
7-9
7-9
HEADPHONE
AMPLIFIER
6
MICROPHONE
AMPLIFIER
9
F
C
MIC
HP
LEFT
RIGHT
4
5
7
8
9
10
11
1
2
3
4
5
7
8
10
11
A
B
G
A
INTERFACE BOARD
B
C
D
E
D
E
F
G
RIGHT
1304
Connection
to Cabinet
1
2
3
6
F614
LEFT
to / from
HEADPHONE / MICROPNONE BOARD
10K
F632
3663
22R
3674
3666
100R
2682
1n
4
2662
3n3
LM833D
7680-A
3
2
1
8
2672
470p
F611
F627
F623
3669
10R
2666
390p
3676
1K
3695-A
10K
2
13
MIC
F630
2696
47u
3697
470R
3677
1K
3668
10K
2683
2u2
3696
470R
3683
100R
3686
2K2
2674
4u7
F631
F624
F619
2687
390p
F603
FE-ST-VK-N
1690
1
2
3
4
5
6
7
8
F607
F622
MIC
1
2
3
3681
10K
F613
HLJ1540
1492
5
6
7
3671
4K7
3
2
1
8
4
NJM4556AM
7650-B
F629
NJM4556AM
7650-A
3689
10K
3678
1K
MIC
8600
3673
10K
MIC
F608
MIC
F615
F609
2688
390p
F628
2673
4u7
3667
10K
3690
10K
MIC
2690
1u
2686
3n3
3672
4K7
2681
1n
F604
F617
2680
100n
MIC
3
3682
10K
5
46
1491
HLJ1540
1
2
MIC
3661-B
10K
2684
2u2
3684
100R
2695
47u
F601
2685
3n3
MIC
LM833D
7680-B
5
6
7
MIC
F626
2689
1u
MIC
F625
MIC
MIC
F602
2661
3n3
F618
2668
47u
F616
MIC
MIC
3665
100R
47u
2663
F620
47u
2664
F605
F621
F606
2665
390p
3685
2K2
MIC
3664
22R
3687
100R
3675
1K
3688
100R
F610
F633
3670
6R8
F634
MIC
F612
5
46
2697
100n
2667
47u
3695-B
10K
3661-A
10K
2
13
-8V
+12V
HP_L
MIC_L
MIC_R
HP_R
2671
470p
-8V
+12V
-8V
+12V
Headphone/Microphone board CDR785, 100300
1491 A1
1492 D1
1690 A10
2661 C3
2662 B3
2663 C3
2664 A3
2665 C4
2666 B4
2667 A4
2668 B4
2671 C5
2672 A5
2673 C6
2674 A6
2680 B10
2681 G2
2682 E2
2683 F3
2684 E3
2685 G4
2686 E4
2687 G6
2688 E6
2689 G7
2690 E7
2695 D7
2696 F6
2697 B9
3661 B8
3663 C2
3664 A2
3665 C3
3666 A3
3667 C4
3668 B4
3669 A5
3670 B5
3671 D5
3672 B5
3673 C6
3674 A6
3675 C7
3676 A7
3677 C2
3678 B2
3681 G3
3682 E3
3683 G4
3684 E4
3685 G4
3686 E4
3687 G5
3688 F6
3689 G6
3690 E6
3695 F8
3696 D7
3697 F7
7650A A5
7650B C5
7680A E6
7680B G6
8600 C10
F601 A2
F602 B2
F603 A2
F604 A9
F605 A9
F606 A9
F607 A5
F608 A9
F609 A6
F610 A8
F611 A10
F612 A4
F613 A9
F614 B10
F615 B9
F616 B5
F617 B5
F618 C6
F619 C8
F620 C2
F621 C4
F622 C5
F623 D6
F624 E2
F625 E4
F626 E2
F627 E7
F628 E8
F629 E6
F630 E6
F631 G5
F632 G7
F633 G8
F634 G6
MIC LEVEL
HEADPHONE
LEVEL
0V
0V
0V
0V
0V
-8,4V
-6,4V
0V
0V
0V
0V
0V
0V
10V
12V +0,6V/-1,2V
-8,4V +/- 0,8V
DC VOLTAGES MEASURED IN
STOP MODE
UNLESS STATED OTHERWISE .
. . . V
V
EVM
12V
0V