Sony MCE-F88K Service Manual page 21

THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
For schematic diagrams.
Note:
• 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
1 / W or less unless otherwise
4
specified.
• % : indicates tolerance.
• : internal component.
s
• C : panel designation.
Note: The components identified by mark 0 or dotted line
with mark 0 are critical for safety.
Replace only with part number specified.
• U : B+ Line.
• V : B– Line.
• H : adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
• Voltages and waveforms are dc with respect to ground in
service mode.
• Voltages and waveforms are dc with respect to ground in
playback mode.
no mark : VIDEO CD COLOR-BAR mode
(Refer to page 14)
( ) : CD play
• 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.
• Circled numbers refer to waveforms.
• Signal path.
m : CHROMA
n : Y
o : VIDEO
J : CD
N : MIC
• Abbreviation
EA : Saudi Arabia model.
HK : Hong Kong model.
MY : Malaysia model.
SP : Singapore mode.
TH : Thai model.
For printed wiring boards.
Note:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
•
: parts mounted on the conductor side.
x
•
a : Through hole.
• f : internal component.
• b : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
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.
• Indication of transistor
C
Q
These are omitted
B C E
B E
These are omitted
WAVEFORMS
– CD SECTION –
1
1.3Vp-p
IC101 eh RFAC
2
2.5V
APPROX 500mVp-p
IC101 wj TE
3
2.5V
APPROX 200mVp-p
IC101 wl FE
4
2.6Vp-p
7.5µsec
IC101 oh MDP
21 21
– VIDEO SECTION –
1 8
4Vp-p
10MHz 27MHz
IC502 qd XOUT IC509 1 XT1
9
2
4Vp-p
8MHz
44.1kHz
IC509 ql LRCK
IC402 w; XOUT
q;
3
1Vp-p
2.11MHz
H
IC509 qj BCLK
IC505 ug COUT
4 qa
2Vp-p
H
33.8MHz
IC505 yl YOUT IC504 8 384FS
5 qs
1.5Vp-p
H 27MHz
IC504 6 27M
Q303 E
qd
6
2Vp-p
33.8MHz
H
Q451 E IC504 qs
7
2.4
Vp-p
H
Q452 E
0.5Vp-p
4.4Vp-p
5.2Vp-p
4.8Vp-p
3.4Vp-p
2.2Vp-p