Diagrams - Sony HCD-GX450 Service Manual

THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
For Schematic Diagrams.
Note:
• 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.
• C : panel designation.
Note:
Note:
Les composants identifiés
The components identi-
fied by mark 0 or dot- par une marque 0 sont cri-
ted line with mark 0 are tiques pour la sécurité.
critical for safety. Ne les remplacer que par une
piéce por tant le numéro
Replace only with part
number specified. spécifié.
• A : B+ Line.
• B : B– Line.
• H : adjustment for repair.
• Voltages and waveforms are dc with respect to ground un-
der no-signal (detuned) conditions.
• Voltages are taken with VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production
tolerances.
– BD SECTION –
no mark : CD PLAY
– Other SECTION –
no mark : FM
( ) : CD PLAY
〈〈 〉〉 : TAPE PLAY
[ ] : TAPE REC
: Impossible to measure
*
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: TUNER
E : PB (DECK A)
d : PB (DECK B)
a
: REC (DECK B)
J
: CD
f : AUDIO
L : VIDEO
• Abbreviation
CND : Canadian model
HCD-GX450
SECTION 4

DIAGRAMS

For Printed Wiring Boards.
Note:
• X : parts extracted from the component side.
• : Pattern from the side which enables seeing.
Caution:
Pattern face side: Parts on the pattern face side seen from
(SIDE A) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(SIDE B) the parts face are indicated.
• Indication of transistor.
C
Q These are omitted.
B E
Q
B C E
These are omitted.
• Circuit Boards Location
SW board
MOTOR (LD) board
TRANS AC2 board
SUB-TRANS board
REM board
PANEL board
6 STREAM LED board
GAME JACK board
17 17
SENSOR board
BD board
MOTOR (TB) board
DRIVER board
SUB-WOOFER board
AMP board
TRANS AC1 board
VIDEO OUT board
MAIN board
H/P JACK board
HCD-GX450