Sony HCD-GRX70 / HCD-GRX70J / HCD-RXD80 / MHC-GRX70 / MHC-GRX70J / MHC-RXD80 Service Manual ▷ View online
HCD-GRX70/GRX70J/RXD80
– 31 –
– 32 –
7-7.
SCHEMATIC DIAGRAM – BD Board –
•
See page 59 for Waveforms.
•
See page 64 for IC Block Diagrams.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : CD STOP
(
no mark : CD STOP
(
) : CD PLAY
The components identified by mark
!
or dotted
line with mark
!
are critical for safety.
Replace only with part number specified.
Les composants identifiés par une marque
!
sont
critiques pour la sécurité.
Ne les remplacer que
par une piéce portant le numéro spécifié.
(Page 45)
HCD-GRX70/GRX70J/RXD80
– 33 –
– 34 –
7-8.
PRINTED WIRING BOARDS – CD MOTOR Section –
•
See page 28 for IC Circuit Boards Location.
05
B
DISC TRAY
SLIDE
(DISC TRAY ADDRESS DETECT)
DISC TRAY
TURN
1-658-577-
C
(Page 43)
(Page 43)
HCD-GRX70/GRX70J/RXD80
– 35 –
– 36 –
7-9.
SCHEMATIC DIAGRAM – CD MOTOR Section –
•
See page 65 for IC Block Diagrams.
• Voltages are dc with respect to ground under no-signal
conditions.
no mark : CD STOP
no mark : CD STOP
(Page 45)
(Page 45)
DISC TRAY
ADDRESS DETECT
DISC TRAY SLIDE
CLOSE
OPEN
B
(DISC TRAY SLIDE)
DISC IN DETECT
SENSOR
DISC TRAY
SENSOR
DISC
TRAY
TURN
DISC TRAY TURN
MOTOR DRIVER
LEVEL SHIFT
C
HCD-GRX70/GRX70J/RXD80
– 37 –
– 38 –
7-10.
PRINTED WIRING BOARD – AUDIO Board –
•
See page 28 for Circuit Boards Location.
(Page 43)
05
D
(
)
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