Sony CDX-F7500 / CDX-F7700 Service Manual ▷ View online
21
21
CDX-F7500/F7700
1 ANT
40 TUNER LCH
ELECTRONIC VOLUME
IC401
J601
(ANTENNA)
TUX501
(TUNER UNIT)
CONTROLLED POWER AMP/
MULTIPLE VOLTAGE REGULATOR
IC201
SYSTEM CONTROL
IC303 (2/3)
CNP101
41 TUNER RCH
BATT
42 CD LCH
43 CD RCH
R-CH
4
3
3
10
VCC
11
TU VDD
15
E2P VDD
13
TU-SCL
14
TU-SDA
6
S-METER
7
TU MUTE
16
E2P SCL
17
E2P SDA
82 VSM
8
MUTE CONDITION
9
RDS
5
QUALITY
73 TU ATTIN
80 QUALITY
19 NS MASK
17 DAVN
AU+8V
TU+5V
BU+5V
BU+5V
32 TUNER ATT
34 EECKO
33 EESIO
33 EESIO
L
R
CD-L
R-CH
17
22
OUTSW
OUT RF
21
OUT RR
R-CH
L
R
5
3
3
FL+
FL-
9
7
7
RL+
RL-
29
27
27
SW1
R-CH
SW2
BATT
30
37
37
REG1
REG2
31
33
33
REG3
REG4
34
REG5
TU+5V
BATT
14
16
16
SA IN
SA OUT
15
MUTE
2 SDA
AU+8V
BU+5V
CD+3.3V
CD+6V
CD+6V
ILL+B
4 SCL
SDA
SCL
16 ACGND
22 STB
25 DIAG
25 DIAG
AU+8V
35 VP
15
13
7
10
12
11
16
1
9
2
4
3
5
6
13
12
12
SCL
SDA
SCL
SDA
SCL
SDA
SCL
SDA
27
IIC CKO
28
IIC SIO
26
VOL ATT
25
ATT
20
BEEP
41
AMP STB
40
AMP DIAG
83
SA IN
23
SA CLK
66
BUS/AUX
18
BU IN
63
TEST IN
12 INFL
2
1
AMP
IC470
F7500
F7700
FL+
FL-
RL+
RL-
FR+
FR-
RR+
RR-
AMP-REM
ANT-REM
ACC
TEST
25
OUT LF
11 INRL
24
OUT LR
MUTE
Q451
MUTE
Q171
REAR
AUDIO OUT
MUTE CONTROL
Q401,402
30
UNI SI
29
UNI SO
31
UNI CKO
64
BUS ON
65
SYS RST
10 B CHK
8 DATA OUT
9 DATA IN
11 CLK IN
12 BUSON
13 RST
RESET
3
5
4
7
6
2
1
3
BATT
6
DATA I/O
4
CLK
1
BUS ON
2
RST
68
ACC IN
ACC CHECK
Q102
TU+5V REG
Q501
BU+3.3V
BATT
BU+5V
BATT
+3.3V REG
IC271
BATT DET
Q101
BUS INTERFACE
IC110
MUTE
Q450
ATT
24
TEL ATT
TEL ATT
Q103
14
69
ILL IN
ILL
D401
F901
R-CH
L
R
FRONT
AUDIO OUT
R-CH
4
7
7
PB LCH
PB RCH
R-CH
L
R
BUS
AUDIO IN
PJ401
CN401
SUB OUT(MONO)
BUS
CONTROL
IN
D904
D302
D301
D105
CD
SECTION
A
DISPLAY
SECTION
C
SYS RST
LINK OFF
BUS ON
UNI SCK
UNI SO
UNI SI
ATT
BU CHK
CD
SECTION
B
TH100
CNP102
8
BATT
LINK ON/OFF
SWITCH
Q111
BU CHECK
DET
Q270,273
BUS ON SWITCH
Q110,112
ILL CHECK
Q907
8
14
AMP
IC402
AMP
IC431
3
5
11
13
1
7
MUTE
Q181
GROUND SW
Q408
MUTE
Q470
F7500
F7700
F7700
• Signal Path
• R-CH is omitted due to same as L-CH.
: CD PLAY
: FM
: MW/LW
16 MPX
RDS DEMODULATOR
IC550
Q380
4 OSCO
5 OSCI
9
SCL
10
SDA
SCL
SDA
8
DAVN
X550
4.332MHz
3-3. BLOCK DIAGRAM — MAIN SECTION —
(Page 20)
(Page 20)
(Page 22)
22
22
CDX-F7500/F7700
3-4. BLOCK DIAGRAM — DISPLAY SECTION —
FL VDD+5V
T620
DC-DC
CONVERTER
IC620
D623,624
D620,621
D622
FL+4.3V
FL+1V
FL+55V
ILL+B
BATT
X301
32.768kHz
8
9
11
13
85
98
99
100
84
87
70
86
10
DISPLAY CONTROL
IC901
GCP
BUFFER
IC902
FL900
FLUORESCENT
INDICATOR
TUBE
KEYIN0
CLK
DISP SI
DISP SO
FL DAT1
FL DAT2
FL DAT3
FL DAT3
LAT
BK
GCP
GCP1
GCP2
GCP3
GCP3
GCP4
FL CLK
DISP CKO
KEYIN1
88 KEY ACKO
89 KEY ACK1
ILL+B
BATT
KEY ACK2
RCIN1
RCIN0
RESET
NOSE SW
2 IN
1
OUT
XCIN
XCOUT
XOUT
XIN
X302
6MHz
S301
RESET
29
30
31
25
SO
SI
95
DISP CE
1 CE
7
CNVSS
7 CNVSS
4
61
DISP RESET
10 RESET
1
RESET
IC904
ILL+B
1
SIRCS
92
FLD ON
93
FL ON
22
FSW OUT
21
FSW IN
90
DOOR IND
1
VCC
IR
LED901,910-924
LSW901-908
LSW901-908
LED931,932
REMOTE CONTROL
RECEIVER
IC903
2 OUT
BU+5V
RESET
KEY MATRIX
S901-910,912
LSW901-908
ENC901(2/2)
35
36
SYSTEM CONTROL
IC303 (3/3)
REIN0
REIN1
ROTARY
ENCODER
ENC901(1/2)
37
S300
(NOSE DET)
RESET
IC302
CNJ101
(REMOTE IN)
POWER
CONTROL
Q601,602
33
6
99
5
3
4
21
12
22
13
35
7
11
23
5
28
1
27
2
11
MAIN
SECTION
C
+5V REG
D911
POWER
CONTROL
Q914,916
POWER
CONTROL
Q623,Q624
ON/OFF
DRIVE
Q620
DC-DC
CONVERTER
CONTROL
Q621,622
+5V REG
Q915
7
4
1
5
VCC
OUT
IN
CT
(Page 21)
23
23
CDX-F7500/F7700
3-6. WAVEFORMS
3-7. CIRCUIT BOARDS LOCATION
MAIN board
KEY board
SENSOR board
SERVO board
tuner unit
(TUX501)
(TUX501)
SUB board
3-5. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
For schematic diagrams.
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in Ω and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
• C : panel designation.
For printed wiring boards.
Note:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
•
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
•
a
: Through hole.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• A : B+ Line.
• B : B– Line.
• H : adjustment for repair.
• Voltages and waveforms are dc with respect to ground
• B : B– Line.
• H : adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
• CD mechanism section
no mark : CD PLAY
• Main (1/3), (2/3), (3/3) and Key sections
no mark : FM
no mark : CD PLAY
• Main (1/3), (2/3), (3/3) and Key sections
no mark : FM
(
) : AM
<
> : CD PLAY
∗
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
J
: CD PLAY
F
: FM
f
: MW/LW
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B)
Pattern face side: Parts on the pattern face side seen from the
(Side B)
pattern face are indicated.
Parts face side: Parts on the parts face side seen from the
(Side A)
(Side A)
parts face are indicated.
Q
C
These are omitted
E
B
E
These are omitted
C
B
C
These are omitted
B
E
Note: The components identified by mark 0 or dotted line
with mark 0 are critical for safety.
Replace only with part number specified.
Replace only with part number specified.
— Servo Board —
(MODE: CD PLAY)
1
2
Approx. 100mVp-p
IC3
wa
(TEI)
0V
IC3
wh
(A),
wk
(C)
3
4
5
6
16.9344MHz
IC3
uj
(XTAO)
7
0V
Approx. 100mVp-p
IC3
wd
(FEI)
Approx.
150mVp-p
150mVp-p
IC3
wj
(B),
wl
(D)
IC3
ra
(RFACO)
Approx.
150mVp-p
150mVp-p
Approx.
0.8Vp-p
0.8Vp-p
2Vp-p
18.43MHz
IC4
ia
(X1)
1Vp-p
6MHz
IC303
qa
(XOUT)
— Main Board —
1
2
32.768kHz
IC303
9
(XCOUT)
5Vp-p
2.9Vp-p
4.332MHz
IC550
4
(OSCO)
3
5Vp-p
24
24
CDX-F7500/F7700
TP39
R49
R48
R97
R50
R78
TP56
BP3
BP2
R52
R46
R98
R44
R
43
R42
R40
R76
R68
R
45
TP133
C65
C52
C60
C53
TP135
R79
R67
R65
R61
R59
R29
R25
R24
TP344
TP343
R53
TP43
R72
TP181
TP180
TP175
TP38
TP48
TP148
TP145
TP132
TP141
TP137
TP41
TP51
TP46
TP139
TP129
TP37
TP127
TP54
TP123
TP40
TP49
C10
TP120
TP72
TP136
TP116
TP36
TP47
TP42
TP55
TP109
TP128
TP106
TP53
TP59
TP60
TP61
TP98
TP97
TP96
TP94
C48
C5
R12
R7
C6
C30
C22
C23
C24
C25
C28
C33
C45
C37
C34
C38
C39
C40
C42
C43
C44
C46
R54
C64
C50
C57
C59
C58
C54
R124
R114
C35
R38
C29
R22
R23
TP71
TP140
C27
TP50
TP44
TP45
R13
R6
TP35
TP34
TP33
TP32
TP30
TP29
TP28
TP27
TP26
TP25
TP24
TP23
TP22
TP21
R1
C4
TP99
R41
C47
R55
R96
C49
TP167
C55
R70
R71
R60
R56
C41
FB2
FB5
R133
CN2
Q1
CN1
X1
R77
R64
TP57
IC3
TP65
TP62
TP63
3-8. SCHEMATIC DIAGRAM — CD MECHANISM SECTION (1/2) — • Refer to page 23 for Waveforms.
(Page 25)
(Page 29)
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