Marantz SR-3000, Service Manual

Page: 13 / 77

4-1 4-1
+5Vp
+5V
+12V
protection 2
F2
F1
-30V
-VH
-VL
-12V
+VL
+VH
o o
Key Matrix
Eeprom
IR Eye
Volume control
Source selector
encoder
Menu navigator
D i s p l a y
Left
Right
Center
Surround
Right
ECO5/
Tuner 95
Record path
CLK
DATA
+5Vp
Reset
+9V
F1
F2
ATT
ATT
ATT
ATT
CD
CDR/TAPE
VCR
TV
CDR/Tape
VCR
LOGIC
L/R
DPL
DECODER
IN
GAIN VOL
LOUD
BASS
MID
TREBLE
SPKR
ATT
LOGIC CONTROL
IN
GAIN VOL
LOUD
BASS
MID
TREBLE
SPKR
ATT
LOGIC CONTROL
L
R
IN
GAIN VOL
LOUD
BASS
MID
TREBLE
SPKR
ATT
LOGIC CONTROL
C
SUB
S
ATT
ATT
ATT
Front L/R
C/SUB
SL/SR
MUTE
L
R
+
-
+
-
+VH
MUTE
MUTE
+
-
+
-
Surround
Left
+
-
C
SL
SR
Stereo/Clock/Data/CE
Tuner
control
RDS DECODER
Source selctor
control
SSCE
SSCLK
SSData
DPL
control
Sofac
control
SDA1
SCL
SDA2
Headphone
sense
Source selctor
control
Tuner
control
DPL
control
Sofac
control
Sofac
control
Sofac
control
Mute
control
Amp-ON
Amp-ON
Amp-ON
Amp-ON
0,33E
Mains
MFD
+V
AMP STBY
BLOCK DIAGRAM SR3000
+5Vp
+5Vp
+5Vp
Outlet
Current
buffer +5Vp
-30V
-30V
RDS Info
RDS Data/Clk
-VH
+VL
-VL
6CH/DVD Input
+5Vmute
+5Vmute
+5Vmute
+9V
+9V
+9V
+9V
+12V
+12V
+12V
-12V
-12V
only/N1B
Shift register
+5Vp
MFD
Relay
µ
P
Reset
SCL/SDA
Request
protection1,2
SDA2
SDA1
SDA1
protection 1
Subwoofer pre-out
-12V
Mute
Headphone
Headphone
ON
+12V
Mute
6274
6275
1258
Sub
C/Sub
C/Sub
+5Vmute
6649
ATT
FRONT AV
DVD In
VCR In
TV In
Logic control
7803
Video sel.
control
VCR OUT
MONITOR OUT
VIDEO SELECTOR
+5 +12
Front AV In
7801
7802
hst
PTC
hst
PTC
RC5
+5D
Remote control
7419/7421
1541
7404
1421
1422
7415
7414
1423
7403
7409
7405
6267
6265
6268
6257
6261 6260
6258/6259
6262/6263
6276
7257
7258
7907/7908
6252
6253
7503
7501
7901
7301
7621/7622
1424
7601
7662
7660-2
1550
7412
7655/7656
7658
7653/7654
7658
7651/7652
7657
7641
7642
7643
7905
7416/7417/7418
MDI 04-06-99
3301
3328
3901
3915