
90
C D
ANALOG AUDIO Section Block Diagram
to DIGITAL AUDIO Section
68-71 53,54 90-97
60-63
72,73
56-59
76,77
64-67,78-83 36-43 49,50
46,47
Muting
77,78
MUTE_N_Z2
87
IC451
MICROPROCESSOR
DIGITAL
SCHEMATIC DIAGRAM
E F
AMP_OLV
DC_PRT
I_PRT
20,22
19,23
Tone Center Mix
Control LFE Mix
Center
16
SR L/R
8,10
7,11
2,100
SB L/R
3,99
SW
14
R2A15215FP
IC153
MUTE_F MUTE_C
MUTE_S MUTE_SB
124 98,125,126 92,99-101
82 HP Relay Control
70,73,75,76,80 SP Relay Control
89 MUTE_N_SW
97 PRY
IC20
SP_IMP
83
+B
4 AMP_LMT
Power Supply Control
-B
135,136 PS_PRT
20 22
XL20
20MHz
→
G H I
VIDEO
SCHEMATIC DIAGRAM
HP Relay
Control
Power Limit Detect
PHONES
RY341
DC Protection
RY342
FRONT L/R
I Protection
RY345
CENTER
FL/FR/C
RY344
SURROUND L/R
SL/SR
RY343
SURROUND BACK L/R
SBL/SBR
RY461
ZONE2 L/R
PRESENCE L/R
TMP
Protection
Heat sink
SP Relay
Control
FRONT L/R
SURROUND L/R
SURROUND BACK L/R
IC154
CENTER
SUBWOOFER 1
Muting
SUBWOOFER 2
RX-V765, HTR-6270 (F model), AX-V765
POWER TRANSFORMER
Power Supply Relay Control
PS_PRT
+12
PS_PRT
-12
to VIDEO P.C.B.
J
→
OPERATION
→
SCHEMATIC DIAGRAM