NAD M3e Installation and operating instructions

SERVICE MANUAL
ADDENDUM
SERVICE MANUAL
ADDENDUM
M3e
MO D E L : M3eS ERV IC E MA N UA L
© NAD2010
NADELECTRONICS INTERNATIONAL
TORONTO
M3e
Integrated Amplifier
M3e
Integrated Amplifier
Integrated Amplifier

M3e Assembly Parts List
01-50301-01 M3e C Balance Board XLR inputs & outputs
01-50303-01 M3e C Connector Board
01-50304-01 M3e C Keyboard (Front Panel)
01-50305-01 M3e C Power Board PSU
01-50307-03 M3e C Standby board (Lower)
01-50307-22 M3e C standby board (upper) 0.5W version

REV DESCRIPTION Date
S817
1standby
S814
2listen
S818
4mono
S815
5mode
S819
7speaker
S816
8volume
R81910K R81810K R81710K
5VS
VD1
VD2
VD3
VD4
VD5
VD6
VD7
VD8
V
1S 2G 3
U801
IR RECEIVER
Q802
2SC1815
R825
10K
R826
10K
R834
10K
5VS
5VS
R823
22
C817
0.1U
GND
C826
20P
C825
20P X81
11.0592MHz
GNDGND
5VS
C821
0.1U
GND
1
2
J81
CON2
GND
R828
10K
5VS
A0
1
A1
2
A2
3
Vss
4SDA 5
SCL 6
WP 7
Vdd 8
U804
24C16
GND
5VS C824
0.1uF GND
5VS
C823
0.1uF
GND
R82910K R83010K
GNDVCC
RESET
U805
TCM810
GND
R837
10K
1
2
3
4
CON801
CON4
/EN
1
C1+
2
V+
3
C1-
4
C2+
5
C2-
6
V-
7
RIN
8ROUT 9
/INV 10
DIN 11
FCON 12
DOUT 13
GND 14
VCC 15
/FCOFF 16
U802
MAX3221
C828
0.1U
C827
0.1U
C829
0.1U
C830
0.1U
GND
C831
0.1U
5VS
R841 0R
R842 0R RXD
TXD
TXD1
RXD1
GND
5VD
ENCODER_A
ENCODER_B
S820
RESET
C832
0.1U
R843
10K
5VS
GND
GND
SPK A SPK B OPSEL STB OPSEL DATA OPSEL CLK VOLR STB VOLR DATA VOLR CLK VOLL CLK VOLL DATA VOLL STB TONE
FUNC
HDATA HCLK
LEDA
STBY
PROTECT
IR S
TXD
RXD
IR V
S811
3recorde
S812
6biamp
C815
0.1u
IR IN
IR OUT
GND
GND
C812
10N
R844
47K
P1.5/CEX2 27 P1.4/CEX1 25 P1.3/CEX0 23
P1.2/ECI 22
P1.1/T2EX
21 P1.0/T2
19
P0.7/AD7 3 P0.6/AD6 5 P0.5/AD5 6 P0.4/AD4 9 P0.3/AD3 11 P0.2/AD2 12 P0.1/AD1 14 P0.0/AD0 15
VCC 17
P2.0/A8
54
P2.1/A9
55
P2.2/A10
56
P2.3/A11
58
P2.4/A12
59
P2.5/A13
61
P2.6/A14
64
P2.7/A15
65
VSS
51
XTAL1
49
XTAL2
48
P1.6/CEX3
28
P1.7/CEX4
29
P5.7
16
P5.6
13
P5.5
10
P5.4
8
P5.3
7
P5.2
63
P5.1
62
P5.0
60
P4.7
57
P4.6
53
P4.5
50
EA 2
PSEN 67
ALE/PROG 68
P3.3/INT1 41
P3.4/T0 42
P3.5/T1 43
P3.6/WR 45
P3.7/RD 47
P4.0 20
P4.1 24
P4.2 26
P4.3
44 P4.4 46
P3.2/INT0 40
P3.1/TXD 39
P3.0/RXD 34
RESET 30
U803
89C51RD68
GND
5VD
DB7
14
DB6
13
DB5
12
DB4
11
DB3
10
DB2
9
DB1
8
DB0
7
E
6
R/W
5
RS
4
RST
3
VCC
2
GND
1
U810
M3 VFD
GND
NAD M3
GND
GND
R845
47K
Q809
2SC3326
R853
10k
R851
10k GND
R850
10k
5VS
VOLA
Q808
2SC3326
R849
10k R847
10k GND
R867
10k
5VS
R852
10K
R848
10K
Q803
2SC3326
GND
R815
10k
R816
3K3
GND
SPK A
SPK B
STBY
ZERO L
ZERO R
C833
1N
C834
1N
C835
1N
C836
1N
C837
1N
5VS
R835
330
R833
330
R836
330
GND
LEDB
2 3
1 4
ROB
D801
BL-BUBJFB52C4V-1
Q807
DTA114
Q806
DTA114
Q805
DTA114
5VS
5VS
C810
1N/50V
Add C810VM1.0 2005/11/11
D802
ss12
C844
1000u/16v
C842
10U/10V
GND
C839
10U/25V X5R C843 100n
5VD
gnd
3
out 4 in
2
en
1adj 5
dap
6
U806
TL1963A-KTT
GND
C840
N.I.
R864
8K45
C841
330u/16v
C838
330u/16v
Vin
3
GND
1
Vout 2
U808
LM1117MPX-5.0
C845
100N
C846
10U/10V C847 10U/10V
5VS
R863
10K
R814A
100RJ
R814D
100RJ
R814C
100RJ
R814B
100RJ
/e1 1
a0 2 a1 3 a2 4 a3 5 a4 6 a5 7 a6 8 a7 9
gnd 10
y7
11
y6
12
y5
13
y4
14
y3
15
y2
16
y1
17
y0
18
/e2
19
vcc
20
U809
74HC541
C849
100N
GND
GND
/e1 1
a0 2 a1 3 a2 4 a3 5 a4 6 a5 7 a6 8 a7 9
gnd 10
y7
11
y6
12
y5
13
y4
14
y3
15
y2
16
y1
17
y0
18
/e2
19
vcc
20
U811
74HC541
C850
100N
GND
GND
5VS
R846
3K3
STBY
STBY
A 0 B 0 BULE
A 1 B 0 ORANGE
A 0 B 1 RED
GND
GND
a0 1 a1 2 a2 3
/g2a 4 /g2b 5
g1 6 y7 7
gnd 8
y6
9y5
10 y4 11 y3 12 y2 13 y1 14 y0 15 vcc 16
U807
74HC138
S3
S2
S1
C852
100N
S3
S2
S1
LEDA LEDB
5VS
5VS
HDATAb HCLKb VOLR STBb OPSEL CLKb OPSEL DATAb OPSEL STBb VOLR DATAb SPK Ab SPK Bb VOLR CLKb VOLL CLKb VOLL DATAb VOLL STBb
Q801
DTA114
VOLAa
FUNCa
PROTECTa
PROTECTa IR V
IR V
IR S
R859A
100RJ
R859D
100RJ
R859C
100RJ
R859B
100RJ
R860A
100RJ
R860D
100RJ
R860C
100RJ
R860B
100RJ
R861A
100RJ
R861D
100RJ
R861C
100RJ
R861B
100RJ
R862A
100RJ
R862D
100RJ
R862C
100RJ
R862B
100RJ
STBYb TONEb
HDATA HCLK VOLR STB OPSEL CLK OPSEL DATA OPSEL STB VOLR DATA SPK A SPK B STBY VOLR CLK VOLL CLK VOLL DATA VOLL STB TONE
STBY
Q804
DTC114
STBY
R856A
100RJ
R856D
100RJ
R856C
100RJ
R856B
100RJ
R857A
100RJ
R857D
100RJ R857C 100RJ R857B 100RJ
R858A 100RJ
R858D
100RJ R858C 100RJ R858B 100RJ
R854 100R
R855 100R
5VS 5VS
R866
10R
C848
10U/10V
5VD
C851
10U/10V
R813A 10K
R813D 10K
R813C 10K
R813B 10K
R812A 10K
R812D 10K
R812C 10K
R812B 10K
6V
6V
GND
R868
2K74
ZERO L ZERO R
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
CON802
TO PSU_SCH CZ72
FUNC HDATAb HCLKb
RXD1 TXD1
PROTECT
C816
0.1U
VOLR STBb
OPSEL CLKb
OPSEL DATAb OPSEL STBb VOLR DATAb
SPK Ab SPK Bb
STBYb VOLR CLKb VOLL CLKb VOLL DATAb VOLL STBb TONEb VOLA
IR IN IR OUT GND
5VD
6V
1
2
3
4
CON804
CON4
5VS
GND
TXD1
RXD1
5VS
Q810
N.I.(2SC1815)
R869
0
C853
10U/10V
XM1
HOLE
C801
22N
R801
100R
GND
XM3
HOLE
C802
22N
R802
100R
GND
D806
1SS352
D805
1SS352
D804
1SS352
D803
1SS352
M3e FRONT PANEL KEYBOARD

D716
1N4148
R756
100K R758
62K
R767
100K
6
7
8
4
IC705A
TL082BD
R764
9K1
R765
15K
R769
9K1
R770
15K
R766
10
R771
10
Q720
2SC1815
Q721
2SA1015
+20VL
C764
10u/50V
C769
10u/50V
-20VL
C767
1uF/50V
R755
220K
IC705B
TL082BD
R752
18K
R743
47K
C761
10uF/50V
C762
1uF/50V
R759
10K
D715
1N4148 R751
220K
1
2
35
R761
220K
1
VR701
6K8
R754
10K
D714
6.8V
C760
1uF/50V
D713
BAV21
D719
5V6
D717
BAV21
C717
22n/250V
C718
22n/250V
C727
22m/100V Q704
2SC1815
Q703
2SA1015
D702
BT151-500R
D703
BT151-500R
R703
1K
R715
22K
R706
100
R708
1K
R704
1K
R705
1K
R707
100 R709
22K
R710
0.025/3W 2%
R711
100 1%
Q705
2SA970
Q706
2SA970
R713
470K
FP
H1
H2
L1
L2
G
C730
22n/250V
C731
22n/250V
C720
22n/100V
C721
22n/100V
R746
0.22/1W FS
R747
0.22/1W FS
R748
0.22/1/2W FS
R749
0.22/1/2W FS
C732
22n/100V
C733
22n/100V
C734
1000u/100V
C735
1000u/100V
R716
1K
R717
1K
R722
3R3 1/2W FS
R719
1K
R718
1K
R720
1K
R724
1K
R721
1K
R730
2K 1%
R726
1K
R725
2K2
R728 5k1 1% 1W
R723
3R3 1/2W FS
R727
1K
R729
10K 1% 1W
C738 100u/100V
C742
10u/100V
C743
10u/100V
C739
100u/100V
C747
22u/80V
C744
22n
C741
47P
C740
47P
C745
22n
Q709
KSC2690
Q710
2SC2240
Q711
2SC2240
Q712
KSA1220
Q713
2SA970
D705
1N4148
D706
1N4148
D708
1N4148
D707
1N4148
C736
100u/100V
C737
100u/100V
R731
10K 1%1W
C746
22u/80V
+20VL
+V71L
-V71L
1
2
3
4
B705
DB104
1
2
3
4
B706
DB104
1
2
3
4
B703
KBU1004
1
2
3
4
B704
KBU1004
C722
22n/100V
C723
22n/100V
D704
1N5404
Q707
2SA1015 Q708
2SC1815
R714
22K
-V74L
(TRIG)
1
2
3
4
5
CB704
5PIN
1
2
3
4
5
CB703
5PIN
ISCL
R793
100 C705
0.1uF
R712
9K1 1%
+V74L
C766
22m/100V
R733
240/1% MF
R735
240/1% MF
R732
3k6/1% MF
R734
3k6/1% MF
C754
22u/50V
C755
22u/50V
C756
22N
C757
22N
IN IC703
LM317M
IN
IC704
LM337M
C750
22N
C751
22N
+20VL
-20VL
C748
2m2/50V
C749
2m2/50V
C752
10u/50V
C753
10u/50V
D709
1N4148
D710
1N4148
1
2
3
4
5
CZ71
CON3
C78
CAP
ISCL
Q701
2SC1815
R702
91K
+V71L
D616
1N4148
R656
100K
R658
62K
R667
100K
6
7
8
4
IC605A
TL082BD
R664
9K1
R665
15K
R669
9K1
R670
15K
R666
10
R671
10
Q620
2SC1815
Q621
2SA1015
+20VR
C664
10u/50V
C669
10u/50V
-20VR
C667
1uF/50V
R655
220K
IC605B
TL082BD
R652
18KR643
47K
C661
10uF/50V
C662
1uF/50V
R659
10K
D615
1N4148
R651
220K
1
2
35
R661
220K
1
VR601
6K8
R654
10K
D614
6.8V
C660
1uF/50V
D613
BAV21
D619
5V6
D617
BAV21
ISCR
C617
22n/250V
C618
22n/250V
C627
22m/100V Q604
2SC1815
Q603
2SA1015
D602
BT151-500R
D603
BT151-500R
R603
1K
R615
22K
R606
100
R608
1K
R604
1K
R605
1K
R607
100 R609
22K
R610
0.025/3W 2%
R611
100 1%
Q605
2SA970
Q606
2SA970
R613
470K
FP
H1
H2
L1
L2
G
C630
22n/250V
C631
22n/250V
C620
22n/100V
C621
22n/100V
R646
0.22/1W FS
R647
0.22/1W FS
R648
0.22/1/2W FS
R649
0.22/1/2W FS
C632
22n/100V
C633
22n/100V
C634
1000u/100V
C635
1000u/100V
R616
1K
R617
1K
R622
3R3 1/2W FS
R619
1K
R618
1K
R620
1K
R624
1K
R621
1K
R630
2K 1%
R626
1K
R625
2K2
R628 5k1 1% 1W
R623
3R3 1/2W FS
R627
1K
R629
10K 1% 1W
C638 100u/100V
C642
10u/100V
C643
10u/100V
C639
100u/100V
C647
22u/80V
C644
22n
C641
47P
C640 47P
C645
22n
Q609
KSC2690
Q610
2SC2240
Q611 2SC2240
Q612
KSA1220
Q613
2SA970
D605
1N4148
D606
1N4148
D608
1N4148
D607
1N4148
C636
100u100V
C637
100u/100V
R631
10K 1% 1W
C646
22u/80V
+20VR
+V71R
-V71R
1
2
3
4
B605
DB104
1
2
3
4
B606
DB104
1
2
3
4
B603
KBU1004
1
2
3
4
B604
KBU1004
C622
22n/100V
C623
22n/100V
D604
1N5404
Q607
2SA1015 Q608 2SC1815
R614
22K
-V74R
(TRIG)
1
2
3
4
5
CB604
5PIN
1
2
3
4
5
CB603
5PIN
ISCR
R693
100
C605
0.1uF
R612
9K1 1%
+V74R
C666
22m/100V
R633
240/1% MF
R635
240/1% MF
R632
3k6/1% MF
R634
3k6/1% MF
C654
22u/50V
C655
22u/50V
C656
22N
C657
22N
IN IC603
LM317M
IN IC604
LM337M
C650
22N
C651
22N
+20VR
-20VR
C648
2m2/50V
C649
2m2/50V
C652
10u/50V
C653
10u/50V
D609
1N4148
D610
1N4148
+V74R -V74R
1
2
3
4
5
6
7
8
9
10
CZ603
CON10
AC DET R
PROTECT
SPK A
SPK B
1
2
3
4
5
6
7
8
9
10
CZ703
CON10
AC DET L
PROTECT SPK A SPK B
D701
1N4148
R701
22K
C701
4.7uF/25V
D601
1N4148
R601
22K
C601
4.7uF/25V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
CZ72
CON30
DGND
IR IN
IR OUT
AC INLET
PLUG AC MALE
Q601
2SC1815
R602
91K
+V71R
REV. Date
DESCRIPTION
1
2
3
4
CZ74
CON4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CZ75
CON16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CZ73
CON16
-20VL
+20VL
DGND
DGND
+20VR
-20VR
5V
DGND
TRIG+
TRIG-
C92
4700P
AC
1
AC
2
GND
3
AC 4
AC 5
EMI FILTER
EMI FILTER
+20VR
-20VR
R636
680k
R736
680k
D91
1N4148
RL91
DH12D1-O(M)
5VD
Q91
2SA1015 R92
10k
R91
10K
OP91
OPTOISO1
R95
12K
R94
22K
Q92
2SA1015 R93
2K
TRIG+
R96
10K
5VD
PROTECT
OP92
OPTOISO1
1 2
CB601
1 2
CB701
-20VL +20VL
R97
4.7k D92
1N4148
FUNC
HDATA
HCLK
RXD
TXD
PROTECT
VOLR_STB
OPSEL_CLK
OPSEL_DATA
OPSEL_STB
VOLR_DATA
SPK A
SPK B
STBY
VOLR_CLK
VOLL_CLK
VOLL_DATA
VOLL_STB
TONE
VOLA
RXD
TXD
5VD
IR IN
IR OUT
TRIG+
TRIG-
OPSEL_CLK
HCLK
HDATA
FUNC
VOLR_STB
VOLR_DATA
VOLR_CLK
VOLL_CLK
VOLL_DATA
VOLL_STB
VOLA
TONE
OPSEL_DATA
OPSEL_STB
ZEROL
GNDL
1
P701 CON1
1
P702 CON1
1
P703 CON1
GNDR
1
P601 CON1
1
P602 CON1
1
P603 CON1
TO STB_SCH CZ906
TO FFP_SCH CZ81
TO CON_SCH CZ97
TO AMP_SCH P301 P302 P303 P304
TO AMP_SCH CZ302
TO CON_SCH CZ92
TO AMP_SCH P401 P402 P403 P404
TO AMP_SCH CZ402
TO STB_SCH CZ902
2.9V @ 4ohms/30W
11.9V
-11.9V
4.5V
0V 0V
0V
R98
100
GNDR
1
P604 CON1
GNDL
1
P704 CON1
Change C661 C761 from 1uF/50V to 10uF/50V, R652 R752 to 18K, R643 R743 to 47K, R622 R623 R722 R723 from 33R/1/4W to 3R3/1/4W,
R646 R647 R746 R747 from 0.22R/1/4W to 0.22R/1W, R648 R649 R748 R749 from 0.22R/1/4W to 0.22R/1/2W
VM1.0 2006/3/11
VM1.1 R628 R728 from 5K1 0.6W 1% to 5K1 1W 1%
R629 R631 R729 R731 from 10K 0.25W 1% to 10K 1W 1% 2006-5-24
R622 R623 R722 R723 From 3R3 0.25W RF to 3R3 0.5 W RF
R channel main transformer
117VAC
117VAC
DUAL 68/22VAC DUAL 50/40VAC
L channel main transformer
117VAC
117VAC
DUAL 68/22VAC DUAL 50/40VAC
POWER SWITCH
1
2
3
S1
CON3
R672
4R7 1% 0.25W
D620
1N4148
D621
1N4148
R673
4R7 1% 0.25W
D622 1N4148
D623
1N4148
R772
4R7 1% 0.25W
D720
1N4148D721
1N4148
R773
4R7 1% 0.25W
D723
1N4148
D7221N4148
ADD R672 R673 R772 R773 4.7OHM 0.25W
ADD D620 D621 D622 D623,D720 D721 D722 D723 1N4148
VM1.2 2006-6-5
2006-5-24
1
J602
20mm Jumper
1
J603
10mm Jumper
1
J701
10mm Jumper
1
J702
20mm Jumper
-V74L
1
J703
10mm Jumper
C666 C 627 C766 C727 from 22m/80V to 22m/100V
5V
5VD
POWER SUPPLY ASSEMBLIES

R525
75
R530
2k2 R534
1K
R516
120K
R54
10
R558
4k7
R548
10K
R550
2K21
R559
2K2
R524
75
R55
10
R532
1K
R521
1Meg
R562
49.9
R540
2K21 1%
R566
470
R551
2K21 1%
R542
100 R543 100
R546
4K7
R528
1K
R570
160
R554
3K
R567
470 R556 4K7
R517
120K
R520
1Meg
C530
47P
C524
33P
C534
10uF
C526
33P
C510
220N
C517
160p
C59
220N
11 2
2
3
344
L53
220uH X2
Q54
2SK209
Q55
2SK209
D52
1N4148
Q58
2SA1312
R533
1K
R529
1K
C519
160p
D54
1N4148
Q512
2SA1312
Q524
2SC2983
Q526
2SC2983
Q59
2SA1312
Q514
2SA1312
L51
100uH
Q511
2SA1312
Q510
2SA1312
Q528
2SC3324 Q529
2SC3324
D56 1N4148
D57 1N4148
D58 1N4148
Q515 2SA1312
D53
1N4148
Q530
2SC3324
Q525
2SC3324
D59
1N4148
D510
1N4148
Q516
2SA1312
R564
100
C525
33P
+20VL
-20VL
+20VL
-20VL
C532
100p
C518
22P
C521
22P
+20VL
R527
75
R536
2k2 R539
1K
R518
120K
R56
10
R560
4k7
R549
10K
R552
2K21
R561
2K2
R526
75
R57
10
R537
1K
R523
1Meg
R563
49.9
R541
2K21 1%
R568
470
R553
2K21 1%
R544
100 R545 100
R547
4K7
R531
1K
R571
160
R555
3K
R569
470 R557 4K7
R519
120K
R522
1Meg
C531
47P
C527
33P
C535
10uF
C529
33P
C512
220N
C536
160P
C511
220N
11 2
2
3
344
L54
220uH X2
Q56
2SK209
Q57
2SK209
D55
1N4148
Q513
2SA1312
R538
1K
R535
1K
C537
160P
D511
1N4148
Q517
2SA1312
Q527
2SC2983
Q532
2SC2983
Q518
2SA1312 Q519
2SA1312
L52
100uH
Q521
2SA1312
Q520
2SA1312
Q533
2SC3324 Q534
2SC3324
D5121N4148
D5131N4148
D5141N4148
Q522 2SA1312
D515
1N4148
Q535
2SC3324
Q531
2SC3324
D516
1N4148
D517
1N4148
Q523
2SA1312
R565
100
C528
33P
+20VR
-20VR
+20VR
-20VR
C533
100p
C520
22P
C522
22P
+20VR
INPUT1
XLR
INPUT2
XLR
R511
220
R514
220
C513
100P
C515
100P
C514
100P
C516
100P
R513
220
R512
220
PJ1
+12VOUT C58
0.1uF/50V
R51
0R
C51
10n/63V
JIRA1
IR IN
JIRB2
IR OUT1
R52
330
JIRB1
IR OUT2
1
2
3
4
5
6
7
8
RS232
DB9
VCC
R530R
1
2
3
4
5
6
7
8
CZ504
CON12
+20VR
-20VR
+20VL
-20VL
R501 100
R502 100
C505
470pF
C504
220P
C506
220P
C502
470pF
C501
220P
C503
220P
REV. DESCRIPTION
C538
0.1uF/50V
C541
0.1uF/50V
C540
0.1uF/50V
C545
0.1uF/50V
C544
0.1uF/50V
C543
0.1uF/50V
C542
0.1uF/50V
C539
0.1uF/50V
U51
OPTOISO1
Q536
2SC2983
R574
5.6K
R572
12
Q537
2SC3324
D51
12V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
CZ501
CON12
C546
47p
C548
47p
trigger-
trigger+
232r
232t
IR in
IRout
R546 R547 from 10k to 4k7
R554 R555 from 4k7 to 3k3
Q524 Q526 Q527 Q532 from 2SC3324 to KSC2690
R571 R570 from 47 to 82
C550
0.1uF/50V
C551
0.1uF/50V
C552
0.1uF/50V
C553
0.1uF/50V
R573
10K
R577
3K
R576
3K
to HS4-M3-B007 CON VC4.0.SCH CZ93
to HS4-M3-B007 PRE VC4.0.SCH CZ101
D518
12V
D519
12V
D520
12V
D521
12V
C556
33U/16V
C557
33U/16V
C555
0.1u
C554
0.1u
R580
10K
R581
10K
C556,C557 FROM 100U/16V TO 33U /16V 2005-4-27
+20VR
C558
100N C559
100N
12
U52A
74HCU04
34
U52B
74HCU04
C52
0.1uF
VCC
Q507
DTA114
BALANCE BOARD

1
2JP901
230V
1
2JP902
120V
1
2
3
4
B901
DF1501S
1
2
3
4
B902
DF1501S
C903
2200uF/16V
C904
1000uF/25V
C905
0.1uF/50V
C906
0.1uF/50V
C902
0.1uF/50V
C901
0.1uF/50V C907
100uF/10V C908
0.1uF/50V
1
2
3
4
CZ904
4PIN
1
2
JP903
120V 1
2
JP904
230V 1
2
JP905
120V
1
2
3
4
CZ903
CZ903
1
2
3
4
5
CZ906
CON5
1 2 3 4
CZ905
CON5
F901
120V 100MA/250V
F902
120V 5A/250V
1 2 3 4
CZ902
CON4
1
2
JP906
120V 1
2
JP907
230V 1
2
JP908
120V
1
2
3
4
CZ908
CON4
1
2JP900
120V
To two main transformers
to HS4-M3-B007 PSU VC4.0.SCH CZ74
to HS4-M3-B007 PSU VC4.0.SCH CZ71
F903
230V 3.15A/250V
F902,F903
230V 100MA/250V
G
1
OUT
2
IN
3
O4
IC1
NC
R901
0R
STANDBY POWER SUPPLY

+24VL
-24VL
5V
-24VR
+24VR
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
CZ94
FROM PRE_SCH CZ201
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CZ97
FROM PSU_SCH CZ73
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CZ92
FROM PSU_SCH CZ75
+24VR
-24VR
+24VL
-24VL
1 2 3 4 5 6 7 8 9
10 11 12 13 14
CZ93
FROM BAL_SCH CZ501
OPSEL_DATA
VOLL_DATA
OPSEL_STB
VOLL_CLK
VOLR_STB
TONE
VOLR_CLK
HCLK
VOLR_DATA
FUNC
VOLA
HDATA
VOLL_STB
OPSEL_CLK
+24VL
-24VL
+24VR
-24VR
RXD
TXD
5V
IR IN
IR OUT
TRIG+
TRIG-
OPSEL_CLK
HCLK
HDATA
FUNC
VOLR_STB
VOLR_DATA
VOLR_CLK
VOLL_CLK
VOLL_DATA
VOLL_STB
VOLA
TONE
OPSEL_DATA
OPSEL_STB
ZEROR
ZEROL
ZEROL
ZEROR
IR IN IR OUT RXD TXD TRIG+ TRIG-
Q990
C2983
D990
24V
C990
1OU/35V C991
100N
R990
5.6K
Q991
C2983
D991
24V
C994
10U/35V C993
100N
R991
5.6K
CONNECTION BOARD