Sony HCD-VX550 / MHC-VX550 Service Manual ▷ View online
HCD-VX550
29
29
• Waveforms
1
IC503
4
(CD-LRCK)
(CD Play mode)
7
IC511
8
(OSC IN)
qd
J301
3
(COUT)
qf
IC509
4
(MCKO)
qg
IC509
w;
(384FSO)
qh
IC509
wa
(768FSO)
8
IC511
qgqhqjqk
(CD Stop mode)
9
IC514
wj
(VSY)
0
IC514
wk
(HSY)
qa
IC514
2
-
8
,
0
(YUVO-YUV7)
qs
J301
4
(YOUT)
2
IC503
8
(CD-LRCK)
3
IC503
0
(CD-BCK)
4
IC505
qd
(XOUT)
5
IC502
qg
(XIN)
6
IC511
1
(CLK)
4.8 Vp-p
0.47
µ
sec
4.8 Vp-p
4.8 Vp-p
4.8 Vp-p
12.5
µ
sec
45
µ
sec
59
µ
sec
37
µ
sec
7.5
µ
sec
0.47
µ
sec
0.15
µ
sec
4.0 Vp-p
10 MHz
3.0 Vp-p
10 MHz
3.5 Vp-p
4.8 Vp-p
4.8 Vp-p
5.0 Vp-p
16.7 ms
5.0 Vp-p
H
36 nsec
2.0 Vp-p
H
H
1.8 Vp-p
4.6 Vp-p
30 nsec
4.2 Vp-p
4.8 Vp-p
BD SECTION
VIDEO SECTION
1
IC101
wg
(MDP)
6
IC101
yg
(LRCK)
7
IC101
yj
(BCLK)
8
IC101
ua
(XTAI)
9
IC103
qh
(RFO)(CD Play mode)
3
IC101
ra
(TE)(CD Play mode)
4
IC101
rd
(RFDC)(CD Play mode)
5
IC101
t;
(RFAC)(CD Play mode)
2
IC101
el
(FE)(CD Play mode)
2.6 Vp-p
7.5
µ
s
0.2 Vp-p
0.5 Vp-p
1.3 Vp-p
1.3 Vp-p
4.5 Vp-p
22.7
µ
s
4.5 Vp-p
4.3 Vp-p
474 ns
33.8 MHz
1.3 Vp-p
HCD-VX550
30
30
7-8. PRINTED WIRING BOARDS CD MOTER SECTION
• Refer to page 23 for Circuit Boards Location.
16
B
DISC TRAY
SLIDE
(DISC TRAY ADDRESS DETECT)
DISC TRAY
TURN
1-658-577-
C
(Page 35)
(Page 35)
HCD-VX550
31
31
7-9. SCHEMATIC DIAGRAM CD MOTOR SECTION
• Refer to page 46 for IC Block Diagrams.
• Voltages are dc with respect to ground under no-signal
conditions.
no mark : CD STOP
no mark : CD STOP
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
16
(Page 36)
(Page 36)
HCD-VX550
32
32
7-10.
PRINTED WIRING BOARD AUDIO BOARD
• Refer to page 23 for Circuit Boards Location.
16
D
(
)
(Page 35)
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