Marantz NR1200, Service Manual

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SCH06 CPU LEVEL CHG
STBY POWER ANALOG AUDIO DIGITAL AUDIO TMDS SIGNAL GND LINE POWER- LINE POWER+ LINE
S
TBY
3.
3V
VEXP
_O
E
VEXP
_O
E
R
113
6
33
K
H/
P
_R
L
C
121
9
10
N
-K
-060
3
R
111
5
O
PE
N
DCD
E
T3
C
122
4
10
N
-K
-060
3
R
112
4
10
0
H
P
D
3
H
P
D
2
H
P
D
1
H
IN
SE
LC
H
IN
SE
LB
H
IN
SE
LA
R
113
9
O
PE
N
R
111
9
12K
-160
8
H
P
D
4
C
122
2
10
N
-K
-060
3
R
112
0
10
0
R
114
1
O
PE
N
R
112
3
120
K
VEXP
_D
A
TA
H
P
D
1
H
P
D
3
VEXP
_S
TB
H
IN
SE
LA
M
N
864787_
R
ST
H
IN
SE
LC
R
113
4
3K
3
VEXP
_S
TB
SP
R
L_
FB
M
_D
AX
_L
E
D
SP
R
L_
FA
M
N
864787_
R
ST
C
E
C
_O
U
T
C
E
C
_C
O
M
C
E
C
_I
N
VEXP
_C
LK
VEXP
_O
E
TE
M
P
_SE
N
S
O
R
TH
E
R
M
AL_
B
H
_P
_D
E
T
SW
M
3.
3V
D
G
N
D
SP
R
L_
FB
DCD
E
T3
DIR
E
C
T_L
E
D
TH
E
R
M
AL
D
ET
A
TH
E
R
M
AL
D
ET
E
H
_P
_D
E
T
AS
O
D
E
T
DC
_D
ET
_AS
O
OPE
N
R
110
3
TH
E
R
M
AL_
E
R
110
6
22
K
TH
E
R
M
AL_
A
TH
E
R
M
AL
D
ET
B
R1111 2M2
CEC_OUT
VEXP_CLK
DGND
C
122
7
100
N
-K
-060
3
CEC_IN
H
P
D
5
R
113
0
4K
7
C
122
8
100
N
-K
-060
3
220K
R1133
R1094
10K
C1212
OPEN-1005
S
TBY
5V
C
123
1
100
N
-K
-060
3
10
N
-K
-060
3
C
121
8
R
111
2
100
K
R
111
3
10
0
C
121
3
100
N
-K
-060
3
R
111
4
100
K
C
121
4
100
N
-K
-060
3
R
113
7
18
K
DCD
E
T4
R
110
8
3K
9
C
122
1
10
N
-K
-060
3
R
111
8
10
0
R
114
0
O
PE
N
R
112
1
120
K
H
P
D
5
C
122
3
10
N
-K
-060
3
R
112
2
10
0
VEXP
_S
TB
VEXP
_C
LK
H
P
D
4
H
P
D
2
Q105
8
2S
C
305
2
R
113
5
100
K
R1098
100K
C
121
7
220
P
-K
-060
3
A
DC
_R
ST
M
N
864788_
R
ST
H
IN
SE
LB
R
109
7
1K
2
100
N
-K
-060
3
C
121
6
DIR
E
C
T_L
E
D
VEXP
_O
E
H/
P
_R
L
M
N
864788_
R
ST
VEXP
_D
A
TA
TH
E
R
M
AL_
E
TH
E
R
M
AL_
A
VEXP
_S
TB
DCD
E
T4
2SC3052
Q1035
M
3.
3V
DC
_D
ET
_AS
O
Q
103
8
ISA1530A
C
1
SP
R
L_
FA
22
K
R
109
9
Q
102
7
2S
C
305
2
TH
E
R
M
AL
D
ET
B
AS
O
D
E
T
M
_D
AX
_L
E
D
R1142
3K9
R
110
9
10
K
Q
103
2
2S
C
305
2
R
110
2
22
K
R
110
4
22
K
OPE
N
R
110
5
TH
E
R
M
AL_
B
Q
103
0
2S
C
305
2
A
DC
_R
ST
OPE
N
R
110
7
Q
103
1
2S
C
305
2
TH
E
R
M
AL
D
ET
E
TH
E
R
M
AL
D
ET
A
M3.3V
M3.3V
M3.3V
SWM3.3V
STBY3.3V
CEC_COM
R
113
1
47
K
R
113
2
27
K
Q1057
2SD2114K
TO CPU
Q
103
6
2S
C
305
2
DC_PROT
SWM3.3V
STBY5V
DGND
FROM
D.SUPPLY
D1004
LBAS16HT1G
Q105
9
2S
C
305
2
Q
102
6
2S
C
305
2
Q
103
7
ISA1530A
C
1
TO DIGITAL CNT
Q
102
9
2S
C
305
2
TO
MN864788
TO
MAIN DAC
DIGITAL 5/11
TO
MN864787
(CPU LEVEL CHG)
4A
TO A4
8A
TO A8
6C
TO C6
D1
TO 1D
D2
TO 2D
D3
TO 3D
Before Servicing
This Unit
Electrical
Mechanical
Repair Information
Updating
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