Sony CDX-C90R Service Manual ▷ View online
– 37 –
– 38 –
CDX-C90R
3-7. SCHEMATIC DIAGRAM — CD MECHANISM SECTION (1/3) — • Refer to page 63 for IC Block Diagrams.
Note:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
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.
Note: The components identified by mark
!
or dotted line
with mark
!
are critical for safety.
Replace only with part number specified.
•
U
: B+ Line.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from ACC and BATT cords.
• Voltage and waveforms are dc with respect to ground
under no-signal conditions.
no mark : CD PLAY
no mark : CD PLAY
∗
: Impossible to measure
• 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.
• Signal path.
J
: CD
Approx. 200mVp-p
IC1
!¢
(TE)
• Waveforms
(MODE:PLAY)
1
2
3
4
5
6
7
Approx. 620mVp-p
IC1
!§
(FE)
0V
IC1
!¶
(RFO)
1.2Vp-p
0V
IC501
&ª
(MDP)
2.6Vp-p
7.6
µ
sec
IC501
*¶
(LRCK)
5.8Vp-p
22.7
µ
sec
IC501
(¡
(BCK)
5.7Vp-p
474nsec
16.89MHz
IC501
`⁄‚‹
(XTAI)
3.2Vp-p
(Page 40)
(Page 41)
– 39 –
– 40 –
CDX-C90R
3-8. SCHEMATIC DIAGRAM — CD MECHANISM SECTION (2/3) — • Refer to page 63 for IC Block Diagrams.
Note:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
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.
•
¢
: internal component.
Note: The components identified by mark
!
or dotted line
with mark
!
are critical for safety.
Replace only with part number specified.
•
U
: B+ Line.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from ACC and BATT cords.
• Voltage is dc with respect to ground under no-signal
condition.
no mark : CD PLAY
no mark : CD PLAY
∗
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
(Page 38)
(Page 41)
– 41 –
– 42 –
CDX-C90R
3-9. SCHEMATIC DIAGRAM — CD MECHANISM SECTION (3/3) — • Refer to page 63 for IC Block Diagrams.
Note:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
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.
•
U
: B+ Line.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from ACC and BATT cords.
• Voltage is dc with respect to ground under no-signal
condition.
no mark : CD STOP
no mark : CD STOP
∗
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Signal path.
J
: CD
c
: digital out
(Page 38)
(Page 40)
(Page 53)
– 43 –
– 44 –
CDX-C90R
3-10. PRINTED WIRING BOARD — AUDIO SECTION —
Note:
• X
: parts extracted from the component side.
•
r
: 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)
parts face are indicated.
(IC108)
B-7
(IC109)
B-7
Q101
A-6
Q102
A-7
Q103
A-6
Q104
B-6
Q105
B-6
(Q106)
B-5
(Q107)
B-5
(D101)
B-3
(D102)
A-4
(D103)
A-4
(IC101)
B-2
IC102
B-2
IC103
B-3
IC104
B-3
(IC105)
A-6
(IC106)
A-5
(IC107)
B-5
• Semiconductor Location
Ref. No.
Location
Ref. No.
Location
(
) : SIDE B
(Page 51)
(Page 51)
(Page 51)
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