
Circuit Diagrams and PWB Layouts
7.
IBO Zapper Panel: Analog Back End
DIGITAL
DE-EMPHASIS
INTERPOLATION
DAC
NOISE SHAPER
FILTER
INTERFACE
DAC
ANALOG BACK END
K1
K1
K1
K1
K1
K1
K1
K1
K1
K1
8V8
8V2
3V8
2V7
2V1
8V8
8V2
3V8
2V7
2V1
1V8
4V
4V7
2V5
3V1
11V6
1V5
2V1
7V
7V7
0V
0V6
0V6
1V
1V6
3V3
3V3
1V6
1V6
1V6
K1
RES
RES
RES
RES
K1
K1
1V8
4V
4V7
0V
0V6
RES
1V8
4V
4V7
0V
0V6
7V7
RES
RES
RES
RES
RES
1
2
3
4
5
6
7
8
9
10
11
12
13
1
2
3
4
5
6
7
8
9
10
11
12
13
A
B
C
D
E
F
G
H
I
A
B
C
D
E
F
G
H
I
1500 C13
2500 A7
2501 A6
2502 A3
2503 C7
2504 A3
2505 B7
2506 B5
2507 C5
2508 C8
2509 A12
2510 A12
2511 D3
2512 D4
2513 D8
2514 D6
2515 D6
2516 A8
2517 A9
2520 E3
2521 F4
2522 F3
2523 F3
2524 G3
2525 G3
2526 G3
2527 H3
2528 A11
2529 G5
2530 H3
2531 H2
2532 I3
2533 D9
2534 B9
2535 H4
2536 I4
2537 I2
2538 I3
2543 A5
2544 A4
2550 E5
2551 E5
2557 E8
2558 E8
2559 E10
2560 F10
3500 A6
3501 A6
3502 A5
3503 B6
3504 A3
3505 B6
3506 B5
3507 C5
3508 A3
3509 C7
3510 C6
3511 C7
3512 A11
3513 A11
3514 D7
3515 D6
3516 D7
3517 D6
3519 F2
3520 G2
3521 H2
3522 I2
3523 A11
3526 D8
3527 B8
3528 A5
3530 G4
3533 H3
3539 I3
3543 G7
3544 H9
3545 I11
3547 F3
3548 E7
3557 E5
3558 E5
3559 E6
3560 E4
3561 E6
3562 F5
3569 E8
3572 D7
3573 D12
3574 D12
3575 E11
3576 E12
3577 E12
3578 E10
3579 E11
3580 E12
3581 F10
3582 F11
3583 F6
3584 F7
3585 F8
3586 G7
3587 G7
3588 G8
3589 G8
3590 G9
3591 H9
3592 H9
3593 H10
3594 H11
3595 H12
3596 I11
3597 I12
3598 E12
4503 F6
4505 E8
4506 D7
4507 B2
4508 H6
4509 I8
4510 I11
4511 E7
4512 E13
5502 A4
5504 E4
5505 G4
5507 H4
5508 I4
5511 E3
5512 G3
5513 H3
5514 I3
5515 A8
5528 A5
6503 E5
6507 D13
6508 E13
6509 G6
6510 H8
6511 I10
6512 G6
6513 H8
6514 I10
6515 E13
7500 A7
7501 B6
7502 A3
7503 C7
7504 C7
7507 E7
7511 E6
7512 E5
7518 D12
7519 E11
7520 F12
7521 G5
7522 G7
7523 F7
7524 H7
7525 H9
7526 G9
7527 I9
7528 I11
7529 H12
F500 B2
F501 C4
F502 B2
F503 B2
F505 A12
F506 A12
F507 A12
F509 E13
F512 D5
F514 E9
F516 D13
F517 B13
F518 G10
F519 G12
F521 H12
I500 A6
I501 A3
I502 A6
I503 B5
I504 B7
I505 B7
I506 B6
I507 B4
I508 B5
I509 B4
I510 C2
I511 C7
I512 C7
I513 C6
I514 D7
I515 C4
I516 D8
I517 D7
I518 D6
I520 G2
I521 G2
I522 G2
I523 G2
I524 A3
I526 H7
I528 H4
I529 H9
I531 I4
I532 E3
I533 G4
I534 H3
I535 I3
I537 E8
I538 E4
I539 F7
I540 H11
I541 G5
I542 G6
I543 D5
I544 E5
I545 E5
I546 E6
I547 F6
I548 E5
I549 F5
I550 H8
I551 G5
I552 I11
I553 G7
I554 F8
I557 I9
I558 G9
I559 H11
I560 G9
I561 H12
I562 D12
I563 D13
I564 D11
I565 E12
I566 E12
I567 E13
I568 E10
I569 E11
I570 E11
I571 F12
I572 F10
I573 F11
I574 F12
RES
RES
RES
RES
TO SSB
11V2
0V
0V
0V
9V6
1V8
1V2
1V8
1V2
1V8
1V2
VOLTAGE MEASURED IN SDM MODE
RES
RES
I520
4512
BZX384-C12
6515
6514
BAS316
1K0
3598
6513
BAS316
6512
BAS316
4511
3545
390R
3544
390R
3543
390R
3595
68R
I552
+5V_amp
I561
I559
I557
7529
BC857B
BAS316
BC857B
7527
6511
3596
220R
4510
3593
2K2
3594
270R
I540
7528
BC847B
3597
68R
3590
I560
+5V_amp
I558
BC857B
7526
7524
BC857B
BAS316
6510
220R
3591
4509
270R
3589
2K2
3588
3592
BC847B
7525
I568
I572
I569
I573
I570
I574
I566
I571
I565
I564
I567
I562
I563
+12V_A
22p
2560
2559
22p
7518
BC857B
7520
BC847B
7519
BC847B
6508
BAS316
3576
820R
3577
820R
1K0
3580
10K
100K
3575
3579
10K
3582
3578
75R
75R
3581
+5Vclean
+5V_amp
2517
100n
16V
100u
2516
1K0
5515
3574
150R
+5V_amp
3573
6507
BAS316
150R
4507
4506
560R
3572
2558
100n
16V
10u
2557
3585
68R
4505
5528
2544
100n
+12V_A
+5V_amp
+3V3clean
+12V_A
+12V_A
I553
I537
+3V3
I554
I547
I551
I550
I539
3569
68R
I546
I549
I543
I545
I548
7523
BC857B
I544
BAS316
BC857B
7521
6509
3586
220R
4508
3583
2K2
3584
270R
BC857B
7511
7512
BC847B
BAS316
6503
220n
2550
1u0
2551
4503
270R
3561
150R
3562
680R
3559
1K0
3558
100K
3557
27K
3560
32
4
5
6
7
8
9
33 34
22
23
24
25
26
27
28
29
3
30
31
13
14
15
16
17
18
19
2
20
21
1500
AF732L-N2G1A
1
10
11
12
I542
I541
I538
7522
BC847B
3587
3547
47R
BC847B
3548
560R
7507
I535
I534
I533
I529
I532
I526
I531
I528
3539
47R
47R
3533
47R
3530
I524
2543
47u 16V
3528
10R
2503
100p
2501
100p
3504
2R2
3508
2R2
F509
75R
3527
3526
75R
3523
75R
BC857B
7503
7500
BC857B
3509
1K0
3500
1K0
2528
22p
22p
2533
2534
22p
I509
I510
I507
I515
2511
2512
47u
16V
100n
F502
F503
F500
13
VDDA
4
VDDD
14
VOL
16
VOR
12
VREF-DAC
15
VSSA
5
VSSD
2
WS
1
BCK
3
DATAI
9
DEEM
8
MUTE
10
PCS
11
SFOR0
7
SFOR1
6
SYSCLK
UDA1334BTS
7502
F507
I518
I508
I512
I503
I502
F501
I500
I506
I505
I504
68K
3502
820R
2500
3501
1u0
1u0
2505
3503
1K0
820R
33K
3505
1u0
3506
2506
4n7
2507
1K5
3507
BC847B
7501
F512
I513
I517
I511
I516
I514
3511
3510
68K
2508
1u0
820R
1u0
2513
1K0
3516
3514
3515
820R
2514
33K
1u0
2515
4n7
1K5
3517
7504
BC847B
I501
5502
100n
2502
100n
2504
22p
2529
2536
22p
22p
2535
2521
22p
2509
100p
2510
100p
22p
2532
2527
22p
22p
2524
22p
2520
F519
F521
F518
F514
F506
F505
F516
F517
5508
5507
5505
5504
2538
68p
2537
180p
2530
68p
180p
2531
68p
2526
2525
68p
180p
2522
180p
2523
3512
100R
100R
3513
3520
180R
3u3
5512
3u3
5514
180R
3522
3519
180R
5511
180R
3521
3u3
5513
3u3
I522
I523
I521
AR1
AR2
BLUE|U
RED|V
CVBS_VCR
TV_IRQ
MOJO_SYSCLK
IRQ
R1
L1
SDA
I2C_TV_SDA
I2C_TV_SCL
SCL
MOJO_I2S_OUT_SCK
MOJO_I2S_OUT_WS
MOJO_I2S_OUT_SD
C_CVBS
G|Y
B|Pb
R|Pr
K5
K5
3139 123 6147.1
G_16220_015.eps
070206