Sony MZ-NH600D Service Manual page 13

Portable minidisc player
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• Note For Printed Wiring Boards and Schematic Diagrams
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
(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.
• Main board is multi-layer printed board.
However, the patterns of intermediate-layer have not been in-
cluded in this diagrams.
• Lead Layouts
surface
Lead layout of conventional IC
CSP (chip size package)
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ω and
1
/
W or less unless otherwise
4
specified.
f
: internal component.
• C : panel designation.
Note:
Note:
The components identi-
Les composants identifiés par
fied by mark 0 or dotted
une marque 0 sont critiques
line with mark 0 are criti-
pour la sécurité.
cal for safety.
Ne les remplacer que par une
Replace only with part
pièce por tant le numéro
number specified.
spécifié.
• A : B+ Line.
• Total current is measured with MD installed.
• Power voltage is dc 1.5 V and fed with regulated dc power
supply from battery terminal.
• Voltages and waveforms are dc with respect to ground in
playback mode.
no mark : PLAYBACK
• Voltages are taken with a VOM (Input impedance 10 MΩ).
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.
E
: PLAYBACK
j
: REC
F
: USB CHECK OUT
f
: USB CHECK IN
• Abbreviation
CND : Canadian model
• Waveforms
IC501 8 (RFO)
1
(MD Play Mode)
1.0 Vp-p
500 mV/DIV, 500 ns/DIV
IC501 ra (FE)
2
(MD Play Mode)
Approx.
280 mVp-p
100 mV/DIV, 500 ns/DIV
IC501 rs (TE)
3
(MD Play Mode)
Approx.
100 mVp-p
200 mV/DIV, 500 ns/DIV
IC801 <zb, (FS4)
4
2.6 Vp-p
88 ns
1 mV/DIV, 50 ns/DIV
IC801 <zmv (FS256_OUT)
5
2.3 Vp-p
5.7 µ s
1 mV/DIV, 2 µ s/DIV
IC801 <czz (OSCO)
6
2.6 Vp-p
44 ns
1 V/DIV, 20 ns/DIV
13
13
MZ-NH600D

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