Marantz PM-10 Service Manual page 13

SCH04_XLR IN_VOLUME AMP 1
K4501
NC3FAH3
1 2 3
BALANCED1 L
C4501
0.1Z
A-GND
CHASSIS
1:GND
2:HOT
3:COLD
C4505,C4506
F,U: OPEN
N,K: 330pF
K4502
NC3FAH3
1 2 3
BALANCED1 R
C4502
0.1Z
A-GND
CHASSIS
1:GND
2:HOT
3:COLD
C4507,C4508
F,U: OPEN
N,K: 330pF
K4503
NC3FAH3
1 2 3
BALANCED2 L
C4503
0.1Z
A-GND
CHASSIS
1:GND
2:HOT
3:COLD
C4509,C4510
F,U: OPEN
N,K: 330pF
K4504
NC3FAH3
1 2 3
BALANCED2 R
C4504
0.1Z
A-GND
CHASSIS
1:GND
2:HOT
3:COLD
C4511,C4512
F,U: OPEN
N,K: 330pF
Z4502 Z4507
STYLE-PIN STYLE-PIN
Z4503 Z4508
STYLE-PIN STYLE-PIN
Z4504 Z4509
STYLE-PIN STYLE-PIN
Z4505 Z4510
STYLE-PIN STYLE-PIN
Z4506 Z4511
STYLE-PIN STYLE-PIN
8U-210217-1
XLR IN/VOLUME AMP PWB 1/3
GND LINE POWER+ LINE POWER- LINE Rch SIGNAL
+21.3V +19.8V
N4501
1
+24V
+VCC
R4521
2
+OUT
47 C4529
3 +I N 4
C4513 -I N
R4517
47/25
47/25 5
OPEN -OUT
6
8 4 -VCC
1
6
2
5 7 3
1
A-GND
+VCC
2
R4518 +OUT
C4514 C4530
OPEN 3 +I N 4
47/25 -I N
5 47/25
-OUT
R4523
47
-VCC
6
N4502
N4503
1
+VCC
R4522
2
+OUT
47 C4531
3 +I N 4
C4515 -I N
R4519
5 47/25
47/25
OPEN -OUT
-VCC
6
8 4
6
1
2
7 3
5
A-GND 1
+VCC
2
R4520 +OUT
C4516 C4532
3 +I N 4
OPEN
47/25 -I N
5 47/25
-OUT
R4524
47
-VCC
N4504 6
BAL1
Q3501
-19.8V
KRC102S On:+3.3V
Of f : 0V
6
8 4
1 L-GND
2
7 3
5 BAL2
Q3502
KRC102S On:+3.3V
Of f : 0V
L-GND
Measurement condition
・ Voltage measurement
6 No signal
8 4
1
L-GND
2 ・ Waveform measurement
5 7 3
INPUT: 500mVrms/1KHz(CD)
VOLUME: -24.5dB
OUTPUT: 1W at 8ohms
Lch SIGNAL STBY POWER
+20V
R4533
SHORT
R4534
SHORT
-20V
+24V
NA24W-K
S4505
5 7 3 1
6 8 4
2
BI - AMP RELAY
+24V +24V
5 7 3
1
VI_L+
6 8 4
2
NA24W-K
S4506
5 7 3 1
6 8 4
2
Q3801
KRC102S
L-GND
Q3505
KRC102S
BAL
On:+3.3V
Of f : 0V
Q3503
KRC102S
L-GND BI - AMP
L-GND
BAL
BAL1
BAL2
13
VI_R-
VI_R+
-17.5V (PUREST : OFF)
R3805
-18V
10
C3803
R3807
22/25 10K
C3804
NA24W-K R3808
S3801
22/25 10K
3 5 7
1 1 4 6 8
6 8
2 5 7
2
4
3
A-GND
C3805
R3809
22/25 10K
C3806
R3810
22/25 10K
R3806
+18V
10
Q3802 Q3803
KRC102S KRC102S
+17.5V (PUREST : OFF)
HQ_MODE UNBAL
H:On H:On
L:Of f L:Of f
L-GND L-GND
HQ_MODE
UNBAL
L4501
BI - AMP
BL02RN2-R62T2
+3.3V:Bi - Amp
0V :St e reo mode
D-GND -
BI - AMP
Z4501
GND-TERMI N AL
N4508
BAL N4508
BAL1 11P-EH
AUDI O 2基板から
BAL2 +5VA
1
+20V
2
-20V
3
-18V
4
TO N8103
5
+18V
6
A-GND
+15V
7
-15V
8
9
+24V
10
L-GND
PROTECT2
11
N4509 N4509
5P-EH(I M )
1
2
3
4
A-GND 5
L-GND
TO N3003
N4505
N4505
4P-EH(I M )
1 UNBAL_R+
2 UNBAL_R-
3 UNBAL_L+
4 UNBAL_L-
TO N3002
A0
VI _ L-
VI _ L+
TO 0A
VI _ R-
VI _ R+
6
4
C3811
R3817
RO_L
7
22/25 47
5 U3801
NJM2068MD
A-GND
U3801
NJM2068MD
3
C3812
R3818
RO_R
1
22/25 47
2 8
N4506
HP_REL_OUT
12 HP_REL_OUT
POW_MUTE
11 POW_MUTE
V_DATA_R
10 V_DATA_R
V_CLK_R
9 V_CLK_R
V_DATA_L
8 V_DATA_L
V_CLK_L
7 V_CLK_L
V_CS_R
6 V_CS_R
V_CS_L
5 V_CS_L
V_MUTE
4 V_MUTE
HP_DET
3 HP_DET
PROTECT2
2 PROTECT2
1 D_GND
D-GND - TO N1001
12P-PH
N4506
N4507
N4507
13P-PH
BAL
1
BAL1
2
BAL2
3
BI - AMP
4
HQ_MODE
5
UNBAL
6
7
HP_REL_I N
8
RO_L
9
RO_R
10
TO N2502
+18V
11
12
-18V
13
A-GND