Sony HCD-GRX50 / HCD-R770 / HCD-RXD7 / MHC-GRX50 / MHC-R770 / MHC-RXD7 Service Manual ▷ View online
HCD-GRX50/R770/RXD7
– 47 –
– 48 –
7-16.
SCHEMATIC DIAGRAM – MAIN Board (2/4) –
• Voltages are dc with respect to ground under no-signal
(detuned) conditions.
no mark : FM
no mark : FM
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
46)
(Page
50)
(Page 52)
(Page 63)
HCD-GRX50/R770/RXD7
– 49 –
– 50 –
7-17.
SCHEMATIC DIAGRAM – MAIN Board (3/4) –
• Voltages are dc with respect to ground under no-signal
(detuned) conditions.
no mark : TUNER (FM/AM)
(
no mark : TUNER (FM/AM)
(
) : CD PLAY
{
} : TAPE PLAYBACK (DECK A)
[
] : TAPE PLAYBACK (DECK B)
〈〈
〉〉
: RECORD
(Page 47)
(Page 51)
(Page 63)
(Page 56)
(Page 51)
(Page 46)
(Page 42)
(Page 40)
HCD-GRX50/R770/RXD7
– 51 –
– 52 –
7-18.
SCHEMATIC DIAGRAM – MAIN Board (4/4) –
•
See page 59 for Waveforms.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : TUNER (FM/AM)
(
no mark : TUNER (FM/AM)
(
) : CD PLAY
{
} : TAPE PLAYBACK (DECK A)
[
] : TAPE PLAYBACK (DECK B)
〈〈
〉〉
: RECOARD
(Page
46)
(Page
50)
(Page
50)
(Page 48)
HCD-GRX50/R770/RXD7
– 53 –
– 54 –
7-19.
PRINTED WIRING BOARD – PANEL Board –
•
See page 28 for Circuit Boards Location.
D628
E-4
D629
D-5
D630
F-7
D631
F-4
D632
F-8
D701
C-9
IC601
B-5
IC602
B-10
IC603
B-7
IC604
C-3
IC711
C-9
IC712
F-8
Ref. No.
Location
Ref. No.
Location
D610
C-2
D611
E-1
D612
C-2
D613
C-5
D614
C-6
D615
C-7
D616
C-8
D619
B-2
D620
A-2
D621
B-9
D622
A-9
D624
D-4
D627
E-7
• Semiconductor Location
Ref. No.
Location
Q601
C-2
Q602
C-1
Q603
C-1
Q604
A-3
Q605
A-2
Q606
B-3
Q607
A-9
Q608
A-9
Q609
A-9
Q610
B-9
Q611
B-8
Q612
B-8
Q613
B-8
(Page 43)
(Page 57)
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