Sony HCD-EC599, Service Manual

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HCD-EC599
HCD-EC599
For Schematic Diagrams.
Note:
• All capacitors are in μ F unless otherwise noted. (p: pF) 50
WV or less are not indicated except for electrolytics and
tantalums.
• All resistors are in Ω and 1/4 W or less unless otherwise
speci fi ed.
•
f
: internal component.
•
2
: non fl ammable resistor.
•
C
: panel designation.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
•
A
: B+ Line.
•
B
: B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
– BD76 Board –
no mark : CD MODE
– Other Boards –
no mark : TUNER (FM/AM)
• Voltages are taken with VOM (Input impedance 10 M

).
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.
F
: AUDIO
J
: CD
f
: FM/AM
E
: USB
• Abbreviation
AR :
Argentina model
E2 : 120V AC area in E model
E51 : Chilean and Peruvian models
MX : Mexican model
For Printed Wiring Boards.
Note:
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
W
: indicates side identi fi ed with part number.
• : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• Indication of transistor.
C
B
These are omitted.
E
Q
B
These are omitted.
C E
Q
Caution:
Pattern face side:
(Conductor Side)
Parts face side:
(Component Side) Parts on the pattern face side seen
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
• Abbreviation
AR :
Argentina model
E2 : 120V AC area in E model
E51 : Chilean and Peruvian models
MX : Mexican model
Note: The components identi fi ed by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number speci fi ed.
• Circuit Boards Location
PANEL board
POWER board
DB76 board
TUNER1 board
TRANS board
• Waveforms
– BD76 Board – – PANEL Board –
60.6 ns
50 mV/DIV, 20 nsec/DIV
2
IC101
us
(XOUT)
261.7 mVp-p
100 mV/DIV, 20 nsec/DIV
3
IC901
7
(CF2)
84 ns
350.0 mVp-p
200 mV/DIV, 500 nsec/DIV
1
IC101
2
(RFOUT)
(CD play mode)
0.6 to 1.5 Vp-p
56.0 ns
100 mV/DIV, 20 nsec/DIV
4
IC100
qh
(MAIN-CLK-OUT)
280 mVp-p
– TUNER1 Board –
5
IC101
qk
(X1)
200 mV/DIV, 5 sec/DIV
32.768 kHz
0.6 Vp-p