Marantz PM-12 OSE, Service Manual

Page: 20 / 56

SCH12 SPK
All Ref.No. has been described in the parts list are four digits.
But there are less than four digits of printed Ref.No. on the PCB, and they have become four digits after the header by adding "0" in the parts list.
GND LINE POWER- LINE POWER+ LINE Rch SIGNAL Lch SIGNAL STBY POWER
FATAL
Normal:0V
DC detect:3.3V
FATAL
Normal :+18V
Abnormal: 0V
H : During Power On
From
SMPS
600
To NC500 L To NC500 R
from FCBS2 PWB N1953
R(+) R(-) L(+) L(-)
SCCPIND
(NC500 Overcurrent indication)
Normal :+3.3V
Overcurrent:0V
READY (NC500 Ready indication)
Ready/Not Ready:+3.3V/0V
AMPON (NC500 On/Off Control)
On/Off = 0V/3.3V
CLIP (NC500 Clip indication)
Normal :+3.3V
Clip :0V
DIP Detect
From Audio PWB
N3501
From Audio PWB
N3502
0V:NORMAL
0V:NORMAL
DC Detect/DC offset
Trigger
From
POWER PWB
N8701
Vsig Reg
8U-310230
SPK UNIT
Threshold level : 27V
Threshold level : 40V
B6001 61401001500A
S
1P
L=350
SRA
3-
SIN1.8 UL1430 A
WG18 OFC
-HV
-50 VDR
+65
-65
+20
-20
1
2
1
2
1
NC
2
NC
3
GND3
4 IN1+
5 IN1-
6 V-
7
OUT2
8
GND8
9 IN2+
10
IN2-
11
V+
12
OUT1
13
NC
14
NC
1
NC
2
NC
3
GND3
4 IN1+
5 IN1-
6 V-
7
OUT2
8
GND8
9 IN2+
10
IN2-
11
V+
12
OUT1
13
NC
14
NC
1
NC
2
NC
3
GND3
4 IN1+
5 IN1-
6 V-
7
OUT2
8
GND8
9 IN2+
10
IN2-
11
V+
12
OUT1
13
NC
14
NC
1
+HV
2
+HV
3
GND
4
GND
5
GND
6
GND
7
GND
8
GND
9
-HV
10
-HV
11
VD
R
12
NC
13
OUT
C
14
OUT
C
15
OUT
C
16
OUT
C
17
FBC
18
OUT
C
19
FBH
20
OUTH
21
OUTH
22
OUTH
23
OUTH
24
OUTH
25
-VSIG
26
+VSIG
27
S_GND
28
IOUT
29
INH
30
INC
31
OPTION
32
AMPON
33
CLIP
34
SCCPIND
35
REA
DY
36
FAT
AL
1
+HV
2
+HV
3
GND
4
GND
5
GND
6
GND
7
GND
8
GND
9
-HV
10
-HV
11
VD
R
12
NC
13
OUT
C
14
OUT
C
15
OUT
C
16
OUT
C
17
FBC
18
OUT
C
19
FBH
20
OUTH
21
OUTH
22
OUTH
23
OUTH
24
OUTH
25
-VSIG
26
+VSIG
27
S_GND
28
IOUT
29
INH
30
INC
31
OPTION
32
AMPON
33
CLIP
34
SCCPIND
35
REA
DY
36
FAT
AL
13 L_GND
12 +24VL
11 PROT_1
10
PRT_RST
9
NC
8
Time_Const1
7
D_GND
6 +3.3VD
5 FATAL
4 SCCPIND
3
READY
2
CLIP
1 AMP_ON
5
7 3
6
8 4
6
8 4
5
7 3
1 +12V
2 GND
3 -12V
4 NC
12 -VSIG
11 VDR
10 GND
9 GND
8 -HV
7 -HV
6 +VSIG
5 FATAL
4
GND
3
GND
2
+HV
1
+HV
1 R+
2 GND
3 R-
1 L+
2 GND
3 L-
STYLE-PIN
Z6502
NA2
4W
-K
S670
2
KRA1
02
S
Q6707
NA2
4W
-K
S670
1
L-GND
+12V
IOUT_L
3.3V
+12V
OPEN
U6601
IOUT_R
OPEN
C6601
3.3V
D-GND
OPEN
C6602
-HV
D-GND
D-GND
3.3V
D-GND
D-GND
D-GND D-GND
+12V
-12V
+HV
LM319_SOP-14
U6603
3.3V -12V
+12V
OPEN
R68
10
3.3V
3.3V
3.3V
D-GND
D-GND
KRC102S
Q6802
KRC102S
Q6801
KT
A1504S
Q6803
D-GND
D-GND
KRC102S
Q6804
D-GND
KRC102S
Q6806
KRC10
2S
Q6808
D-GND
KRA104S
Q6807
D-GND
+HV -HV
OPEN
Z6501
OPEN
C6614
OPEN
C6615
C6805
OPEN
OPEN
U6602
N6001
N6002
GND1
OPEN D
600
2
OPEN
Q6002
OPEN
D
600
1
OPEN
Q6001
GND1
DTC114EK
Q6004
GND1
DTC114EK
Q6003
13P-PH
N6501
OPEN
R60
05
GND1
OPEN
R60
06
GND1
Z6004
Z6002
C6002
0.01
Z6003 Z6001
C6001
0.01
+HV
-HV
GND1
GND1 GND1
IOUT_R
OPEN
R60
01
OPEN
R60
02
IOUT_L
C6902 47/25
C6903
220/25
C6901
47/25
C6904
220/25
+15V
R6908
1
R6907
1
C6906
220/25
C6905
220/25
-15V
DET
D-GND
D-GND
KRC10
2S
Q6805
PRT_RST
PRT_RST
R+ L+
KT
A1504S
Q6705
D-GND
Q6704
KTC3875S
S6702
C6705
OPEN
S6702
Q6701
KTC3875S
Q6702
KTC3875S
Q6703
KTC3875S
KRC102S
Q6706
3.3V
+24VL
L-GND
3.3V
PROT1
PROT1
L+
R+
D-GND
D-GND
DET
3.3V
KRA
102S
Q6501
D-GND
S6701
GND1
Time_Const1
C6501
10/35
L-GND
Time_Const1
GND-TERMINAL
Z6701
D-GND
4P-EH(IM)
N6601
+12V
-12V
D-GND
+24VL
GND-TERMINAL
Z6101
GND-TERMINAL
Z6102
GND-TERMINAL
Z6103
3.3V
+15V -15V -15V +15V
Time_Const2
OPEN
Q6709
3.3V
Time_Const2
B6001
1P_L=120_SRA3-SIN1.8
OPEN
R65
04
GND1
C6702
0.1
C6701
0.1
OPEN
Z6504
22/16
C6804
C6703 220/25
C6704 220/25
10
R6701
10
R6702
D-GND
R6634
27K
0 R6502
OPEN R6503
0
R6501
R6628
0
R6631
0
0
R6711
0
R60
15
0
R60
13
0
R60
11
0
R60
09
0
R60
07
OPEN
R60
03
0
R60
16
0
R60
14
0
R60
12
0
R60
10
0
R60
08
OPEN
R60
04
0
R6811
OPEN
R6637
OPEN
R6638
0
R66
39
0
R67
10
R6629
47K
R6602
OPEN
R6626
47K
R6601
OPEN
R6617
OPEN
R6605
OPEN
R6618
OPEN
R6604
OPEN
R6606
OPEN
R6603
OPEN
100K
R68
01
100K
R6805
100K
R68
04
100K
R6802
OPEN
R60
18
OPEN
R60
17
R6607
OPEN
10K
R6807
R6619
OPEN
R6620
OPEN
R6709
10K
R6608
OPEN
R6625
15K
R6609
OPEN
R6610
OPEN
R6611
OPEN
R6612
OPEN
R6621 OPEN
R6622 OPEN
R6623
22K
R6632
22K
22K
R68
08
R6616
OPEN
R6615
OPEN
R6624
27K
R6627 4.7
K
R6630
4.7
K
R6613
OPEN
R6614
OPEN
R6635
100K
R6636
180K
2.2K
R68
03
220K
R6806
2.2K
R6809
C6604
OPEN
C6603
OPEN
0.0
1
C6612
OPEN
C6608
OPEN
C6607
0.0
1
C6616
C6710
0.01
C6610
OPEN
C6617
0.1
C6613
0.1
C6609
OPEN
C6706
0.1
C6707
0.1
C6709
0.1
0.1
C6801
0.1
C6802
0.1
C6803
C6004
0.1
C6003
0.1
C6502
0.01
C6611
10
0P
C6605
OPEN
C6606
OPEN
C6708
0.01
R65
05
47K
1SS355
D6501
1S
S355
D6702
1S
S355
D6701
1S
S355
D680
5
1S
S355
D680
6
MM3Z10B
D680
1
MM3Z10B
D680
4
MM3Z10B
D680
3
MM3Z10B
D680
2
Q6904
2SC4883(O/Y)
Q6903
2SA1859(O/Y)
KRC10
5S
Q6710
KRC10
5S
Q6708
C6907 22/25
C6908
22/25
CONNECTOR_12P(43045-1213)
B6002
3P-EHs
N6004
3P-EHs
N6003
R6905
560
R6906
560
R69
01
330
R69
02
330
100K
R67
07
100K
R67
08
R67
06
22K
R67
05
22K
100K
R6703
100K
R6704
100K
R6713
100K
R6715
100K
R6714
100K
R6716
D
690
2
UD
ZS
8.2B
D690
1
UD
ZS
8.2B
D
690
4
UD
ZS
7.5B
D690
3
UD
ZS
7.5B
0.1
C6106
0.1
C6105
0.1
C6109
0.01
C6108
0.01
C6103
0.01
C6104
1000P
C6101
1000P
C6102
1000P
C6107
Z3
SPK_PWB_A454_MP
R6633
18K
Q6902
2SA1312(B)
Q6901
2SC3324
R6904
150
R6903
150
C6006
0.01
C6005
0.01
C0
TO 0C
0C
TO C0
C1
TO 1C
1C
TO C1
C2
TO 2C
2C
TO C2
C3
TO 3C
3C
TO C3
C4
TO 4C
4C
TO C4
C6
TO 6C
6C
TO C6
C7
TO 7C
7C
TO C7
C8
TO 8C
8C
TO C8
N6004
TO N3502
N6003
TO N3501
N6601
TO N8701
N6501
TO N1953
Before Servicing
This Unit
Electrical
Mechanical
Repair Information
Updating
20