Sony net md walkman mz-n10 Benutzerhandbuch

38

38

Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted.  pF: µµF

50 WV or less are not indicated except for electrolytics
and tantalums.

• All resistors are in 

Ω

 and 

1

/

4

 

W or less unless otherwise

specified.

•

%

: indicates tolerance.

•

f

: internal component.

•

C

: panel designation.

•

A

: B+ Line.

• Total current is measured with MD installed.
• Power voltage is dc 6 V and fed with regulated dc power

supply from TP1976(+),TP1953(-) on MAIN board.
+side :TP1976(CN952 

q;

pin)

-side  :TP1953(CN952 

1

pin)

• Voltages and waveforms are dc with respect to ground in

playback mode(servo on).
no mark : PLAYBACK(SERVO ON)

∗

: Impossible to measure

• Voltages are taken with a VOM (Input impedance 10 M

Ω

).

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.

J

: PLAYBACK

c

: DIGITAL IN

F

: ANALOG IN

f

: RECORD

N

: USB

• The voltage and waveform of CSP (chip size package)

cannot be measured, because its lead layout is different
form that of conventional IC.

Note on Printed Wiring Board:
•

X

: parts extracted from the component side.

•

Y

: parts extracted from the conductor side.

•

: 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

(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.

• MAIN board is four-layer printed board.

However, the patterns of layers 2 and 3 have not been
included in this diagrams.

*

Replacement of IC501,IC801 on MAIN board requires a
special tool.

*

Replacement of IC501,IC801 on MAIN board requires a
special tool.

• Lead Layouts

Lead layout of conventional IC

CSP (chip size package)

✩

When IC851 is damaged, replace the 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.

Note:
Les composants identifiés par
une marque 

0

  sont critiques

pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro spécifié.