Block Diagram - Main Section - Sony MCE-K550 Service Manual

6-3. BLOCK DIAGRAM — MAIN SECTION —
K550 MODEL MECHA CONTROL
MICON
XRST
CN101 IC504
K750 MODEL
XRST
24 DSP XRST
SCLK
2 SCLK
SUBQ D0 88
36 SUBQ 8
SENS D7 81
SENS
1
XLT
4 XLT
LDON
LDON
6
SQCK
SQCK
37
A0
MUTE 72
MUTE
10 4
DATA 69
DATA A3
BD 3
A CLK
CLK
BOARD 5
SCOR
SCOR
18 VCDINT 20
CTRL1
11 CONT1
CTRL2
19 CONT2
ADATA
XRW 46
BCLK
RD 44
+5V
LRCK
3
REMOTE
C2PO (EVER)
7 SIRCS
CONTROL 1 VCDCS 47
384BD
IC700
2
X OUT 13
MOTOR DRIVE
X IN
15
IC501
LOAD IN 73
2 OUT1 R IN 5 28 TEST LED
LOADING
M
MOTOR
10 OUT2 F IN 6 27 LOAD OUT
7 8 PWON LED 78
+7V
K550 MODEL
29 IN SW
S152
MODE1 53
LOAD IN
S153 30 OUT SW MODE2 54
LOAD OUT
K750 MODEL
PAL
S300
OSD CS 34
93 N/P SW SO1 31
AUTO
CLK1 33
NTSC XRST 77
S720 ON 52 KARAOKE
K750
KARAOKE
MODEL
OFF
25
JOG 1
26 JOG 2
S700-705
ENCODER 90 KEY 0
S707-712
91 KEY 1 DNR CS 100
DVE CS 21
DF CS 22
S713-719
92 KEY 2
KDSP CS 49
RV301 RV302 KDSP RDY 50
MUSIC VOCAL
VOL VOL ECHO VOL 97
+5V
MIC CONT 89
(EVER)
VOCAL VOL
95
12dB AMUTE 48
S301
MUSIC VOL
94 XRESET 12
AUDIO
ATT 9dB PWON 38
FL CS 79
OFF XBLK 80
ADATA 1
3
2
IC505(2/4) +5V(D)
10
+5V(D) 8 IC505(1/4)
BCLK 9
IC505(3/4)
LRCK 5
6
4
+5V(D)
16
SO1 64 DI XBLK 61
FL DRIVE
IC701
CLK1 63 CL CE 62
S35-40 S1-S24 C1-C6
22 - 17 56 - 42 . 40 - 33 2 - 7
C1
6
LED
C1 GRID
DRIVE
DRIVE
Q701-706 Q401
(VFDP)
VF1
D701-706
FL700
FLUORESCENT
INDICATOR TUBE
— 13 —
MPEG DECODER
IC503
Y/C PROCESSOR
IC506
63 27 C/RI0
7 R/Cr0
8
HD0
8 R/Cr7 70 20 CRI7
13
HD7
.
16
71
18
G/Y0 73 Y/GI0
119
. .
8
A0
120 G/Y7 76
. 11 Y/GI7
4
5 A3
.
80
6
117 XHIRQ
DRAM
116 XWR 100 DCLK V SYNC
IC502
IC507
1
3 4
2 6 16
5 114 XHCS 18
.
24
.
12 20 31 30 93 29
MA0 . 19 A0
11 21
. .
13 23 9
.
19
MA8 . 22 A8
22
.
17
XRST 118 XRST 33
X502 26
97 XSGRST
10MHz
54 39
. .
52
D502 41 2 31
. .
+5V 50 43
. .
MD0
(EVER) 5 34 DQ1
48 47
. . . .
16
D700 MD15 46 49 7 36
. . DQ16
STANDBY 42 51
. .
3 XTL0I
LED 10 39
+5V X501 40 53
. .
DRIVE
(EVER) 28.63MHz
38 55
Q700 XTL0O
2
+5V(D) XMWE 35 13 W
107 XTL2I XRAS 34 14 RAS
X503
28 UCAS
45MHz
OSD
106 XTL2O XCAS0 37 29 LCAS
IC509
VR 16 59 OSD R
2 CS VG 17 58 OSD G
3 DATA VB 18 57 OSD B
1 CLK FID/FHREF 94
4 PCL V CBL 11 56 XOSDEN
H SYNC 20 92 H SYNC DCLK 89
95 CBLNK/FSC
V SYNC 19 93 V SYNC
+5V(D)
OSC 8
13
11
12
DATA 100
SO1 IC505(4/4)
CLK1
XRST
111 DATI
DNR CS 112 BCKI
384FS
DVE CS 110 LRCI FSXI 103 9 Q CK 11
DIVIDER
DF CS 109 C2PO
IC513(1/2)
KDSP CS 8 Q D 12
KDSP RDY
IC202
CLOCK CONT
1 2
5 Q CK 3
DIVIDER
IC513(2/2)
Q D X202
6 2
27MHz
-30V
VF2
10BIT D/A CONV
IC511
C/RO0 51 18 C0
8
11 C7 C BUFFER
CRO7 58 32
C OUT
Q331-333
9
60 6 Y0
Y/GO0
Y BUFFER
8 .
Y OUT 29
Q341-343
Y/GO7 4
67 Y7
1
H SYNC 98 60 H SYNC
97 59 V SYNC
62 FID
CV BUFFER
56 SYS CLK COMP O 24
Q371-374
57 PD CLK
48 49 55 51 50
DIGITAL FILTER
D/A CONV
IC508
LPF LPF LINE AMP
IC101(1/2) IC102(1/2) IC103(1/2)
6 DI
L ON 12 7 7
5
LO 10 5
6
MUTE
3 MLEN
Q100
5 BCLK
8 LRCK 3 IC103(2/2)
R ON 14 1 1
2
RO 16
3
18 XTI
X504 MUTE
33MHz Q200
XTO
19
23 24 22 1
MIX AMP
IC401(2/2) IC401(2/2)
MUTE SW
Q310 K550 MODEL
DIGITAL FILTER
D/A CONV
IC510
92 SI AO1N 39
AO1P 40
93 BCK AO2N 33
94 LRCK AO2P
34
14 BFOI AIN3 20
LO3 K750 MODEL
21
3 4
8 98 4 1 99
REG
+7V
3 IC304 1
2
+10V
RIPPLE FILTER
+UNREG
Q311
RIPPLE FILTER
-UNREG
Q312
-10V
UNSWITCHED +5V
IC302
+5V
5 OUT
(UNSW)
IN
4 RESET
+5V REG
IC301
+5V(A)
+5V(D) 3 +V OUT +Vcc
Q309
–5V REG
IC305
–5V 3 –V OUT IN
— 14 —
K750 MODEL
J102
C
S VIDEO
OUT
Y
J103
VIDEO
OUT
K550 MODEL
J104
CV
VIDEO OUT
L
L L
AUDIO
R OUT
R
K750 MODEL
L
L L
AUDIO OUT 1
R
R
L
L L
AUDIO OUT 2
R
HP AMP
RV300
IC105(1/2)
5 7
J300
PHONES
-1
MUTE
Q101
IC105(2/2)
3 1
-2
MUTE
Q201
RV400
MIC AMP
MIC1 VOL
IC400(1/2)
7 5
MIC 1
IN
RV401
MIC AMP
MIC2 VOL IC400(2/2)
1 3
MIC 2
IN
K750 MODEL
ECHO UNIT
IC402
MIC
CONTROL
9 OUT IN 11
D905
D904
ICP900
T901
S901
POWER
F901
RECT
D906
AC
ICP901
IN
S900
115V
-30V REG CONT
(VFDP) Q900,901 230V
D901
D903
CHINESE, SINGAPORE,
VF1
MODEL MALAYSIA,TAIWAN
MODEL
1 VF2
Signal path
Q305
: CD
POWER
1
SW
: CHROMA
: Y
: VIDEO
POWER
2
SW
Q313
Q314
MCE-K550/K750
— 15 —