Sony CDX-C4750 Service Manual page 30

• IC Block Diagrams
IC1 CXD2507AQ
64 63 62 61 60 59 58 57 56 55 54 53 52
SERVO AUTO
FOK 1
SEQUENCER 5
MON 2
CPU SUB CODE
MDP 3
INTERFACE PROCESSOR
14
4
MDS
DIGITAL
LOCK 5
CLV
4
TEST 6
FILO 7
DIGITAL EFM
8
FILI
DEMODULATOR
PLL
9
PCO
10
VSS
AVSS 11
3
CLTV 12
ASYMMETRY
AVDD 13
CORRECTOR
D/A
5
INTERFACE
RF 14
BIAS 15
ASYI 16 ERROR 6
16K
CORRECTOR
RAM
ASYO
17
ASYE 18
3
WDCK 19
20 21 22 23 24 25 26 27 28 29 30 31 32
IC3 BA6796FP-T1
26
28 27 25 24 23 22
LEVEL
SHIFT
LEVEL
SHIFT
THERMAL
SHUT
DOWN
LOGIC
CTL1 CTL2 FWD REV
1 2 3 4 5 6 7 8
51 DATA
50 XRST
49 SENS
48
MUTE
47
SQCK
46 SQSO
45 EXCK
44 SBSO
43
SCOR
42 VSS
41 WFCK
40 EMPH
DIGITAL
39 DOUT
OUT
38 C4M
37 FSTT
36
XTSL
35
XTAO
34 XTAI
33 MNTO
21 20 19 18 17 16
DRIVE
VCC DRIVE DRIVE DRIVE
BUFFER
BUFFER BUFFER BUFFER
LEVEL
SHIFT
LEVEL
SHIFT
DRIVE DRIVE DRIVE DRIVE DRIVE
V/I
BUFFER BUFFER BUFFER BUFFER BUFFER
9 11 12 13
10
– 41 –
IC2 CXA1782BQ
36 35 34
APC
RF IV AMP1
RF IV AMP2
FE BIAS 37
F 38
F IV AMP
E 39
E IV AMP
EI 40
TE AMP
15
VEE 41
TED 42
LPFI 43
TEI
44
ATSC 45 WINDOW COMP
TZC 46
ATSC
TDFCT 47
VC
48
14
32 30 29
33 31
LEVEL S
MIRR
TTL
IIL DATA REGISTER INPUT SHIFT REGISTER
ADDRESS DECODER
IIL
OUTPUT DECODER
TOG1-3 FS1-4 TG1-2
BAL1-3
FZC COMP
HPF COMP LPF COMP
TG1
FCS PHASE
TZC COMP
COMPENSATION
DFCT
FS1
TM1
FS2
DFCT
FS4
1 2 3 4 5 6 7
– 42 –
28 27 26 25
IIL
24 SENS
DFCT
TTL 23 C.OUT
TTL
22 XRST
21 DATA
20 XLT
IIL
19 CLK
TM1-7 PS1-4
18 VCC
TRACKING
PHASE
ISET 17 ISET
COMPENSATION
TM6
16 SL O
TM5
15 SL M
TM4
SL P
TM3 14
TM2
TM7
13 TA O
8 9 10 11 12