CMT-NEZ7DAB, HCD-NEZ7 - Sony Audio Service Manual (repair manual). Page 17

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HCD-NEZ7
17
17
HCD-NEZ7
Note for Printed Wiring Boards and Schematic Diagrams
Indication of transistor
C
B
These are omitted.
E
Q
Circuit Boards Location
Note on Schematic Diagram:
All capacitors are in 
µ
F unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
All resistors are in 
 and 
1
/
4
 
W or less unless otherwise
specified.
f
: internal component.
2
: nonflammable resistor.
C
: panel designation.
A
: B+ Line.
B
: B– Line.
Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
– CD Board –
no mark : CD PLAY
– Other Section –
no mark : TUNER
(
) : CD PLAY
〈〈
 
〉〉
: TAPE PLAY
{
 
} :  REC
[
] :  DAB
: Impossible to measure
Voltages are taken with a VOM (Input impedance 10 M
).
Voltage variations may be noted due to normal produc-
tion tolerances.
Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
Circled numbers refer to waveforms.
Signal path.
F
: TUNER
J
: CD PLAY
E
: TAPE PLAY
j
: REC
L
: AUX IN
f
: DAB
Note on Printed Wiring Board:
X
: parts extracted from the component side.
Y
: parts extracted from the conductor side.
W
: indicates side identified with part number.
f
: internal component.
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side)
the parts face are indicated.
B
These are omitted.
C
E
Q
B
These are omitted.
C
E
Q
HEAD PHONE board
PANEL board
CD board
MAIN board
TUNER UNIT
MODULE (DAB) TUNER
SELECTOR board
POWER board
Note: The components identified by mark 
0
 or dotted line
with mark 
0
 are critical for safety.
Replace only with part number specified.
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