Sony CMT-HX3 Service Manual page 93

HCD-HX3/HX5/HX7
SERVICE MANUAL
Ver. 1.2 2007.06
SUPPLEMENT-1
File this supplement with the service manual.
Subject: Change of USB POWER board
(Suffix-12, -13, -14, -21, -22)
Change of MAIN and SWITCHING POWER
boards (Suffix-13, -14, -21, -22)
In this set, MAIN, SWITCHING POWER and USB POWER boards have
been changed in the midway of production.
Printed wiring board, schematic diagrams and electrical parts list of new
type are described in this supplement-1.
Refer to original service manual for other information.
1. NEW/FORMER DISCRIMINATION
– MAIN Board (Component Side) –
Former : 1-873-240-11, -12
New : 1-873-240-13, -14, -21, -22
9-887-618-81
HCD-HX3/HX5/HX7
US Model
HCD-HX7
Canadian Model
AEP Model
E Model
HCD-HX3/HX5
UK Model
Australian Model
HCD-HX5
– SWITCHING POWER Board (Component Side) –
Former : 1-873-250-11, -12
New : 1-873-250-13, -14, -21, -22
– USB POWER Board (Component Side) –
Former : 1-873-248-11
New : 1-873-248-12, -13, -14, -21, -22
2. DIAGRAMS
• 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.)
• Indication of transistor
C
Q These are omitted.
B E
Q
B C E
These are omitted.
1
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 are dc with respect to ground under no-signal
(detuned) conditions.
– USB POWER Board –
no mark : USB
– Other Boards –
no mark : TUNER (FM/AM)
( ) : CD PLAY
[ ] : USB
{ } : BLUETOOTH
〈〈 〉〉 : XM
< > : SIRIUS
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Signal path.
F : AUDIO
f : TUNER (FM/AM)
J : CD PLAY
d
: USB
: XM
O
: SIRIUS
h : AUDIO IN
• Abbreviation
AUS : Australian model
CND : Canadian model
KR : Korean model
SP : Singapore model