MZ-N505
35
35
Note on Schematic Diagram:
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
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.
•
C
: panel designation.
•
A
: B+ Line.
• Total current is measured with MD installed.
• Power voltage is dc 3 V and fed with regulated dc power
supply from DC IN 3 V jack (J601).
• Voltages and waveforms are dc with respect to ground in
playback mode.
no mark : PLAYBACK
(
) : REC
〈〈
〉〉
: USB
∗
: 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.
E
: PLAYBACK
j
: REC (ANALOG IN)
l
: REC (DIGITAL IN)
F
: USB CHECK OUT
• The voltage and waveform of CSP (chip size package)
cannot be measured, because its lead layout is different
form that of conventional IC.
6-4.
NOTE FOR PRINTED WIRING BOARD 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 four-layer printed board.
However, the patterns of layers 2 and 3 have not been
included in this diagrams.
*
Replacement of IC801 used in this set requires a spe-
cial tool.
• Lead Layouts
surface
Lead layout of conventional IC
CSP (chip size package)
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
*
Replacement of IC801 used in this set requires a spe-
cial tool.
Содержание MZ-N505 OpenMG Jukebox NOTES on installing & operating
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