Sony CDX-C8000R / CDX-C8000RX Service Manual ▷ View online
33
33
tuner unit
(TUX201)
(TUX201)
DISC IN SW board
DSO board
KEY board
SUB (CD) board
LOAD SW board
SERVO board
MAIN board
LIMIT SW board
SUB board
3-5. CIRCUIT BOARDS LOCATION
CDX-C8000R/C8000RX
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.
•
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.
• 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
4
5
6
7
8
IC501
uj
(LRCK)
IC501
ul
(PCMO)
IC501
ia
(BCK)
16.89MHz
IC501
ih
(XTAI)
10MHz
IC5
ea
(X IN)
5Vp-p
5Vp-p
5.7Vp-p
3.8Vp-p
2Vp-p
22.7µsec
474nsec
474nsec
34
34
3-6. PRINTED WIRING BOARDS — CD MECHANISM SECTION —
CDX-C8000R/C8000RX
35
35
Ref. No.
Location
IC1
C-1
IC5
C-6
IC7
F-2
IC501
F-5
Q101
B-2
• Semiconductor
Location
CDX-C8000R/C8000RX
(Page 39)
36
36
• Refer to page 33 for Waveforms.
3-7. SCHEMATIC DIAGRAM — CD MECHANISM SECTION (1/2) — • Refer to page 50 for IC Block Diagrams.
(Page 42)
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 37)
(Page 37)
CDX-C8000R/C8000RX
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