Marantz PM-12 OSE, Service Manual

Page: 13 / 56

SCH05 TONE/HP
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
To HP
Ja
ck
PWB
N9901
8U-210238-2
TONE/HP
from
POWER
PWB
N8103
from
A
UD
IO
PWB
N5051
from UCOM PWB N1002
T-GND
6
8 4
1
2
5
7 3
1
+15V
2 A_GND
3
-15V
4
L_GND
5 +24V
6
D_GND
1
InA
32
InB
31
GND
30
SWCB
29
OutB
28
GND
27
Tone_T
r1b
26
Tone_Mi1b
25
Tone_Mi2b
24
Tone_B
a1b
23
Tone_B
a2b
22
NC
21
NC
20
V+
19
V-
18
AD
R1
17
AD
R0
2
GND
3
SWCA
4
OutA
5
GND
6
Tone_T
r1a
7
Tone_Mi1a
8
Tone_Mi2a
9
Tone_B
a1a
10
Tone_B
a2a
11
NC
12
GND
13
VD
Dout
14
DAT
A
15
CL
OCK
16
LA
TCH
1
4
8
2
3
7
6
5
1 T_DAT
2 T_CLK
3 T_LAT
4
PROT_1
5
PROT_2
6 HP_DET
7 HP_REL_OUT
8 D_GND
1 HP_DET
2 D_GND
3 HP_L
4 A_GND
5 HP_R
1 TI_L
2 TI_R
3 NC
4 TO_L
5 TO_R
6 T_GND
7 HP_L
8 HP_R
9 NC
D-GND..
+24V..
A-GND..
-15V..
R9823
100K
HP_DET
+15V..
NA24W
-K
S9801
C9806
100/25
C9805
100/25
10
R9825
10
R9826
HP_REL_OUT.
L-GND..
A-GND..
1S
S355
D9801
3.3K
R25
52
10/50 C2506
KSC1845FTA
Q2551
10/50 C2516
100
/25
C2556
D-GND..
0.03
3
C2509
T_LAT
R2555
4.7
K
10/50
C2517
OPEN
C255
8
3.3K
R2553
10/50
C2505
1000P C2518
3.3K
R25
04
100/25 C2555
Q2553 KTC3875S
4700P C2511
T_CLK
R2556
4.7
K
10/50
C2503
3.3K
R2554
10/50
C2502
0.22/50
C2514
4700P C2512
100/25
C2553
+15V..
C2557
1/50
1000P C2507
T_DAT
R2558
10K
4.7K
R25
01
10 R2505
10/50
C2501
-7V
0.22/50
C2513
0.03
3
C2510
100
/25
C2554
-15V..
47/25
C2551
10/50
C2504
-7V
Q2555 KTC3875S
10/50 C2515
10 R2506
-7V
3.3K
R25
51
1000P C2508
KSA992FTA
Q2552
47/25 C2552
4.7K
R25
02
T-GND
3.3K
R25
03
10 R2507
-7V
R2557
4.7K
TI_L.
TO_L.
TO_R.
TI_R.
+15V..
A-GND..
6P-EH(IM)
N2501
D-GND.. L-GND..
PROT_2.
T_CLK
T_LAT
-15V..
+24V..
OPEN
J8103
NJW1119A
V
U2501
Q9813
KRC105S
100
R2509
100
R2510
R9824
100K
OPEN
D2552
OPEN
D2551
R9820
10
R9822
10
R9821
10
R9819
10
C9803
220/25
C9804
220/25
R9835
330
R9833
330
R9837
330
R9831
330
R9836
330
R9832
330
R9838
330
R9834
330
2S
C4883(O/Y)
Q9806
2S
C4883(O/Y)
Q9805
2S
A1859(O/Y)
Q9808
2S
A1859(O/Y)
Q9807
KSC1
845F
TA
Q9804
R9809
5.6K
NJM2082M-TE1
U9801
R9803
22
HP_R.
OPEN
J9801
KSC1
845F
TA
Q9803
R9839
100
HP_L.
R9807
5.6K
R9829
100
R9828
3.3K
KS
A992F
TA
Q9801
R9840
100
R9830
10
0
NJM2082M-TE1
U9801
R9806
22
KS
A992F
TA
Q9802
330P
C9807
330P
C9808 OPEN
J9802
R9804
22
R9808
5.6K
R9810
5.6K
R9805
22
22P
C9809
22P
C9810
Q9816 KTC3875S Q9817 KTC3875S
D-GND..
PROT_1.
OPEN
C9812
R9815
39K
R9814
39K
R9816
22K
C9811
47
0/16
PROT_2.
HP_DET
PROT_1.
KT
A1504S Q2556
R2559
10
0K
0.0
1
C2559
D-GND..
+24V..
R2561
22K
2200P C2560
Q2557
KRC102S
Q2558
KRC102S
R2560
4.7K
R9827
3.3K
R9841
1M
R9842
1M
C9813
220/25
C9814
220/25
D-GND..
8P-PHs
N2502
T_DAT
HP_REL_OUT.
A-GND..
100K
R25
12
100K
R25
11
5P-EHs
N9801
TI_L.
TI_R.
TO_L.
TO_R.
HP_R.
HP_L.
T-GND
Z2501
GND-TERMINAL
9P-EH
N2503
T-GND
10/50
C9802
10/50
C9801
R9802
10K
R9801
10K
B1
TO 1B
1B
TO B1
B2
TO 2B
2B
TO B2
B3
TO 3B
3B
TO B3
B4
TO 4B
4B
TO B4
B5
TO 5B
5B
TO B5
B6
TO 6B
6B
TO B6
B7
TO 7B
7B
TO B7
B8
TO 8B
8B
TO B8
N2503
TO N5051
N2501
TO N8103
N2502
TO N1002
N9801
TO N9901
Before Servicing
This Unit
Electrical
Mechanical
Repair Information
Updating
13