HCD-HX3, HCD-HX5, HCD-HX7 - Sony Audio Service Manual (repair manual). Page 23

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HCD-HX3/HX5/HX7
23
23
HCD-HX3/HX5/HX7
•
Circuit Boards Location
•
Note For Printed Wiring Boards and Schematic Diagrams
•
Indication of transistor
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.
•
2
: nonflammable resistor.
•
C
: panel designation.
•
A
: B+ Line.
•
Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
– CD Board –
no mark : CD PLAY
[
] : USB
– USB and USB POWER Boards –
no mark : USB
– BT Board –
no mark : BLUETOOTH
– XM and XM REGULATOR Boards –
no mark : XM
– Other Boards –
no mark : TUNER (FM/AM)
(
) : CD PLAY
[
] : USB
{
 } : BLUETOOTH
〈〈
 
〉〉
: XM
<
> : SIRIUS
∗
: Impossible to measure
•
Voltages are taken with a VOM (Input impedance 10 M
Ω
).
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.
F
: AUDIO
f
: TUNER (FM/AM)
J
: CD PLAY
d
: USB
E
: BLUETOOTH IN
j
: BLUETOOTH OUT
: XM
O
: SIRIUS
h
: AUDIO IN
•
Abbreviation
AUS
: Australian model
CND : Canadian model
KR
: Korean 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.)
Caution:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side)
the parts face are indicated.
•
Circuit Boards Location
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
Q

Note:
The components identi-
fied by mark 
0
 or dotted
line with mark 
0
 are criti-
cal for safety.
Replace only with part
number specified.

Note:
Les composants identifiés par
une marque 
0
 sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce por tant le numéro
spécifié.
Caution:
Pattern face side:
Parts on the pattern face side seen from
(Side B)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Side A)
the parts face are indicated.
FRONT PANEL board
TOP PANEL (FUNCTION) board
TOP PANEL (PLAY) board
XM board
(HX7)
USB POWER board
(HX3/HX5)
SPEAKER board
SUB POWER board
BT board
(HX5/HX7)
H/P SUPPORT board
HEADPHONE board
TUNER (FM/AM)
MAIN board
SWITCHING POWER board
AMP board
ANT board
(HX5/HX7)
USB board
(HX3/HX5)
MOTOR board
CD board
XM REGULATOR  board
(HX7)
Ver. 1.2
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