Sony HCD-VX550 / MHC-VX550 Service Manual ▷ View online
HCD-VX550
25
25
7-4. SCHEMATIC DIAGRAM BD BOARD
• Refer to page 29 for Waveforms.
• Refer to page 45, 46 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
mark
!
or dotted line with mark
!
are critical for safety.
Replace only with part number
specified.
specified.
(Page 26)
HCD-VX550
26
26
7-5. SCHEMATIC DIAGRAM VIDEO (1/2) BOARD
• Refer to page 29 for Waveforms.
• Refer to page 52 for IC Pin Function Description. • Refer to page 28 for Printed Wiring Board.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : VIDEO CD PLAY
no mark : VIDEO CD PLAY
(Page 25)
(Page 36)
HCD-VX550
27
27
7-6. SCHEMATIC DIAGRAM VIDEO (2/2) BOARD
• Refer to page 29 for Waveforms.
• Refer to page 54 for IC Pin Function Description.
• Refer to page 47 for IC Block Diagram. • Refer to page 28 for Printed Wiring Board.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark :VIDEO CD PLAY
no mark :VIDEO CD PLAY
∗
: Impossible to measure
IC504
+3.3V REG
HCD-VX550
28
28
7-7. PRINTED WIRING BOARD VIDEO BOARD
• Refer to page 23 for Circuit Boards Location.
(SIDE A)
(SIDE B)
24
35
A
SL501
SL502
SL503
(27MHz)
SL501
SL502
SL503
1
2
A
B
C
D
E
F
G
H
I
3
4
5
6
7
8
9
10
11
12
13
Ref. No.
Location
D502
I-11
IC503
H-3
IC504
E-8
IC505
H-11
IC506
E-4
IC507
C-6
IC508
C-8
IC509
H-6
IC510
H-5
IC511
C-2
IC514
E-11
IC515
I-16
• Semiconductor
Location
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