Schematic Diagram - Digital Audio Section (2/2) - Sony STR-DG820 Service Manual

6-21. SCHEMATIC DIAGRAM - DIGITAL AUDIO Section (2/2) -

1 2 3
(2/2)
DIGITAL AUDIO BOARD
A
1
2
3
4
5
6
7
B
8
21
9
10
DIGITAL
AUDIO
BOARD
(1/2)
(Page 34) 11
12
13
C
14
15
16
17
D
E
F
G
IC2234
SWITCHING
IC2234
TC7SZ08FU(TE85R)
1 VCC 5
2
3 4
GND
H
22 18
19
DIGITAL 20
AUDIO
21
BOARD
(1/2)
22
(Page 34)
I
C2422
100
16V
J CN2226
18P
DMPORT
JL2743
P GND 1
FB2224
JL2742
VBUS +5V 2
JL2755
NC 3
FB2223
JL2741
VIDEO +5V 4
JL2740 R2524 22
DMPORT_RX 5
JL2739 R2522 22
DMPORT_TX 6
K JL2738 R2523 22
DET 7
JL2737
DGND 8
JL2756
WM_DET 9
JL2736
WM_AD 10
JL2735
L- 11
JL2734
R- 12
JL2732 R2519 0
L+ 13
JL2729 R2520 0
R+ 14
L JL2727
WM_RXD 15
WM_TXD 16
JL2726
DMPORT_VIDEO 17
JL2725
VGND 18
CN2227
3P
JL2757
AB
M
VGND 1
JL2758
2
DMPORT_VIDEO
JL2759
VIDEO
3
VGND
BOARD
CNP242
(Page 41)
STR-DG820
•See page 48 for IC Block Diagrams.
4 5 6 7 8
IC B/D
IC2233
IC B/D
A/D CONVERTER 48
IC2233
C2258 PCM1808PWR
100
16V
C2256
1 14
VREF VINR
100
1 ZERO1
16V
2 AGND VINL 13 2 ZERO2
3 ZERO3
3 12
AVCC FMT
4 ZERO4
C2377
0.1
4 DVDD MD1 11 5 ZERO5
C2257
0.1
6 ZERO6
5 10
DGND MD0
R2288 7 NC
100
6 SCKI DOUT 9 8 NC
R2432
220 9 VOUT6
7 8 C2409
LRCK BCK
R2260 0.01 10 VOUT5
47
11 VOUT4
R2262 12 VOUT3
47
C2439 C2438
10 10
13 14 15 16 17 18 19 20 21 22 23 24
50V 50V C2253
0.01
C2255 0.01
FB2211 FB2213
C2262
47 C2361 R2298 R2299
25V
2700p 100k
IC2219
NJM4565M(TE2)
5
6
7
C2369
270p
8
VCC
IC2219
LINE AMP
R2551 R2550
100 100 IC B/D
IC2230
+5V REGULATOR
4 VOUT
5 VIN ON/OFF
IC2230
TK11150CSCL-G
9 10 11 12 13
FB2220
FB2215
C2407
R2513
0.1 1k
R2515
47
R2514 R2381 C2408
100 0.01
10k
C2243
R2512
10k 100
16V
47 46 45 44 43 42 41 40 39 38 37
R2310
100
ML 36
MC 35
MDI 34
R2511 100
MDO 33
IC2238
ZERO8 32 R2378
100
D/A CONVERTER DATA4 31
IC2238
ZERO7 30
PCM1609APT
NC 29
14 13 12 11 10 9 8
IC2232
VCC1 28
AGND1 27
MUTING
VCC2 26
IC2232
TC74VHC08FT(EL)
SGND2 25
1 2 3 4 5 6 7
C2404
470 10V
C2283 C2363 R2313 R2314 C2297 C2365 R2323 R2324
100k 1000p 2700p 100k 100k 1000p 2700p 100k
IC2220 IC2221
NJM4565M(TE2) NJM4565M(TE2)
VEE 4 5 VEE 4 5
3 6 3 6
2 7 2 7
C2374
C2370
270p 270p
1 8 1 8
VCC VCC
C2372 C2373
270p
270p
IC2220 IC2221
LINE AMP LINE AMP
R2287
10k
NC 3
GND 2
1
35 35
14 15 16 17
CN2213
18P
JL2660
R2527 0
JL2661
R2531 0
JL2662
R2479 0
JL2663
R2532 0
JL2664
R2536 0
JL2665
R2535 0
JL2666
R2534 0
JL2667
R2482 0
JL2668
R2528 0
JL2669
R2530 0
JL2670
R2413 0
JL2671
R2533 0
JL2672
R2537 100
JL2673
R2538 100
JL2675
JL2676
JL2674
JL2684 JL2678
R2379 JL2682 JL2680
100
C2246 C2250
0.1 0.1
R2409
10k
Q2205, 2206
MUTING
SWITCH
Q2205
IC B/D RT1N141C-TP-1
5 6 7 8
IC2226
MUTING CONTROLLER
C2329 220p
IC2226 Q2206
TC7WH74FU(TE12R) 2SC3052EF-T1-LEF
4 3 2 1
R2375
R2408 10k
100
R2376
10k
C2305 C2368 R2342 R2344 C2317
100k 1000p 2700p 100k 100k 1000p
C2314
10
50V
IC2222
NJM4565M(TE2)
CN2222
VEE 4 5 VEE 4
13P
JL2683
3 6 3
JL2685
2 7 2 JL2760
C2375
270p JL2686
1 8 1
VCC
C2371 C2376 JL2761
270p 270p
FB2214
JL2687
JL2690
IC2222
R2333 1k JL2762
LINE AMP R2355 1k JL2692
R2328 1k JL2764
JL2763
R2320 1k JL2697
R2318 1k JL2700
CN2223
15P
R2308 1k JL2703
FB2212 JL2704
R2305 1k JL2705
R2294 1k JL2706
JL2707
JL2549 JL2767
JL2708
JL2709
JL2677 JL2679 JL2681 JL2768
10
JL2710
11
JL2711
12
JL2712
13
JL2713
14
JL2714
15
STR-DG820
18 19 20 21 22
CONNECTOR BOARD
CN2031
CN2231
18P
18P
JL2421
1 DIR_DO DIR_DO 1 1 DIR_DO
JL2422
DIR_ERROR DIR_ERROR 2 2
2 DIR_ERROR
JL2423
DIR_CKST 3 3
3 DIR_CKST DIR_CKST
JL2424
4 4
4 DIR_DATA DIR_DATA DIR_DATA
JL2425
5 5
5 DMPORT_RX DMPORT_RX DMPORT_RX
JL2426
6 6
6 DMPORT_TX DMPORT_TX DMPORT_TX
JL2427
7 7
7 DMPORT_DET DMPORT_DET DMPORT_DET
JL2428
8 8
8 DAC_MUTE DAC_MUTE DAC_MUTE
JL2429
9 9
9 ANA_DIGI ANA_DIGI ANA_DIGI
JL2430
10 10
10 DA_RESET DA_RESET DA_RESET
JL2431
11 11
11 DA_ML DA_ML DA_ML
JL2432
12 12
12 DA_MDO DA_MDO DA_MDO
JL2433
13 13
13 PROTECTOR PROTECTOR PROTECTOR
JL2434
14 14
14 VOL_IC_DATA VOL_IC_DATA VOL_IC_DATA
JL2435
15 15
15 VOL_IC_CLK VOL_IC_CLK VOL_IC_CLK
JL2436
16 16
16 GND GND GND
JL2437
17 17
17 TUNER_L TUNER_L TUNER_L
JL2438
18 18
18 TUNER_R TUNER_R TUNER_R
CN2030 CN2232
18P 18P
JL2401
FSRATE 1 1 FSRATE
JL2402
2
HDMI_NON_PCM 2 HDMI_NON_PCM
JL2403
3
HDMI_ERROR 3 HDMI_ERROR
JL2404
4
SPI0_CE# 4 SPI0_CE#
JL2405
5
SPI0_MOSI 5 SPI0_MOSI
JL2406
6
DSP_RESET 6 DSP_RESET
JL2407
7
DSP_INT 7 DSP_INT
AA JL2408
8
SPI0_MISO 8 SPI0_MISO
JL2409
9
SPI0_ENA# 9 SPI0_ENA#
DIGITAL JL2410
AUDIO SFLASH_CE# 10 10 SFLASH_CE#
JL2411
BOARD
SPI0_HOLD# 11 11 SPI0_HOLD#
(1/2)
JL2412
CN2219
SPI0_CLK 12 12 SPI0_CLK
(Page 34) JL2413
DIR_HDMI_SELECT 13 13 DIR_HDMI_SELECT
JL2414
DIR_XMODE 14 14 DIR_XMODE
JL2415
COM1_CLK 15 15 COM1_CLK
JL2416
DIR_CE 16 16 DIR_CE
JL2417
COM1_DATA 17 17 COM1_DATA
JL2418
RESERVED 18 18 RESERVED
1 VOL IC CLK
2 VOL IC DATA
3 VACS CTRL
4 PROTECTOR
5 +7V
A
6 -7V
7 FR OUT
MAIN
BOARD
8 AGND
(2/3)
CNP410
9 FL OUT
(Page 22)
10 SW
11 AGND
12 C OUT
13 SR OUT
1 AGND
2 SL OUT
3 +7V
4
SBR OUT
5 SBL OUT
6 L IN
B
7 AGND
8 R IN
MAIN
BOARD
9 TUNER R
(2/3)
CNP411
AGND
(Page 22)
TUNER L
DMPORT L-
DMPORT R-
DMPORT L+
DMPORT R+
AE
MICOM
BOARD
CN7001
(Page 37)
AD
MICOM
BOARD
CN7000
(Page 37)