Sony CMT-HX3 Service Manual page 139

• Note For Printed Wiring Boards and Schematic Diagrams
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.
• Indication of transistor
C
Q These are omitted.
B E
Q
B C E
These are omitted.
HCD-HX3/HX5/HX7
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. (p: pF)
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.
•
f : internal component.
• 2 : nonflammable resistor.
• C : panel designation.
Note: Note:
The components identi- Les composants identifiés par
fied by mark 0 or dotted une marque 0 sont critiques
line with mark 0 are criti-
pour la sécurité.
cal for safety. Ne les remplacer que par une
Replace only with part pièce por tant le numéro
number specified. spécifié.
• 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
– Other Boards –
no mark : TUNER (FM/AM)
( ) : CD PLAY
[ ] : USB
∗
: Impossible to measure
• 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.
F
: AUDIO
f
: TUNER (FM/AM)
J
: CD PLAY
d
: USB
h : AUDIO IN
• Abbreviation
AR : Argentina model
E51 : Chilean and Peruvian models
MX : Mexican model
RU : Russian model
• Circuit Boards Location • Circuit Boards Location
TOP PANEL (FUNCTION) board
FRONT PANEL board
CD board
MOTOR board
TUNER (FM/AM)
USB board
29 29
HCD-HX3/HX5/HX7
TOP PANEL (PLAY) board
USB POWER board
SPEAKER board
SUB POWER board
HEADPHONE board
MAIN board
SWITCHING POWER board
VOLTAGE SELECTOR board
(E, Chilean and Peruvian models)
AMP board