Sony CDX-C90R Service Manual page 12

CDX-C90R
3-7. SCHEMATIC DIAGRAM — CD MECHANISM SECTION (1/3) — • Refer to page 63 for IC Block Diagrams.
• Waveforms (MODE:PLAY)
1 3
0V
Approx. 200mVp-p
!¢
!¶
IC1 (TE)
IC1
2
4
0V
Approx. 620mVp-p
!§
IC1 (FE) IC501
5 7
5.8Vp-p
1.2Vp-p
22.7µsec
*¶
(RFO) (LRCK)
IC501
6
2.6Vp-p
5.7Vp-p
7.6µsec 474nsec
&ª (¡
(MDP) IC501 (BCK)
– 37 –
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
3.2Vp-p
and tantalums.
• All resistors are in Ω and
16.89MHz
specified.
`⁄‚‹
(XTAI)
IC501
• % : 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.
(Page 40)
• Voltage and waveforms are dc with respect to ground
under no-signal conditions.
no mark : CD PLAY
∗
1 / W or less unless otherwise : Impossible to measure
4
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Signal path.
J : CD
– 38 –