Sony CDX-2250 / CDX-3500 Service Manual ▷ View online
– 37 –
• IC Block Diagrams
IC3 BA6796FP-T1
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
IC401 LC75374E
+
–
–
+
–
–
+
–
–
+
–
+
–
+
–
–
+
–
–
+
–
+
–
+
–
+
–
–
+
–
–
+
–
+
–
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
L3
L2
L1
VDD
R1
R2
R3
R4
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
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
TA
B
PW
-GND
OUT2–
ST
-BY
OUT2+
Vcc1
OUT1–
PW
-GND1
OUT1+
SVR
IN1
IN2
S-GND
IN4
IN3
AC-GND
OUT3+
PW
-GND3
OUT3–
Vcc2
OUT4+
MUTE
OUT4–
PW
-GND4
DIAGNOSTICS OUT
IC402 TDA7385
– 38 –
IC2 CXA1782BQ
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
PHASE
COMPENSATION
HPF COMP
LPF COMP
TG1
FS2
TM2
RF M
– 39 –
SECTION 5
EXPLODED VIEWS
5-1. CHASSIS SECTION
NOTE:
• -XX, -X mean standardized parts, so they may have
some difference from the original one.
• Items marked “*” are not stocked since they are
seldom required for routine service. Some delay
should be anticipated when ordering these items.
should be anticipated when ordering these items.
• Color Indication of Appearance Parts Example:
KNOB, BALANCE (WHITE) . . . . (RED)
Â
Â
Parts color Cabinets color
• The mechanical parts with no reference number in
the exploded views are not supplied.
• Hardware (# mark) list and accessories and pack-
ing materials are given in the last of this parts list.
The components identified by
mark
mark
! or dotted line with mark
! are critical for safety.
Replace only with part number
specified.
Replace only with part number
specified.
Les composants identifiés par une
marque
marque
! sont critiques pour la
sécurité.
Ne les remplacer que par une
piéce portant le numéro spécifié.
Ne les remplacer que par une
piéce portant le numéro spécifié.
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
* 7
3-030-849-01 HEAT SINK (T)
* 8
3-019-565-01 BRACKET (IC)
* 9
3-030-850-01 HEAT SINK (REG)
* 10
3-024-285-01 CUSHION (RUBBER)
F901
1-532-877-11 FUSE (BLADE TYPE) (AUTO FUSE) 10A
TU01
A-3301-697-A TUNER ASSY
* 1
3-030-925-01 COVER
* 2
3-030-876-01 CHASSIS
3
1-769-786-81 CORD (WITH CONNECTOR) (POWER)
* 4
3-030-927-01 BRACKET (MD)
5
3-922-535-11 SCREW (+BTT)
* 6
A-3294-553-A MAIN BOARD, COMPLETE (CDX-2250)
* 6
A-3294-635-A MAIN BOARD, COMPLETE (CDX-3500)
1
3
2
9
7
6
5
5
4
#1
#1
#1
#2
#2
#2
#2
#1
#3
#2
F901
MG-363X-121
8
TU01
A
A
B
B
10
11
– 40 –
5-2. FRONT PANEL SECTION
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
59
3-019-548-01 RING
60
3-019-543-01 KNOB (D-BASS)
* 61
X-3376-745-1 HOLDER ASSY, LCD
* 62
3-019-557-01 PLATE (LCD), GROUND
* 63
3-019-561-01 SHEET, LCD COLOR
64
3-019-558-01 SHEET (D) (LCD)
* 65
A-3294-555-A DISPLAY BOARD, COMPLETE (CDX-2250)
66
1-783-268-11 CABLE, FLAT
LCD551 1-803-439-21 DISPLAY PANEL, LIQUID CRYSTAL
51
X-3376-779-1 PANEL (S) ASSY, FRONT (CDX-2250)
51
X-3377-101-1 PANEL (S) ASSY, FRONT (CDX-3500)
52
3-019-544-03 KNOB (SEEK/AMS)(CDX-2250)
52
3-019-544-23 KNOB (SEEK/AMS)(CDX-3500)
53
3-019-542-01 BUTTON (RESET)
54
3-019-550-01 BUTTON (MODE/SOUND)
55
3-019-552-01 BUTTON (1-6)
56
3-030-873-11 BUTTON (CD EJECT)
57
3-025-315-02 BUTTON (SOURCE)
58
3-019-547-01 KNOB (VOL)
57
58
59
62
63
64
60
66
65
61
54
52
56
#4
#4
#4
LCD551
C
C
53
55
51
Click on the first or last page to see other CDX-2250 / CDX-3500 service manuals if exist.