Read Sony CMT-VB5 / HCD-VB5 Service Manual online
HCD-VB5
15
15
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Printed Wiring Board:
•
•
X
: parts extracted from the component side.
•
f
: internal component.
•
b
: Pattern from the side which enables seeing.
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(Side B)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Side A)
the parts face are indicated.
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
•
2
: nonflammable resistor.
•
5
: fusible resistor.
•
C
: panel designation.
•
U
: B+ Line.
•
V
: B– Line.
•
H
: adjustment for repair.
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
no mark : FM
<
tion tolerances.
no mark : FM
<
> : CD
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
• Signal path.
F
: TUNER (FM/AM)
L
: MD/VIDEO
g
: MIC
J
: CD PLAY (ANALOG OUT)
c
: CD PLAY (DIGITAL OUT)
•
Indication of transisitor.
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
Q
B
These are omitted.
C
E
Q
5-2. CIRCUIT BOARDS LOCATION
5-3. Waveforms
1
IC601
qa
STOP MODE
3.0Vp-p
32.768kHz
3.4Vp-p
2
IC601
qd
STOP MODE
16MHz
– MAIN BOARD –
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
– BD SECTION –
1
IC101
t;
(RFAC)(CD Play mode)
1.3 Vp-p
2
IC101
ra
(TE)(CD Play mode)
0.5 Vp-p
3
IC101
el
(FE)(CD Play mode)
0.2 Vp-p
4
IC101
wg
(MDP)
2.6 Vp-p
15.1
µ
s
4
J301
3
(COUT)
9
IC505
(VCK-IN)
7
IC505
od
(VSYNC)
8
IC505 (HSYNC)
3
J301
4
(YOUT)
1
IC502
qd
(XOUT)
37 nsec
4.6 Vp-p
10 MHz
3.5 Vp-p
20 ms
3.2 Vp-p
64
µ
s
2.0 Vp-p
H
H
2.0 Vp-p
5.4 Vp-p
101
106
2
IC502
wh
(BGP)
5
J302 (VIDEO OUT)
6
IC505
ih
(DA-XCLK)
3.6 Vp-p
17 MHz
q;
IC505
(DA-LRCK)
108
qa
IC505
(DA-BCK)
111
qs
IC509
w;
(384FSO)
qd
IC509
wf
(XT2)
qf
IC509
4
(MCKO)
4.5 Vp-p
H
1.3 Vp-p
H
4.5 Vp-p
22.7
µ
s
4.5 Vp-p
472 ns
5.0 Vp-p
59 ns
2.0 Vp-p
37 ns
5.2 Vp-p
37 ns
–VIDEO SECTION –
BACK PANEL board
LED board
PANEL board
MIC/PC MIX board
LOADING board
BD board
MAIN board
VIDEO board
TUNER (FM/AM)
Ref. No.
Location
• Semiconductor Location
(MAIN BOARD)
Ref. No.
Location
D2
D-7
D3
B-8
D4
C-5
D5
C-3
D6
F-7
D7
F-6
D8
E-7
D9
F-7
D10
G-4
D14
D-6
D15
D-6
D16
D-6
D21
G-5
D321
D-10
D501
B-1
D551
F-5
D552
F-5
D553
F-6
D554
G-3
D555
E-6
D556
E-6
D601
D-4
IC1
G-3
IC2
G-6
IC3
E-6
IC4
F-5
IC201
C-3
IC202
C-2
IC301
D-9
IC501
B-1
IC551
G-4
IC601
E-4
Q1
B-8
Q2
G-5
Q3
G-4
Q4
G-4
Q201
C-7
Q202
D-4
Q203
D-4
Q204
D-5
Q251
C-7
Q254
D-5
Q322
D-10
Q323
D-10
Q324
D-10
Q551
G-3
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