Sony CDX-V7800X Service Manual page 40

Q Q
3 7 6 3 1 5 1 5 0
• IC Block Diagrams.
IC511 CXA2570N-T4
VC
1
LD
VCC
PD 2 APC
EQ IN 3
AC SUM 4
AC
5
GND SUM
DC
SUM
RW/ROM
RW/ROM
RW/ROM
A 6
B 7
C 8
VC
D 9
RW/ROM
T E
L 1 3 9 4 2 2 9 6 5 1 3
RW/ROM
VC
E 10
F 11
SW 12 RW/ROM
(H/L)
RW/ROM
VC
IC 551 NJM2268V (TE2)
8 7 6 5
6.2dB 75Ω
AMP DRIVER
w w w
75Ω
6.2dB
DRIVER
AMP
1 2 3 4
IC512 LA6556
24 RFDCI
FWD
1
23 RFDCO
INPUT
REV 2
VC
22 VC VCC2 3
VL0–
4
21 RFC
EQ 20 VFC
19 BST
VL0+ 5
AC
18 RFG
VCA
VO4+ 6
VCC 17 VCC
VO4–
7
16 TE
15 FEI
VO3+ 8
14 FE
VO3– 9
13 RFAC
VO2+
10
VO2– 11
VO1+ 12
VO1–
13
VCC1 14
VIN1 15
VIN1–A
16
AMP-A
–
VIN1+A 17 +
VIN1–B 18
–
+
AMP-B
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GND
36 S-GND
CH2-CH4 OUTPUT
35 MUTE2
MUTE2
ON/OFF
CH1 OUTPUT
34 MUTE1
MUTE1
ON/OFF
33 VIN4
OUTPUT
CONTROL
32 VIN4–
+
–
31 VIN4+
LEVEL
SHIFT
30 VREF-IN
29 VIN1 (VREF)-SW
VIN1/VREF SW
LEVEL
SHIFT
28 VREF-OUT (CH1)
–
+
Q Q
5V REG
3 7 6
+
–
27 REG-OUT
LEVEL
SHIFT
26 REG-IN
25 VIN3+
+
LEVEL
SHIFT –
24 VIN3–
23 VIN3
22 VIN2+
–
+ +
–
21 VIN2–
20 VIN2
19 VIN1 +B
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y
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2 4
8 9 9
IC518 STV0119B
SYNC CONTROL
&
HSYNC 1
VIDEO TIMING
GENERATOR
AUTO TEST
COLOR BAR
PATTERN
YCRCB7 2 CB-CR RGB
ENCODING
YCRCB6 3
YCRCB5 4
5
YCRCB4
LUMA
6
YCRCB3
Y
PROCESSING
7
YCRCB2
YCRCB1 8
YCRCB0 9
MACROVISION CLOSED
10
VSS 7.0.1/6.1 CAPTIONS
CGMS
VDDA
CHROMA
PROCESSOR
11
CVBS
VR CVBS 12
3 IREF(CVSS) 1 13 5 1 5 0 8 9
VSSA
14 VSSA
IC401 LC75374E
33 32 31 30 29 28
+
+
–
–
–
+
LSELO 34
L4 35
L3 36
L2
37 +
L1 38 –
VDD 39
–
R1 40
+
R2 41
R3 42
DECODER LATCH
R4 43
m
RSELO 44
+
–
c o
–
–
+
+
.
1 2 3 4 5 6 7 8 9 10
2
8 9 9
VSYNC/
28
ODDEVEN
27 SDA
CTRL+CFG
CSI2C
REGISTER
26
SCL
25
RESET
24 CKREF
23 TTXD
TELETEX
TTXS
TTXS/
22
CSI2C
CSI2C
21
VDD
VDDA
20 G/Y
19 R/C
18 B/CVBS
TRAP
17 VR RGB
16 IREF(RGB)
VSSA
2 4 9 8 2 9 9
15 VDDA
27 26 25 24 23
22 LFIN
+
21 LFOUT
–
–
+
+
LROUT
20
–
19 VREF
CONTROL 18 CE
17 DI
16 CL
15
VSS
SHIFT
–
REGISTER 14 RROUT
+
+
–
–
13 RFOUT
+
12 RFIN
11