Sony HCD-HPR90 - Receiver Component For Mini Hi-fi Systems, Service Manual

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2
HCD-HPR90/HPR99XM
2. DIAGRAMS
•
Note for Printed Wiring Boards and Schematic Diagrams
Note on Schematic Diagram:
•
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
specified.
•
f
: internal component.
•
A
: B+ Line.
•
B : B– Line.
•
Voltages are dc with respect to ground under no-signal
(detuned) conditions.
no mark : TUNER (FM/AM)
(
) : CD PLAY
〈〈 〉〉
: XM
•
Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
•
Signal path.
F : TUNER (FM/AM)
J
: XCD PLAY
: XM
f
: AUDIO IN
•
Abbreviation
AR
: Argentina model
AUS : Australian model
CND : Canadian model
E51
: Chilean and Peruvian models
MX : Mexican model
SP : Singapore model
Note on Printed Wiring Board:
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
f
: internal component.
•
: 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