Sony CDX-V7800X, Руководство по обслуживанию

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40 40
• IC Block Diagrams.
3
EQ IN
4 AC SUM
5 GND
24 RFDCI
23 RFDCO
20 VFC
22 VC
19 BST
18 RFG
17 VCC
16 TE
15 FEI
14 FE
13 RFAC
21 RFC
6 A
7
B
8 C
9
D
12 SW
10
E
11 F
AC
SUM
APC
DC
SUM
EQ
AC
VCA
2
1
PD
LD
VC
VC
VC
VC
VC
VCC
VCC
RW/ROM
RW/ROM
RW/ROM
RW/ROM
RW/ROM
RW/ROM
RW/ROM
(H/L)
1 2 3 4
CLAMP
75
Ω
DRIVER
6.2dB
AMP
8 7 6 5
BIAS
75
Ω
DRIVER
6.2dB
AMP
VIN1
GND
VSAG1 VOUT1
VOUT2 NC VCC VIN2
1 36
FWD
2
REV
3
VCC2
4 VL0–
5
VL0+
6
VO4+
7
VO4–
8 VO3+
9
VO3–
S-GND
35 MUTE2
34 MUTE1
33 VIN4
31 VIN4+
30 VREF-IN
29 VIN1 (VREF)-SW
28 VREF-OUT (CH1)
10
VO2+
27 REG-OUT
11
VO2–
26 REG-IN
12 VO1+
13
VO1–
14
VCC1
15
VIN1
16 VIN1–A
17
VIN1+A
18
VIN1–B
25 VIN3+
24 VIN3–
23 VIN3
32 VIN4–
INPUT
OUTPUT
CONTROL
LEVEL
SHIFT
LEVEL
SHIFT
LEVEL
SHIFT
LEVEL
SHIFT
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
AMP-A
AMP-B
VIN1/VREF SW
MUTE1
MUTE2
CH2-CH4 OUTPUT
ON/OFF
CH1 OUTPUT
ON/OFF
GND
5V REG
+
–
+
–
22 VIN2+
21 VIN2–
20 VIN2
19 VIN1 +B
+
–
+
–
1
2
3
4
5
6
7
8
9
10
11
12
13
14
21
22
23
28
CTRL+CFG
REGISTER
SYNC CONTROL
&
VIDEO TIMING
GENERATOR
TELETEX
SWITCH AND
GAIN ADJUSTMENT
9-BIT TRIDAC
DEMULTIPLEXER
9-BIT DAC
AUTO TEST
COLOR BAR
PATTERN
RGB
ENCODING
MACROVISION
7.0.1/6.1
CLOSED
CAPTIONS
CGMS
TRAP
CHROMA
PROCESSOR
20
19
18
17
16
15
26
27
25
24
LUMA
PROCESSING
CSI2C
TTXS
CSI2C
VDDA
VDDA
VSSA
R/C
G/Y
VDD
TTXS/
CSI2C
TTXD
CKREF
RESET
SCL
SDA
VSYNC/
ODDEVEN
B/CVBS
VR RGB
IREF(RGB)
VDDA
YCRCB7
YCRCB6
YCRCB5
YCRCB4
YCRCB3
YCRCB2
YCRCB1
YCRCB0
VSS
CB-CR
Y
HSYNC
CVBS
VR CVBS
IREF(CVSS)
VSSA VSSA
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
– +
–
+
–
+
–
DECODER LATCH
SHIFT
REGISTER
CONTROL
–
+
+
–
1
2 3 4 5 6 7 8 9 10
20
19
18
17
16
15
14
13
12
11
21
22
23 24 25 26 27 28 29 30 31 32 33
34
35
36
37
38
39
40
41
42
43
44
LSELO
L4
L3
L2
L1
VDD
R1
R2
R3
R4
RSELO
RVRIN
RCOM
RT1 RT2 RT3
RTOUT
RSIN
NC NC
RSB1 RSB2
RFIN
RFOUT
RROUT
VSS
CL
DI
CE
VREF
LROUT
LFOUT
LFIN
LSB2
LSB1 NC NC LSIN LTOUT LT3 LT2 LT1 LCOM LVRIN
IC511 CXA2570N-T4
IC 551 NJM2268V (TE2)
IC518 STV0119B
IC401 LC75374E
IC512 LA6556
w w w . x i a o y u 1 6 3 . c o m
Q Q 3 7 6 3 1 5 1 5 0
9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
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