DOWNLOAD Sony CDX-4240R / CDX-4250R Service Manual ↓ Size: 5.27 MB | Pages: 52 in PDF or view online for FREE

Model
CDX-4240R CDX-4250R
Pages
52
Size
5.27 MB
Type
PDF
Document
Service Manual
Brand
Device
Car Audio
File
cdx-4240r-cdx-4250r.pdf
Date
PREV: Sony CDX-C4840R / CDX-C4850R (serv.man3) Service Manual

Sony CDX-4240R / CDX-4250R Service Manual ▷ View online

– 45 –
– 46 –
4-12. SCHEMATIC DIAGRAM — DISPLAY SECTION —
Note:
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
(Page 44)
CDX-4240R/4250R
– 47 –
– 48 –
CDX-4240R/4250R
4-13. PRINTED WIRING BOARD — DISPLAY SECTION —
(Page 37)
LED502
A-2
LED503
B-1
LED504
C-2
LED505
C-3
(Q502)
B-13
(Q503)
C-4
(Q504)
C-7
(Q505)
B-13
(D501)
B-10
(D502)
B-12
(D503)
B-10
(D506)
B-11
(D507)
C-10
(D508)
C-10
(IC501)
B-8
LED501
B-3
• Semiconductor Location
Ref. No.
Location
Ref. No.
Location
(
) : SIDE B
– 49 –
1
2
3
4
5
6
7
8
9
10
11
12
13
14
OPOUT
CH4-IN
CH4
CTL1
CTL2
FWD
REV
TRAY
GND
CH3 –
CH5 –
COM
CH4 +
CH3 +
CH3-IN
CH3
VREF
CH2
CH2-IN
VCC
VCC
CH1 –
CH2 –
CH1-IN
OP IN –
CH1
CH1 +
OP IN +
CH2 +
DRIVE
BUFFER
DRIVE
BUFFER
DRIVE
BUFFER
DRIVE
BUFFER
DRIVE
BUFFER
DRIVE
BUFFER
DRIVE
BUFFER
DRIVE
BUFFER
DRIVE
BUFFER
LEVEL
SHIFT
LEVEL
SHIFT
LEVEL
SHIFT
LEVEL
SHIFT
THERMAL
SHUT
DOWN
15
16
17
18
19
20
21
22
23
24
25
26
27
28
LOGIC
CTL1
CTL2
FWD
REV
V/I
XLON
SPOD
SPOC
SPOB
SPOA
CLKO
VDD
CNIN
SEIN
CLOK
XLAT
XLTO
DATO
52
53
54
55
56
57
58
59
60
61
62
63
64
51
SERVO AUTO
SEQUENCER
33
34
35
36
37
38
39
40
41
42
43
45
46
47
48
49
50
44
DATA
XRST
SENS
MUTE
SQCK
SQSO
EXCK
SBSO
SCOR
VSS
WFCK
EMPH
DOUT
C4M
FSTT
XTSL
XTAO
XTAI
MNTO
20 21 22 23 24 25 26 27
29 30 31 32
28
LRCK
PCMD
BCLK
GTOP
XUGF
XPCK
VDD
GFS
RFCK
C2PO
XROF
MNT3
MNT1
1
2
3
4
5
6
7
8
9
10
11
12
16
17
18
19
13
14
15
FOK
MON
MDP
MDS
LOCK
TEST
FILO
FILI
PCO
VSS
AVSS
CLTV
AVDD
RF
BIAS
ASYI
ASYO
ASYE
WDCK
5
14
CPU
INTERFACE
SUB CODE
PROCESSOR
DIGITAL
CLV
EFM
DEMODULATOR
DIGITAL
PLL
ASYMMETRY
CORRECTOR
5
D/A
INTERFACE
ERROR
CORRECTOR
3
6
3
16K
RAM
DIGITAL
OUT
CLOCK
GENERATOR
4
IC1  CXD2507AQ
IC3  BA6796FP-T1
• IC Block Diagrams
– 50 –
36
35
34
33
32
31
30
29
28
27 26 25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
37
38
39
40
41
42
43
44
45
46
47
48
PHD 2
PHD 1
PHD
LD
RF O
RF I
CP
CB
CC1
CC2
FOK
SENS
C.OUT
XRST
DATA
XLT
CLK
VCC
ISET
SL O
SL M
SL P
TA O
TA M
FSET
TG2
TGU
SRCH
FE O
FLB
FGD
FDFCT
FE M
FEI
FEO
FE BIAS
F
E
EI
VEE
TED
LPFI
TEI
ATSC
TZC
TDFCT
VC
APC
LEVEL  S
FOK
MIRR
RF IV AMP1
RF IV AMP2
FE AMP
TTL
IIL
FZC COMP
DFCT
IIL
TTL
IIL DATA REGISTER
INPUT SHIFT REGISTER
ADDRESS DECODER
OUTPUT DECODER
TTL
IIL
TOG1-3
BAL1-3
FS1-4
TG1-2
TM1-7
PS1-4
F IV AMP
E IV AMP
BAL1
BAL2
BAL 3
TE AMP
TZC COMP
DFCT
TM1
DFCT
FS4
ATSC
WINDOW COMP
TOG1
TOG2
TOG3
FCS PHASE
COMPENSATION
FS1
F SET
TG2
TM7
TM3
TM4
TM5
TM6
ISET
TRACKING
PHASE
COMPENSATION
HPF COMP
LPF COMP
TG1
FS2
TM2
RF  M
IC2  CXA1782BQ
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