Sony CDX-4000X / CDX-4005 / CDX-4800X Service Manual ▷ View online
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KEY MATRIX
LSW901-908
LSW910-915
LSW901-908
LSW910-915
S901-904
KEY
ACTIVE
Q914
KEY
ACTIVE
Q915
AMBER
DRIVE
Q901
GREEN
DRIVE
Q902
IR
RECEIVE
KEY ACT
CNP802
(REMOTE IN)
ROTARY
ENCODER
RE901
IC951
S901
(NOSE DET)
X801
32.768kHz
80
79
27
16
15
12
13
5
21
22
23
47
26
81
18
7
29
SYSTEM CONTROL
IC801 (3/3)
LCD DRIVE
IC901
KEY IN0
DATA
CE
CL
LCD DATA
LCD CE
LCD CLK
POWER
CONT
Q911
+10V REG
Q912
KEY IN1
KEY ACK
AD ON
RC IN1
RC IN0
SIRCS
RE IN0
RE IN1
NOSE
ILL +B
XO
XI
OSC OUT
24
ILL ON
F/P +10V
BATT
OSC IN
X800
14.432MHz
LED910-915
LED901-904 (4005)
LSW901-908
LSW910-915
LSW910-915
LED921-924
64
4
I
51
•
52
I
55
S04
I
S51
COM1
I
COM4
62
63
2
1
GREEN
AMBER
LIQUID CRYSTAL
DISPLAY PANEL
LCD901
04
4005
3-4. BLOCK DIAGRAM — DISPLAY SECTION —
3-5. CIRCUIT BOARDS LOCATION
CDX-4000X/4005/4800X
tuner unit
(TU601)
(TU601)
DISC IN SW board
DISPLAY board
RELAY board
SERVO board
MAIN board
LIMIT SW board
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3-6. PRINTED WIRING BOARDS — CD MECHANISM SECTION —
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 diagram:
• 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.
•
%
: indicates tolerance.
•
f
: internal component.
•
C
: panel designation.
•
U
: B+ Line.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from ACC and BATT cords.
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
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.
• Signal path.
F
: FM
f
: AM
J
: CD
for printed wiring boards:
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
•
a
: Through hole.
• b
: Pattern from the side which enables seeing.
(The other layer’s patterns are not indicated.)
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.
Note:
The components identi-
fied by mark
The components identi-
fied by mark
0
or dotted
line with mark
0
are criti-
cal for safety.
Replace only with part
number specified.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
Les composants identifiés par
une marque
0
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.
CDX-4000X/4005/4800X
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(Page 28)
Ref. No.
Location
IC1
C-1
IC5
C-6
IC7
F-2
IC501
F-5
Q101
B-2
• Semiconductor
Location
CDX-4000X/4005/4800X
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KSS- 720A
3-7. SCHEMATIC DIAGRAM — CD MECHANISM SECTION (1/2) — • Refer to page 33 for IC Block Diagrams.
(Page 26)
Note:
• Voltage and waveforms are dc
• Voltage and waveforms are dc
with respect to ground
under no-signal conditions.
no mark : CD PLAY
under no-signal conditions.
no mark : CD PLAY
∗
: Impossible to measure
(Page 25)
(Page 25)
CDX-4000X/4005/4800X
• Waveforms
(MODE:PLAY)
1
2
3
Approx. 620mVp-p
IC1
qf
(FE)
0V
IC1
qh
(RFO)
1.2Vp-p
Approx. 200mVp-p
IC1
qd
(TE)
0V
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