Sony MDS-JB730 Service Manual ▷ View online
MDS-JB730
6-6.
SCHEMATIC DIAGRAM – BD Board (2/2) –
•
See page 43 for Waveforms.
•
See page 55 for IC Block Diagrams.
– 41 –
– 42 –
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : STOP
(
no mark : STOP
(
) : PLAY
<
> : REC
∗
: Impossible to measure
The components identified by mark
!
or dotted
line with mark
!
are critical for safety.
Replace only with part number specified.
(Page 47)
(Page 48)
(Page 39)
(Page 39)
(Page 39)
(Page 40)
(Page 40)
(Page 40)
(Page 40)
MDS-JB730
– 43 –
– 44 –
• Waveforms
– BD Board –
– BD Board –
1
IC101
1
,
2
(I, J) (Play mode)
5
IC121
@¶
(LRCK)
2
IC101
4
(A) (Play mode)
4
IC121
!§
(OSCI)
6
IC121
@•
(XBCK)
0.46 Vp-p
0.1 Vp-p
3
IC101
8
,
9
(E, F) (Play mode)
7
IC121
@ª
(FS256)
8
IC121
(º
(FS4)
0.06Vp-p
3.1 Vp-p
45.158 MHz
3.8 Vp-p
2.8224 MHz
3.2 Vp-p
44.1 kHz
3.8 Vp-p
11.29 MHz
3.2 Vp-p
176.4 kHz
– MAIN Board –
1
IC501
!∞
(XIN)
2.9 Vp-p
10 MHz
5
IC321
!™
(BICK)
2
IC322
2
,
3
,
5
4
IC321
!¡
(LRCK)
3
IC321
9
(XTI)
6.5 Vp-p
45.1584 MHz
5.4 Vp-p
45.1584 MHz
4.1 Vp-p
44.1 kHz
3.9 Vp-p
2.8224 MHz
6-7.
SCHEMATIC DIAGRAM – SW Board –
6-8.
PRINTED WIRING BOARD – SW Board –
•
See page 36 for Circuit Boards Location.
05
(LOADING)
(PACK OUT)
(REC POSITION)
PLAY
(Page 46)
– DISP board –
1
IC771
^§
(OSCO)
2
IC771
^∞
(OSCI)
3.6 Vp-p
2.618 MHz
7.6 Vp-p
2.1 MHz
(Page 47)
MDS-JB730
– 45 –
– 46 –
6-9.
PRINTED WIRING BOARD – MAIN Board –
•
See page 36 for Circuit Boards Location.
(Page 38) (Page 51)
(Page 38)
(Page 52)
(Page 52)
(Page 44)
Ref. No.
Location
Ref. No.
Location
D341
E-13
D342
E-13
D343
E-13
D344
E-13
D411
E-4
D412
E-4
D413
D-2
D414
D-2
D415
E-4
D416
E-4
D421
C-2
D423
C-1
D431
D-3
D432
D-3
D439
G-4
D451
F-6
D452
F-6
D453
G-6
D454
F-6
D471
B-13
D851
G-7
IC101
F-11
IC201
F-12
Ref. No.
Location
IC301
F-13
IC310
B-2
IC321
D-13
IC322
C-12
IC431
G-4
IC471
B-12
IC501
E-9
IC601
G-9
IC611
G-10
IC661
G-9
Q187
F-10
Ref. No.
Location
Q287
F-11
Q306
F-5
Q401
C-2
Q402
C-1
Q403
C-1
Q404
C-1
Q471
B-12
Q472
B-13
Q851
G-7
• Semiconductor Location
MDS-JB730
6-10. SCHEMATIC DIAGRAM – MAIN Board (1/2) –
•
See page 43 for Waveforms.
– 47 –
– 48 –
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : PLAY
no mark : PLAY
(Page 54)
(Page 41)
(Page 44)
(Page 49)
(Page 54)
(Page 41)
(Page 49)
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