Sony CDX-3700 Service Manual ▷ View online
BLK
YEL
RED
BLU
BLU/WHT
GR
Y/BLK
VIO
VIO/BLK
GRN
GRN/BLK
WHT
WHT/GRN
GR
Y
AMP REM
FRONT R-CH
REAR R-CH
REAR L-CH
FRONT L-CH
+
- + - + - +
-
S602
FREQUENCY
SELECT
FM50k
AM9k
FM200k
AM10k
S600
(RESET)
( )
– 19 –
– 20 –
CDX-3700
(Page 30)
CDX-3700
– 21 –
– 22 –
3-4. SCHEMATIC DIAGRAM — MAIN SECTION (1/3) — • Refer to page 31 for IC Block Diagrams.
(Page 23)
(Page 25)
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.
•
¢
: 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.
• Voltage and waveforms are dc with respect to ground
under no-signal conditions.
no mark : CD PLAY
no mark : CD PLAY
• 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.
J
: CD
Note: The components identified by mark
!
or dotted line
with mark
!
are critical for safety.
Replace only with part number specified.
• Waveforms
(MODE:PLAY)
3
1
2
Approx. 600mVp-p
IC102
@£
(FE)
0V
IC102
9
(ARF)
1.3Vp-p
Approx. 200mVp-p
IC102
@™
(TE)
0V
– 23 –
– 24 –
CDX-3700
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.
•
%
: indicates tolerance.
•
C
: panel designation.
•
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
(detuned) condition.
no mark : FM
<
no mark : FM
<
> : CD PLAY
• 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.
F
: FM
f
: AM
J
: CD
3-5. SCHEMATIC DIAGRAM — MAIN SECTION (2/3) — • Refer to page 32 for IC Block Diagrams.
(Page 26)
(Page 22)
CDX-3700
– 25 –
– 26 –
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.
•
¢
: internal component.
•
U
: B+ Line.
3-6. SCHEMATIC DIAGRAM — MAIN SECTION (3/3) — • Refer to page 32 for IC Block Diagrams.
• 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
(detuned) condition.
no mark : FM
(
no mark : FM
(
) : AM
<
> : CD PLAY
• 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.
F
: FM
f
: AM
(Page 22)
(Page 23)
(Page 27)
Click on the first or last page to see other CDX-3700 service manuals if exist.