Sony MDS-JB920 Service Manual ▷ View online
MDS-JB920
– 59 –
– 60 –
6-10.
SCHEMATIC DIAGRAM – MAIN Section (3/3) –
•
See page 53 and 54 for Waveforms.
•
See page 72 and 73 for IC Block Diagrams.
Note:
• Voltages and waveforms are dc with respect to ground in
• Voltages and waveforms are dc with respect to ground in
playback mode.
no mark : PB
no mark : PB
∗
: Impossible to measure
(Page 68)
(Page 68)
(Page 58)
(Page 56)
MDS-JB920
– 61 –
– 62 –
6-11.
PRINTED WIRING BOARD – MAIN Board (side A) –
•
See page 45 for Circuit Boards Location.
MDS-JB920
– 63 –
– 64 –
Ref. No.
Location
• Semiconductor Location
D100
J-4
D101
J-4
D102
I-3
D103
I-3
D400
F-6
D700
E-9
D701
E-9
D703
E-5
D704
E-5
D705
A-3
D706
B-4
D707
C-3
D708
C-3
D709
B-4
D710
B-4
D711
B-4
D712
B-5
D713
D-2
D714
D-3
D715
A-1
D716
A-1
D717
A-2
D718
A-2
D719
D-2
D720
B-5
D721
B-4
D800
F-1
L201
H-6
L206
H-5
IC100
J-6
IC101
J-4
IC102
J-4
IC103
J-3
IC200
G-6
IC203
H-4
IC204
G-4
IC205
H-5
IC241
G-3
IC242
H-3
IC243
G-2
IC244
H-2
IC300
E-2
IC301
C-2
IC302
D-1
IC303
C-1
IC304
A-1
IC305
C-1
IC400
F-5
IC700
E-4
IC701
B-3
IC702
B-2
IC703
B-3
IC704
E-3
IC705
D-4
IC800
H-9
Q200
H-1
Q201
G-2
Q202
H-2
Q203
G-1
Q400
F-6
Q401
F-6
Q702
E-3
Q800
F-1
6-12.
PRINTED WIRING BOARDS – MAIN Board (side B) , AC/BAT Boards –
•
See page 45 for Circuit Boards Location.
Note:
•
: Other layers pattern (Side A).
(Page 66)
(Page 66)
(Page 66)
(Page 65)
(Page 64)
(Page 48)
(Page 48)
(Page 69)
(Page 64)
(Page 63)
(Page 64)
Ref. No.
Location
MDS-JB920
– 65 –
– 66 –
6-13.
PRINTED WIRING BOARDS – PANEL Section –
•
See page 45 for Circuit Boards Location.
US, CND
US, CND
(Page 63)
(Page 64)
(Page 63)
(Page 64)
(Page 66)
(Page 65)
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