Block Diagram Sr4000 - Marantz SR3000 Service Manual

BLOCK DIAGRAM SR4000

+12
+12sel
Tuner
7501
ECO5/ control
+12
Tuner 95
7503
CD
ATT
CDR/Tape ATT
VCR
ATT -12V
SAT ATT
+12
FRONT AV
ATT
7504
CDR/Tape
VCR
LOGIC
-12
-12sel
Record path
Source selctor
+12sel
control
7571
PHONO
RIAA
TV
ATT
LOGIC 7572-b
Source selctor
-12sel
control
VIDEO SELECTOR +5 +12
7801
7803
7802
DVD In MONITOR OUT
VCR In VCR OUT
SAT In
Video sel.
Logic control
control
Front AV In
Outlet
Mains
Voltage
selector
o o
Only/K1B
4-2
+5
L
L/R in R
MDM
7572-b
+12
C
DECODER
SUB
-12
SL
Downmix out
SR
MDM
control
TOS
6CH/DVD Input
Front L/R
ATT
C/SUB
ATT
SL/SR
ATT
+VH
+VL
6251
6252
6253
-VL
7907/7908
-12
-VH
3265
-30
6276
7257
7258
F1
F2
protection 2
6258/6259
6262/6263
6257
+12
6260
+9
0,33E 7644
0,33E
+5
6265
6268
+5D
6267
+5mute
6649
Amp Stby
+V
Electric
voltage
selector
Only /K1B
MFD
+9
7641
7651/7652
7657
BASS
IN VOL SPKR
MID
GAIN LOUD ATT
TREBLE
Sofac
LOGIC CONTROL
control
SDA1
+9
7642
Sub 7653/7654
7658
BASS
IN VOL SPKR
MID
GAIN LOUD ATT
C/Sub TREBLE
C/Sub
Sofac
LOGIC CONTROL
control
SDA1
+9
7643
7655/7656
7658
BASS
IN VOL SPKR
MID
GAIN LOUD ATT
TREBLE
Sofac
LOGIC CONTROL
control
SDA2
+5D
only /N1B
RDS Data/Clk
7415
RDS DECODER
7404
RDS Info
Tuner
Stereo/Clock/Data/CE
control
SSCE
Source selctor SSCLK
SSData
control
Reset
MDM SCL/SDA
Request
control
SDA1
Sofac SCL
SDA2
control
Headphone
sense
SDA
Video sel.
control
SCL
protection1,2
Amp Stby
MFD
1421
Menu navigator
1422
Source selector
encoder
-30
7413
F1
F2
4-2
+12
7621/7622
Headphone
Mute
1424
7601
Headphone
+5mute
ON
-12
MUTE
+12
7661
Center pre-out
Mute
1525
+5mute
7660-a
MUTE
7660-b 7662
Subwoofer pre-out
Mute
1550
+5mute
-12
MUTE
Amp-ON
Mute
+5D
control
Amp-ON
Shift register
7411/7412
+5D
CLK
Eeprom
DATA
+5D
Led drive
+5D
µP
Reset
+5D
IR Eye
7403
Key Matrix
1423
Volume control
Current +5D
buffer
-30
7416/7417/7418
D i s p l a y
+VH
+VL
+VP
3301
7302
L
+
Left
-
+
R
Right
-
Amp-ON
C
+
Center
-
PTC
hst
-VP 3328
+VL -VL
-VH
3901
+VP
7901
SL
+
Surround
-
Left
Amp-ON
SR
Surround
+
Right
-
hst
PTC
protection 1
-VP
3915
7405
-VL
+5
7411/7412
11x
7409
+5D
Remote control
RC5
1541
7419/7421
MDI 04-06-99