12
13
14
15
16
17
18
19
20
12
13
14
15
16
17
18
19
20
A
B
C
D
E
F
G
H
I
J
SUB_WOOFER_OUT
a
470R
27K
3593
a
3n3
2652
22n
3652
3K9
a
390R
3679
2M2
3558
+12A
4M7
3598
3633
5K6
3690
10R
2610
3596
100K
3678
2u2
10p
47u
2640
3615
5K6
M
220K
2618
47R
3650
3638
10K
3635
3608
10K
aa
3672
220K
5K6
3611
2636
7533
BC847B
3606
220K
33n
2602
10K
a
3626
1K
2663
47K
3649
47R
47R
3646
3624
1u
2661
2615
a
3636
10K
1527
YKC21-3416
1
3
2
1n
2579
a
7541
BC847B
220K
3671
3594
27K
470n
a
4K7
3569
a
3640
6K8
a
2M2
3559
3560
4M7
2638
47p
22n
2639
a
NJM4556AM
7515-B
5
6
7
8
4
1u
2664
1n
2662
a
4K7
3570
a
2604
3n3
3613
5K6
47R
3647
+IS
33K
3595
3618
8K2
+12A
a
+IS
2608
100n
8K2
3620
a
3676
100R
2612
1n8
3576
220R
a
22u
2648
a
a
3680
470p
2633
a
2641
100u
3637
47K
+12M
100u
2666
2616
220p
3634
5K6
1K
3625
a
2
3
4
5
6
7
8
9
a
DIPMATE
27
1
100p
2649
220R
3575
a
3691
10R
8K2
3617
2601
33n
3628
220R
10R
3641
2614
1n
a
3K3
3601
a
220R
3627
3639
6K8
3612
5K6
4K7
3642
1n
1K
3682
2613
3K9
3675
470R
3677
a
8K2
3621
a
3622
8K2
3616
5K6
47K
BC847B
7534
5511
3631
820R
2617
470p
7515-A
NJM4556AM
3
2
1
3643
22n
2651
4K7
+IS
1N4148
6515
3681
22R
4u7
2620
47K
3623
3605
220K
3K9
1M
3597
3684
10K
3607
BC847B
7542
BC847B
7528
2599
47u
FE-BT-VK-N
1528
1
2
3
4
5
6
3609
820R
3632
70R
698
2540
220u
+12M
BC847B
7531
2784
100p
0u47
2560
10u
2665
2631
4u7
10K
3610
2580
1n
a
a
22u
2647
2603
2637
47p
2K7
3673
3604
680K
3614
5K6
100p
a
470n
2609
a
8K2
3619
3674
330K
2635
100p
4u7
2619
470p
2605
a
680K
3603
2606
470p
100n
2607
470R
3683
2632
4u7
47R
3648
470p
2634
+12A
470p
+IS
3K3
3602
a
a
3K9
3651
470p
2668
+12M
7532
BC847B
47R
3645
BC817-25
7543
2669
100n
220p
1n8
2611
I2C_DATA
I2C_CLK
Rhp
Lhp
R
L
AMP_ON
MUTE_SW
Left Channel
Right Channel
HPREF
HPREF
HPREF
HPREF
ALC_EN
REF
HPREF
+5V6
+12A
+12M
AMP_ON
+5V6
+8,5V
21
22
8
8
8
8
8
CHIP SELECT
I 2 C BUS
TRANSCEIVER
I/O PORT
DATA LATCHES
PWR
RES
OUT
I/O
IN
SHIFT
REG
8
D
BC327-25
7552
+5V6
100n
2681
5
D1
6
D2
7
M62320FP
7551
16
CS0
15
CS1
14
CS2
4
D0
6531
3693
5K6
BC847B
7553
5K6
3694
D3
9
D4
10
D5
11
D6
12
D7
8 GND
2 SCL
3 SDA
1
SO
13 VDD
2R2
3695
D
D
+5V
10K
3692
D
1K
3699
+5V6
1N4148
3696
2K2
3773
1K
MUTE_LO
+CD
I2C_DATA
I2C_CLK
AMP_ON
CD_ON
ALC_EN
AB
PORE
STANDBY
SET_MUTE
Level left
Level right
Level both channels
ALC
21
22
BC817-25
7535
1K
3662
3657
5K6
3658
3660
4K7
10K
3655
3656
10K
7539
BC857B
BC847B
7537
4u7
2655
BC847B
7538
1K
SET_MUTE
+5V6
4M7
3661
-30V
1N4148
6516
2650
100p
7536
BC817-25
3663
1K
MUTE_SW
30
1
2
3
4
5
6
7
8
AB
CDR_ON
STANDBY
F1
F2
PW_DN
-30V
16
17
18
2
3
4
5
6
7
8
9
1535
1
10
11
12
13
14
15
GND_CD
CDSHDATA
SW_INFO
PW_DN
+5V6
-30V
F2
F1
I2C_CLK
I2C_DATA
NTC
NTC
SA_IN
PW_DN
I2C_CLK
I2C_DATA
SA_IN
STR
CDSHCLK
SICL
SILD
1
2
3
4
1538
19
20
21
22
23
7
8
9
15
16
17
18
2
3
4
5
6
1533
1
10
11
12
13
14
CDC_R
CDC_L
GND_COAX
PORE
+CD
+12
CDC_R
CDC_L
+CD
+12
COAX1
COAX2
SHIELD
GND_TXT
up_CLK
DQSY
SRDT
1537
3
1
2
D
10n
2682
4630
R
L
AF7 Circuit Diagram stage .2 (31 03 2000)
3,4V
12V
12V
6V
4,2V
0,9V
0,25V
3,2V
4,2V
8,3V
0V
0V
2,9V
3,6V
6V
6V
0,6V
0,6V
6V
4,8V
9,3V
1,1V
0,6V
1,1V
9,3V
6V
6V
4,8V
0,6V
-8V
0,7V
0V
0V
5,6V
Voltages measured
during normal operation
(not muted)
0V
-8V
0V
-8V
0V
From Power
Supply Board
To and from
Front Board
To Front Board
To Power amplifier
To Headphone Board
Open if Headphone is connected
To Digital
Switching Board
To and from
CD Board
MUTE CIRCUIT
Incredible Surround Circuit
!
8-5
8-5
0021
E1
0026
H1
0027
D21
0030
H20
1521
A1
1525
C1
1526
H1
1527
F21
1528
C21
1533
G22
1535
G21
1537
H22
1538
G22
2216
F15
2355
D17
2511
E2
2512
E2
2513
D3
2514
F3
2515
D4
2516
F4
2517
F11
2519
E4
2520
F4
2521
E3
2522
F3
2523
C4
2524
C4
2527
C2
2528
D2
2531
G11
2532
G11
2533
C6
2534
H6
2535
C6
2536
I6
2537
B6
2539
I6
2540
J12
2541
C5
2542
I5
2543
G2
2544
H2
2545
H1
2547
G4
2548
H3
2549
A5
2550
I5
2551
J2
2552
I3
2553
J2
2560
G13
2563
D7
2564
G7
2571
B10
2572
H8
2573
B10
2574
H9
2575
B10
2576
H9
2577
C8
2578
G8
2579
C13
2580
G12
2581
H11
2582
H11
2583
H10
2591
C10
2592
H9
2593
B9
2594
I8
2595
A9
2596
H8
2597
B9
2598
I7
2599
G16
2601
E13
2602
E13
2603
C14
2604
E14
2605
C14
2606
F14
2607
B14
2608
E14
2609
D13
2610
F13
2611
D14
2612
F14
2613
D15
2614
F15
2615
C15
2617
C15
2618
F15
2619
B16
2620
F15
2621
J10
2623
C3
2624
C3
2625
C6
2626
I7
2631
C16
2632
E15
2633
C16
2634
E16
2635
B16
2636
F16
2637
C17
2638
E17
2639
F17
2640
F17
2641
J13
2647
B18
2648
E18
2649
D18
2650
D18
2651
E20
2652
E20
2661
F18
2662
G18
2663
F18
2664
F18
2665
F19
2666
F19
2668
F20
2669
G21
2670
D10
2671
C8
2672
G8
2673
C8
2674
G8
2675
D7
2676
G7
2677
E5
2681
I16
2682
H22
2784
I14
2868
C10
2869
C9
2870
G9
2871
C8
2872
G8
2873
C8
2874
G8
2876
I10
3511
E1
3512
E1
3513
D3
3514
F3
3515
D3
3516
F3
3517
E3
3518
F3
3519
J1
3520
J1
3521
C3
3522
C3
3525
C2
3526
C2
3527
G2
3528
H2
3529
H4
3530
H3
3531
C6
3532
H6
3533
C6
3534
I6
3535
B6
3536
H6
3537
B6
3538
H6
3539
I6
3540
H4
3541
C5
3542
I5
3543
A6
3544
J6
3545
B1
3546
B1
3547
B1
3548
B1
3550
H4
3551
J2
3552
J2
3553
J3
3554
I3
3555
I3
3556
J3
3557
J3
3558
I14
3559
I14
3560
I14
3563
B6
3564
J7
3565
C8
3566
G8
3569
I12
3570
J12
3571
B10
3572
I8
3573
B10
3574
I9
3575
C13
3576
G13
3577
E11
3578
E11
3579
H1
3580
G11
3581
C9
3582
H9
3583
C9
3584
H9
3585
A10
3586
H9
3587
A10
3588
J9
3589
B9
3590
I8
3591
B9
3592
I7
3593
F15
3594
F16
3595
G14
3596
H14
3597
G13
3598
I14
3599
C10
3601
D12
3602
F12
3603
C13
3604
E13
3605
C13
3606
F13
3607
B14
3608
E14
3609
C14
3610
F14
3611
E13
3612
E13
3613
D13
3614
F13
3615
D14
3616
G13
3617
D14
3618
F14
3619
D14
3620
F14
3621
C14
3622
E14
3623
C15
3624
E15
3625
C15
3626
E15
3627
C15
3628
E15
3631
B16
3632
E16
3633
C16
3634
E16
3635
B16
3636
F16
3637
C16
3638
E16
3639
C17
3640
E17
3641
F17
3642
I13
3643
J13
3645
B17
3646
E17
3647
B18
3648
E18
3649
D20
3650
E20
3651
E20
3652
E20
3655
D16
3656
D16
3657
D17
3658
D17
3660
D17
3661
C18
3662
D18
3663
D18
3667
C3
3668
C3
3671
E19
3672
E19
3673
E19
3674
F18
3675
F18
3676
G18
3677
F18
3678
F19
3679
G19
3680
F19
3681
F20
3682
G19
3683
F20
3684
F20
3686
E1
3687
F1
3688
F3
3689
E3
3690
F15
3691
F16
3692
J16
3693
I15
3694
I16
3695
I15
3696
J16
3697
E11
3698
E12
3699
J17
3773
I14
3929
J10
4517
E5
4518
F5
4535
C2
4536
C2
4578
H6
4618
B2
4619
B2
4630
I20
5511
F17
5734
F15
6512
H10
6514
I10
6515
H14
6516
D18
6531
I16
7511
D6
7512-AC6
7512-BI6
7513-AA9
7513-BH8
7515-AB17
7515-BE17
7521
G3
7522
H3
7523
A10
7524
I9
7525
G10
7526
J3
7527
J3
7528
H14
7529
H4
7531
C14
7532
F14
7533
D15
7535
D18
7536
D18
7537
D17
7538
D17
7539
D17
7541
G18
7542
F19
7543
F19
7551
H17
7552
I15
7553
J16
www.freeservicemanuals.info
2/4/2018
Digitized in Heiloo Netherlands