Block Diagram - Audio Section - Sony HCD-DH50R Service Manual

HCD-DH50R/DH70SWR
Ver. 1.1
5-3.

BLOCK DIAGRAM - AUDIO Section -

(DH50R: RU, SP, TW, KR, TH/DH70SWR: RU)
DIGITAL ECHO
IC251
MCO 21
J251
MIC AMP
15 MC1P POOUT 29
MIC
SDA 7
SCL 6
CS1 5
Q263
LOUT
(Page 26) A
J252
R-CH
AUDIO IN
J651 (1/2)
L
VIDEO
AUDIO IN
R R-CH
ANTENNA
TUNER (FM/AM)
FM75
FM ANT L-OUT
COAXIAL
R-OUT R-CH
DI
AM AM ANT DI
CLK
CLK
CE
CE
TUNED
TUNED
DO/STEREO
DO/STEREO
RDS DATA
RDS DATA
RDS CLK
RDS CLK
(DH50R: AEP/DH70SWR: AEP)
(DH50R: AEP/DH70SWR: AEP)
87 88 85 82 18
HCD-DH50R/DH70SWR
MIC SCORE
IC252
MIC EHCO DATA
MIC ECHO CLK
MIC_ECHO CS
MIC DETECT
L_IN
INPUT SELECTOR,
R-CH
ELECTRICAL VOLUME
IC500
MIX AMP
3 DVD/USB_L 11 VOL_L OUT_L 23
IC501
SEL_L 10
1 AIN_L SB_L 22
7 TV_L SR 21
5 TUNER_L
26 25
BASS CUT
MUTING
FILTER
Q573
Q541
R-CH R-CH
MUTING
Q543
CONTROL
Q571, Q572
6 5 4 3 23 64 17 16 24 21
SYSTEM CONTROLLER
IC401 (2/3)
C
(Page 26)
B
(Page 26)
HEADPHONE
R-CH
AMP
IC253
R-CH
MUTING MUTING
Q259 Q251
R-CH
MUTING
CONTROL
Q255, Q256
HEADPHONE_MUTE
HEADPHONE_DETECT
A/D CONVERTER STREAM PROCESSOR
IC701 IC705
13 IN-L D-OUT 9 31 DATA OUTL1 11
R-CH 14 IN-R BCK 8 30 BCK
OUTL2 9
LRCK 7 29 LRCK
6 SCK-I
36 XFSIIN
CLOCK SHIFT
IC703
X703 CLOCK BUFFER
48 XFSOIN
IC709
49.152MHz
OUTR1 6
OUTR2 4
22 62
O-SM_DATA 38 21 SCDT
O-SM_SHIFT 39 22 SCSHIFT
O-SM_LATCH 41 23 SCLATCH
O-SM_PG_MUTE 34 20 PGMUTE
O-SM_SOFT_MUTE 35 19 SOFTMUTE
O-SM_NSP_MUTE 48 18 NSPMUTE
O-SM_INIT 49 27 INIT
O-SM RST 36
I-SM SD 37
O-SUBWOOFER_MUTE 43
O-SUBWOOFER_ON 76
(DH70SWR)
28 28
R-ch is omitted due to same as L-ch.
SIGNAL PATH
: AUDIO
: TUNER
: AUDIO IN
: MIC
Abbreviation
KR : Korean model
RU : Russian model
SP : Singapore model
TH : Thai model
TW : Taiwan model
J253
PHONES
DIGITAL POWER AMP
IC707
OUT_B 29
2 BP OUT_B 30 L.P.F.
17 AP OUT_A 25 L.P.F.
OUT_A 26
OVER LOAD
DETECT
Q702, Q703
4 13
DIGITAL POWER AMP
IC708
OUT_B 29
2 BP OUT_B 30 L.P.F.
17 AP OUT_A 25 L.P.F.
OUT_A 26
OVER LOAD
DETECT
Q752, Q753
4 13
PROTECT
DETECT
Q701
(DH70SWR)
TB666
L
SPEAKER
R
LOW-PASS
J666
FILTER
SUBWOOFER
IC666
SUBWOOFER
POWER ON/OFF
SWITCH
MUTING
Q540, Q580
Q666, Q667
FAN +11V
MUTING
CONTROL
Q668, Q669