Sony CDX-3250 Service Manual page 22

• Waveforms
– CD MECHANISM SECTION –
(MODE:PLAY)
1
Approx. 620mVp-p
1
(FEO)
IC2
2
1.2Vp-p
#¡
(RFO)
IC2
3
Approx. 200mVp-p
$™
(TEO)
IC2
4
2.6Vp-p
7.6µsec
3
(MDP)
IC1
5
5.8Vp-p
22.7µsec
@º
(LRCK)
IC1
6
5.7Vp-p
474nsec
@™
(BCK)
IC1
7
3.2Vp-p
16.89MHz
#¢
(XTAI)
IC1
– MAIN SECTION (1/2) –
1
0V
44.1kHz
4
IC701
2
2.11MHz
6
IC701
3
0V
9
IC701
!™
IC701
4
16.92MHz
!ª
IC701
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ω and
specified.
Note: The components identified by mark ! or dotted line
• U
• H
• 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
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
J
– MAIN SECTION (2/2) –
1
5Vp-p
(LRCK)
5Vp-p
(BCK)
3.4Vp-p
(ROUT)
(LOUT)
4Vp-p
(CLKO)
1 / W or less unless otherwise
4
with mark ! are critical for safety.
Replace only with part number specified.
: B+ Line.
: adjustment for repair.
∗
: Impossible to measure
: CD
– 22 –
5.2Vp-p
4.5MHz
&§
(XOUT)
IC801