Schematic Diagram - Main Board (1/3) - Sony STR-DA2800ES Service Manual

5-23. SCHEMATIC DIAGRAM - MAIN Board (1/3) -

1 2 3
MAIN BOARD (1/3)
A
CN300
5P
CL300
>07S D-AU_GND 5
D-AU_GND 4
CL301
D-AUDIO
D+4.0V 3
BOARD
CL302
(2/2) DSP+1.8V 2
CN2401
DSP+1.8V 1
(Page 61)
B
CN302
22P
CL320
DD GND 22
CL321
DD +5.5V 21
CL322
DD GND 20
CL323
DCDC(TRIG)+12V 19
DCDC(TRIG)+12V 18
CL324
C
TRIG+12V_GND 17
CL325
Limitter 16
CL326
A+7V 15
CL327
14
A7V-CT_GND
CL328
13
>08S A-7V
CL329
12
NET_AD_R
CL330
CONTROL
11
NET_AD_A_GND
BOARD CL331
(2/2) 10
NET_AD_L
D
CN2515
9
(Page 73) A_GND
CL332
NET_R 8
NET_A_GND 7
CL333
NET_L 6
A_GND 5
CL334
TUNER_R 4
TUNER_A_GND 3
CL335
TUNER_L 2
E
A_GND 1
CN305
12P
CL428
+12V 1
NC 2
CL427
GND+12V(RYGND) 3
GND(DCDCMAIN) 4
F
GND(DCDCMAIN)
>09S 5
CL426
+5V
6
CL425
DCDC
GND+5V
7
BOARD CL424
CN1405 +1.8V
8
CL423
(Page 110)
GND+1.8V
9
CL422
+5.5V
10
CL421
GND+5.5V 11
CL420
PT STOP 12
G
CN301
19P
CL303
+7V 19
CL304
–7V 18
CL308
ADCL 17
CL319
C301
AGND 16 10
CL309
50V
ADCR 15
H C300
AGND 14 10
CL310
50V
DAC FR 13
CL311
DAC FL 12
CL312
>06S
11
DAC SW
CL313
10
DAC C
D-AUDIO
CL314
BOARD 9
DAC SR
(2/2) CL315
8
CN1114 DAC SL
CL316
(Page 61)
7
DAC SBR
I CL317
6
DAC SBL
CL318
5
DCAC
AGND 4
CL305
BT_R 3
CL307
AGND 2
CL306
BT_L 1
J
CN306
9P
CL402
–7V 1
NC 2
CL403
+7V 3
>10S
CL404
VIDEO2_R 4
CL405
A-VIDEO
HP_SW 5
BOARD CL406
(1/2) VIDEO2_GND 6
CL407
CN6506
K
VIDEO2_L 7
(Page 76)
CL408
MIC_L 8
GND 9
L
0.6
Q311
2SC3052EF-T1-LEF
RELAY DRIVE
0
M
STR-DA2800ES
• See page 115 for IC Block Diagrams.
4 5 6 7
MAIN MAIN
(Page 66) (Page 67)
>101S >102S
BOARD BOARD
(2/3) (3/3)
C332
0.1
C323
0.1
C321 C322 R320 R321 R326
2200p 2200p 220 220 100
R319 0
R318 0
R317
0
R315
0
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
80 GND
0
79 SUB1 L
0
CL438
78 SUB1 R
77 GND
0
76 ADC LOUT
0
75 ADC ROUT
CL439 74 GND
0
73 FRIN
0
IC300
72 FLIN
0
71 SWIN
0 AUDIO INPUT SELECTOR
70 CIN
IC300
0
BD3471KS2
69 SRIN
0
68 SLIN
0
67 SBRIN
0
66 SBLIN
65 GND
0
64 INR1
0
63 INL1
0
62 INR2
0
61 INL2
60 59 58 57 56 55 54 53 52 51 50 49 48 47 46
8 9 10 11
CL368
0 7
8 CL VCC 7
CL369 C331
2200p
0
9 DA AGND 6
C334
2200p
-7
10 MUTE VEE 5
11 DGND AGND 4
CL372
-7 0
12 SEL IN 2 3
CL373
R327
0
100
13 OUT 2 AGND 2
CL371 CL370
0 0
14 OUT 1 IN 1 1
C336
100p
IC301
C337
100p
ELECTRICAL VOLUME
C335 C338 IC301
C327
22 22 BD3812F-E2
100p
50V 50V
R333
C326
R332
4.7k
100p
100
R330
100
R329 R328 R331
100k 4.7k 100k
C328 C339
-2 -1
10 – 0.1
50V
RY301
+
D301
DA2J10100L
RY300
R324
100k R323
GND 21
47k
GND 22
0
SUB2L 23
0
SUB2R 24
0
RECL3 25
0
RECR3 26
RECL2 27
RECR2 28
0
RECL1 29
0
RECR1 30
GND 31
0
SBL IN2 32
0
SBR IN2 33
SL IN2 34
SR IN2 35
C IN2 36
SW IN2 37
FL IN2 38
FR IN2 39
GND 40
45 44 43 42 41
65 65
12 13 14 15
BRIDGE
LR
R334
4.7k R335
10k
C
0.6 SUR
SBL_R
0
Q300
2SC3052EF-T1-LEF
RELAY DRIVE
R336
2.2k R338
47k
0
10.7
Q301
2SC3052EF-T1-LEF
IC302
RELAY DRIVE
-7V REGULATOR
IC302
KIA7907PI
-7 -10.9
O I
2 1
G
C340 C342 C345
470 470p 3 1
16V
D305
C341 C343 C344
P6SMBJ33A-5
3
470 470p 1
16V
COM
7 10.7
O I
R337
2 1
100
IC303
+7V REGULATOR
R325
IC303
100
KIA7807API-U/PF
R366
2.2k
R322
1k
CL401
CL400
CL399
CL398
CL397
CL396
CL360
C310
4.7
50V
CL395
C308
4.7
50V
CL394
CL393
CL392
CL391
CL390
R367
47k
STR-DA2800ES
16 17 18 19
CN303
22P
22 FL+12V
21
FL_GND
CL336
20
4/8_RY
CL337
19
SP_A_RY
CL338
18
SP_B_RY
CL339
17
C_RY
CL340
16
SR_RY
CL341
15
SB_RY
CL342
14
HP_RY
CL343
13
SW RY >11S
CL344
12
2ND_RELAY
CL345
EVOL_CLK
CONTROL
11
EVOL_CLK
BOARD
CL346
EVOL_DATA
10 (1/2)
EVOL_DATA
EVOL_2ND_CLK CL347
CN2701
9 COM2_CLK
(Page 72)
EVOL_2ND_DATA CL348
8 EVOL_2ND_DATA
CL349
7 PROTECTOR
CL350
6 POWER_RY
CL351
5 PT_STOP
CL352
4 STB+5V
R359 R358
330 330
3 STB+5V
1W 1W CL353
2 UCOM_GND
R364 R363 1
UCOM_GND
330 330
1W 1W
CN304
6P
CL419
1 +12V (REG)
2 NC >12S
CL418
3 GND
CL417
STBY
4 STB+5V
BOARD
CNP54
5 NC(STOP)
CL416 (Page
6 POWER RY
113)
C329
J302
2200p
2P
R365
CL367
100
SUBWOOFER
OUT
C320
J301
2200p
6P
R316
1k
CL366 R
ZONE 2
R314
VARIABLE
1k
CL365 AUDIO OUT
L
R313
1k
CL364 R
R312 SAT/CATV
1k AUDIO IN
CL363
L
R311
1k
CL362 R
VIDEO 1
R310
AUDIO IN
1k
CL361
L
J300
6P
R309
1k
CL359
R
VIDEO 1
R308
AUDIO OUT
1k CL358
L
R307
1k
CL357 R
R306 TV
1k IN
CL356
L
R305
1k
CL355 R
R304 SA-CD/CD
1k IN
CL354
L
CN308
5P
CL378
1 HP DETECT
RY306
>13S
CL379
2 NC
-2
3 R-CH
HP
BOARD
4 GND
-1 CN171
5 L-CH (Page
CL380
105)
–
+
D312
DA2J10100L