Read Sony CMT-C7NT / HCD-C7NT Service Manual online
45
45
HCD-C7NT
C
B
These are omitted.
E
Q
Note on Printed Wiring Boards:
•
•
X
: parts extracted from the component side.
•
a
: Through hole.
•
Y
: parts extracted from the conductor side.
•
b
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• Indication of transistor.
• Indication of transistor.
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 V or less are not indicated except for electrolytics and
tantalums.
tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
•
5
: fusible resistor.
•
C
: panel designation.
•
A
: B+ Line.
•
B
: B– Line.
• Circuit Boards Location
6-1. Note For Printed Wiring Boards and Schematic Diagrams
(In addition to this, the necessary note is printed in each block)
SECTION 6
DIAGRAMS
• Waveforms
B
These are omitted.
C
E
Q
POWER board
HP board
AUDIO board
JACK board
PANEL board
30.5
µ
s
3.1 Vp-p
50 ns
3.2Vp-p
29.5
µ
s
4.0Vp-p
1.3Vp-p
0.2Vp-p
1.6Vp-p
3.5Vp-p
176.4kHz
1
IC101
us
XTAO
2
IC101
ek
(RF)
3
IC101
ef
(FE)
(Play mode)
6
IC501
eh
XT2
5
IC151
o;
(FS4)
VOLT/DIV : 1V AC
TIME/DIV : 20 nsec
TIME/DIV : 20 nsec
9
IC1005
wd
(XI)
4.8 Vp-p
166 ns
q;
IC1004
wd
(XI)
VOLT/DIV : 2V AC
TIME/DIV : 100 nsec
TIME/DIV : 100 nsec
3.2 Vp-p
99 ns
qa
IC1003
qa
XOUT
VOLT/DIV : 1V AC
TIME/DIV : 40 nsec
TIME/DIV : 40 nsec
3.8 Vp-p
83ns
qs
IC1002
rj
(XTAL)
VOLT/DIV : 1V AC
TIME/DIV : 40 nsec
TIME/DIV : 40 nsec
VOLT/DIV : 1V AC
TIME/DIV : 40 nsec
TIME/DIV : 40 nsec
VOLT/DIV : 1V AC
TIME/DIV : 20
TIME/DIV : 20
µ
sec
4
IC101
wh
(TE)
(Play mode)
7
IC501
ek
X2
8
IC1007
wk
X2 (XTO)
83 ns
4.1Vp-p
VOLT/DIV : 1V AC
TIME/DIV : 40 nsec
TIME/DIV : 40 nsec
4.3 Vp-p
80 ns
VOLT/DIV : 1V AC
TIME/DIV : 40 nsec
TIME/DIV : 40 nsec
BD (CD) board
AMP POWER board
UCOM board
SW board
CONNECTOR board
BD (MD) board
MD DIGITAL board
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
• Abbreviation
KR
: Korean model
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• 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.
F
: FM
J
: CD (ANALOG)
c
: CD (DIGITAL)
p
: PB (MD)
l
: REC (MD)
I
: DIGITAL IN (OPTICAL)
E
: PB (TAPE)
G
: REC (TAPE)
J
: USB
• Abbreviation
KR
: Korean model
J
Click on the first or last page to see other CMT-C7NT / HCD-C7NT service manuals if exist.