MZ-NE410/NE410CK
38
38
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.
•
f
: internal component.
•
C
: panel designation.
•
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
(
) : REC
∗
: 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
f
: RECORD
N
: USB
6-2.
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
(Side A)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Side B)
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.
surface
Lead layout of conventional IC
CSP (chip size package)
*
Replacement of IC501,IC801 on MAIN board requires a
special tool.
• The voltage and waveform of CSP (chip size package)
cannot be measured, because its lead layout is different
form that of conventional IC.
*
Replacement of IC501,IC801 on MAIN board requires a
special tool.
• Lead Layouts
• Waveforms
✩
When IC852 is damaged, replace the MAIN board.
✩
When IC852 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.
5
IC801
2
(OSCO)
(at the point of R806)
44.3ns
2
IC501
rd
(TE)(SL501)
500mV/DIV, 1ms/DIV
7
IC901
yd
(CLK)
6
IC801
<z,/
(UOSCO)
(USB mode)
(at the point of R823)
3
IC501
rs
(FE)(SL502)
1
IC501
9
(RFO)(TP1517)
500mV/DIV, 200ns/DIV
4
IC601
4
(CLK)
1V/DIV, 2
µ
s/DIV
5.67
µ
s
2.2Vp-p
580mVp-p
1.2Vp-p
2.4Vp-p
20.8ns
3.0Vp-p
1V/DIV, 2
µ
s/DIV
5.67
µ
s
2.4Vp-p
200mV/DIV, 1ms/DIV
240mVp-p
500mV/DIV, 20ns/DIV
1V/DIV, 10ns/DIV
• Abbreviation
CND: Canadian model
Summary of Contents for MZ-NE410 Notes on installing & operating OpenMG
Page 36: ...36 MZ NE410 NE410CK MEMO ...
