Sony CDX-C4900R / CDX-C5000R / CDX-C5000RX Service Manual ▷ View online
25
25
tuner unit
(TU1)
(TU1)
DISC IN SW board
KEY board
SUB (CD) board
LOAD SW board
SERVO board
MAIN board
LIMIT SW board
SUB board
KEY MATRIX
LSW901-917
LSW901-917
S901-904
LSW801
KEY
ACTIVE
Q651
KEY
ACTIVE
Q652
DOOR IND
DRIVE
Q551
AMBER
DRIVE
Q901
GREEN
DRIVE
Q902
IR
RECEIVE
KEY ACT
J501
(REMOTE IN)
ROTARY
ENCODER
RE901
IC951
SW504
(NOSE DET)
X502
32.768kHz
36
37
67
73
74
92
93
46
13
14
15
47
76
35
85
48
24
SYSTEM CONTROL
IC501 (3/3)
LCD DRIVE
IC901
KEY IN0
DATA
CL
CE
LCD SO
LCD CKO
LCD CE
POWER
CONT
Q633
+10V REG
Q631
29
DOOR IND
KEY IN1
KEY ACK
AD ON
RC IN1
RC IN0
SIRCS
RE IN0
RE IN1
NOSE SW
ILL +B
XOA
XIA
XO
7
ILL ON
BATT
XI
X501
3.68MHz
LED801-803
LED910-915
LSW901-917
LED901-904
64
63
62
2
1
GREEN
AMBER
LCD901
C4900R/
C5000R
04
SIRCS
Q704
CD
SECTION
C
3-4. BLOCK DIAGRAM — DISPLAY SECTION —
(Page 23)
CDX-C4900R/C5000R/C5000RX
3-5. CIRCUIT BOARDS LOCATION
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26
3-6. PRINTED WIRING BOARDS — CD MECHANISM SECTION —
CDX-C4900R/C5000R/C5000RX
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
: MW
J
: CD
for printed wiring boards:
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
•
x
: parts mounted on the conductor side.
•
a
: Through hole.
• b
: Pattern from the side which enables seeing.
(The other layer’s patterns are not indicated.)
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
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.
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27
(Page 31)
CDX-C4900R/C5000R/C5000RX
Ref. No.
Location
IC1
C-1
IC5
C-6
IC7
F-2
IC501
F-5
Q101
B-2
• Semiconductor
Location
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28
3-7. SCHEMATIC DIAGRAM — CD MECHANISM SECTION (1/2) — • Refer to page 39 for IC Block Diagrams.
(Page 33)
CDX-C4900R/C5000R/C5000RX
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
(Page 29)
(Page 29)
• 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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