
Electrical Diagrams and PWB’s
47
EM3E
7.
Large Signal Panel: Audio Amplifier
A57
20V / div AC
2us / div
PM3394B
A59
10V / div DC
2us / div
PM3394B
PWM
STAGE2
G=2.5
PRE-AMP1
INTERGR 1
INTERGR 2
PWM
STAGE2
OSC
G=2.5
PRE-AMP2
PWM
STAGE2
G=2.5
PRE-AMP1
INTERGR 1
INTERGR 2
PWM
STAGE2
OSC
G=2.5
PRE-AMP2
5713 F2
5714 F2
5711 D4
5712 C4
5709 D2
5708 D1
5707 D1
5710 D3
5705 F8
5706 F7
7704 B4
7705 B5
7706 B5
7707 C4
3732 E7
3730 E6
3731 E9
3729 F7
3723 C1
3724 E1
3725 D2
3726 E1
3727 E4
3728 F8
3794 B7
3795 B8
3796 C7
3797 C8
7703 B5
7702 C8
5703 E2
5704 F2
15W/8
15W/8
R
15W/8
5715 E9
5716 D9
5717 F8
5718 E8
5719 E7
7701 B5
7700 C3
5724 F6
0044 F7
0045 E5
1735 E2
1737 F9
3793 B3
3792 B2
2702 B3
2703 A2
OV
OV
OV
OV
OV
OV
OV
-19V
OV
9V6
3733 E7
3734 D9
3735 C9
3736 D9
3737 C9
3791 B2
3790 B3
3742 D6
2708 A2
2709 C5
2710 C4
2711 E1
5701 E3
5702 E2
2715 E3
2716 D3
2717 F3
2718 E2
2719 E4
2720 B2
2721 B1
2722 C1
2723 E6
2724 D1
2725 E8
2726 D2
A
B
C
5720 F7
5721 E8
5722 E6
5723 D6
B
C
D
E
F
2746 E8
2747 D9
2748 D9
2749 B8
1738 F6
2701 A3
2752 A8
2753 B7
2754 B7
2755 C7
2756 D6
2757 D6
2758 F7
2759 E7
2760 C6
2761 C9
2762 B7
2763 B7
3738 C7
3739 C6
3740 B6
3741 E7
2704 B2
2705 A5
2706 A3
2707 B2
3718 E4
3719 E9
3720 E6
3721 B1
2712 D4
2714 D3
3705 B2
3706 E5
3707 C5
3708 E5
3709 E4
3710 D3
3711 C4
3712 E2
3713 C5
3714 B5
3715 B5
3716 B5
2727 E2
2728 D2
2729 F3
2731 F2
2732 F2
D
E
F
A
2741 E7
2742 E7
2743 E7
2744 E8
2745 E8
A8-18
A8-19
A8-6
A3-A8-45
2750 C8
2751 A8
3722 C1
AUDIO AMPLIFIER
SUBWOOFER
15W/8
CENTRE
2781 D4
2782 D6
2783 D9
2784 E6
2785 E9
2786 A2
2787 B7
2764 B2
2777 D1
2778 B4
2779 D1
2780 D3
3701 C5
3702 A5
3703 A5
3704 A4
3717 F3
L
2733 F8
2734 F6
2740 F8
A8-13
A8-14
220n
2752
470p
2709
220R
2761
470p
3724
120K
3711
2763
220n
2764
220n
100n
2706
22n 2784
2751
100n
1n
2723
2787
22n
22K
2786
22n
3725
5723
5722
10K
3797
3738
8R2
10K
3701
3742
2753
220n
5707
220R
3709
56K
A61
A63
68K
3735
56K
1n
2750
10K
3741
3723
2707
220n
2734
220n
100n
2724
2777
22n
100n
2754
1u
33u
5701
2757
7705
BC847B
1K
3792
2718
22p
100K
3718
3717
100K
4K7
3721
5710
5708
5709
47K
3715
2704
2758
470n
1n
3739
68K
56K
3708
2782
22n
3737
4K7
FEED1
7
FEED2
9
FEED3
17
FEED4
19
GND
13
IN1
10
IN2
18
NC
20
OSC
8
OUT1
3
OUT2
23
STBY-MUTE
6
T1
11
T2
15
VREG
25
7700
TDA7490
+5V
12
+VCC1
4
+VCC2
22
-5V
16
-VCC1
1
-VCC2
2
-VCC3
24
BOOT1
5
BOOT2
21
CURREF
14
0044
3714
47K
1n
2727
3740
4K7
470p
2722
470p
2760
220R
3731
1735
EH-B
1
2
3
4
3790
10K
5V
33u
5705
5717
3732
22K
BC847B
7707
2729
3707
68K
33n
2726
470n
220R
3730
5712
10K
3704
22n
2783
2785
22n
5719
5718
2743
33n
5706
33u
2714
1
2
3
5716
33n
1n
2715
EH-B
1737
1n
2712
100n
FEED3
19
FEED4
13
GND
10
IN1
18
IN2
20
NC
8
OSC
3
OUT1
23
OUT2
6
STBY-MUTE
11
T1
15
T2
25
VREG
2702
12
+5V
4
+VCC1
22
+VCC2
16
-5V
1
-VCC1
2
-VCC2
24
-VCC3
5
BOOT1
21
BOOT2
14
CURREF
7
FEED1
9
FEED2
17
220n
2720
TDA7490
7702
470p
2744
33n
2756
56K
3736
220n
2732
10K
3796
220n
2733
2741
22p
22n
2780
2781
22n
2711
1n
5714
22n
2779
10K
5713
2755
1n
3712
3702
4K7
3706
1u
2701
10K
2710
470p
1K2
3713
3722
BC847B
7703
68K
5715
5724
1
2
3
1738
EH-B
5721
33u
2745 330p
5703
33u
0045
33u
5704
A59
A60
1n
2725
1K
3794
1u
2703
4u7
3716
47K
3728
100K
2778
2749
1u
33K
3703
5711
2762
10K
3791
220n
2731
220n
3734
120K
2747
2746
1n
470p
2719
1n
1K
3795
2740
220n
470n
A56
A58
A57
2708
3705
330p
2728
8R2
A62
100n
2748
22K
3733
BC847B
7701
33u
470n
2705
100K
5720
3729
2742
330p
5702
2717
470n
33u
2721
470p
22K
3710
2759
1n
1K
3793
330p
2716
3727
220R
3720
220R
3726
220R
3719
220R
7704
BC847B
7706
BC857B
-16V-19V
+16V+19V
-16V-19V
+16V+19V
+16V+19V
+16V+19V
PROT1
PROT1
-16V-19V
-16V-19V
POR
-16V-19V
+16V+19V
PROT1
PROT1
PROT1
-16V-19V
+16V+19V
AUDIO-R
+16V+19V
-16V-19V
+16V+19V
AUDIO-SW
AUDIO-C
SOUND-ENABLE
-16V-19V
AUDIO-L
CL16532044_054.eps
180601
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
A58a
A58
200mV / div DC
2ms / div
A56
200mV / div DC
2ms / div
www.freeservicemanuals.info
Summary of Contents for EM3E
Page 96: ...Electrical Diagrams and PWB s 65 EM3E 7 SSB LOT Side Part 1 B27 www freeservicemanuals info ...
Page 97: ...66 EM3E 7 Electrical Diagrams and PWB s SSB LOT Side Part 2 B27 www freeservicemanuals info ...
Page 98: ...Electrical Diagrams and PWB s 67 EM3E 7 SSB LOT Side Part 3 B3 B5 www freeservicemanuals info ...
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