Philips LX9000R Service Manual page 79

Circuit Diagrams and PWB Layouts
1 2 3
ASP BOARD
A
*
3604
2600
220R
3600 3605
MDM_SL
B 220R
4K7
1u
1603 GND_A
3601
4K7
2601
3602 3606
MDM_SR
220R
4K7
1u
1603 GND_A
3603
4K7
2602
*
3607
LINE_L
C 220R
56n
for test reasons only
2603
3609
LINE_R
220R
56n
D
E
2650
3650
3654
MDM_CENTRE
4K7 220R
1u
1603 GND_A
3651
4K7
2651
MDM_SUB
3652 3655
F
MDM_SUB
10u 35
1K0 220R
1603 GND_A
* 2654
3653 3656
220R
3K3 33n
2652 3657 LINE_L
4650
LINE_L
10u 35
* 4K7
4651
*
XLINE_L
2653 2655 3658
4652
LINE_R
10u 35
220R
33n
*
4653
G *
XLINE_R
9,2V
+9V2 +9V2
12V
+12V_A +12V_A
3640 F683
12V
+C_OPAMP
22R
H
HP_A
9V
9V_TUNER 9V_TUNER
F684
3641 5,9V
C_REF
4K7
I
GND_A GND_A
F686
3643 5,9V
S_REF
4K7
GND_A GND_A
1 2 3
LX9000R
4 5 6
SURROUND
GND_A
F676
*
XLINE_L
2609
100p
+9V2
GND_A
4,6V 4,6V 4,6V
7604
7 8 9
4,6V
27
VOLUME I TREBLE
9,2V
1
POWER SUR.
F675 SUPPLY LEFT LEFT
0V
28
GND_A
4,6V 3
TDA7468
4,6V
MDM_SL 4
SOURCE
4,6V
5
SELECTOR
LOGIC
4,6V 6
4,6V 2
4,6V
23
4,6V
24
VOLUME I
TREBLE
4,6V 25
SUR.
MDM_SR
RIGHT RIGHT
4,6V 26
22 21 20
4,6V 4,6V 4,6V
F677
*
XLINE_R
GND_A
SUBWOOFER /
GND_A
CENTRE
GND_A
2659
3659
+9V2 4K7
330n GND_A
7654 4,6V 4,6V 4,6V
LINE_R
7 8 9
4,6V
27
VOLUME I TREBLE
9,2V
1
POWER SUR.
F678 SUPPLY
LEFT LEFT
0V
28
GND_A
4,6V
3
TDA7468
4,6V
MDM_CENTRE
4
SOURCE
4,6V
5
SELECTOR
LOGIC
4,6V 6
4,6V
2
4,6V
23
4,6V
24
VOLUME I TREBLE
4,6V 25
SUR.
RIGHT RIGHT
4,6V 26
22 21 20
4,6V 4,6V 4,6V
for test reasons only
GND_A
GND_A
4 5 6
7. EN 79
7 8 9
*
2616
100n
*
3616
10K
*
2617
4,6V 4,6V 100n
10 11 2618 3612
GND_A S_REF
10K
1n
2619
BASS VOLUME II
3613 F679 3614
12 4,6V
LEFT LEFT 220R 470n 50V 220R
2621
GND_A
4620
ALC_SUM
1n
*
2604
16 4,6V
BASS ALC
S_REF
470n GND_A
4,8V 3619
14
AF_I2C_SCL3
IIC BUS 1K0
4,8V 3622
15
AF_I2C_SDA
1601
1K0
0V
REC 13
3632
S_REF
GND_D
2639
VOLUME II
BASS 3633 F680 3634
4,6V
17
RIGHT RIGHT 220R 470n 50V 220R
2641
GND_A 1n
19 18
4,6V 4,6V *
2631
S_REF
GND_A
100n
*
3630
10K
*
2632
100n
*
2666
100n
*
3660
10K
*
2677
100n
4,6V 4,6V
10 11 2668
3662
GND_A C_REF
10K
1n
2669
BASS VOLUME II F681
3663 3664
12 4,6V
LEFT LEFT 220R 470n 50V 220R
2671
GND_A
*
4640
ALC_SUM
1n
2673
16 4,6V
BASS ALC
C_REF
470n
GND_A
4,8V 3673
14
AF_I2C_SCL2
IIC BUS
1K0 3674
15 4,8V
AF_I2C_SDA
1601
1K0
REC 13 0V
GND_D
VOLUME II
BASS *
3683 2689 *
17 4,6V 4685
F682 3K3
RIGHT RIGHT 10u
2684 2685
19 18
220n 220n
4,6V 4,6V
3686
GND_A
C_REF
22K
2637 3685
-1,1V
4625
10K
XHIGHPASS_OFF 3666 330n
* BC847B
3680 2K2
7655
Low pass
1K0
* on/off
2683
GND_A
470n
*
GND_A
GND_A GND_A
7 8 9
10 11 12
*
4610
+C_OPAMP
12V
5,9V
2627
3627
3 1 5,9V
2620
2
100R
47u
5,9V 7600-1 MUTE
100p NJM4556AM
BC817-25
SURROUND
7601
HP_A
2622
3615 3620
10K 3618 1K0
100p
6K8
*
4630
3621
GND_A
1K0
7602
+C_OPAMP BC817-25
12V
5,9V
2647
3647
5 7 5,9V
2640
6
100R
47u
5,9V 7600-2
100p
NJM4556AM
HP_A
2633
3635
10K 3638
100p
GND_A
6K8
100 Hz 20 kHz
*
4660
+C_OPAMP
12V
5,9V
2667
3667
1
3 5,9V
2670
2 0V
100R 47u MUTE CENTRE
7650-1
5,9V
100p
NJM4556AM -1,5V 5V
HP_A
3665 2672
BC817-25
7652
7651
BC857B
10K
3668
100p
GND_A
6K8
5V
F685
40 Hz 100 Hz
-1,6V
3684
3623
10K
+C_OPAMP
10K
7650-2
NJM4556AM
12V GND_D
3702
5,9V
2687
3687
5 7 5,9V 4,8V
1K0
6
100R 47u
5,9V
3670
4,8V
1K0
HP_A
BC817-25
MUTE
3688 7653
SUBWOOFER
2K2
GND_A GND_A GND_A
2692
10n
*
* *
2694 3624 3700
1K0 470R
16V 10u
* * *
7603
3701
BC847B
1K0
MUTE
GND_A GND_A GND_A
V EVM
...V DC voltages measured in Stop mode
* ... provisional
10 11 12
13 1605 H13 3633 C8
2600 B2 3634 C9
2601 B2 3635 C9
2602 C2 3638 C10
2603 C2 3640 H2
2604 B8 3641 I2
2606 A3 3642 I2
2607 A3 3643 I2
2608 A4 3644 I2
2609 A5 3647 C11
A
2610 D3 3649 C11
2611 D4
3650 E2
2612 D4 3651 F2
2613 D4 3652 F2
2614 D4 3653 F2
2615 A6 3654 E3
2616 A7 3655 F3
AMP_SL
2617 A7 3656 F3
1621
2618 A8 3657 F3
2619 A9 3658 G3
2620 A10 3659 D5
XMUTE_ALL 2621 B9 3660 D7
2622 B10 3661 D7
B
2623 B8 3662 E9
100 Hz 20 kHz
2624 B8 3663 E8
2625 G6 3664 E9
2627 A11
3665 E9
2630 C6 3666 G8
2631 C7 3667 E11
2632 D7 3668 F10
2633 C10 3669 E11
2637 G8 3670 G12
2638 C8 3673 F8
AMP_SR
2639 C9 3674 F8
1621 2640 C10 3675 E12
C
2641 C9 3676 E12
2642 H2 3677 F12
2643 I2 3680 G7
2644 I2 3681 H6
2647 C11 3682 H7
2650 E2 3683 F8
2651 F2 3684 F9
2652 F2 3685 G9
2653 G2 3686 G9
2654 F3 3687 F11
2655 G3 3688 G10
D 2656 E3 3689 G11
2657 E3 3692 H11
2658 E4 3700 H12
2659 D5 3701 H12
2660 G3 3702 F9
2661 G4 4610 A10
2662 G4 4620 B8
2663 G4 4625 G7
2664 G4 4630 B10
2665 D6 4640 E8
2666 D7 4650 F2
2667 E11 4651 G2
E
AMP_CENTRE 2668 E8 4652 G2
1620 2669 E9 4653 G2
2670 E10 4660 E10
+5V_STBY
2671 E9 4685 F9
2672 E10 7600-1 B10
2673 E8 7600-2 C10
2674 F8 7601 B12
2675 F8 7602 B12
2676 E12 7603 H12
2677 D7 7604 A4
2680 G6 7650-1 E10
2681 G6 7650-2 F10
F
2682 G7 7651 E12
MUTE_CENTRE
2683 H7 7652 E12
2684 G9 7653 G12
2685 G9 7654 E4
2686 G9 7655 G8
AMP_SUB
2687 F11 F674 H12
1621
2688 G8 F675 A4
2689 F8 F676 A5
2690 G9 F677 C5
XMUTE_ALL
2691 H8 F678 E4
2692 G10 F679 A8
G 2693 G11 F680 C8
2694 H10 F681 E8
2695 H11 F682 F8
3600 B2 F683 H2
F684 I2
3601 B2
3602 B2 F685 F12
* 3603 C2 F686 I2
1605
*
F674
1 3604 B3
SWPRE
3605 B3
2
3606 B3
* GND_A
3607 C3
EH-S 3608 C3
H
3609 C3
3610 B2
GND_A 3611 A3
3612 A9
3613 A8
3614 A9
3615 B9
3616 A7
3617 A7
3618 B10
3619 B8
3620 B12
I
3621 B12
3622 B8
3623 F12
3624 H11
3627 A11
3628 G11
3629 B11
3630 C7
ASP board LX9000R, 020703
3631 C7
3632 C9
13